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android / platform / packages / apps / Camera / 16687a1 / . / src / com / android / camera / Camera.java
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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.camera;
import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.ContentProviderClient;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.SharedPreferences.Editor;
import android.content.res.Configuration;
import android.graphics.Bitmap;
import android.graphics.SurfaceTexture;
import android.hardware.Camera.CameraInfo;
import android.hardware.Camera.Face;
import android.hardware.Camera.FaceDetectionListener;
import android.hardware.Camera.Parameters;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.Size;
import android.location.Location;
import android.media.CameraProfile;
import android.media.MediaActionSound;
import android.net.Uri;
import android.os.Bundle;
import android.os.ConditionVariable;
import android.os.Handler;
import android.os.Looper;
import android.os.Message;
import android.os.MessageQueue;
import android.os.SystemClock;
import android.provider.MediaStore;
import android.util.Log;
import android.view.KeyEvent;
import android.view.LayoutInflater;
import android.view.MotionEvent;
import android.view.OrientationEventListener;
import android.view.View;
import android.view.WindowManager;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;
import com.android.camera.ui.CameraPicker;
import com.android.camera.ui.FaceView;
import com.android.camera.ui.IndicatorControlContainer;
import com.android.camera.ui.PopupManager;
import com.android.camera.ui.Rotatable;
import com.android.camera.ui.RotateImageView;
import com.android.camera.ui.RotateLayout;
import com.android.camera.ui.RotateTextToast;
import com.android.camera.ui.TwoStateImageView;
import com.android.camera.ui.ZoomControl;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Collections;
import java.util.Formatter;
import java.util.List;
/** The Camera activity which can preview and take pictures. */
public class Camera extends ActivityBase implements FocusManager.Listener,
ModePicker.OnModeChangeListener, FaceDetectionListener,
CameraPreference.OnPreferenceChangedListener, LocationManager.Listener,
PreviewFrameLayout.OnSizeChangedListener,
ShutterButton.OnShutterButtonListener {
private static final String TAG = "camera";
// We number the request code from 1000 to avoid collision with Gallery.
private static final int REQUEST_CROP = 1000;
private static final int FIRST_TIME_INIT = 2;
private static final int CLEAR_SCREEN_DELAY = 3;
private static final int SET_CAMERA_PARAMETERS_WHEN_IDLE = 4;
private static final int CHECK_DISPLAY_ROTATION = 5;
private static final int SHOW_TAP_TO_FOCUS_TOAST = 6;
private static final int UPDATE_THUMBNAIL = 7;
private static final int SWITCH_CAMERA = 8;
private static final int SWITCH_CAMERA_START_ANIMATION = 9;
private static final int CAMERA_OPEN_DONE = 10;
private static final int START_PREVIEW_DONE = 11;
private static final int OPEN_CAMERA_FAIL = 12;
private static final int CAMERA_DISABLED = 13;
// The subset of parameters we need to update in setCameraParameters().
private static final int UPDATE_PARAM_INITIALIZE = 1;
private static final int UPDATE_PARAM_ZOOM = 2;
private static final int UPDATE_PARAM_PREFERENCE = 4;
private static final int UPDATE_PARAM_ALL = -1;
// When setCameraParametersWhenIdle() is called, we accumulate the subsets
// needed to be updated in mUpdateSet.
private int mUpdateSet;
private static final int SCREEN_DELAY = 2 * 60 * 1000;
private int mZoomValue; // The current zoom value.
private int mZoomMax;
private ZoomControl mZoomControl;
private Parameters mInitialParams;
private boolean mFocusAreaSupported;
private boolean mMeteringAreaSupported;
private boolean mAeLockSupported;
private boolean mAwbLockSupported;
private boolean mContinousFocusSupported;
private MyOrientationEventListener mOrientationListener;
// The degrees of the device rotated clockwise from its natural orientation.
private int mOrientation = OrientationEventListener.ORIENTATION_UNKNOWN;
// The orientation compensation for icons and thumbnails. Ex: if the value
// is 90, the UI components should be rotated 90 degrees counter-clockwise.
private int mOrientationCompensation = 0;
private ComboPreferences mPreferences;
private static final String sTempCropFilename = "crop-temp";
private ContentProviderClient mMediaProviderClient;
private ShutterButton mShutterButton;
private boolean mFaceDetectionStarted = false;
private PreviewFrameLayout mPreviewFrameLayout;
private SurfaceTexture mSurfaceTexture;
private RotateDialogController mRotateDialog;
private ModePicker mModePicker;
private FaceView mFaceView;
private RotateLayout mFocusAreaIndicator;
private Rotatable mReviewCancelButton;
private Rotatable mReviewDoneButton;
private View mReviewRetakeButton;
// mCropValue and mSaveUri are used only if isImageCaptureIntent() is true.
private String mCropValue;
private Uri mSaveUri;
// Small indicators which show the camera settings in the viewfinder.
private TextView mExposureIndicator;
private ImageView mGpsIndicator;
private ImageView mFlashIndicator;
private ImageView mSceneIndicator;
private ImageView mWhiteBalanceIndicator;
private ImageView mFocusIndicator;
// A view group that contains all the small indicators.
private Rotatable mOnScreenIndicators;
// We use a thread in ImageSaver to do the work of saving images and
// generating thumbnails. This reduces the shot-to-shot time.
private ImageSaver mImageSaver;
// Similarly, we use a thread to generate the name of the picture and insert
// it into MediaStore while picture taking is still in progress.
private ImageNamer mImageNamer;
private MediaActionSound mCameraSound;
private Runnable mDoSnapRunnable = new Runnable() {
@Override
public void run() {
onShutterButtonClick();
}
};
private final StringBuilder mBuilder = new StringBuilder();
private final Formatter mFormatter = new Formatter(mBuilder);
private final Object[] mFormatterArgs = new Object[1];
/**
* An unpublished intent flag requesting to return as soon as capturing
* is completed.
*
* TODO: consider publishing by moving into MediaStore.
*/
private static final String EXTRA_QUICK_CAPTURE =
"android.intent.extra.quickCapture";
// The display rotation in degrees. This is only valid when mCameraState is
// not PREVIEW_STOPPED.
private int mDisplayRotation;
// The value for android.hardware.Camera.setDisplayOrientation.
private int mCameraDisplayOrientation;
// The value for UI components like indicators.
private int mDisplayOrientation;
// The value for android.hardware.Camera.Parameters.setRotation.
private int mJpegRotation;
private boolean mFirstTimeInitialized;
private boolean mIsImageCaptureIntent;
private static final int PREVIEW_STOPPED = 0;
private static final int IDLE = 1; // preview is active
// Focus is in progress. The exact focus state is in Focus.java.
private static final int FOCUSING = 2;
private static final int SNAPSHOT_IN_PROGRESS = 3;
// Switching between cameras.
private static final int SWITCHING_CAMERA = 4;
private int mCameraState = PREVIEW_STOPPED;
private boolean mSnapshotOnIdle = false;
private ContentResolver mContentResolver;
private boolean mDidRegister = false;
private LocationManager mLocationManager;
private final ShutterCallback mShutterCallback = new ShutterCallback();
private final PostViewPictureCallback mPostViewPictureCallback =
new PostViewPictureCallback();
private final RawPictureCallback mRawPictureCallback =
new RawPictureCallback();
private final AutoFocusCallback mAutoFocusCallback =
new AutoFocusCallback();
private final AutoFocusMoveCallback mAutoFocusMoveCallback =
new AutoFocusMoveCallback();
private final CameraErrorCallback mErrorCallback = new CameraErrorCallback();
private long mFocusStartTime;
private long mShutterCallbackTime;
private long mPostViewPictureCallbackTime;
private long mRawPictureCallbackTime;
private long mJpegPictureCallbackTime;
private long mOnResumeTime;
private long mStorageSpace;
private byte[] mJpegImageData;
// These latency time are for the CameraLatency test.
public long mAutoFocusTime;
public long mShutterLag;
public long mShutterToPictureDisplayedTime;
public long mPictureDisplayedToJpegCallbackTime;
public long mJpegCallbackFinishTime;
public long mCaptureStartTime;
// This handles everything about focus.
private FocusManager mFocusManager;
private String mSceneMode;
private Toast mNotSelectableToast;
private final Handler mHandler = new MainHandler();
private IndicatorControlContainer mIndicatorControlContainer;
private PreferenceGroup mPreferenceGroup;
private boolean mQuickCapture;
CameraStartUpThread mCameraStartUpThread;
ConditionVariable mStartPreviewPrerequisiteReady = new ConditionVariable();
// The purpose is not to block the main thread in onCreate and onResume.
private class CameraStartUpThread extends Thread {
private volatile boolean mCancelled;
public void cancel() {
mCancelled = true;
}
@Override
public void run() {
try {
// We need to check whether the activity is paused before long
// operations to ensure that onPause() can be done ASAP.
if (mCancelled) return;
mCameraDevice = Util.openCamera(Camera.this, mCameraId);
mParameters = mCameraDevice.getParameters();
// Wait until all the initialization needed by startPreview are
// done.
mStartPreviewPrerequisiteReady.block();
initializeCapabilities();
if (mFocusManager == null) initializeFocusManager();
if (mCancelled) return;
setCameraParameters(UPDATE_PARAM_ALL);
mHandler.sendEmptyMessage(CAMERA_OPEN_DONE);
if (mCancelled) return;
startPreview();
mHandler.sendEmptyMessage(START_PREVIEW_DONE);
mOnResumeTime = SystemClock.uptimeMillis();
mHandler.sendEmptyMessage(CHECK_DISPLAY_ROTATION);
} catch (CameraHardwareException e) {
mHandler.sendEmptyMessage(OPEN_CAMERA_FAIL);
} catch (CameraDisabledException e) {
mHandler.sendEmptyMessage(CAMERA_DISABLED);
}
}
}
/**
* This Handler is used to post message back onto the main thread of the
* application
*/
private class MainHandler extends Handler {
@Override
public void handleMessage(Message msg) {
switch (msg.what) {
case CLEAR_SCREEN_DELAY: {
getWindow().clearFlags(
WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
break;
}
case FIRST_TIME_INIT: {
initializeFirstTime();
break;
}
case SET_CAMERA_PARAMETERS_WHEN_IDLE: {
setCameraParametersWhenIdle(0);
break;
}
case CHECK_DISPLAY_ROTATION: {
// Set the display orientation if display rotation has changed.
// Sometimes this happens when the device is held upside
// down and camera app is opened. Rotation animation will
// take some time and the rotation value we have got may be
// wrong. Framework does not have a callback for this now.
if (Util.getDisplayRotation(Camera.this) != mDisplayRotation) {
setDisplayOrientation();
}
if (SystemClock.uptimeMillis() - mOnResumeTime < 5000) {
mHandler.sendEmptyMessageDelayed(CHECK_DISPLAY_ROTATION, 100);
}
break;
}
case SHOW_TAP_TO_FOCUS_TOAST: {
showTapToFocusToast();
break;
}
case UPDATE_THUMBNAIL: {
mImageSaver.updateThumbnail();
break;
}
case SWITCH_CAMERA: {
switchCamera();
break;
}
case SWITCH_CAMERA_START_ANIMATION: {
mCameraScreenNail.animateSwitchCamera();
break;
}
case CAMERA_OPEN_DONE: {
initializeAfterCameraOpen();
break;
}
case START_PREVIEW_DONE: {
mCameraStartUpThread = null;
setCameraState(IDLE);
startFaceDetection();
break;
}
case OPEN_CAMERA_FAIL: {
mCameraStartUpThread = null;
mOpenCameraFail = true;
Util.showErrorAndFinish(Camera.this,
R.string.cannot_connect_camera);
break;
}
case CAMERA_DISABLED: {
mCameraStartUpThread = null;
mCameraDisabled = true;
Util.showErrorAndFinish(Camera.this,
R.string.camera_disabled);
break;
}
}
}
}
private void initializeAfterCameraOpen() {
// These depend on camera parameters.
setPreviewFrameLayoutAspectRatio();
mFocusManager.setPreviewSize(mPreviewFrameLayout.getWidth(),
mPreviewFrameLayout.getHeight());
if (mIndicatorControlContainer == null) {
initializeIndicatorControl();
}
// This should be enabled after preview is started.
mIndicatorControlContainer.setEnabled(false);
initializeZoom();
updateOnScreenIndicators();
showTapToFocusToastIfNeeded();
}
private void resetExposureCompensation() {
String value = mPreferences.getString(CameraSettings.KEY_EXPOSURE,
CameraSettings.EXPOSURE_DEFAULT_VALUE);
if (!CameraSettings.EXPOSURE_DEFAULT_VALUE.equals(value)) {
Editor editor = mPreferences.edit();
editor.putString(CameraSettings.KEY_EXPOSURE, "0");
editor.apply();
}
}
private void keepMediaProviderInstance() {
// We want to keep a reference to MediaProvider in camera's lifecycle.
// TODO: Utilize mMediaProviderClient instance to replace
// ContentResolver calls.
if (mMediaProviderClient == null) {
mMediaProviderClient = mContentResolver
.acquireContentProviderClient(MediaStore.AUTHORITY);
}
}
// Snapshots can only be taken after this is called. It should be called
// once only. We could have done these things in onCreate() but we want to
// make preview screen appear as soon as possible.
private void initializeFirstTime() {
if (mFirstTimeInitialized) return;
// Create orientation listener. This should be done first because it
// takes some time to get first orientation.
mOrientationListener = new MyOrientationEventListener(Camera.this);
mOrientationListener.enable();
// Initialize location service.
boolean recordLocation = RecordLocationPreference.get(
mPreferences, mContentResolver);
mLocationManager.recordLocation(recordLocation);
keepMediaProviderInstance();
checkStorage();
// Initialize shutter button.
mShutterButton = (ShutterButton) findViewById(R.id.shutter_button);
mShutterButton.setOnShutterButtonListener(this);
mShutterButton.setVisibility(View.VISIBLE);
mImageSaver = new ImageSaver();
mImageNamer = new ImageNamer();
installIntentFilter();
mFirstTimeInitialized = true;
addIdleHandler();
}
private void showTapToFocusToastIfNeeded() {
// Show the tap to focus toast if this is the first start.
if (mFocusAreaSupported &&
mPreferences.getBoolean(CameraSettings.KEY_CAMERA_FIRST_USE_HINT_SHOWN, true)) {
// Delay the toast for one second to wait for orientation.
mHandler.sendEmptyMessageDelayed(SHOW_TAP_TO_FOCUS_TOAST, 1000);
}
}
private void addIdleHandler() {
MessageQueue queue = Looper.myQueue();
queue.addIdleHandler(new MessageQueue.IdleHandler() {
@Override
public boolean queueIdle() {
Storage.ensureOSXCompatible();
return false;
}
});
}
// If the activity is paused and resumed, this method will be called in
// onResume.
private void initializeSecondTime() {
// Start orientation listener as soon as possible because it takes
// some time to get first orientation.
mOrientationListener.enable();
// Start location update if needed.
boolean recordLocation = RecordLocationPreference.get(
mPreferences, mContentResolver);
mLocationManager.recordLocation(recordLocation);
installIntentFilter();
mImageSaver = new ImageSaver();
mImageNamer = new ImageNamer();
initializeZoom();
keepMediaProviderInstance();
checkStorage();
hidePostCaptureAlert();
if (!mIsImageCaptureIntent) {
mModePicker.setCurrentMode(ModePicker.MODE_CAMERA);
}
if (mIndicatorControlContainer != null) {
mIndicatorControlContainer.reloadPreferences();
}
}
private class ZoomChangeListener implements ZoomControl.OnZoomChangedListener {
@Override
public void onZoomValueChanged(int index) {
// Not useful to change zoom value when the activity is paused.
if (mPaused) return;
mZoomValue = index;
// Set zoom parameters asynchronously
mParameters.setZoom(mZoomValue);
mCameraDevice.setParametersAsync(mParameters);
}
}
private void initializeZoom() {
if (!mParameters.isZoomSupported()) return;
mZoomMax = mParameters.getMaxZoom();
// Currently we use immediate zoom for fast zooming to get better UX and
// there is no plan to take advantage of the smooth zoom.
mZoomControl.setZoomMax(mZoomMax);
mZoomControl.setZoomIndex(mParameters.getZoom());
mZoomControl.setOnZoomChangeListener(new ZoomChangeListener());
}
@Override
public void startFaceDetection() {
if (mFaceDetectionStarted) return;
if (mParameters.getMaxNumDetectedFaces() > 0) {
mFaceDetectionStarted = true;
mFaceView.clear();
mFaceView.setVisibility(View.VISIBLE);
mFaceView.setDisplayOrientation(mDisplayOrientation);
CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT);
mFaceView.resume();
mFocusManager.setFaceView(mFaceView);
mCameraDevice.setFaceDetectionListener(this);
mCameraDevice.startFaceDetection();
}
}
@Override
public void stopFaceDetection() {
if (!mFaceDetectionStarted) return;
if (mParameters.getMaxNumDetectedFaces() > 0) {
mFaceDetectionStarted = false;
mCameraDevice.setFaceDetectionListener(null);
mCameraDevice.stopFaceDetection();
if (mFaceView != null) mFaceView.clear();
}
}
@Override
public boolean dispatchTouchEvent(MotionEvent m) {
if (mCameraState == SWITCHING_CAMERA) return true;
// Check if the popup window should be dismissed first.
if (m.getAction() == MotionEvent.ACTION_DOWN) {
float x = m.getX();
float y = m.getY();
// Dismiss the mode selection window if the ACTION_DOWN event is out
// of its view area.
if ((mModePicker != null) && !Util.pointInView(x, y, mModePicker)) {
mModePicker.dismissModeSelection();
}
// Check if the popup window is visible. Indicator control can be
// null if camera is not opened yet.
if (mIndicatorControlContainer != null) {
View popup = mIndicatorControlContainer.getActiveSettingPopup();
if (popup != null) {
// Let popup window, indicator control or preview frame
// handle the event by themselves. Dismiss the popup window
// if users touch on other areas.
if (!Util.pointInView(x, y, popup)
&& !Util.pointInView(x, y, mIndicatorControlContainer)
&& !Util.pointInView(x, y, mPreviewFrameLayout)) {
mIndicatorControlContainer.dismissSettingPopup();
}
}
}
}
return super.dispatchTouchEvent(m);
}
private final BroadcastReceiver mReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String action = intent.getAction();
Log.d(TAG, "Received intent action=" + action);
if (action.equals(Intent.ACTION_MEDIA_MOUNTED)
|| action.equals(Intent.ACTION_MEDIA_UNMOUNTED)
|| action.equals(Intent.ACTION_MEDIA_CHECKING)) {
checkStorage();
} else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) {
checkStorage();
if (!mIsImageCaptureIntent) {
getLastThumbnail();
}
}
}
};
private void initOnScreenIndicator() {
mGpsIndicator = (ImageView) findViewById(R.id.onscreen_gps_indicator);
mExposureIndicator = (TextView) findViewById(R.id.onscreen_exposure_indicator);
mFlashIndicator = (ImageView) findViewById(R.id.onscreen_flash_indicator);
mSceneIndicator = (ImageView) findViewById(R.id.onscreen_scene_indicator);
mWhiteBalanceIndicator =
(ImageView) findViewById(R.id.onscreen_white_balance_indicator);
mFocusIndicator = (ImageView) findViewById(R.id.onscreen_focus_indicator);
}
@Override
public void showGpsOnScreenIndicator(boolean hasSignal) {
if (mGpsIndicator == null) {
return;
}
if (hasSignal) {
mGpsIndicator.setImageResource(R.drawable.ic_viewfinder_gps_on);
} else {
mGpsIndicator.setImageResource(R.drawable.ic_viewfinder_gps_no_signal);
}
mGpsIndicator.setVisibility(View.VISIBLE);
}
@Override
public void hideGpsOnScreenIndicator() {
if (mGpsIndicator == null) {
return;
}
mGpsIndicator.setVisibility(View.GONE);
}
private void updateExposureOnScreenIndicator(int value) {
if (mExposureIndicator == null) {
return;
}
if (value == 0) {
mExposureIndicator.setText("");
mExposureIndicator.setVisibility(View.GONE);
} else {
float step = mParameters.getExposureCompensationStep();
mFormatterArgs[0] = value * step;
mBuilder.delete(0, mBuilder.length());
mFormatter.format("%+1.1f", mFormatterArgs);
String exposure = mFormatter.toString();
mExposureIndicator.setText(exposure);
mExposureIndicator.setVisibility(View.VISIBLE);
}
}
private void updateFlashOnScreenIndicator(String value) {
if (mFlashIndicator == null) {
return;
}
if (value == null || Parameters.FLASH_MODE_OFF.equals(value)) {
mFlashIndicator.setVisibility(View.GONE);
} else {
mFlashIndicator.setVisibility(View.VISIBLE);
if (Parameters.FLASH_MODE_AUTO.equals(value)) {
mFlashIndicator.setImageResource(R.drawable.ic_indicators_landscape_flash_auto);
} else if (Parameters.FLASH_MODE_ON.equals(value)) {
mFlashIndicator.setImageResource(R.drawable.ic_indicators_landscape_flash_on);
} else {
// Should not happen.
mFlashIndicator.setVisibility(View.GONE);
}
}
}
private void updateSceneOnScreenIndicator(String value) {
if (mSceneIndicator == null) {
return;
}
boolean isGone = (value == null) || (Parameters.SCENE_MODE_AUTO.equals(value));
mSceneIndicator.setVisibility(isGone ? View.GONE : View.VISIBLE);
}
private void updateWhiteBalanceOnScreenIndicator(String value) {
if (mWhiteBalanceIndicator == null) {
return;
}
if (value == null || Parameters.WHITE_BALANCE_AUTO.equals(value)) {
mWhiteBalanceIndicator.setVisibility(View.GONE);
} else {
mWhiteBalanceIndicator.setVisibility(View.VISIBLE);
if (Parameters.WHITE_BALANCE_FLUORESCENT.equals(value)) {
mWhiteBalanceIndicator.setImageResource(R.drawable.ic_indicators_fluorescent);
} else if (Parameters.WHITE_BALANCE_INCANDESCENT.equals(value)) {
mWhiteBalanceIndicator.setImageResource(R.drawable.ic_indicators_incandescent);
} else if (Parameters.WHITE_BALANCE_DAYLIGHT.equals(value)) {
mWhiteBalanceIndicator.setImageResource(R.drawable.ic_indicators_sunlight);
} else if (Parameters.WHITE_BALANCE_CLOUDY_DAYLIGHT.equals(value)) {
mWhiteBalanceIndicator.setImageResource(R.drawable.ic_indicators_cloudy);
} else {
// Should not happen.
mWhiteBalanceIndicator.setVisibility(View.GONE);
}
}
}
private void updateFocusOnScreenIndicator(String value) {
if (mFocusIndicator == null) {
return;
}
// Do not show the indicator if users cannot choose.
if (mPreferenceGroup.findPreference(CameraSettings.KEY_FOCUS_MODE) == null) {
mFocusIndicator.setVisibility(View.GONE);
} else {
mFocusIndicator.setVisibility(View.VISIBLE);
if (Parameters.FOCUS_MODE_INFINITY.equals(value)) {
mFocusIndicator.setImageResource(R.drawable.ic_indicators_landscape);
} else if (Parameters.FOCUS_MODE_MACRO.equals(value)) {
mFocusIndicator.setImageResource(R.drawable.ic_indicators_macro);
} else {
// Should not happen.
mFocusIndicator.setVisibility(View.GONE);
}
}
}
private void updateOnScreenIndicators() {
updateSceneOnScreenIndicator(mParameters.getSceneMode());
updateExposureOnScreenIndicator(CameraSettings.readExposure(mPreferences));
updateFlashOnScreenIndicator(mParameters.getFlashMode());
updateWhiteBalanceOnScreenIndicator(mParameters.getWhiteBalance());
updateFocusOnScreenIndicator(mParameters.getFocusMode());
}
private final class ShutterCallback
implements android.hardware.Camera.ShutterCallback {
@Override
public void onShutter() {
mShutterCallbackTime = System.currentTimeMillis();
mShutterLag = mShutterCallbackTime - mCaptureStartTime;
Log.v(TAG, "mShutterLag = " + mShutterLag + "ms");
}
}
private final class PostViewPictureCallback implements PictureCallback {
@Override
public void onPictureTaken(
byte [] data, android.hardware.Camera camera) {
mPostViewPictureCallbackTime = System.currentTimeMillis();
Log.v(TAG, "mShutterToPostViewCallbackTime = "
+ (mPostViewPictureCallbackTime - mShutterCallbackTime)
+ "ms");
}
}
private final class RawPictureCallback implements PictureCallback {
@Override
public void onPictureTaken(
byte [] rawData, android.hardware.Camera camera) {
mRawPictureCallbackTime = System.currentTimeMillis();
Log.v(TAG, "mShutterToRawCallbackTime = "
+ (mRawPictureCallbackTime - mShutterCallbackTime) + "ms");
}
}
private final class JpegPictureCallback implements PictureCallback {
Location mLocation;
public JpegPictureCallback(Location loc) {
mLocation = loc;
}
@Override
public void onPictureTaken(
final byte [] jpegData, final android.hardware.Camera camera) {
if (mPaused) {
return;
}
mJpegPictureCallbackTime = System.currentTimeMillis();
// If postview callback has arrived, the captured image is displayed
// in postview callback. If not, the captured image is displayed in
// raw picture callback.
if (mPostViewPictureCallbackTime != 0) {
mShutterToPictureDisplayedTime =
mPostViewPictureCallbackTime - mShutterCallbackTime;
mPictureDisplayedToJpegCallbackTime =
mJpegPictureCallbackTime - mPostViewPictureCallbackTime;
} else {
mShutterToPictureDisplayedTime =
mRawPictureCallbackTime - mShutterCallbackTime;
mPictureDisplayedToJpegCallbackTime =
mJpegPictureCallbackTime - mRawPictureCallbackTime;
}
Log.v(TAG, "mPictureDisplayedToJpegCallbackTime = "
+ mPictureDisplayedToJpegCallbackTime + "ms");
mFocusManager.updateFocusUI(); // Ensure focus indicator is hidden.
if (!mIsImageCaptureIntent) {
startPreview();
setCameraState(IDLE);
startFaceDetection();
}
if (!mIsImageCaptureIntent) {
// Calculate the width and the height of the jpeg.
Size s = mParameters.getPictureSize();
int orientation = Exif.getOrientation(jpegData);
int width, height;
if ((mJpegRotation + orientation) % 180 == 0) {
width = s.width;
height = s.height;
} else {
width = s.height;
height = s.width;
}
Uri uri = mImageNamer.getUri();
String title = mImageNamer.getTitle();
mImageSaver.addImage(jpegData, uri, title, mLocation,
width, height, mThumbnailViewWidth, orientation);
} else {
mJpegImageData = jpegData;
if (!mQuickCapture) {
showPostCaptureAlert();
} else {
doAttach();
}
}
// Check this in advance of each shot so we don't add to shutter
// latency. It's true that someone else could write to the SD card in
// the mean time and fill it, but that could have happened between the
// shutter press and saving the JPEG too.
checkStorage();
long now = System.currentTimeMillis();
mJpegCallbackFinishTime = now - mJpegPictureCallbackTime;
Log.v(TAG, "mJpegCallbackFinishTime = "
+ mJpegCallbackFinishTime + "ms");
mJpegPictureCallbackTime = 0;
}
}
private final class AutoFocusCallback
implements android.hardware.Camera.AutoFocusCallback {
@Override
public void onAutoFocus(
boolean focused, android.hardware.Camera camera) {
if (mPaused) return;
mAutoFocusTime = System.currentTimeMillis() - mFocusStartTime;
Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms");
setCameraState(IDLE);
mFocusManager.onAutoFocus(focused);
}
}
private final class AutoFocusMoveCallback
implements android.hardware.Camera.AutoFocusMoveCallback {
@Override
public void onAutoFocusMoving(
boolean moving, android.hardware.Camera camera) {
mFocusManager.onAutoFocusMoving(moving);
}
}
// Each SaveRequest remembers the data needed to save an image.
private static class SaveRequest {
byte[] data;
Uri uri;
String title;
Location loc;
int width, height;
int thumbnailWidth;
int orientation;
}
// We use a queue to store the SaveRequests that have not been completed
// yet. The main thread puts the request into the queue. The saver thread
// gets it from the queue, does the work, and removes it from the queue.
//
// The main thread needs to wait for the saver thread to finish all the work
// in the queue, when the activity's onPause() is called, we need to finish
// all the work, so other programs (like Gallery) can see all the images.
//
// If the queue becomes too long, adding a new request will block the main
// thread until the queue length drops below the threshold (QUEUE_LIMIT).
// If we don't do this, we may face several problems: (1) We may OOM
// because we are holding all the jpeg data in memory. (2) We may ANR
// when we need to wait for saver thread finishing all the work (in
// onPause() or gotoGallery()) because the time to finishing a long queue
// of work may be too long.
private class ImageSaver extends Thread {
private static final int QUEUE_LIMIT = 3;
private ArrayList<SaveRequest> mQueue;
private Thumbnail mPendingThumbnail;
private Object mUpdateThumbnailLock = new Object();
private boolean mStop;
// Runs in main thread
public ImageSaver() {
mQueue = new ArrayList<SaveRequest>();
start();
}
// Runs in main thread
public void addImage(final byte[] data, Uri uri, String title,
Location loc, int width, int height, int thumbnailWidth,
int orientation) {
SaveRequest r = new SaveRequest();
r.data = data;
r.uri = uri;
r.title = title;
r.loc = (loc == null) ? null : new Location(loc); // make a copy
r.width = width;
r.height = height;
r.thumbnailWidth = thumbnailWidth;
r.orientation = orientation;
synchronized (this) {
while (mQueue.size() >= QUEUE_LIMIT) {
try {
wait();
} catch (InterruptedException ex) {
// ignore.
}
}
mQueue.add(r);
notifyAll(); // Tell saver thread there is new work to do.
}
}
// Runs in saver thread
@Override
public void run() {
while (true) {
SaveRequest r;
synchronized (this) {
if (mQueue.isEmpty()) {
notifyAll(); // notify main thread in waitDone
// Note that we can only stop after we saved all images
// in the queue.
if (mStop) break;
try {
wait();
} catch (InterruptedException ex) {
// ignore.
}
continue;
}
r = mQueue.get(0);
}
storeImage(r.data, r.uri, r.title, r.loc, r.width, r.height,
r.thumbnailWidth, r.orientation);
synchronized (this) {
mQueue.remove(0);
notifyAll(); // the main thread may wait in addImage
}
}
}
// Runs in main thread
public void waitDone() {
synchronized (this) {
while (!mQueue.isEmpty()) {
try {
wait();
} catch (InterruptedException ex) {
// ignore.
}
}
}
updateThumbnail();
}
// Runs in main thread
public void finish() {
waitDone();
synchronized (this) {
mStop = true;
notifyAll();
}
try {
join();
} catch (InterruptedException ex) {
// ignore.
}
}
// Runs in main thread (because we need to update mThumbnailView in the
// main thread)
public void updateThumbnail() {
Thumbnail t;
synchronized (mUpdateThumbnailLock) {
mHandler.removeMessages(UPDATE_THUMBNAIL);
t = mPendingThumbnail;
mPendingThumbnail = null;
}
if (t != null) {
mThumbnail = t;
mThumbnailView.setBitmap(mThumbnail.getBitmap());
}
}
// Runs in saver thread
private void storeImage(final byte[] data, Uri uri, String title,
Location loc, int width, int height, int thumbnailWidth,
int orientation) {
boolean ok = Storage.updateImage(mContentResolver, uri, title, loc,
orientation, data, width, height);
if (ok) {
boolean needThumbnail;
synchronized (this) {
// If the number of requests in the queue (include the
// current one) is greater than 1, we don't need to generate
// thumbnail for this image. Because we'll soon replace it
// with the thumbnail for some image later in the queue.
needThumbnail = (mQueue.size() <= 1);
}
if (needThumbnail) {
// Create a thumbnail whose width is equal or bigger than
// that of the thumbnail view.
int ratio = (int) Math.ceil((double) width / thumbnailWidth);
int inSampleSize = Integer.highestOneBit(ratio);
Thumbnail t = Thumbnail.createThumbnail(
data, orientation, inSampleSize, uri);
synchronized (mUpdateThumbnailLock) {
// We need to update the thumbnail in the main thread,
// so send a message to run updateThumbnail().
mPendingThumbnail = t;
mHandler.sendEmptyMessage(UPDATE_THUMBNAIL);
}
}
Util.broadcastNewPicture(Camera.this, uri);
}
}
}
private static class ImageNamer extends Thread {
private boolean mRequestPending;
private ContentResolver mResolver;
private long mDateTaken;
private int mWidth, mHeight;
private boolean mStop;
private Uri mUri;
private String mTitle;
// Runs in main thread
public ImageNamer() {
start();
}
// Runs in main thread
public synchronized void prepareUri(ContentResolver resolver,
long dateTaken, int width, int height, int rotation) {
if (rotation % 180 != 0) {
int tmp = width;
width = height;
height = tmp;
}
mRequestPending = true;
mResolver = resolver;
mDateTaken = dateTaken;
mWidth = width;
mHeight = height;
notifyAll();
}
// Runs in main thread
public synchronized Uri getUri() {
// wait until the request is done.
while (mRequestPending) {
try {
wait();
} catch (InterruptedException ex) {
// ignore.
}
}
// return the uri generated
Uri uri = mUri;
mUri = null;
return uri;
}
// Runs in main thread, should be called after getUri().
public synchronized String getTitle() {
return mTitle;
}
// Runs in namer thread
@Override
public synchronized void run() {
while (true) {
if (mStop) break;
if (!mRequestPending) {
try {
wait();
} catch (InterruptedException ex) {
// ignore.
}
continue;
}
cleanOldUri();
generateUri();
mRequestPending = false;
notifyAll();
}
cleanOldUri();
}
// Runs in main thread
public synchronized void finish() {
mStop = true;
notifyAll();
}
// Runs in namer thread
private void generateUri() {
mTitle = Util.createJpegName(mDateTaken);
mUri = Storage.newImage(mResolver, mTitle, mDateTaken, mWidth, mHeight);
}
// Runs in namer thread
private void cleanOldUri() {
if (mUri == null) return;
Storage.deleteImage(mResolver, mUri);
mUri = null;
}
}
private void setCameraState(int state) {
mCameraState = state;
switch (state) {
case PREVIEW_STOPPED:
case SNAPSHOT_IN_PROGRESS:
case FOCUSING:
case SWITCHING_CAMERA:
enableCameraControls(false);
break;
case IDLE:
enableCameraControls(true);
break;
}
}
@Override
public boolean capture() {
// If we are already in the middle of taking a snapshot then ignore.
if (mCameraDevice == null || mCameraState == SNAPSHOT_IN_PROGRESS
|| mCameraState == SWITCHING_CAMERA) {
return false;
}
mCaptureStartTime = System.currentTimeMillis();
mPostViewPictureCallbackTime = 0;
mJpegImageData = null;
// Set rotation and gps data.
mJpegRotation = Util.getJpegRotation(mCameraId, mOrientation);
mParameters.setRotation(mJpegRotation);
Location loc = mLocationManager.getCurrentLocation();
Util.setGpsParameters(mParameters, loc);
mCameraDevice.setParameters(mParameters);
mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback,
mPostViewPictureCallback, new JpegPictureCallback(loc));
Size size = mParameters.getPictureSize();
mImageNamer.prepareUri(mContentResolver, mCaptureStartTime,
size.width, size.height, mJpegRotation);
if (!mIsImageCaptureIntent) {
// Start capture animation.
mCameraScreenNail.animateCapture(getCameraRotation());
}
mFaceDetectionStarted = false;
setCameraState(SNAPSHOT_IN_PROGRESS);
return true;
}
private int getCameraRotation() {
return (mOrientationCompensation - mDisplayRotation + 360) % 360;
}
@Override
public void setFocusParameters() {
setCameraParameters(UPDATE_PARAM_PREFERENCE);
}
@Override
public void playSound(int soundId) {
mCameraSound.play(soundId);
}
private int getPreferredCameraId(ComboPreferences preferences) {
int intentCameraId = Util.getCameraFacingIntentExtras(this);
if (intentCameraId != -1) {
// Testing purpose. Launch a specific camera through the intent
// extras.
return intentCameraId;
} else {
return CameraSettings.readPreferredCameraId(preferences);
}
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mPreferences = new ComboPreferences(this);
CameraSettings.upgradeGlobalPreferences(mPreferences.getGlobal());
mCameraId = getPreferredCameraId(mPreferences);
mContentResolver = getContentResolver();
// To reduce startup time, open the camera and start the preview in
// another thread.
mCameraStartUpThread = new CameraStartUpThread();
mCameraStartUpThread.start();
setContentView(R.layout.camera);
// Surface texture is from camera screen nail and startPreview needs it.
// This must be done before startPreview.
mIsImageCaptureIntent = isImageCaptureIntent();
createCameraScreenNail(!mIsImageCaptureIntent);
mPreferences.setLocalId(this, mCameraId);
CameraSettings.upgradeLocalPreferences(mPreferences.getLocal());
mFocusAreaIndicator = (RotateLayout) findViewById(
R.id.focus_indicator_rotate_layout);
// we need to reset exposure for the preview
resetExposureCompensation();
// Starting the preview needs preferences, camera screen nail, and
// focus area indicator.
mStartPreviewPrerequisiteReady.open();
initializeControlByIntent();
mRotateDialog = new RotateDialogController(this, R.layout.rotate_dialog);
mNumberOfCameras = CameraHolder.instance().getNumberOfCameras();
mQuickCapture = getIntent().getBooleanExtra(EXTRA_QUICK_CAPTURE, false);
initializeMiscControls();
mLocationManager = new LocationManager(this, this);
initOnScreenIndicator();
// Make sure all views are disabled before camera is open.
enableCameraControls(false);
}
private void overrideCameraSettings(final String flashMode,
final String whiteBalance, final String focusMode) {
if (mIndicatorControlContainer != null) {
mIndicatorControlContainer.enableFilter(true);
mIndicatorControlContainer.overrideSettings(
CameraSettings.KEY_FLASH_MODE, flashMode,
CameraSettings.KEY_WHITE_BALANCE, whiteBalance,
CameraSettings.KEY_FOCUS_MODE, focusMode);
mIndicatorControlContainer.enableFilter(false);
}
}
private void updateSceneModeUI() {
// If scene mode is set, we cannot set flash mode, white balance, and
// focus mode, instead, we read it from driver
if (!Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) {
overrideCameraSettings(mParameters.getFlashMode(),
mParameters.getWhiteBalance(), mParameters.getFocusMode());
} else {
overrideCameraSettings(null, null, null);
}
}
private void loadCameraPreferences() {
CameraSettings settings = new CameraSettings(this, mInitialParams,
mCameraId, CameraHolder.instance().getCameraInfo());
mPreferenceGroup = settings.getPreferenceGroup(R.xml.camera_preferences);
}
private void initializeIndicatorControl() {
// setting the indicator buttons.
mIndicatorControlContainer =
(IndicatorControlContainer) findViewById(R.id.indicator_control);
loadCameraPreferences();
final String[] SETTING_KEYS = {
CameraSettings.KEY_FLASH_MODE,
CameraSettings.KEY_WHITE_BALANCE,
CameraSettings.KEY_EXPOSURE,
CameraSettings.KEY_SCENE_MODE};
final String[] OTHER_SETTING_KEYS = {
CameraSettings.KEY_RECORD_LOCATION,
CameraSettings.KEY_PICTURE_SIZE,
CameraSettings.KEY_FOCUS_MODE};
CameraPicker.setImageResourceId(R.drawable.ic_switch_photo_facing_holo_light);
mIndicatorControlContainer.initialize(this, mPreferenceGroup,
mParameters.isZoomSupported(),
SETTING_KEYS, OTHER_SETTING_KEYS);
mCameraPicker = (CameraPicker) mIndicatorControlContainer.findViewById(
R.id.camera_picker);
updateSceneModeUI();
mIndicatorControlContainer.setListener(this);
}
private boolean collapseCameraControls() {
if ((mIndicatorControlContainer != null)
&& mIndicatorControlContainer.dismissSettingPopup()) {
return true;
}
if (mModePicker != null && mModePicker.dismissModeSelection()) return true;
return false;
}
private void enableCameraControls(boolean enable) {
if (mIndicatorControlContainer != null) {
mIndicatorControlContainer.setEnabled(enable);
}
if (mModePicker != null) mModePicker.setEnabled(enable);
if (mZoomControl != null) mZoomControl.setEnabled(enable);
if (mThumbnailView != null) mThumbnailView.setEnabled(enable);
}
private class MyOrientationEventListener
extends OrientationEventListener {
public MyOrientationEventListener(Context context) {
super(context);
}
@Override
public void onOrientationChanged(int orientation) {
// We keep the last known orientation. So if the user first orient
// the camera then point the camera to floor or sky, we still have
// the correct orientation.
if (orientation == ORIENTATION_UNKNOWN) return;
mOrientation = Util.roundOrientation(orientation, mOrientation);
// When the screen is unlocked, display rotation may change. Always
// calculate the up-to-date orientationCompensation.
int orientationCompensation =
(mOrientation + Util.getDisplayRotation(Camera.this)) % 360;
if (mOrientationCompensation != orientationCompensation) {
mOrientationCompensation = orientationCompensation;
setOrientationIndicator(mOrientationCompensation, true);
}
// Show the toast after getting the first orientation changed.
if (mHandler.hasMessages(SHOW_TAP_TO_FOCUS_TOAST)) {
mHandler.removeMessages(SHOW_TAP_TO_FOCUS_TOAST);
showTapToFocusToast();
}
}
}
private void setOrientationIndicator(int orientation, boolean animation) {
Rotatable[] indicators = {mThumbnailView, mModePicker,
mIndicatorControlContainer, mZoomControl, mFocusAreaIndicator, mFaceView,
mReviewDoneButton, mRotateDialog, mOnScreenIndicators};
for (Rotatable indicator : indicators) {
if (indicator != null) indicator.setOrientation(orientation, animation);
}
// We change the orientation of the review cancel button only for tablet
// UI because there's a label along with the X icon. For phone UI, we
// don't change the orientation because there's only a symmetrical X
// icon.
if (mReviewCancelButton instanceof RotateLayout) {
mReviewCancelButton.setOrientation(orientation, animation);
}
}
@Override
public void onStop() {
super.onStop();
if (mMediaProviderClient != null) {
mMediaProviderClient.release();
mMediaProviderClient = null;
}
}
private void checkStorage() {
mStorageSpace = Storage.getAvailableSpace();
updateStorageHint(mStorageSpace);
}
@OnClickAttr
public void onThumbnailClicked(View v) {
if (isCameraIdle() && mThumbnail != null) {
if (mImageSaver != null) mImageSaver.waitDone();
gotoGallery();
}
}
// onClick handler for R.id.btn_retake
@OnClickAttr
public void onReviewRetakeClicked(View v) {
if (mPaused) return;
hidePostCaptureAlert();
startPreview();
setCameraState(IDLE);
startFaceDetection();
}
// onClick handler for R.id.btn_done
@OnClickAttr
public void onReviewDoneClicked(View v) {
doAttach();
}
// onClick handler for R.id.btn_cancel
@OnClickAttr
public void onReviewCancelClicked(View v) {
doCancel();
}
private void doAttach() {
if (mPaused) {
return;
}
byte[] data = mJpegImageData;
if (mCropValue == null) {
// First handle the no crop case -- just return the value. If the
// caller specifies a "save uri" then write the data to its
// stream. Otherwise, pass back a scaled down version of the bitmap
// directly in the extras.
if (mSaveUri != null) {
OutputStream outputStream = null;
try {
outputStream = mContentResolver.openOutputStream(mSaveUri);
outputStream.write(data);
outputStream.close();
setResultEx(RESULT_OK);
finish();
} catch (IOException ex) {
// ignore exception
} finally {
Util.closeSilently(outputStream);
}
} else {
int orientation = Exif.getOrientation(data);
Bitmap bitmap = Util.makeBitmap(data, 50 * 1024);
bitmap = Util.rotate(bitmap, orientation);
setResultEx(RESULT_OK,
new Intent("inline-data").putExtra("data", bitmap));
finish();
}
} else {
// Save the image to a temp file and invoke the cropper
Uri tempUri = null;
FileOutputStream tempStream = null;
try {
File path = getFileStreamPath(sTempCropFilename);
path.delete();
tempStream = openFileOutput(sTempCropFilename, 0);
tempStream.write(data);
tempStream.close();
tempUri = Uri.fromFile(path);
} catch (FileNotFoundException ex) {
setResultEx(Activity.RESULT_CANCELED);
finish();
return;
} catch (IOException ex) {
setResultEx(Activity.RESULT_CANCELED);
finish();
return;
} finally {
Util.closeSilently(tempStream);
}
Bundle newExtras = new Bundle();
if (mCropValue.equals("circle")) {
newExtras.putString("circleCrop", "true");
}
if (mSaveUri != null) {
newExtras.putParcelable(MediaStore.EXTRA_OUTPUT, mSaveUri);
} else {
newExtras.putBoolean("return-data", true);
}
Intent cropIntent = new Intent("com.android.camera.action.CROP");
cropIntent.setData(tempUri);
cropIntent.putExtras(newExtras);
startActivityForResult(cropIntent, REQUEST_CROP);
}
}
private void doCancel() {
setResultEx(RESULT_CANCELED, new Intent());
finish();
}
@Override
public void onShutterButtonFocus(boolean pressed) {
if (mPaused || collapseCameraControls()
|| (mCameraState == SNAPSHOT_IN_PROGRESS)
|| (mCameraState == PREVIEW_STOPPED)) return;
// Do not do focus if there is not enough storage.
if (pressed && !canTakePicture()) return;
if (pressed) {
mFocusManager.onShutterDown();
} else {
mFocusManager.onShutterUp();
}
}
@Override
public void onShutterButtonClick() {
if (mPaused || collapseCameraControls()
|| (mCameraState == SWITCHING_CAMERA)
|| (mCameraState == PREVIEW_STOPPED)) return;
// Do not take the picture if there is not enough storage.
if (mStorageSpace <= Storage.LOW_STORAGE_THRESHOLD) {
Log.i(TAG, "Not enough space or storage not ready. remaining=" + mStorageSpace);
return;
}
Log.v(TAG, "onShutterButtonClick: mCameraState=" + mCameraState);
// If the user wants to do a snapshot while the previous one is still
// in progress, remember the fact and do it after we finish the previous
// one and re-start the preview. Snapshot in progress also includes the
// state that autofocus is focusing and a picture will be taken when
// focus callback arrives.
if ((mFocusManager.isFocusingSnapOnFinish() || mCameraState == SNAPSHOT_IN_PROGRESS)
&& !mIsImageCaptureIntent) {
mSnapshotOnIdle = true;
return;
}
mSnapshotOnIdle = false;
mFocusManager.doSnap();
}
private void installIntentFilter() {
// install an intent filter to receive SD card related events.
IntentFilter intentFilter =
new IntentFilter(Intent.ACTION_MEDIA_MOUNTED);
intentFilter.addAction(Intent.ACTION_MEDIA_UNMOUNTED);
intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED);
intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING);
intentFilter.addDataScheme("file");
registerReceiver(mReceiver, intentFilter);
mDidRegister = true;
}
@Override
protected void onResume() {
mPaused = false;
super.onResume();
if (mOpenCameraFail || mCameraDisabled) return;
mJpegPictureCallbackTime = 0;
mZoomValue = 0;
// Start the preview if it is not started.
if (mCameraState == PREVIEW_STOPPED && mCameraStartUpThread == null) {
resetExposureCompensation();
mCameraStartUpThread = new CameraStartUpThread();
mCameraStartUpThread.start();
}
if (!mIsImageCaptureIntent) getLastThumbnail();
// If first time initialization is not finished, put it in the
// message queue.
if (!mFirstTimeInitialized) {
mHandler.sendEmptyMessage(FIRST_TIME_INIT);
} else {
initializeSecondTime();
}
keepScreenOnAwhile();
// Dismiss open menu if exists.
PopupManager.getInstance(this).notifyShowPopup(null);
if (mCameraSound == null) {
mCameraSound = new MediaActionSound();
// Not required, but reduces latency when playback is requested later.
mCameraSound.load(MediaActionSound.FOCUS_COMPLETE);
}
}
void waitCameraStartUpThread() {
try {
if (mCameraStartUpThread != null) {
mCameraStartUpThread.cancel();
mCameraStartUpThread.join();
mCameraStartUpThread = null;
setCameraState(IDLE);
}
} catch (InterruptedException e) {
// ignore
}
}
@Override
protected void onPause() {
mPaused = true;
super.onPause();
// Wait the camera start up thread to finish.
waitCameraStartUpThread();
stopPreview();
// Close the camera now because other activities may need to use it.
closeCamera();
if (mSurfaceTexture != null) {
mCameraScreenNail.releaseSurfaceTexture();
mSurfaceTexture = null;
}
if (mCameraSound != null) {
mCameraSound.release();
mCameraSound = null;
}
resetScreenOn();
// Clear UI.
collapseCameraControls();
if (mFaceView != null) mFaceView.clear();
if (mFirstTimeInitialized) {
mOrientationListener.disable();
if (mImageSaver != null) {
mImageSaver.finish();
mImageSaver = null;
mImageNamer.finish();
mImageNamer = null;
}
}
if (mDidRegister) {
unregisterReceiver(mReceiver);
mDidRegister = false;
}
if (mLocationManager != null) mLocationManager.recordLocation(false);
updateExposureOnScreenIndicator(0);
// If we are in an image capture intent and has taken
// a picture, we just clear it in onPause.
mJpegImageData = null;
// Remove the messages in the event queue.
mHandler.removeMessages(FIRST_TIME_INIT);
mHandler.removeMessages(CHECK_DISPLAY_ROTATION);
mHandler.removeMessages(SWITCH_CAMERA);
mHandler.removeMessages(SWITCH_CAMERA_START_ANIMATION);
mHandler.removeMessages(CAMERA_OPEN_DONE);
mHandler.removeMessages(START_PREVIEW_DONE);
mHandler.removeMessages(OPEN_CAMERA_FAIL);
mHandler.removeMessages(CAMERA_DISABLED);
mPendingSwitchCameraId = -1;
if (mFocusManager != null) mFocusManager.removeMessages();
}
private void initializeControlByIntent() {
if (mIsImageCaptureIntent) {
// Cannot use RotateImageView for "done" and "cancel" button because
// the tablet layout uses RotateLayout, which cannot be cast to
// RotateImageView.
mReviewDoneButton = (Rotatable) findViewById(R.id.btn_done);
mReviewCancelButton = (Rotatable) findViewById(R.id.btn_cancel);
mReviewRetakeButton = findViewById(R.id.btn_retake);
findViewById(R.id.btn_cancel).setVisibility(View.VISIBLE);
// Not grayed out upon disabled, to make the follow-up fade-out
// effect look smooth. Note that the review done button in tablet
// layout is not a TwoStateImageView.
if (mReviewDoneButton instanceof TwoStateImageView) {
((TwoStateImageView) mReviewDoneButton).enableFilter(false);
}
setupCaptureParams();
} else {
mThumbnailView = (RotateImageView) findViewById(R.id.thumbnail);
mThumbnailView.enableFilter(false);
mThumbnailView.setVisibility(View.VISIBLE);
mThumbnailViewWidth = mThumbnailView.getLayoutParams().width;
mModePicker = (ModePicker) findViewById(R.id.mode_picker);
mModePicker.setVisibility(View.VISIBLE);
mModePicker.setOnModeChangeListener(this);
mModePicker.setCurrentMode(ModePicker.MODE_CAMERA);
}
}
private void initializeFocusManager() {
// Create FocusManager object. startPreview needs it.
CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
boolean mirror = (info.facing == CameraInfo.CAMERA_FACING_FRONT);
String[] defaultFocusModes = getResources().getStringArray(
R.array.pref_camera_focusmode_default_array);
mFocusManager = new FocusManager(mPreferences, defaultFocusModes,
mFocusAreaIndicator, mInitialParams, this, mirror,
getMainLooper());
}
private void initializeMiscControls() {
// startPreview needs this.
mPreviewFrameLayout = (PreviewFrameLayout) findViewById(R.id.frame);
// Set touch focus listener.
setSingleTapUpListener(mPreviewFrameLayout);
mZoomControl = (ZoomControl) findViewById(R.id.zoom_control);
mOnScreenIndicators = (Rotatable) findViewById(R.id.on_screen_indicators);
mFaceView = (FaceView) findViewById(R.id.face_view);
mPreviewFrameLayout.addOnLayoutChangeListener(this);
mPreviewFrameLayout.setOnSizeChangedListener(this);
}
@Override
public void onConfigurationChanged(Configuration newConfig) {
super.onConfigurationChanged(newConfig);
setDisplayOrientation();
// Change layout in response to configuration change
LinearLayout appRoot = (LinearLayout) findViewById(R.id.camera_app_root);
appRoot.setOrientation(
newConfig.orientation == Configuration.ORIENTATION_LANDSCAPE
? LinearLayout.HORIZONTAL : LinearLayout.VERTICAL);
appRoot.removeAllViews();
LayoutInflater inflater = getLayoutInflater();
inflater.inflate(R.layout.preview_frame, appRoot);
inflater.inflate(R.layout.camera_control, appRoot);
// from onCreate()
initializeControlByIntent();
initializeFocusManager();
initializeMiscControls();
initializeIndicatorControl();
mFocusAreaIndicator = (RotateLayout) findViewById(
R.id.focus_indicator_rotate_layout);
mFocusManager.setFocusAreaIndicator(mFocusAreaIndicator);
// from onResume()
if (!mIsImageCaptureIntent) updateThumbnailView();
// from initializeFirstTime()
mShutterButton = (ShutterButton) findViewById(R.id.shutter_button);
mShutterButton.setOnShutterButtonListener(this);
mShutterButton.setVisibility(View.VISIBLE);
initializeZoom();
initOnScreenIndicator();
updateOnScreenIndicators();
mFaceView.clear();
mFaceView.setVisibility(View.VISIBLE);
mFaceView.setDisplayOrientation(mDisplayOrientation);
CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
mFaceView.setMirror(info.facing == CameraInfo.CAMERA_FACING_FRONT);
mFaceView.resume();
mFocusManager.setFaceView(mFaceView);
}
@Override
protected void onActivityResult(
int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
switch (requestCode) {
case REQUEST_CROP: {
Intent intent = new Intent();
if (data != null) {
Bundle extras = data.getExtras();
if (extras != null) {
intent.putExtras(extras);
}
}
setResultEx(resultCode, intent);
finish();
File path = getFileStreamPath(sTempCropFilename);
path.delete();
break;
}
}
}
private boolean canTakePicture() {
return isCameraIdle() && (mStorageSpace > Storage.LOW_STORAGE_THRESHOLD);
}
@Override
public void autoFocus() {
mFocusStartTime = System.currentTimeMillis();
mCameraDevice.autoFocus(mAutoFocusCallback);
setCameraState(FOCUSING);
}
@Override
public void cancelAutoFocus() {
mCameraDevice.cancelAutoFocus();
setCameraState(IDLE);
setCameraParameters(UPDATE_PARAM_PREFERENCE);
}
// Preview area is touched. Handle touch focus.
@Override
protected void onSingleTapUp(View view, int x, int y) {
if (mPaused || mCameraDevice == null || !mFirstTimeInitialized
|| mCameraState == SNAPSHOT_IN_PROGRESS
|| mCameraState == SWITCHING_CAMERA
|| mCameraState == PREVIEW_STOPPED) {
return;
}
// Do not trigger touch focus if popup window is opened.
if (collapseCameraControls()) return;
// Check if metering area or focus area is supported.
if (!mFocusAreaSupported && !mMeteringAreaSupported) return;
mFocusManager.onSingleTapUp(x, y);
}
@Override
public void onBackPressed() {
if (!isCameraIdle()) {
// ignore backs while we're taking a picture
return;
} else if (!collapseCameraControls()) {
super.onBackPressed();
}
}
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_FOCUS:
if (mFirstTimeInitialized && event.getRepeatCount() == 0) {
onShutterButtonFocus(true);
}
return true;
case KeyEvent.KEYCODE_CAMERA:
if (mFirstTimeInitialized && event.getRepeatCount() == 0) {
onShutterButtonClick();
}
return true;
case KeyEvent.KEYCODE_DPAD_CENTER:
// If we get a dpad center event without any focused view, move
// the focus to the shutter button and press it.
if (mFirstTimeInitialized && event.getRepeatCount() == 0) {
// Start auto-focus immediately to reduce shutter lag. After
// the shutter button gets the focus, onShutterButtonFocus()
// will be called again but it is fine.
if (collapseCameraControls()) return true;
onShutterButtonFocus(true);
if (mShutterButton.isInTouchMode()) {
mShutterButton.requestFocusFromTouch();
} else {
mShutterButton.requestFocus();
}
mShutterButton.setPressed(true);
}
return true;
}
return super.onKeyDown(keyCode, event);
}
@Override
public boolean onKeyUp(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_FOCUS:
if (mFirstTimeInitialized) {
onShutterButtonFocus(false);
}
return true;
}
return super.onKeyUp(keyCode, event);
}
private void closeCamera() {
if (mCameraDevice != null) {
mCameraDevice.setZoomChangeListener(null);
mCameraDevice.setFaceDetectionListener(null);
mCameraDevice.setErrorCallback(null);
CameraHolder.instance().release();
mFaceDetectionStarted = false;
mCameraDevice = null;
setCameraState(PREVIEW_STOPPED);
mFocusManager.onCameraReleased();
}
}
private void setDisplayOrientation() {
mDisplayRotation = Util.getDisplayRotation(this);
mDisplayOrientation = Util.getDisplayOrientation(mDisplayRotation, mCameraId);
mCameraDisplayOrientation = Util.getDisplayOrientation(0, mCameraId);
if (mFaceView != null) {
mFaceView.setDisplayOrientation(mDisplayOrientation);
}
mFocusManager.setDisplayOrientation(mDisplayOrientation);
}
private void startPreview() {
mFocusManager.resetTouchFocus();
mCameraDevice.setErrorCallback(mErrorCallback);
// If we're previewing already, stop the preview first (this will blank
// the screen).
if (mCameraState != PREVIEW_STOPPED) stopPreview();
setDisplayOrientation();
mCameraDevice.setDisplayOrientation(mCameraDisplayOrientation);
if (!mSnapshotOnIdle) {
// If the focus mode is continuous autofocus, call cancelAutoFocus to
// resume it because it may have been paused by autoFocus call.
if (Parameters.FOCUS_MODE_CONTINUOUS_PICTURE.equals(mFocusManager.getFocusMode())) {
mCameraDevice.cancelAutoFocus();
}
mFocusManager.setAeAwbLock(false); // Unlock AE and AWB.
}
setCameraParameters(UPDATE_PARAM_ALL);
if (mSurfaceTexture == null) {
Size size = mParameters.getPreviewSize();
if (mCameraDisplayOrientation % 180 == 0) {
mCameraScreenNail.setSize(size.width, size.height);
} else {
mCameraScreenNail.setSize(size.height, size.width);
}
notifyScreenNailChanged();
mCameraScreenNail.acquireSurfaceTexture();
mSurfaceTexture = mCameraScreenNail.getSurfaceTexture();
}
mCameraDevice.setPreviewTextureAsync(mSurfaceTexture);
Log.v(TAG, "startPreview");
mCameraDevice.startPreviewAsync();
mFocusManager.onPreviewStarted();
if (mSnapshotOnIdle) {
mHandler.post(mDoSnapRunnable);
}
}
private void stopPreview() {
if (mCameraDevice != null && mCameraState != PREVIEW_STOPPED) {
Log.v(TAG, "stopPreview");
mCameraDevice.cancelAutoFocus(); // Reset the focus.
mCameraDevice.stopPreview();
mFaceDetectionStarted = false;
}
setCameraState(PREVIEW_STOPPED);
if (mFocusManager != null) mFocusManager.onPreviewStopped();
}
private static boolean isSupported(String value, List<String> supported) {
return supported == null ? false : supported.indexOf(value) >= 0;
}
@SuppressWarnings("deprecation")
private void updateCameraParametersInitialize() {
// Reset preview frame rate to the maximum because it may be lowered by
// video camera application.
List<Integer> frameRates = mParameters.getSupportedPreviewFrameRates();
if (frameRates != null) {
Integer max = Collections.max(frameRates);
mParameters.setPreviewFrameRate(max);
}
mParameters.setRecordingHint(false);
// Disable video stabilization. Convenience methods not available in API
// level <= 14
String vstabSupported = mParameters.get("video-stabilization-supported");
if ("true".equals(vstabSupported)) {
mParameters.set("video-stabilization", "false");
}
}
private void updateCameraParametersZoom() {
// Set zoom.
if (mParameters.isZoomSupported()) {
mParameters.setZoom(mZoomValue);
}
}
private void updateCameraParametersPreference() {
if (mAeLockSupported) {
mParameters.setAutoExposureLock(mFocusManager.getAeAwbLock());
}
if (mAwbLockSupported) {
mParameters.setAutoWhiteBalanceLock(mFocusManager.getAeAwbLock());
}
if (mFocusAreaSupported) {
mParameters.setFocusAreas(mFocusManager.getFocusAreas());
}
if (mMeteringAreaSupported) {
// Use the same area for focus and metering.
mParameters.setMeteringAreas(mFocusManager.getMeteringAreas());
}
// Set picture size.
String pictureSize = mPreferences.getString(
CameraSettings.KEY_PICTURE_SIZE, null);
if (pictureSize == null) {
CameraSettings.initialCameraPictureSize(this, mParameters);
} else {
List<Size> supported = mParameters.getSupportedPictureSizes();
CameraSettings.setCameraPictureSize(
pictureSize, supported, mParameters);
}
Size size = mParameters.getPictureSize();
// Set a preview size that is closest to the viewfinder height and has
// the right aspect ratio.
List<Size> sizes = mParameters.getSupportedPreviewSizes();
Size optimalSize = Util.getOptimalPreviewSize(this, sizes,
(double) size.width / size.height);
Size original = mParameters.getPreviewSize();
if (!original.equals(optimalSize)) {
mParameters.setPreviewSize(optimalSize.width, optimalSize.height);
// Zoom related settings will be changed for different preview
// sizes, so set and read the parameters to get latest values
mCameraDevice.setParameters(mParameters);
mParameters = mCameraDevice.getParameters();
}
Log.v(TAG, "Preview size is " + optimalSize.width + "x" + optimalSize.height);
// Since change scene mode may change supported values,
// Set scene mode first,
mSceneMode = mPreferences.getString(
CameraSettings.KEY_SCENE_MODE,
getString(R.string.pref_camera_scenemode_default));
if (isSupported(mSceneMode, mParameters.getSupportedSceneModes())) {
if (!mParameters.getSceneMode().equals(mSceneMode)) {
mParameters.setSceneMode(mSceneMode);
// Setting scene mode will change the settings of flash mode,
// white balance, and focus mode. Here we read back the
// parameters, so we can know those settings.
mCameraDevice.setParameters(mParameters);
mParameters = mCameraDevice.getParameters();
}
} else {
mSceneMode = mParameters.getSceneMode();
if (mSceneMode == null) {
mSceneMode = Parameters.SCENE_MODE_AUTO;
}
}
// Set JPEG quality.
int jpegQuality = CameraProfile.getJpegEncodingQualityParameter(mCameraId,
CameraProfile.QUALITY_HIGH);
mParameters.setJpegQuality(jpegQuality);
// For the following settings, we need to check if the settings are
// still supported by latest driver, if not, ignore the settings.
// Set exposure compensation
int value = CameraSettings.readExposure(mPreferences);
int max = mParameters.getMaxExposureCompensation();
int min = mParameters.getMinExposureCompensation();
if (value >= min && value <= max) {
mParameters.setExposureCompensation(value);
} else {
Log.w(TAG, "invalid exposure range: " + value);
}
if (Parameters.SCENE_MODE_AUTO.equals(mSceneMode)) {
// Set flash mode.
String flashMode = mPreferences.getString(
CameraSettings.KEY_FLASH_MODE,
getString(R.string.pref_camera_flashmode_default));
List<String> supportedFlash = mParameters.getSupportedFlashModes();
if (isSupported(flashMode, supportedFlash)) {
mParameters.setFlashMode(flashMode);
} else {
flashMode = mParameters.getFlashMode();
if (flashMode == null) {
flashMode = getString(
R.string.pref_camera_flashmode_no_flash);
}
}
// Set white balance parameter.
String whiteBalance = mPreferences.getString(
CameraSettings.KEY_WHITE_BALANCE,
getString(R.string.pref_camera_whitebalance_default));
if (isSupported(whiteBalance,
mParameters.getSupportedWhiteBalance())) {
mParameters.setWhiteBalance(whiteBalance);
} else {
whiteBalance = mParameters.getWhiteBalance();
if (whiteBalance == null) {
whiteBalance = Parameters.WHITE_BALANCE_AUTO;
}
}
// Set focus mode.
mFocusManager.overrideFocusMode(null);
mParameters.setFocusMode(mFocusManager.getFocusMode());
} else {
mFocusManager.overrideFocusMode(mParameters.getFocusMode());
}
if (mContinousFocusSupported) {
if (mParameters.getFocusMode().equals(Parameters.FOCUS_MODE_CONTINUOUS_PICTURE)) {
mCameraDevice.setAutoFocusMoveCallback(mAutoFocusMoveCallback);
} else {
mCameraDevice.setAutoFocusMoveCallback(null);
}
}
}
// We separate the parameters into several subsets, so we can update only
// the subsets actually need updating. The PREFERENCE set needs extra
// locking because the preference can be changed from GLThread as well.
private void setCameraParameters(int updateSet) {
if ((updateSet & UPDATE_PARAM_INITIALIZE) != 0) {
updateCameraParametersInitialize();
}
if ((updateSet & UPDATE_PARAM_ZOOM) != 0) {
updateCameraParametersZoom();
}
if ((updateSet & UPDATE_PARAM_PREFERENCE) != 0) {
updateCameraParametersPreference();
}
mCameraDevice.setParameters(mParameters);
}
// If the Camera is idle, update the parameters immediately, otherwise
// accumulate them in mUpdateSet and update later.
private void setCameraParametersWhenIdle(int additionalUpdateSet) {
mUpdateSet |= additionalUpdateSet;
if (mCameraDevice == null) {
// We will update all the parameters when we open the device, so
// we don't need to do anything now.
mUpdateSet = 0;
return;
} else if (isCameraIdle()) {
setCameraParameters(mUpdateSet);
updateSceneModeUI();
mUpdateSet = 0;
} else {
if (!mHandler.hasMessages(SET_CAMERA_PARAMETERS_WHEN_IDLE)) {
mHandler.sendEmptyMessageDelayed(
SET_CAMERA_PARAMETERS_WHEN_IDLE, 1000);
}
}
}
private boolean isCameraIdle() {
return (mCameraState == IDLE) ||
((mFocusManager != null) && mFocusManager.isFocusCompleted()
&& (mCameraState != SWITCHING_CAMERA));
}
private boolean isImageCaptureIntent() {
String action = getIntent().getAction();
return (MediaStore.ACTION_IMAGE_CAPTURE.equals(action));
}
private void setupCaptureParams() {
Bundle myExtras = getIntent().getExtras();
if (myExtras != null) {
mSaveUri = (Uri) myExtras.getParcelable(MediaStore.EXTRA_OUTPUT);
mCropValue = myExtras.getString("crop");
}
}
private void showPostCaptureAlert() {
if (mIsImageCaptureIntent) {
Util.fadeOut(mIndicatorControlContainer);
Util.fadeOut(mShutterButton);
Util.fadeIn(mReviewRetakeButton);
Util.fadeIn((View) mReviewDoneButton);
}
}
private void hidePostCaptureAlert() {
if (mIsImageCaptureIntent) {
Util.fadeOut(mReviewRetakeButton);
Util.fadeOut((View) mReviewDoneButton);
Util.fadeIn(mShutterButton);
if (mIndicatorControlContainer != null) {
Util.fadeIn(mIndicatorControlContainer);
}
}
}
private void switchToOtherMode(int mode) {
if (isFinishing()) return;
if (mImageSaver != null) mImageSaver.waitDone();
if (mThumbnail != null) ThumbnailHolder.keep(mThumbnail);
MenuHelper.gotoMode(mode, Camera.this);
mHandler.removeMessages(FIRST_TIME_INIT);
finish();
}
@Override
public void onModeChanged(int mode) {
if (mode != ModePicker.MODE_CAMERA) switchToOtherMode(mode);
}
@Override
public void onSharedPreferenceChanged() {
// ignore the events after "onPause()"
if (mPaused) return;
boolean recordLocation = RecordLocationPreference.get(
mPreferences, mContentResolver);
mLocationManager.recordLocation(recordLocation);
setCameraParametersWhenIdle(UPDATE_PARAM_PREFERENCE);
setPreviewFrameLayoutAspectRatio();
updateOnScreenIndicators();
}
@Override
public void onCameraPickerClicked(int cameraId) {
if (mPaused || mPendingSwitchCameraId != -1) return;
Log.v(TAG, "Start to copy texture. cameraId=" + cameraId);
// We need to keep a preview frame for the animation before
// releasing the camera. This will trigger onPreviewTextureCopied.
mCameraScreenNail.copyTexture();
mPendingSwitchCameraId = cameraId;
// Disable all camera controls.
setCameraState(SWITCHING_CAMERA);
}
private void switchCamera() {
if (mPaused) return;
Log.v(TAG, "Start to switch camera. id=" + mPendingSwitchCameraId);
mCameraId = mPendingSwitchCameraId;
mPendingSwitchCameraId = -1;
mCameraPicker.setCameraId(mCameraId);
// from onPause
closeCamera();
collapseCameraControls();
if (mFaceView != null) mFaceView.clear();
if (mFocusManager != null) mFocusManager.removeMessages();
// Restart the camera and initialize the UI. From onCreate.
mPreferences.setLocalId(Camera.this, mCameraId);
CameraSettings.upgradeLocalPreferences(mPreferences.getLocal());
CameraOpenThread cameraOpenThread = new CameraOpenThread();
cameraOpenThread.start();
try {
cameraOpenThread.join();
} catch (InterruptedException ex) {
// ignore
}
initializeCapabilities();
CameraInfo info = CameraHolder.instance().getCameraInfo()[mCameraId];
boolean mirror = (info.facing == CameraInfo.CAMERA_FACING_FRONT);
mFocusManager.setMirror(mirror);
mFocusManager.setParameters(mInitialParams);
startPreview();
setCameraState(IDLE);
startFaceDetection();
initializeIndicatorControl();
// from onResume
setOrientationIndicator(mOrientationCompensation, false);
// from initializeFirstTime
initializeZoom();
updateOnScreenIndicators();
showTapToFocusToastIfNeeded();
// Start switch camera animation. Post a message because
// onFrameAvailable from the old camera may already exist.
mHandler.sendEmptyMessage(SWITCH_CAMERA_START_ANIMATION);
}
// Preview texture has been copied. Now camera can be released and the
// animation can be started.
@Override
protected void onPreviewTextureCopied() {
mHandler.sendEmptyMessage(SWITCH_CAMERA);
}
@Override
public void onUserInteraction() {
super.onUserInteraction();
keepScreenOnAwhile();
}
private void resetScreenOn() {
mHandler.removeMessages(CLEAR_SCREEN_DELAY);
getWindow().clearFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
private void keepScreenOnAwhile() {
mHandler.removeMessages(CLEAR_SCREEN_DELAY);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
mHandler.sendEmptyMessageDelayed(CLEAR_SCREEN_DELAY, SCREEN_DELAY);
}
@Override
public void onRestorePreferencesClicked() {
if (mPaused) return;
Runnable runnable = new Runnable() {
@Override
public void run() {
restorePreferences();
}
};
mRotateDialog.showAlertDialog(
null,
getString(R.string.confirm_restore_message),
getString(android.R.string.ok), runnable,
getString(android.R.string.cancel), null);
}
private void restorePreferences() {
// Reset the zoom. Zoom value is not stored in preference.
if (mParameters.isZoomSupported()) {
mZoomValue = 0;
setCameraParametersWhenIdle(UPDATE_PARAM_ZOOM);
mZoomControl.setZoomIndex(0);
}
if (mIndicatorControlContainer != null) {
mIndicatorControlContainer.dismissSettingPopup();
CameraSettings.restorePreferences(Camera.this, mPreferences,
mParameters);
mIndicatorControlContainer.reloadPreferences();
onSharedPreferenceChanged();
}
}
@Override
public void onOverriddenPreferencesClicked() {
if (mPaused) return;
if (mNotSelectableToast == null) {
String str = getResources().getString(R.string.not_selectable_in_scene_mode);
mNotSelectableToast = Toast.makeText(Camera.this, str, Toast.LENGTH_SHORT);
}
mNotSelectableToast.show();
}
@Override
public void onFaceDetection(Face[] faces, android.hardware.Camera camera) {
mFaceView.setFaces(faces);
}
private void showTapToFocusToast() {
new RotateTextToast(this, R.string.tap_to_focus, mOrientationCompensation).show();
// Clear the preference.
Editor editor = mPreferences.edit();
editor.putBoolean(CameraSettings.KEY_CAMERA_FIRST_USE_HINT_SHOWN, false);
editor.apply();
}
private void initializeCapabilities() {
mInitialParams = mCameraDevice.getParameters();
mFocusAreaSupported = (mInitialParams.getMaxNumFocusAreas() > 0
&& isSupported(Parameters.FOCUS_MODE_AUTO,
mInitialParams.getSupportedFocusModes()));
mMeteringAreaSupported = (mInitialParams.getMaxNumMeteringAreas() > 0);
mAeLockSupported = mInitialParams.isAutoExposureLockSupported();
mAwbLockSupported = mInitialParams.isAutoWhiteBalanceLockSupported();
mContinousFocusSupported = mInitialParams.getSupportedFocusModes().contains(
Parameters.FOCUS_MODE_CONTINUOUS_PICTURE);
}
// PreviewFrameLayout size has changed.
@Override
public void onSizeChanged(int width, int height) {
if (mFocusManager != null) mFocusManager.setPreviewSize(width, height);
}
void setPreviewFrameLayoutAspectRatio() {
// Set the preview frame aspect ratio according to the picture size.
Size size = mParameters.getPictureSize();
mPreviewFrameLayout.setAspectRatio((double) size.width / size.height);
}
}