| /* |
| * 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.ActivityNotFoundException; |
| import android.content.BroadcastReceiver; |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.IntentFilter; |
| import android.content.SharedPreferences; |
| import android.content.SharedPreferences.OnSharedPreferenceChangeListener; |
| import android.content.res.Resources; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.hardware.Camera.Parameters; |
| import android.hardware.Camera.PictureCallback; |
| import android.hardware.Camera.Size; |
| import android.location.Location; |
| import android.location.LocationManager; |
| import android.location.LocationProvider; |
| import android.media.AudioManager; |
| import android.media.ToneGenerator; |
| import android.net.Uri; |
| import android.os.Build; |
| import android.os.Bundle; |
| import android.os.Debug; |
| import android.os.Environment; |
| import android.os.Handler; |
| import android.os.Message; |
| import android.os.SystemClock; |
| import android.preference.PreferenceManager; |
| import android.provider.MediaStore; |
| import android.text.format.DateFormat; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.Display; |
| import android.view.GestureDetector; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.Menu; |
| import android.view.MenuItem; |
| import android.view.MotionEvent; |
| import android.view.OrientationEventListener; |
| import android.view.SurfaceHolder; |
| import android.view.SurfaceView; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.view.Window; |
| import android.view.WindowManager; |
| import android.view.MenuItem.OnMenuItemClickListener; |
| import android.widget.ImageView; |
| import android.widget.ZoomButtonsController; |
| |
| import com.android.camera.gallery.IImage; |
| import com.android.camera.gallery.IImageList; |
| |
| 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.List; |
| |
| /** |
| * Activity of the Camera which used to see preview and take pictures. |
| */ |
| public class Camera extends Activity implements View.OnClickListener, |
| ShutterButton.OnShutterButtonListener, SurfaceHolder.Callback, |
| Switcher.OnSwitchListener, OnScreenSettings.OnVisibilityChangedListener, |
| OnSharedPreferenceChangeListener { |
| |
| private static final String TAG = "camera"; |
| |
| private static final int CROP_MSG = 1; |
| private static final int FIRST_TIME_INIT = 2; |
| private static final int RESTART_PREVIEW = 3; |
| private static final int CLEAR_SCREEN_DELAY = 4; |
| |
| private static final String GPS_MODE_ON = "on"; |
| private static final String GPS_MODE_OFF = "off"; |
| |
| private static final int SCREEN_DELAY = 2 * 60 * 1000; |
| private static final int FOCUS_BEEP_VOLUME = 100; |
| |
| private static final String SCENE_MODE_ON = "on"; |
| private static final String SCENE_MODE_OFF = "off"; |
| |
| private boolean mZooming = false; |
| private boolean mSmoothZoomSupported = false; |
| private int mZoomValue; // The current zoom value. |
| private int mZoomMax; |
| |
| private Parameters mParameters; |
| private Parameters mInitialParameters; |
| |
| private OrientationEventListener mOrientationListener; |
| private int mLastOrientation = OrientationEventListener.ORIENTATION_UNKNOWN; |
| private SharedPreferences mPreferences; |
| |
| private static final int IDLE = 1; |
| private static final int SNAPSHOT_IN_PROGRESS = 2; |
| |
| private static final boolean SWITCH_CAMERA = true; |
| private static final boolean SWITCH_VIDEO = false; |
| |
| private int mStatus = IDLE; |
| private static final String sTempCropFilename = "crop-temp"; |
| |
| private android.hardware.Camera mCameraDevice; |
| private SurfaceView mSurfaceView; |
| private SurfaceHolder mSurfaceHolder = null; |
| private ShutterButton mShutterButton; |
| private FocusRectangle mFocusRectangle; |
| private IconIndicator mGpsIndicator; |
| private IconIndicator mFlashIndicator; |
| private IconIndicator mFocusIndicator; |
| private IconIndicator mWhitebalanceIndicator; |
| private IconIndicator mSceneModeIndicator; |
| private ToneGenerator mFocusToneGenerator; |
| private ZoomButtonsController mZoomButtons; |
| private GestureDetector mGestureDetector; |
| private Switcher mSwitcher; |
| private boolean mStartPreviewFail = false; |
| |
| // mPostCaptureAlert, mLastPictureButton, mThumbController |
| // are non-null only if isImageCaptureIntent() is true. |
| private ImageView mLastPictureButton; |
| private ThumbnailController mThumbController; |
| |
| // mCropValue and mSaveUri are used only if isImageCaptureIntent() is true. |
| private String mCropValue; |
| private Uri mSaveUri; |
| |
| private ImageCapture mImageCapture = null; |
| |
| private boolean mPreviewing; |
| private boolean mPausing; |
| private boolean mFirstTimeInitialized; |
| private boolean mIsImageCaptureIntent; |
| private boolean mRecordLocation; |
| |
| private static final int FOCUS_NOT_STARTED = 0; |
| private static final int FOCUSING = 1; |
| private static final int FOCUSING_SNAP_ON_FINISH = 2; |
| private static final int FOCUS_SUCCESS = 3; |
| private static final int FOCUS_FAIL = 4; |
| private int mFocusState = FOCUS_NOT_STARTED; |
| |
| private ContentResolver mContentResolver; |
| private boolean mDidRegister = false; |
| |
| private final ArrayList<MenuItem> mGalleryItems = new ArrayList<MenuItem>(); |
| |
| private LocationManager mLocationManager = null; |
| |
| // Use OneShotPreviewCallback to measure the time between |
| // JpegPictureCallback and preview. |
| private final OneShotPreviewCallback mOneShotPreviewCallback = |
| new OneShotPreviewCallback(); |
| private final ShutterCallback mShutterCallback = new ShutterCallback(); |
| private final RawPictureCallback mRawPictureCallback = |
| new RawPictureCallback(); |
| private final AutoFocusCallback mAutoFocusCallback = |
| new AutoFocusCallback(); |
| private final ZoomCallback mZoomCallback = new ZoomCallback(); |
| // Use the ErrorCallback to capture the crash count |
| // on the mediaserver |
| private final ErrorCallback mErrorCallback = new ErrorCallback(); |
| |
| private long mFocusStartTime; |
| private long mFocusCallbackTime; |
| private long mCaptureStartTime; |
| private long mShutterCallbackTime; |
| private long mRawPictureCallbackTime; |
| private long mJpegPictureCallbackTime; |
| private int mPicturesRemaining; |
| |
| // These latency time are for the CameraLatency test. |
| public long mAutoFocusTime; |
| public long mShutterLag; |
| public long mShutterAndRawPictureCallbackTime; |
| public long mJpegPictureCallbackTimeLag; |
| public long mRawPictureAndJpegPictureCallbackTime; |
| |
| // Add the media server tag |
| public static boolean mMediaServerDied = false; |
| // Focus mode. Options are pref_camera_focusmode_entryvalues. |
| private String mFocusMode; |
| |
| private final Handler mHandler = new MainHandler(); |
| private OnScreenSettings mSettings; |
| |
| /** |
| * 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 RESTART_PREVIEW: { |
| restartPreview(); |
| break; |
| } |
| |
| case CLEAR_SCREEN_DELAY: { |
| getWindow().clearFlags( |
| WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); |
| break; |
| } |
| |
| case FIRST_TIME_INIT: { |
| initializeFirstTime(); |
| break; |
| } |
| } |
| } |
| } |
| |
| // 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 listenter. This should be done first because it |
| // takes some time to get first orientation. |
| mOrientationListener = |
| new OrientationEventListener(Camera.this) { |
| @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/sky, we still have the correct orientation. |
| if (orientation != ORIENTATION_UNKNOWN) { |
| mLastOrientation = orientation; |
| } |
| } |
| }; |
| mOrientationListener.enable(); |
| |
| // Initialize location sevice. |
| mLocationManager = (LocationManager) |
| getSystemService(Context.LOCATION_SERVICE); |
| readPreference(); |
| if (mRecordLocation) startReceivingLocationUpdates(); |
| |
| checkStorage(); |
| |
| // Initialize last picture button. |
| mContentResolver = getContentResolver(); |
| if (!mIsImageCaptureIntent) { |
| findViewById(R.id.camera_switch).setOnClickListener(this); |
| mLastPictureButton = |
| (ImageView) findViewById(R.id.review_thumbnail); |
| mLastPictureButton.setOnClickListener(this); |
| mThumbController = new ThumbnailController( |
| getResources(), mLastPictureButton, mContentResolver); |
| mThumbController.loadData(ImageManager.getLastImageThumbPath()); |
| // Update last image thumbnail. |
| updateThumbnailButton(); |
| } |
| |
| // Initialize shutter button. |
| mShutterButton = (ShutterButton) findViewById(R.id.shutter_button); |
| mShutterButton.setOnShutterButtonListener(this); |
| mShutterButton.setVisibility(View.VISIBLE); |
| |
| mFocusRectangle = (FocusRectangle) findViewById(R.id.focus_rectangle); |
| updateFocusIndicator(); |
| |
| // Initialize GPS indicator. |
| mGpsIndicator = (IconIndicator) findViewById(R.id.gps_icon); |
| |
| ImageManager.ensureOSXCompatibleFolder(); |
| |
| installIntentFilter(); |
| |
| initializeFocusTone(); |
| |
| initializeZoom(); |
| |
| mFirstTimeInitialized = true; |
| } |
| |
| private void updateThumbnailButton() { |
| // Update last image if URI is invalid and the storage is ready. |
| if (!mThumbController.isUriValid() && mPicturesRemaining >= 0) { |
| updateLastImage(); |
| } |
| mThumbController.updateDisplayIfNeeded(); |
| } |
| |
| // 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. |
| readPreference(); |
| if (mRecordLocation) startReceivingLocationUpdates(); |
| |
| installIntentFilter(); |
| |
| initializeFocusTone(); |
| |
| checkStorage(); |
| |
| if (mZoomButtons != null) { |
| mCameraDevice.setZoomCallback(mZoomCallback); |
| } |
| |
| if (!mIsImageCaptureIntent) { |
| updateThumbnailButton(); |
| } |
| } |
| |
| private void initializeZoom() { |
| if (!mParameters.isZoomSupported()) return; |
| |
| mZoomMax = mParameters.getMaxZoom(); |
| Log.v(TAG, "Max zoom=" + mZoomMax); |
| mSmoothZoomSupported = mParameters.isSmoothZoomSupported(); |
| Log.v(TAG, "Smooth zoom supported=" + mSmoothZoomSupported); |
| |
| mGestureDetector = new GestureDetector(this, new ZoomGestureListener()); |
| mCameraDevice.setZoomCallback(mZoomCallback); |
| mZoomButtons = new ZoomButtonsController(mSurfaceView); |
| mZoomButtons.setAutoDismissed(true); |
| mZoomButtons.setZoomSpeed(100); |
| mZoomButtons.setOnZoomListener( |
| new ZoomButtonsController.OnZoomListener() { |
| public void onVisibilityChanged(boolean visible) { |
| if (visible) { |
| updateZoomButtonsEnabled(); |
| } |
| } |
| |
| public void onZoom(boolean zoomIn) { |
| if (isZooming()) return; |
| |
| if (zoomIn) { |
| if (mZoomValue < mZoomMax) { |
| if (mSmoothZoomSupported) { |
| mCameraDevice.startSmoothZoom(mZoomValue + 1); |
| mZooming = true; |
| } else { |
| mParameters.setZoom(++mZoomValue); |
| mCameraDevice.setParameters(mParameters); |
| updateZoomButtonsEnabled(); |
| } |
| } |
| } else { |
| if (mZoomValue > 0) { |
| if (mSmoothZoomSupported) { |
| mCameraDevice.startSmoothZoom(mZoomValue - 1); |
| mZooming = true; |
| } else { |
| mParameters.setZoom(--mZoomValue); |
| mCameraDevice.setParameters(mParameters); |
| updateZoomButtonsEnabled(); |
| } |
| } |
| } |
| } |
| }); |
| } |
| |
| public void onVisibilityChanged(boolean visible) { |
| // When the on-screen setting is not displayed, we show the gripper. |
| // When the on-screen setting is displayed, we hide the gripper. |
| int reverseVisibility = visible ? View.INVISIBLE : View.VISIBLE; |
| findViewById(R.id.btn_gripper).setVisibility(reverseVisibility); |
| findViewById(R.id.indicator_bar).setVisibility(reverseVisibility); |
| |
| if (visible) { |
| mPreferences.registerOnSharedPreferenceChangeListener(this); |
| } else { |
| mPreferences.unregisterOnSharedPreferenceChangeListener(this); |
| } |
| } |
| |
| private boolean isZooming() { |
| Log.v(TAG, "mZooming=" + mZooming); |
| return mZooming; |
| } |
| |
| private void updateZoomButtonsEnabled() { |
| mZoomButtons.setZoomInEnabled(mZoomValue < mZoomMax); |
| mZoomButtons.setZoomOutEnabled(mZoomValue > 0); |
| } |
| |
| private class ZoomGestureListener extends |
| GestureDetector.SimpleOnGestureListener { |
| @Override |
| public boolean onDown(MotionEvent e) { |
| // Show zoom buttons only when preview is started and snapshot |
| // is not in progress. mZoomButtons may be null if it is not |
| // initialized. |
| if (!mPausing && isCameraIdle() && mPreviewing |
| && mZoomButtons != null) { |
| mZoomButtons.setVisible(true); |
| } |
| return true; |
| } |
| |
| @Override |
| public boolean onDoubleTap(MotionEvent e) { |
| // Perform zoom only when preview is started and snapshot is not in |
| // progress. |
| if (mPausing || !isCameraIdle() || !mPreviewing |
| || mZoomButtons == null || isZooming()) { |
| return false; |
| } |
| |
| if (mZoomValue < mZoomMax) { |
| // Zoom in to the maximum. |
| while (mZoomValue < mZoomMax) { |
| mParameters.setZoom(++mZoomValue); |
| mCameraDevice.setParameters(mParameters); |
| // Wait for a while so we are not changing zoom too fast. |
| try { |
| Thread.sleep(5); |
| } catch (InterruptedException ex) { |
| } |
| } |
| } else { |
| // Zoom out to the minimum. |
| while (mZoomValue > 0) { |
| mParameters.setZoom(--mZoomValue); |
| mCameraDevice.setParameters(mParameters); |
| // Wait for a while so we are not changing zoom too fast. |
| try { |
| Thread.sleep(5); |
| } catch (InterruptedException ex) { |
| } |
| } |
| } |
| updateZoomButtonsEnabled(); |
| return true; |
| } |
| } |
| |
| @Override |
| public boolean dispatchTouchEvent(MotionEvent m) { |
| if (!super.dispatchTouchEvent(m) && mGestureDetector != null) { |
| return mGestureDetector.onTouchEvent(m); |
| } |
| return true; |
| } |
| |
| LocationListener [] mLocationListeners = new LocationListener[] { |
| new LocationListener(LocationManager.GPS_PROVIDER), |
| new LocationListener(LocationManager.NETWORK_PROVIDER) |
| }; |
| |
| private final BroadcastReceiver mReceiver = new BroadcastReceiver() { |
| @Override |
| public void onReceive(Context context, Intent intent) { |
| String action = intent.getAction(); |
| if (action.equals(Intent.ACTION_MEDIA_MOUNTED) |
| || action.equals(Intent.ACTION_MEDIA_UNMOUNTED) |
| || action.equals(Intent.ACTION_MEDIA_CHECKING) |
| || action.equals(Intent.ACTION_MEDIA_SCANNER_STARTED)) { |
| checkStorage(); |
| } else if (action.equals(Intent.ACTION_MEDIA_SCANNER_FINISHED)) { |
| checkStorage(); |
| if (!mIsImageCaptureIntent) { |
| updateThumbnailButton(); |
| } |
| } |
| } |
| }; |
| |
| private class LocationListener |
| implements android.location.LocationListener { |
| Location mLastLocation; |
| boolean mValid = false; |
| String mProvider; |
| |
| public LocationListener(String provider) { |
| mProvider = provider; |
| mLastLocation = new Location(mProvider); |
| } |
| |
| public void onLocationChanged(Location newLocation) { |
| if (newLocation.getLatitude() == 0.0 |
| && newLocation.getLongitude() == 0.0) { |
| // Hack to filter out 0.0,0.0 locations |
| return; |
| } |
| // If GPS is available before start camera, we won't get status |
| // update so update GPS indicator when we receive data. |
| if (mRecordLocation |
| && LocationManager.GPS_PROVIDER.equals(mProvider)) { |
| mGpsIndicator.setMode(GPS_MODE_ON); |
| } |
| mLastLocation.set(newLocation); |
| mValid = true; |
| } |
| |
| public void onProviderEnabled(String provider) { |
| } |
| |
| public void onProviderDisabled(String provider) { |
| mValid = false; |
| } |
| |
| public void onStatusChanged( |
| String provider, int status, Bundle extras) { |
| switch(status) { |
| case LocationProvider.OUT_OF_SERVICE: |
| case LocationProvider.TEMPORARILY_UNAVAILABLE: { |
| mValid = false; |
| if (mRecordLocation && |
| LocationManager.GPS_PROVIDER.equals(provider)) { |
| mGpsIndicator.setMode(GPS_MODE_OFF); |
| } |
| break; |
| } |
| } |
| } |
| |
| public Location current() { |
| return mValid ? mLastLocation : null; |
| } |
| } |
| |
| private final class OneShotPreviewCallback |
| implements android.hardware.Camera.PreviewCallback { |
| public void onPreviewFrame(byte[] data, |
| android.hardware.Camera camera) { |
| long now = System.currentTimeMillis(); |
| if (mJpegPictureCallbackTime != 0) { |
| mJpegPictureCallbackTimeLag = now - mJpegPictureCallbackTime; |
| Log.v(TAG, "mJpegPictureCallbackTimeLag = " |
| + mJpegPictureCallbackTimeLag + "ms"); |
| mJpegPictureCallbackTime = 0; |
| } else { |
| Log.v(TAG, "Got first frame"); |
| } |
| } |
| } |
| |
| private final class ShutterCallback |
| implements android.hardware.Camera.ShutterCallback { |
| public void onShutter() { |
| mShutterCallbackTime = System.currentTimeMillis(); |
| mShutterLag = mShutterCallbackTime - mCaptureStartTime; |
| Log.v(TAG, "mShutterLag = " + mShutterLag + "ms"); |
| clearFocusState(); |
| } |
| } |
| |
| private final class RawPictureCallback implements PictureCallback { |
| public void onPictureTaken( |
| byte [] rawData, android.hardware.Camera camera) { |
| mRawPictureCallbackTime = System.currentTimeMillis(); |
| mShutterAndRawPictureCallbackTime = |
| mRawPictureCallbackTime - mShutterCallbackTime; |
| Log.v(TAG, "mShutterAndRawPictureCallbackTime = " |
| + mShutterAndRawPictureCallbackTime + "ms"); |
| } |
| } |
| |
| private final class JpegPictureCallback implements PictureCallback { |
| Location mLocation; |
| |
| public JpegPictureCallback(Location loc) { |
| mLocation = loc; |
| } |
| |
| public void onPictureTaken( |
| final byte [] jpegData, final android.hardware.Camera camera) { |
| if (mPausing) { |
| return; |
| } |
| |
| mJpegPictureCallbackTime = System.currentTimeMillis(); |
| mRawPictureAndJpegPictureCallbackTime = |
| mJpegPictureCallbackTime - mRawPictureCallbackTime; |
| Log.v(TAG, "mRawPictureAndJpegPictureCallbackTime = " |
| + mRawPictureAndJpegPictureCallbackTime + "ms"); |
| |
| if (!mIsImageCaptureIntent) { |
| // We want to show the taken picture for a while, so we wait |
| // for at least 1.2 second before restarting the preview. |
| long delay = 1200 - ( |
| System.currentTimeMillis() - mRawPictureCallbackTime); |
| if (delay < 0) { |
| restartPreview(); |
| } else { |
| mHandler.sendEmptyMessageDelayed(RESTART_PREVIEW, delay); |
| } |
| } |
| mImageCapture.storeImage(jpegData, camera, mLocation); |
| |
| // Calculate 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. |
| calculatePicturesRemaining(); |
| } |
| } |
| |
| private final class AutoFocusCallback |
| implements android.hardware.Camera.AutoFocusCallback { |
| public void onAutoFocus( |
| boolean focused, android.hardware.Camera camera) { |
| mFocusCallbackTime = System.currentTimeMillis(); |
| mAutoFocusTime = mFocusCallbackTime - mFocusStartTime; |
| Log.v(TAG, "mAutoFocusTime = " + mAutoFocusTime + "ms"); |
| if (mFocusState == FOCUSING_SNAP_ON_FINISH) { |
| // Take the picture no matter focus succeeds or fails. No need |
| // to play the AF sound if we're about to play the shutter |
| // sound. |
| if (focused) { |
| mFocusState = FOCUS_SUCCESS; |
| } else { |
| mFocusState = FOCUS_FAIL; |
| } |
| mImageCapture.onSnap(); |
| } else if (mFocusState == FOCUSING) { |
| // User is half-pressing the focus key. Play the focus tone. |
| // Do not take the picture now. |
| ToneGenerator tg = mFocusToneGenerator; |
| if (tg != null) { |
| tg.startTone(ToneGenerator.TONE_PROP_BEEP2); |
| } |
| if (focused) { |
| mFocusState = FOCUS_SUCCESS; |
| } else { |
| mFocusState = FOCUS_FAIL; |
| } |
| } else if (mFocusState == FOCUS_NOT_STARTED) { |
| // User has released the focus key before focus completes. |
| // Do nothing. |
| } |
| updateFocusIndicator(); |
| } |
| } |
| |
| private final class ErrorCallback |
| implements android.hardware.Camera.ErrorCallback { |
| public void onError(int error, android.hardware.Camera camera) { |
| if (error == android.hardware.Camera.CAMERA_ERROR_SERVER_DIED) { |
| mMediaServerDied = true; |
| Log.v(TAG, "media server died"); |
| } |
| } |
| } |
| |
| private final class ZoomCallback |
| implements android.hardware.Camera.ZoomCallback { |
| public void onZoomUpdate(int zoomValue, boolean stopped, |
| android.hardware.Camera camera) { |
| Log.v(TAG, "ZoomCallback: zoom value=" + zoomValue + ". stopped=" |
| + stopped); |
| mZoomValue = zoomValue; |
| // Keep mParameters up to date. We do not getParameter again in |
| // takePicture. If we do not do this, wrong zoom value will be set. |
| mParameters.setZoom(zoomValue); |
| // We only care if the zoom is stopped. mZooming is set to true when |
| // we start smooth zoom. |
| if (stopped) mZooming = false; |
| updateZoomButtonsEnabled(); |
| } |
| } |
| |
| private class ImageCapture { |
| |
| private boolean mCancel = false; |
| |
| private Uri mLastContentUri; |
| |
| byte[] mCaptureOnlyData; |
| |
| // Returns the rotation degree in the jpeg header. |
| private int storeImage(byte[] data, Location loc) { |
| try { |
| long dateTaken = System.currentTimeMillis(); |
| String name = createName(dateTaken) + ".jpg"; |
| int[] degree = new int[1]; |
| mLastContentUri = ImageManager.addImage( |
| mContentResolver, |
| name, |
| dateTaken, |
| loc, // location from gps/network |
| ImageManager.CAMERA_IMAGE_BUCKET_NAME, name, |
| null, data, |
| degree); |
| if (mLastContentUri == null) { |
| // this means we got an error |
| mCancel = true; |
| } |
| if (!mCancel) { |
| ImageManager.setImageSize(mContentResolver, mLastContentUri, |
| new File(ImageManager.CAMERA_IMAGE_BUCKET_NAME, |
| name).length()); |
| } |
| return degree[0]; |
| } catch (Exception ex) { |
| Log.e(TAG, "Exception while compressing image.", ex); |
| return 0; |
| } |
| } |
| |
| public void storeImage(final byte[] data, |
| android.hardware.Camera camera, Location loc) { |
| if (!mIsImageCaptureIntent) { |
| int degree = storeImage(data, loc); |
| sendBroadcast(new Intent( |
| "com.android.camera.NEW_PICTURE", mLastContentUri)); |
| setLastPictureThumb(data, degree, |
| mImageCapture.getLastCaptureUri()); |
| mThumbController.updateDisplayIfNeeded(); |
| } else { |
| mCaptureOnlyData = data; |
| showPostCaptureAlert(); |
| } |
| } |
| |
| /** |
| * Initiate the capture of an image. |
| */ |
| public void initiate() { |
| if (mCameraDevice == null) { |
| return; |
| } |
| |
| mCancel = false; |
| |
| capture(); |
| } |
| |
| public Uri getLastCaptureUri() { |
| return mLastContentUri; |
| } |
| |
| public byte[] getLastCaptureData() { |
| return mCaptureOnlyData; |
| } |
| |
| private void capture() { |
| mCaptureOnlyData = null; |
| |
| // Set rotation. |
| int orientation = mLastOrientation; |
| if (orientation != OrientationEventListener.ORIENTATION_UNKNOWN) { |
| orientation += 90; |
| } |
| orientation = ImageManager.roundOrientation(orientation); |
| Log.v(TAG, "mLastOrientation = " + mLastOrientation |
| + ", orientation = " + orientation); |
| mParameters.setRotation(orientation); |
| |
| // Clear previous GPS location from the parameters. |
| mParameters.removeGpsData(); |
| |
| // Set GPS location. |
| Location loc = mRecordLocation ? getCurrentLocation() : null; |
| if (loc != null) { |
| double lat = loc.getLatitude(); |
| double lon = loc.getLongitude(); |
| boolean hasLatLon = (lat != 0.0d) || (lon != 0.0d); |
| |
| if (hasLatLon) { |
| mParameters.setGpsLatitude(lat); |
| mParameters.setGpsLongitude(lon); |
| if (loc.hasAltitude()) { |
| mParameters.setGpsAltitude(loc.getAltitude()); |
| } else { |
| // for NETWORK_PROVIDER location provider, we may have |
| // no altitude information, but the driver needs it, so |
| // we fake one. |
| mParameters.setGpsAltitude(0); |
| } |
| if (loc.getTime() != 0) { |
| // Location.getTime() is UTC in milliseconds. |
| // gps-timestamp is UTC in seconds. |
| long utcTimeSeconds = loc.getTime() / 1000; |
| mParameters.setGpsTimestamp(utcTimeSeconds); |
| } |
| } else { |
| loc = null; |
| } |
| } |
| |
| mCameraDevice.setParameters(mParameters); |
| |
| mCameraDevice.takePicture(mShutterCallback, mRawPictureCallback, |
| new JpegPictureCallback(loc)); |
| mPreviewing = false; |
| } |
| |
| public void onSnap() { |
| // If we are already in the middle of taking a snapshot then ignore. |
| if (mPausing || mStatus == SNAPSHOT_IN_PROGRESS) { |
| return; |
| } |
| mCaptureStartTime = System.currentTimeMillis(); |
| |
| // Don't check the filesystem here, we can't afford the latency. |
| // Instead, check the cached value which was calculated when the |
| // preview was restarted. |
| if (mPicturesRemaining < 1) { |
| updateStorageHint(mPicturesRemaining); |
| return; |
| } |
| |
| mStatus = SNAPSHOT_IN_PROGRESS; |
| |
| mImageCapture.initiate(); |
| } |
| |
| private void clearLastData() { |
| mCaptureOnlyData = null; |
| } |
| } |
| |
| public boolean saveDataToFile(String filePath, byte[] data) { |
| FileOutputStream f = null; |
| try { |
| f = new FileOutputStream(filePath); |
| f.write(data); |
| } catch (IOException e) { |
| return false; |
| } finally { |
| MenuHelper.closeSilently(f); |
| } |
| return true; |
| } |
| |
| private void setLastPictureThumb(byte[] data, int degree, Uri uri) { |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| options.inSampleSize = 16; |
| Bitmap lastPictureThumb = |
| BitmapFactory.decodeByteArray(data, 0, data.length, options); |
| lastPictureThumb = Util.rotate(lastPictureThumb, degree); |
| mThumbController.setData(uri, lastPictureThumb); |
| } |
| |
| private static String createName(long dateTaken) { |
| return DateFormat.format("yyyy-MM-dd kk.mm.ss", dateTaken).toString(); |
| } |
| |
| @Override |
| public void onCreate(Bundle icicle) { |
| super.onCreate(icicle); |
| |
| Window win = getWindow(); |
| win.addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON); |
| setContentView(R.layout.camera); |
| mSurfaceView = (SurfaceView) findViewById(R.id.camera_preview); |
| |
| mPreferences = PreferenceManager.getDefaultSharedPreferences(this); |
| |
| /* |
| * To reduce startup time, we start the preview in another thread. |
| * We make sure the preview is started at the end of onCreate. |
| */ |
| Thread startPreviewThread = new Thread(new Runnable() { |
| public void run() { |
| try { |
| mStartPreviewFail = false; |
| startPreview(); |
| } catch (CameraHardwareException e) { |
| // In eng build, we throw the exception so that test tool |
| // can detect it and report it |
| if ("eng".equals(Build.TYPE)) { |
| throw new RuntimeException(e); |
| } |
| mStartPreviewFail = true; |
| } |
| } |
| }); |
| startPreviewThread.start(); |
| |
| // don't set mSurfaceHolder here. We have it set ONLY within |
| // surfaceChanged / surfaceDestroyed, other parts of the code |
| // assume that when it is set, the surface is also set. |
| SurfaceHolder holder = mSurfaceView.getHolder(); |
| holder.addCallback(this); |
| holder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS); |
| |
| mIsImageCaptureIntent = isImageCaptureIntent(); |
| if (mIsImageCaptureIntent) { |
| setupCaptureParams(); |
| } |
| |
| LayoutInflater inflater = getLayoutInflater(); |
| |
| ViewGroup rootView = (ViewGroup) findViewById(R.id.camera); |
| if (mIsImageCaptureIntent) { |
| View controlBar = inflater.inflate( |
| R.layout.attach_camera_control, rootView); |
| controlBar.findViewById(R.id.btn_cancel).setOnClickListener(this); |
| controlBar.findViewById(R.id.btn_retake).setOnClickListener(this); |
| controlBar.findViewById(R.id.btn_done).setOnClickListener(this); |
| } else { |
| inflater.inflate(R.layout.camera_control, rootView); |
| mSwitcher = ((Switcher) findViewById(R.id.camera_switch)); |
| mSwitcher.setOnSwitchListener(this); |
| mSwitcher.addTouchView(findViewById(R.id.camera_switch_set)); |
| } |
| findViewById(R.id.btn_gripper) |
| .setOnTouchListener(new GripperTouchListener()); |
| |
| mFlashIndicator = (IconIndicator) findViewById(R.id.flash_icon); |
| mFocusIndicator = (IconIndicator) findViewById(R.id.focus_icon); |
| mSceneModeIndicator = (IconIndicator) findViewById(R.id.scenemode_icon); |
| mWhitebalanceIndicator = |
| (IconIndicator) findViewById(R.id.whitebalance_icon); |
| |
| // Make sure preview is started. |
| try { |
| startPreviewThread.join(); |
| if (mStartPreviewFail) { |
| showCameraErrorAndFinish(); |
| return; |
| } |
| } catch (InterruptedException ex) { |
| // ignore |
| } |
| } |
| |
| private class GripperTouchListener implements View.OnTouchListener { |
| public boolean onTouch(View view, MotionEvent event) { |
| switch (event.getAction()) { |
| case MotionEvent.ACTION_DOWN: |
| return true; |
| case MotionEvent.ACTION_UP: |
| showOnScreenSettings(); |
| return true; |
| } |
| return false; |
| } |
| } |
| |
| @Override |
| public void onStart() { |
| super.onStart(); |
| if (!mIsImageCaptureIntent) { |
| mSwitcher.setSwitch(SWITCH_CAMERA); |
| } |
| } |
| |
| private void checkStorage() { |
| if (ImageManager.isMediaScannerScanning(getContentResolver())) { |
| mPicturesRemaining = MenuHelper.NO_STORAGE_ERROR; |
| } else { |
| calculatePicturesRemaining(); |
| } |
| updateStorageHint(mPicturesRemaining); |
| } |
| |
| |
| private void showOnScreenSettings() { |
| if (mSettings == null) { |
| mSettings = new OnScreenSettings( |
| findViewById(R.id.camera_preview)); |
| CameraSettings helper = |
| new CameraSettings(this, mInitialParameters); |
| mSettings.setPreferenceScreen(helper |
| .getPreferenceScreen(R.xml.camera_preferences)); |
| mSettings.setOnVisibilityChangedListener(this); |
| |
| String sceneMode = mParameters.getSceneMode(); |
| if (sceneMode == null |
| || Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { |
| // If scene mode is auto, cancel override in settings |
| mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, null); |
| mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, null); |
| mSettings.overrideSettings( |
| CameraSettings.KEY_WHITE_BALANCE, null); |
| } else { |
| // If scene mode is not auto, override the value in settings |
| mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, |
| mParameters.getFlashMode()); |
| mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, |
| mParameters.getFocusMode()); |
| mSettings.overrideSettings(CameraSettings.KEY_WHITE_BALANCE, |
| mParameters.getWhiteBalance()); |
| } |
| } |
| |
| mSettings.setVisible(true); |
| } |
| |
| public void onClick(View v) { |
| switch (v.getId()) { |
| case R.id.btn_retake: |
| hidePostCaptureAlert(); |
| restartPreview(); |
| break; |
| case R.id.review_thumbnail: |
| if (isCameraIdle()) { |
| viewLastImage(); |
| } |
| break; |
| case R.id.btn_done: |
| doAttach(); |
| break; |
| case R.id.btn_cancel: |
| doCancel(); |
| } |
| } |
| |
| private Bitmap createCaptureBitmap(byte[] data) { |
| // This is really stupid...we just want to read the orientation in |
| // the jpeg header. |
| String filepath = ImageManager.getTempJpegPath(); |
| int degree = 0; |
| if (saveDataToFile(filepath, data)) { |
| degree = ImageManager.getExifOrientation(filepath); |
| new File(filepath).delete(); |
| } |
| |
| // Limit to 50k pixels so we can return it in the intent. |
| Bitmap bitmap = Util.makeBitmap(data, 50*1024); |
| bitmap = Util.rotate(bitmap, degree); |
| return bitmap; |
| } |
| |
| private void doAttach() { |
| if (mPausing) { |
| return; |
| } |
| |
| byte[] data = mImageCapture.getLastCaptureData(); |
| |
| 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 it's |
| // 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(); |
| |
| setResult(RESULT_OK); |
| finish(); |
| } catch (IOException ex) { |
| // ignore exception |
| } finally { |
| Util.closeSilently(outputStream); |
| } |
| } else { |
| Bitmap bitmap = createCaptureBitmap(data); |
| setResult(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) { |
| setResult(Activity.RESULT_CANCELED); |
| finish(); |
| return; |
| } catch (IOException ex) { |
| setResult(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, CROP_MSG); |
| } |
| } |
| |
| private void doCancel() { |
| setResult(RESULT_CANCELED, new Intent()); |
| finish(); |
| } |
| |
| public void onShutterButtonFocus(ShutterButton button, boolean pressed) { |
| if (mPausing) { |
| return; |
| } |
| switch (button.getId()) { |
| case R.id.shutter_button: |
| doFocus(pressed); |
| break; |
| } |
| } |
| |
| public void onShutterButtonClick(ShutterButton button) { |
| if (mPausing) { |
| return; |
| } |
| switch (button.getId()) { |
| case R.id.shutter_button: |
| doSnap(); |
| break; |
| } |
| } |
| |
| private OnScreenHint mStorageHint; |
| |
| private void updateStorageHint(int remaining) { |
| String noStorageText = null; |
| |
| if (remaining == MenuHelper.NO_STORAGE_ERROR) { |
| String state = Environment.getExternalStorageState(); |
| if (state == Environment.MEDIA_CHECKING || |
| ImageManager.isMediaScannerScanning(getContentResolver())) { |
| noStorageText = getString(R.string.preparing_sd); |
| } else { |
| noStorageText = getString(R.string.no_storage); |
| } |
| } else if (remaining < 1) { |
| noStorageText = getString(R.string.not_enough_space); |
| } |
| |
| if (noStorageText != null) { |
| if (mStorageHint == null) { |
| mStorageHint = OnScreenHint.makeText(this, noStorageText); |
| } else { |
| mStorageHint.setText(noStorageText); |
| } |
| mStorageHint.show(); |
| } else if (mStorageHint != null) { |
| mStorageHint.cancel(); |
| mStorageHint = null; |
| } |
| } |
| |
| 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_STARTED); |
| intentFilter.addAction(Intent.ACTION_MEDIA_SCANNER_FINISHED); |
| intentFilter.addAction(Intent.ACTION_MEDIA_CHECKING); |
| intentFilter.addDataScheme("file"); |
| registerReceiver(mReceiver, intentFilter); |
| mDidRegister = true; |
| } |
| |
| private void initializeFocusTone() { |
| // Initialize focus tone generator. |
| try { |
| mFocusToneGenerator = new ToneGenerator( |
| AudioManager.STREAM_SYSTEM, FOCUS_BEEP_VOLUME); |
| } catch (Throwable ex) { |
| Log.w(TAG, "Exception caught while creating tone generator: ", ex); |
| mFocusToneGenerator = null; |
| } |
| } |
| |
| private void readPreference() { |
| mRecordLocation = mPreferences.getBoolean( |
| "pref_camera_recordlocation_key", false); |
| mFocusMode = mPreferences.getString( |
| CameraSettings.KEY_FOCUS_MODE, |
| getString(R.string.pref_camera_focusmode_default)); |
| } |
| |
| @Override |
| public void onResume() { |
| super.onResume(); |
| |
| mPausing = false; |
| mJpegPictureCallbackTime = 0; |
| mZoomValue = 0; |
| mImageCapture = new ImageCapture(); |
| |
| // Start the preview if it is not started. |
| if (!mPreviewing && !mStartPreviewFail) { |
| try { |
| startPreview(); |
| } catch (CameraHardwareException e) { |
| showCameraErrorAndFinish(); |
| return; |
| } |
| } |
| |
| if (mSurfaceHolder != null) { |
| // If first time initialization is not finished, put it in the |
| // message queue. |
| if (!mFirstTimeInitialized) { |
| mHandler.sendEmptyMessage(FIRST_TIME_INIT); |
| } else { |
| initializeSecondTime(); |
| } |
| } |
| keepScreenOnAwhile(); |
| } |
| |
| private static ImageManager.DataLocation dataLocation() { |
| return ImageManager.DataLocation.EXTERNAL; |
| } |
| |
| @Override |
| protected void onPause() { |
| mPausing = true; |
| stopPreview(); |
| // Close the camera now because other activities may need to use it. |
| closeCamera(); |
| resetScreenOn(); |
| |
| if (mSettings != null && mSettings.isVisible()) { |
| mSettings.setVisible(false); |
| } |
| |
| if (mFirstTimeInitialized) { |
| mOrientationListener.disable(); |
| mGpsIndicator.setMode(GPS_MODE_OFF); |
| if (!mIsImageCaptureIntent) { |
| mThumbController.storeData( |
| ImageManager.getLastImageThumbPath()); |
| } |
| hidePostCaptureAlert(); |
| } |
| |
| if (mDidRegister) { |
| unregisterReceiver(mReceiver); |
| mDidRegister = false; |
| } |
| stopReceivingLocationUpdates(); |
| |
| if (mFocusToneGenerator != null) { |
| mFocusToneGenerator.release(); |
| mFocusToneGenerator = null; |
| } |
| |
| if (mStorageHint != null) { |
| mStorageHint.cancel(); |
| mStorageHint = null; |
| } |
| |
| // If we are in an image capture intent and has taken |
| // a picture, we just clear it in onPause. |
| mImageCapture.clearLastData(); |
| mImageCapture = null; |
| |
| // This is necessary to make the ZoomButtonsController unregister |
| // its configuration change receiver. |
| if (mZoomButtons != null) { |
| mZoomButtons.setVisible(false); |
| } |
| |
| // Remove the messages in the event queue. |
| mHandler.removeMessages(RESTART_PREVIEW); |
| mHandler.removeMessages(FIRST_TIME_INIT); |
| |
| super.onPause(); |
| } |
| |
| @Override |
| protected void onActivityResult( |
| int requestCode, int resultCode, Intent data) { |
| switch (requestCode) { |
| case CROP_MSG: { |
| Intent intent = new Intent(); |
| if (data != null) { |
| Bundle extras = data.getExtras(); |
| if (extras != null) { |
| intent.putExtras(extras); |
| } |
| } |
| setResult(resultCode, intent); |
| finish(); |
| |
| File path = getFileStreamPath(sTempCropFilename); |
| path.delete(); |
| |
| break; |
| } |
| } |
| } |
| |
| private boolean canTakePicture() { |
| return isCameraIdle() && mPreviewing && (mPicturesRemaining > 0); |
| } |
| |
| private void autoFocus() { |
| // Initiate autofocus only when preview is started and snapshot is not |
| // in progress. |
| if (canTakePicture()) { |
| Log.v(TAG, "Start autofocus."); |
| if (mZoomButtons != null) mZoomButtons.setVisible(false); |
| mFocusStartTime = System.currentTimeMillis(); |
| mFocusState = FOCUSING; |
| updateFocusIndicator(); |
| mCameraDevice.autoFocus(mAutoFocusCallback); |
| } |
| } |
| |
| private void cancelAutoFocus() { |
| // User releases half-pressed focus key. |
| if (mFocusState == FOCUSING || mFocusState == FOCUS_SUCCESS |
| || mFocusState == FOCUS_FAIL) { |
| Log.v(TAG, "Cancel autofocus."); |
| mCameraDevice.cancelAutoFocus(); |
| } |
| if (mFocusState != FOCUSING_SNAP_ON_FINISH) { |
| clearFocusState(); |
| } |
| } |
| |
| private void clearFocusState() { |
| mFocusState = FOCUS_NOT_STARTED; |
| updateFocusIndicator(); |
| } |
| |
| private void updateFocusIndicator() { |
| if (mFocusRectangle == null) return; |
| |
| if (mFocusState == FOCUSING || mFocusState == FOCUSING_SNAP_ON_FINISH) { |
| mFocusRectangle.showStart(); |
| } else if (mFocusState == FOCUS_SUCCESS) { |
| mFocusRectangle.showSuccess(); |
| } else if (mFocusState == FOCUS_FAIL) { |
| mFocusRectangle.showFail(); |
| } else { |
| mFocusRectangle.clear(); |
| } |
| } |
| |
| @Override |
| public void onBackPressed() { |
| if (!isCameraIdle()) { |
| // ignore backs while we're taking a picture |
| return; |
| } |
| super.onBackPressed(); |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| switch (keyCode) { |
| case KeyEvent.KEYCODE_FOCUS: |
| if (mFirstTimeInitialized && event.getRepeatCount() == 0) { |
| doFocus(true); |
| } |
| return true; |
| case KeyEvent.KEYCODE_CAMERA: |
| if (mFirstTimeInitialized && event.getRepeatCount() == 0) { |
| doSnap(); |
| } |
| 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, doFocus() will be |
| // called again but it is fine. |
| doFocus(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) { |
| doFocus(false); |
| } |
| return true; |
| case KeyEvent.KEYCODE_MENU: |
| if (mIsImageCaptureIntent) { |
| showOnScreenSettings(); |
| return true; |
| } |
| break; |
| } |
| return super.onKeyUp(keyCode, event); |
| } |
| |
| private void doSnap() { |
| Log.v(TAG, "doSnap: mFocusState=" + mFocusState); |
| // If the user has half-pressed the shutter and focus is completed, we |
| // can take the photo right away. If the focus mode is infinity, we can |
| // also take the photo. |
| if (mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY) |
| || (mFocusState == FOCUS_SUCCESS |
| || mFocusState == FOCUS_FAIL)) { |
| if (mZoomButtons != null) mZoomButtons.setVisible(false); |
| mImageCapture.onSnap(); |
| } else if (mFocusState == FOCUSING) { |
| // Half pressing the shutter (i.e. the focus button event) will |
| // already have requested AF for us, so just request capture on |
| // focus here. |
| mFocusState = FOCUSING_SNAP_ON_FINISH; |
| } else if (mFocusState == FOCUS_NOT_STARTED) { |
| // Focus key down event is dropped for some reasons. Just ignore. |
| } |
| } |
| |
| private void doFocus(boolean pressed) { |
| // Do the focus if the mode is not infinity. |
| if (!mFocusMode.equals(Parameters.FOCUS_MODE_INFINITY)) { |
| if (pressed) { // Focus key down. |
| autoFocus(); |
| } else { // Focus key up. |
| cancelAutoFocus(); |
| } |
| } |
| } |
| |
| public void surfaceChanged(SurfaceHolder holder, int format, int w, int h) { |
| // Make sure we have a surface in the holder before proceeding. |
| if (holder.getSurface() == null) { |
| Log.d(TAG, "holder.getSurface() == null"); |
| return; |
| } |
| |
| // The mCameraDevice will be null if it fails to connect to the camera |
| // hardware. In this case we will show a dialog and then finish the |
| // activity, so it's OK to ignore it. |
| if (mCameraDevice == null) return; |
| |
| mSurfaceHolder = holder; |
| |
| // Sometimes surfaceChanged is called after onPause. Ignore it. |
| if (mPausing || isFinishing()) return; |
| |
| // Set preview display if the surface is being created. Preview was |
| // already started. |
| if (holder.isCreating()) { |
| setPreviewDisplay(holder); |
| } |
| |
| // If first time initialization is not finished, send a message to do |
| // it later. We want to finish surfaceChanged as soon as possible to let |
| // user see preview first. |
| if (!mFirstTimeInitialized) { |
| mHandler.sendEmptyMessage(FIRST_TIME_INIT); |
| } else { |
| initializeSecondTime(); |
| } |
| } |
| |
| public void surfaceCreated(SurfaceHolder holder) { |
| } |
| |
| public void surfaceDestroyed(SurfaceHolder holder) { |
| stopPreview(); |
| mSurfaceHolder = null; |
| } |
| |
| private void closeCamera() { |
| if (mCameraDevice != null) { |
| CameraHolder.instance().release(); |
| if (mZoomButtons != null) mCameraDevice.setZoomCallback(null); |
| mCameraDevice = null; |
| mPreviewing = false; |
| } |
| } |
| |
| private void ensureCameraDevice() throws CameraHardwareException { |
| if (mCameraDevice == null) { |
| mCameraDevice = CameraHolder.instance().open(); |
| mInitialParameters = mCameraDevice.getParameters(); |
| } |
| } |
| |
| private void updateLastImage() { |
| IImageList list = ImageManager.makeImageList( |
| mContentResolver, |
| dataLocation(), |
| ImageManager.INCLUDE_IMAGES, |
| ImageManager.SORT_ASCENDING, |
| ImageManager.CAMERA_IMAGE_BUCKET_ID); |
| int count = list.getCount(); |
| if (count > 0) { |
| IImage image = list.getImageAt(count - 1); |
| Uri uri = image.fullSizeImageUri(); |
| mThumbController.setData(uri, image.miniThumbBitmap()); |
| } else { |
| mThumbController.setData(null, null); |
| } |
| list.close(); |
| } |
| |
| private void showCameraErrorAndFinish() { |
| Resources ress = getResources(); |
| Util.showFatalErrorAndFinish(Camera.this, |
| ress.getString(R.string.camera_error_title), |
| ress.getString(R.string.cannot_connect_camera)); |
| } |
| |
| private void restartPreview() { |
| // make sure the surfaceview fills the whole screen when previewing |
| try { |
| startPreview(); |
| } catch (CameraHardwareException e) { |
| showCameraErrorAndFinish(); |
| return; |
| } |
| } |
| |
| private void setPreviewDisplay(SurfaceHolder holder) { |
| try { |
| mCameraDevice.setPreviewDisplay(holder); |
| } catch (Throwable ex) { |
| closeCamera(); |
| throw new RuntimeException("setPreviewDisplay failed", ex); |
| } |
| } |
| |
| private void startPreview() throws CameraHardwareException { |
| if (mPausing || isFinishing()) return; |
| |
| ensureCameraDevice(); |
| |
| // If we're previewing already, stop the preview first (this will blank |
| // the screen). |
| if (mPreviewing) stopPreview(); |
| |
| setPreviewDisplay(mSurfaceHolder); |
| setCameraParameters(); |
| |
| final long wallTimeStart = SystemClock.elapsedRealtime(); |
| final long threadTimeStart = Debug.threadCpuTimeNanos(); |
| |
| // Set one shot preview callback for latency measurement. |
| mCameraDevice.setOneShotPreviewCallback(mOneShotPreviewCallback); |
| mCameraDevice.setErrorCallback(mErrorCallback); |
| |
| try { |
| Log.v(TAG, "startPreview"); |
| mCameraDevice.startPreview(); |
| } catch (Throwable ex) { |
| closeCamera(); |
| throw new RuntimeException("startPreview failed", ex); |
| } |
| mPreviewing = true; |
| mZooming = false; |
| mStatus = IDLE; |
| |
| long threadTimeEnd = Debug.threadCpuTimeNanos(); |
| long wallTimeEnd = SystemClock.elapsedRealtime(); |
| if ((wallTimeEnd - wallTimeStart) > 3000) { |
| Log.w(TAG, "startPreview() to " + (wallTimeEnd - wallTimeStart) |
| + " ms. Thread time was" |
| + (threadTimeEnd - threadTimeStart) / 1000000 + " ms."); |
| } |
| } |
| |
| private void stopPreview() { |
| if (mCameraDevice != null && mPreviewing) { |
| Log.v(TAG, "stopPreview"); |
| mCameraDevice.stopPreview(); |
| } |
| mPreviewing = false; |
| // If auto focus was in progress, it would have been canceled. |
| clearFocusState(); |
| } |
| |
| private Size getOptimalPreviewSize(List<Size> sizes, double targetRatio) { |
| final double ASPECT_TOLERANCE = 0.05; |
| if (sizes == null) return null; |
| |
| Size optimalSize = null; |
| double minDiff = Double.MAX_VALUE; |
| |
| // Because of bugs of overlay and layout, we sometimes will try to |
| // layout the viewfinder in the portrait orientation and thus get the |
| // wrong size of mSurfaceView. When we change the preview size, the |
| // new overlay will be created before the old one closed, which causes |
| // an exception. For now, just get the screen size |
| |
| Display display = getWindowManager().getDefaultDisplay(); |
| int targetHeight = Math.min(display.getHeight(), display.getWidth()); |
| |
| if (targetHeight <= 0) { |
| // We don't know the size of SurefaceView, use screen height |
| WindowManager windowManager = (WindowManager) |
| getSystemService(Context.WINDOW_SERVICE); |
| targetHeight = windowManager.getDefaultDisplay().getHeight(); |
| } |
| |
| // Try to find an size match aspect ratio and size |
| for (Size size : sizes) { |
| double ratio = (double) size.width / size.height; |
| if (Math.abs(ratio - targetRatio) > ASPECT_TOLERANCE) continue; |
| if (Math.abs(size.height - targetHeight) < minDiff) { |
| optimalSize = size; |
| minDiff = Math.abs(size.height - targetHeight); |
| } |
| } |
| |
| // Cannot find the one match the aspect ratio, ignore the requirement |
| if (optimalSize == null) { |
| Log.v(TAG, "No preview size match the aspect ratio"); |
| minDiff = Double.MAX_VALUE; |
| for (Size size : sizes) { |
| if (Math.abs(size.height - targetHeight) < minDiff) { |
| optimalSize = size; |
| minDiff = Math.abs(size.height - targetHeight); |
| } |
| } |
| } |
| Log.v(TAG, String.format( |
| "Optimal preview size is %sx%s", |
| optimalSize.width, optimalSize.height)); |
| return optimalSize; |
| } |
| |
| private static boolean isSupported(String value, List<String> supported) { |
| return supported == null ? false : supported.indexOf(value) >= 0; |
| } |
| |
| private void setCameraParameters() { |
| mParameters = mCameraDevice.getParameters(); |
| |
| // 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); |
| } |
| |
| // 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); |
| } |
| |
| // Set the preview frame aspect ratio according to the picture size. |
| Size size = mParameters.getPictureSize(); |
| PreviewFrameLayout frameLayout = |
| (PreviewFrameLayout) findViewById(R.id.frame_layout); |
| frameLayout.setAspectRatio((double) size.width / size.height); |
| |
| // Set a preview size that is closest to the viewfinder height and has |
| // the right aspect ratio. |
| List<Size> sizes = mParameters.getSupportedPreviewSizes(); |
| Size optimalSize = getOptimalPreviewSize( |
| sizes, (double) size.width / size.height); |
| if (optimalSize != null) { |
| mParameters.setPreviewSize(optimalSize.width, optimalSize.height); |
| } |
| |
| // Set JPEG quality. |
| String jpegQuality = mPreferences.getString( |
| CameraSettings.KEY_JPEG_QUALITY, |
| getString(R.string.pref_camera_jpegquality_default)); |
| mParameters.setJpegQuality(Integer.parseInt(jpegQuality)); |
| |
| // Set zoom. |
| if (mParameters.isZoomSupported()) { |
| mParameters.setZoom(mZoomValue); |
| } |
| |
| // For the following settings, we need to check if the settings are |
| // still supported by latest driver, if not, ignore the settings. |
| |
| // Set color effect parameter. |
| String colorEffect = mPreferences.getString( |
| CameraSettings.KEY_COLOR_EFFECT, |
| getString(R.string.pref_camera_coloreffect_default)); |
| if (isSupported(colorEffect, mParameters.getSupportedColorEffects())) { |
| mParameters.setColorEffect(colorEffect); |
| } |
| |
| // Set scene mode. |
| String sceneMode = mPreferences.getString( |
| CameraSettings.KEY_SCENE_MODE, |
| getString(R.string.pref_camera_scenemode_default)); |
| if (isSupported(sceneMode, mParameters.getSupportedSceneModes())) { |
| mParameters.setSceneMode(sceneMode); |
| } else { |
| sceneMode = mParameters.getSceneMode(); |
| if (sceneMode == null) { |
| sceneMode = Parameters.SCENE_MODE_AUTO; |
| } |
| } |
| |
| // If scene mode is set, we cannot set flash mode, white balance, and |
| // focus mode, instead, we read it from driver |
| String flashMode; |
| String whiteBalance; |
| |
| if (!Parameters.SCENE_MODE_AUTO.equals(sceneMode)) { |
| mCameraDevice.setParameters(mParameters); |
| |
| // Setting scene mode will change the settings of flash mode, white |
| // balance, and focus mode. So read back here, so that we know |
| // what's the settings |
| mParameters = mCameraDevice.getParameters(); |
| flashMode = mParameters.getFlashMode(); |
| whiteBalance = mParameters.getWhiteBalance(); |
| mFocusMode = mParameters.getFocusMode(); |
| if (mSettings != null) { |
| mSettings.overrideSettings( |
| CameraSettings.KEY_FLASH_MODE, flashMode); |
| mSettings.overrideSettings( |
| CameraSettings.KEY_WHITE_BALANCE, whiteBalance); |
| mSettings.overrideSettings( |
| CameraSettings.KEY_FOCUS_MODE, mFocusMode); |
| } |
| } else { |
| if (mSettings != null) { |
| mSettings.overrideSettings(CameraSettings.KEY_FLASH_MODE, null); |
| mSettings.overrideSettings(CameraSettings.KEY_FOCUS_MODE, null); |
| mSettings.overrideSettings( |
| CameraSettings.KEY_WHITE_BALANCE, null); |
| } |
| |
| // Set flash mode. |
| 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 = Parameters.FLASH_MODE_OFF; |
| } |
| } |
| |
| // Set white balance parameter. |
| 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. |
| mFocusMode = mPreferences.getString( |
| CameraSettings.KEY_FOCUS_MODE, |
| getString(R.string.pref_camera_focusmode_default)); |
| if (isSupported(mFocusMode, mParameters.getSupportedFocusModes())) { |
| mParameters.setFocusMode(mFocusMode); |
| } else { |
| mFocusMode = mParameters.getFocusMode(); |
| if (mFocusMode == null) { |
| mFocusMode = Parameters.FOCUS_MODE_AUTO; |
| } |
| } |
| |
| mCameraDevice.setParameters(mParameters); |
| } |
| |
| // We post the runner because this function can be called from |
| // non-UI thread (i.e., startPreviewThread). |
| final String finalWhiteBalance = whiteBalance; |
| final String finalFlashMode = flashMode; |
| final String finalSceneMode = |
| Parameters.SCENE_MODE_AUTO.equals(sceneMode) |
| ? SCENE_MODE_OFF |
| : SCENE_MODE_ON; |
| |
| mHandler.post(new Runnable() { |
| public void run() { |
| mFocusIndicator.setMode(mFocusMode); |
| mWhitebalanceIndicator.setMode(finalWhiteBalance); |
| mSceneModeIndicator.setMode(finalSceneMode); |
| mFlashIndicator.setMode(finalFlashMode); |
| } |
| }); |
| } |
| |
| private void gotoGallery() { |
| MenuHelper.gotoCameraImageGallery(this); |
| } |
| |
| private void viewLastImage() { |
| if (mThumbController.isUriValid()) { |
| Uri targetUri = mThumbController.getUri(); |
| targetUri = targetUri.buildUpon().appendQueryParameter( |
| "bucketId", ImageManager.CAMERA_IMAGE_BUCKET_ID).build(); |
| Intent intent = new Intent(this, ReviewImage.class); |
| intent.setData(targetUri); |
| intent.putExtra(MediaStore.EXTRA_FULL_SCREEN, true); |
| intent.putExtra(MediaStore.EXTRA_SHOW_ACTION_ICONS, true); |
| intent.putExtra("com.android.camera.ReviewMode", true); |
| try { |
| startActivity(intent); |
| } catch (ActivityNotFoundException ex) { |
| Log.e(TAG, "review image fail", ex); |
| } |
| } else { |
| Log.e(TAG, "Can't view last image."); |
| } |
| } |
| |
| private void startReceivingLocationUpdates() { |
| if (mLocationManager != null) { |
| try { |
| mLocationManager.requestLocationUpdates( |
| LocationManager.NETWORK_PROVIDER, |
| 1000, |
| 0F, |
| mLocationListeners[1]); |
| } catch (java.lang.SecurityException ex) { |
| Log.i(TAG, "fail to request location update, ignore", ex); |
| } catch (IllegalArgumentException ex) { |
| Log.d(TAG, "provider does not exist " + ex.getMessage()); |
| } |
| try { |
| mLocationManager.requestLocationUpdates( |
| LocationManager.GPS_PROVIDER, |
| 1000, |
| 0F, |
| mLocationListeners[0]); |
| } catch (java.lang.SecurityException ex) { |
| Log.i(TAG, "fail to request location update, ignore", ex); |
| } catch (IllegalArgumentException ex) { |
| Log.d(TAG, "provider does not exist " + ex.getMessage()); |
| } |
| } |
| } |
| |
| private void stopReceivingLocationUpdates() { |
| if (mLocationManager != null) { |
| for (int i = 0; i < mLocationListeners.length; i++) { |
| try { |
| mLocationManager.removeUpdates(mLocationListeners[i]); |
| } catch (Exception ex) { |
| Log.i(TAG, "fail to remove location listners, ignore", ex); |
| } |
| } |
| } |
| } |
| |
| private Location getCurrentLocation() { |
| // go in best to worst order |
| for (int i = 0; i < mLocationListeners.length; i++) { |
| Location l = mLocationListeners[i].current(); |
| if (l != null) return l; |
| } |
| return null; |
| } |
| |
| private boolean isCameraIdle() { |
| return mStatus == IDLE && mFocusState == FOCUS_NOT_STARTED; |
| } |
| |
| 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) { |
| findViewById(R.id.shutter_button).setVisibility(View.INVISIBLE); |
| int[] pickIds = {R.id.btn_retake, R.id.btn_done}; |
| for (int id : pickIds) { |
| View button = findViewById(id); |
| ((View) button.getParent()).setVisibility(View.VISIBLE); |
| } |
| } |
| } |
| |
| private void hidePostCaptureAlert() { |
| if (mIsImageCaptureIntent) { |
| findViewById(R.id.shutter_button).setVisibility(View.VISIBLE); |
| int[] pickIds = {R.id.btn_retake, R.id.btn_done}; |
| for (int id : pickIds) { |
| View button = findViewById(id); |
| ((View) button.getParent()).setVisibility(View.GONE); |
| } |
| } |
| } |
| |
| private int calculatePicturesRemaining() { |
| mPicturesRemaining = MenuHelper.calculatePicturesRemaining(); |
| return mPicturesRemaining; |
| } |
| |
| @Override |
| public boolean onPrepareOptionsMenu(Menu menu) { |
| super.onPrepareOptionsMenu(menu); |
| // Only show the menu when camera is idle. |
| for (int i = 0; i < menu.size(); i++) { |
| menu.getItem(i).setVisible(isCameraIdle()); |
| } |
| |
| return true; |
| } |
| |
| @Override |
| public boolean onCreateOptionsMenu(Menu menu) { |
| super.onCreateOptionsMenu(menu); |
| |
| if (mIsImageCaptureIntent) { |
| // No options menu for attach mode. |
| return false; |
| } else { |
| addBaseMenuItems(menu); |
| } |
| return true; |
| } |
| |
| private void addBaseMenuItems(Menu menu) { |
| MenuItem gallery = menu.add(Menu.NONE, Menu.NONE, |
| MenuHelper.POSITION_GOTO_GALLERY, |
| R.string.camera_gallery_photos_text) |
| .setOnMenuItemClickListener(new OnMenuItemClickListener() { |
| public boolean onMenuItemClick(MenuItem item) { |
| gotoGallery(); |
| return true; |
| } |
| }); |
| gallery.setIcon(android.R.drawable.ic_menu_gallery); |
| mGalleryItems.add(gallery); |
| |
| MenuItem item = menu.add(Menu.NONE, Menu.NONE, |
| MenuHelper.POSITION_CAMERA_SETTING, R.string.settings) |
| .setOnMenuItemClickListener(new OnMenuItemClickListener() { |
| public boolean onMenuItemClick(MenuItem item) { |
| showOnScreenSettings(); |
| return true; |
| } |
| }); |
| item.setIcon(android.R.drawable.ic_menu_preferences); |
| } |
| |
| public boolean onSwitchChanged(Switcher source, boolean onOff) { |
| if (onOff == SWITCH_VIDEO) { |
| if (!isCameraIdle()) return false; |
| MenuHelper.gotoVideoMode(this); |
| finish(); |
| } |
| return true; |
| } |
| |
| public void onSharedPreferenceChanged( |
| SharedPreferences preferences, String key) { |
| // ignore the events after "onPause()" |
| if (mPausing) return; |
| |
| if (CameraSettings.KEY_RECORD_LOCATION.equals(key)) { |
| mRecordLocation = preferences.getBoolean(key, false); |
| if (mRecordLocation) { |
| startReceivingLocationUpdates(); |
| } else { |
| stopReceivingLocationUpdates(); |
| } |
| } else { |
| // All preferences except RECORD_LOCATION are camera parameters. |
| // Call setCameraParameters to take effect now. |
| setCameraParameters(); |
| } |
| } |
| |
| @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); |
| } |
| } |
| |
| class FocusRectangle extends View { |
| |
| @SuppressWarnings("unused") |
| private static final String TAG = "FocusRectangle"; |
| |
| public FocusRectangle(Context context, AttributeSet attrs) { |
| super(context, attrs); |
| } |
| |
| private void setDrawable(int resid) { |
| setBackgroundDrawable(getResources().getDrawable(resid)); |
| } |
| |
| public void showStart() { |
| setDrawable(R.drawable.focus_focusing); |
| } |
| |
| public void showSuccess() { |
| setDrawable(R.drawable.focus_focused); |
| } |
| |
| public void showFail() { |
| setDrawable(R.drawable.focus_focus_failed); |
| } |
| |
| public void clear() { |
| setBackgroundDrawable(null); |
| } |
| } |
