| /* |
| * Copyright (C) 2013 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 android.support.v7.app; |
| |
| import static android.widget.SeekBar.OnSeekBarChangeListener; |
| |
| import android.content.ContentResolver; |
| import android.content.Context; |
| import android.content.res.Configuration; |
| import android.content.res.Resources; |
| import android.content.res.TypedArray; |
| import android.graphics.Bitmap; |
| import android.graphics.BitmapFactory; |
| import android.graphics.drawable.Drawable; |
| import android.net.Uri; |
| import android.os.AsyncTask; |
| import android.os.Bundle; |
| import android.os.RemoteException; |
| import android.support.v4.media.MediaDescriptionCompat; |
| import android.support.v4.media.MediaMetadataCompat; |
| import android.support.v4.media.session.MediaControllerCompat; |
| import android.support.v4.media.session.MediaSessionCompat; |
| import android.support.v4.media.session.PlaybackStateCompat; |
| import android.support.v7.graphics.Palette; |
| import android.support.v7.media.MediaRouteSelector; |
| import android.support.v7.media.MediaRouter; |
| import android.support.v7.mediarouter.R; |
| import android.text.TextUtils; |
| import android.util.Log; |
| import android.view.KeyEvent; |
| import android.view.LayoutInflater; |
| import android.view.View; |
| import android.view.ViewGroup; |
| import android.widget.ArrayAdapter; |
| import android.widget.Button; |
| import android.widget.FrameLayout; |
| import android.widget.ImageButton; |
| import android.widget.ImageView; |
| import android.widget.LinearLayout; |
| import android.widget.ListView; |
| import android.widget.SeekBar; |
| import android.widget.TextView; |
| |
| import java.io.BufferedInputStream; |
| import java.io.IOException; |
| import java.util.List; |
| |
| /** |
| * This class implements the route controller dialog for {@link MediaRouter}. |
| * <p> |
| * This dialog allows the user to control or disconnect from the currently selected route. |
| * </p> |
| * |
| * @see MediaRouteButton |
| * @see MediaRouteActionProvider |
| */ |
| public class MediaRouteControllerDialog extends AlertDialog { |
| private static final String TAG = "MediaRouteControllerDialog"; |
| |
| // STOPSHIP: Remove the flag when the group volume control implementation completes. |
| private static final boolean USE_GROUP = false; |
| |
| // Time to wait before updating the volume when the user lets go of the seek bar |
| // to allow the route provider time to propagate the change and publish a new |
| // route descriptor. |
| private static final int VOLUME_UPDATE_DELAY_MILLIS = 250; |
| |
| private final MediaRouter mRouter; |
| private final MediaRouterCallback mCallback; |
| private final MediaRouter.RouteInfo mRoute; |
| |
| private boolean mCreated; |
| private boolean mAttachedToWindow; |
| private int mOrientation; |
| private int mDialogWidthPortrait; |
| private int mDialogWidthLandscape; |
| |
| private View mControlView; |
| |
| private Button mDisconnectButton; |
| private Button mStopCastingButton; |
| private ImageButton mPlayPauseButton; |
| private ImageButton mCloseButton; |
| private ImageButton mGroupExpandCollapseButton; |
| |
| private ImageView mArtView; |
| private TextView mTitleView; |
| private TextView mSubtitleView; |
| private TextView mRouteNameView; |
| |
| private boolean mVolumeControlEnabled = true; |
| private LinearLayout mVolumeLayout; |
| private ListView mVolumeGroupList; |
| private SeekBar mVolumeSlider; |
| private boolean mVolumeSliderTouched; |
| |
| private MediaControllerCompat mMediaController; |
| private MediaControllerCallback mControllerCallback; |
| private PlaybackStateCompat mState; |
| private MediaDescriptionCompat mDescription; |
| |
| private FetchArtTask mFetchArtTask; |
| |
| public MediaRouteControllerDialog(Context context) { |
| this(context, 0); |
| } |
| |
| public MediaRouteControllerDialog(Context context, int theme) { |
| super(MediaRouterThemeHelper.createThemedContext(context), theme); |
| context = getContext(); |
| |
| mControllerCallback = new MediaControllerCallback(); |
| mRouter = MediaRouter.getInstance(context); |
| mCallback = new MediaRouterCallback(); |
| mRoute = mRouter.getSelectedRoute(); |
| setMediaSession(mRouter.getMediaSessionToken()); |
| } |
| |
| /** |
| * Gets the route that this dialog is controlling. |
| */ |
| public MediaRouter.RouteInfo getRoute() { |
| return mRoute; |
| } |
| |
| private MediaRouter.RouteGroup getGroup() { |
| if (mRoute instanceof MediaRouter.RouteGroup) { |
| return (MediaRouter.RouteGroup) mRoute; |
| } |
| return null; |
| } |
| |
| /** |
| * Provides the subclass an opportunity to create a view that will |
| * be included within the body of the dialog to offer additional media controls |
| * for the currently playing content. |
| * |
| * @param savedInstanceState The dialog's saved instance state. |
| * @return The media control view, or null if none. |
| */ |
| public View onCreateMediaControlView(Bundle savedInstanceState) { |
| return null; |
| } |
| |
| /** |
| * Gets the media control view that was created by {@link #onCreateMediaControlView(Bundle)}. |
| * |
| * @return The media control view, or null if none. |
| */ |
| public View getMediaControlView() { |
| return mControlView; |
| } |
| |
| /** |
| * Sets whether to enable the volume slider and volume control using the volume keys |
| * when the route supports it. |
| * <p> |
| * The default value is true. |
| * </p> |
| */ |
| public void setVolumeControlEnabled(boolean enable) { |
| if (mVolumeControlEnabled != enable) { |
| mVolumeControlEnabled = enable; |
| if (mCreated) { |
| updateVolume(); |
| } |
| } |
| } |
| |
| /** |
| * Returns whether to enable the volume slider and volume control using the volume keys |
| * when the route supports it. |
| */ |
| public boolean isVolumeControlEnabled() { |
| return mVolumeControlEnabled; |
| } |
| |
| /** |
| * Set the session to use for metadata and transport controls. The dialog |
| * will listen to changes on this session and update the UI automatically in |
| * response to changes. |
| * |
| * @param sessionToken The token for the session to use. |
| */ |
| private void setMediaSession(MediaSessionCompat.Token sessionToken) { |
| if (mMediaController != null) { |
| mMediaController.unregisterCallback(mControllerCallback); |
| mMediaController = null; |
| } |
| if (sessionToken == null) { |
| return; |
| } |
| if (!mAttachedToWindow) { |
| return; |
| } |
| try { |
| mMediaController = new MediaControllerCompat(getContext(), sessionToken); |
| } catch (RemoteException e) { |
| Log.e(TAG, "Error creating media controller in setMediaSession.", e); |
| } |
| if (mMediaController != null) { |
| mMediaController.registerCallback(mControllerCallback); |
| } |
| MediaMetadataCompat metadata = mMediaController == null ? null |
| : mMediaController.getMetadata(); |
| mDescription = metadata == null ? null : metadata.getDescription(); |
| mState = mMediaController == null ? null : mMediaController.getPlaybackState(); |
| update(); |
| } |
| |
| /** |
| * Gets the description being used by the default UI. |
| * |
| * @return The current description. |
| */ |
| public MediaSessionCompat.Token getMediaSession() { |
| return mMediaController == null ? null : mMediaController.getSessionToken(); |
| } |
| |
| @Override |
| protected void onCreate(Bundle savedInstanceState) { |
| super.onCreate(savedInstanceState); |
| |
| setContentView(R.layout.mr_controller_material_dialog_b); |
| View decorView = getWindow().getDecorView(); |
| int dialogHorizontalPadding = decorView.getPaddingLeft() + decorView.getPaddingRight(); |
| Resources res = getContext().getResources(); |
| mDialogWidthPortrait = res.getDimensionPixelSize( |
| R.dimen.mr_dialog_content_width_portrait) + dialogHorizontalPadding; |
| mDialogWidthLandscape = res.getDimensionPixelSize( |
| R.dimen.mr_dialog_content_width_landscape) + dialogHorizontalPadding; |
| |
| ClickListener listener = new ClickListener(); |
| |
| mDisconnectButton = (Button) findViewById(R.id.disconnect); |
| mDisconnectButton.setOnClickListener(listener); |
| |
| mStopCastingButton = (Button) findViewById(R.id.stop); |
| mStopCastingButton.setOnClickListener(listener); |
| |
| mCloseButton = (ImageButton) findViewById(R.id.close); |
| mCloseButton.setOnClickListener(listener); |
| |
| mArtView = (ImageView) findViewById(R.id.art); |
| mTitleView = (TextView) findViewById(R.id.title); |
| mSubtitleView = (TextView) findViewById(R.id.subtitle); |
| mPlayPauseButton = (ImageButton) findViewById(R.id.play_pause); |
| mPlayPauseButton.setOnClickListener(listener); |
| mRouteNameView = (TextView) findViewById(R.id.route_name); |
| mVolumeLayout = (LinearLayout)findViewById(R.id.media_route_volume_layout); |
| mVolumeGroupList = (ListView)findViewById(R.id.media_route_volume_group_list); |
| |
| TypedArray styledAttributes = getContext().obtainStyledAttributes(new int[] { |
| R.attr.mediaRouteExpandGroupDrawable, |
| R.attr.mediaRouteCollapseGroupDrawable |
| }); |
| final Drawable expandGroupDrawable = styledAttributes.getDrawable(0); |
| final Drawable collapseGroupDrawable = styledAttributes.getDrawable(1); |
| styledAttributes.recycle(); |
| |
| mGroupExpandCollapseButton = (ImageButton)findViewById( |
| R.id.media_route_group_expand_collapse); |
| mGroupExpandCollapseButton.setOnClickListener(new View.OnClickListener() { |
| private boolean mIsExpanded; |
| |
| @Override |
| public void onClick(View v) { |
| mIsExpanded = !mIsExpanded; |
| if (mIsExpanded) { |
| mGroupExpandCollapseButton.setImageDrawable(collapseGroupDrawable); |
| mVolumeGroupList.setVisibility(View.VISIBLE); |
| mVolumeGroupList.setAdapter( |
| new VolumeGroupAdapter(getContext(), getGroup().getRoutes())); |
| } else { |
| mGroupExpandCollapseButton.setImageDrawable(expandGroupDrawable); |
| mVolumeGroupList.setVisibility(View.GONE); |
| } |
| } |
| }); |
| mVolumeSlider = (SeekBar)findViewById(R.id.media_route_volume_slider); |
| mVolumeSlider.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() { |
| private final Runnable mStopTrackingTouch = new Runnable() { |
| @Override |
| public void run() { |
| if (mVolumeSliderTouched) { |
| mVolumeSliderTouched = false; |
| updateVolume(); |
| } |
| } |
| }; |
| |
| @Override |
| public void onStartTrackingTouch(SeekBar seekBar) { |
| if (mVolumeSliderTouched) { |
| mVolumeSlider.removeCallbacks(mStopTrackingTouch); |
| } else { |
| mVolumeSliderTouched = true; |
| } |
| } |
| |
| @Override |
| public void onStopTrackingTouch(SeekBar seekBar) { |
| // Defer resetting mVolumeSliderTouched to allow the media route provider |
| // a little time to settle into its new state and publish the final |
| // volume update. |
| mVolumeSlider.postDelayed(mStopTrackingTouch, VOLUME_UPDATE_DELAY_MILLIS); |
| } |
| |
| @Override |
| public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { |
| if (fromUser) { |
| mRoute.requestSetVolume(progress); |
| } |
| } |
| }); |
| |
| mCreated = true; |
| if (update()) { |
| mControlView = onCreateMediaControlView(savedInstanceState); |
| FrameLayout controlFrame = |
| (FrameLayout)findViewById(R.id.media_route_control_frame); |
| if (mControlView != null) { |
| controlFrame.findViewById(R.id.default_control_frame).setVisibility(View.GONE); |
| controlFrame.addView(mControlView); |
| } |
| } |
| } |
| |
| /** |
| * Called by {@link MediaRouteControllerDialogFragment} when the device configuration |
| * is changed. |
| */ |
| void onConfigurationChanged(Configuration newConfig) { |
| onOrientationChanged(newConfig.orientation); |
| } |
| |
| private void onOrientationChanged(int orientation) { |
| if (!mAttachedToWindow || mOrientation == orientation) { |
| return; |
| } |
| mOrientation = orientation; |
| getWindow().setLayout( |
| mOrientation == Configuration.ORIENTATION_LANDSCAPE |
| ? mDialogWidthLandscape : mDialogWidthPortrait, |
| ViewGroup.LayoutParams.WRAP_CONTENT); |
| } |
| |
| @Override |
| public void onAttachedToWindow() { |
| super.onAttachedToWindow(); |
| mAttachedToWindow = true; |
| |
| mRouter.addCallback(MediaRouteSelector.EMPTY, mCallback, |
| MediaRouter.CALLBACK_FLAG_UNFILTERED_EVENTS); |
| setMediaSession(mRouter.getMediaSessionToken()); |
| onOrientationChanged(getContext().getResources().getConfiguration().orientation); |
| } |
| |
| @Override |
| public void onDetachedFromWindow() { |
| mRouter.removeCallback(mCallback); |
| setMediaSession(null); |
| mAttachedToWindow = false; |
| super.onDetachedFromWindow(); |
| } |
| |
| @Override |
| public boolean onKeyDown(int keyCode, KeyEvent event) { |
| if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN |
| || keyCode == KeyEvent.KEYCODE_VOLUME_UP) { |
| mRoute.requestUpdateVolume(keyCode == KeyEvent.KEYCODE_VOLUME_DOWN ? -1 : 1); |
| return true; |
| } |
| return super.onKeyDown(keyCode, event); |
| } |
| |
| @Override |
| public boolean onKeyUp(int keyCode, KeyEvent event) { |
| if (keyCode == KeyEvent.KEYCODE_VOLUME_DOWN |
| || keyCode == KeyEvent.KEYCODE_VOLUME_UP) { |
| return true; |
| } |
| return super.onKeyUp(keyCode, event); |
| } |
| |
| private boolean update() { |
| if (!mRoute.isSelected() || mRoute.isDefault()) { |
| dismiss(); |
| return false; |
| } |
| if (!mCreated) { |
| return false; |
| } |
| |
| updateVolume(); |
| |
| mRouteNameView.setText(mRoute.getName()); |
| |
| if (mRoute.canDisconnect()) { |
| mDisconnectButton.setVisibility(View.VISIBLE); |
| } else { |
| mDisconnectButton.setVisibility(View.GONE); |
| } |
| |
| if (mRoute.getSettingsIntent() != null) { |
| mCloseButton.setVisibility(View.VISIBLE); |
| } else { |
| mCloseButton.setVisibility(View.GONE); |
| } |
| |
| if (mControlView == null) { |
| if (mFetchArtTask != null) { |
| mFetchArtTask.cancel(true); |
| } |
| mArtView.setVisibility(View.GONE); |
| mFetchArtTask = new FetchArtTask(); |
| mFetchArtTask.execute(); |
| |
| CharSequence title = mDescription == null ? null : mDescription.getTitle(); |
| boolean hasTitle = !TextUtils.isEmpty(title); |
| |
| CharSequence subtitle = mDescription == null ? null : mDescription.getSubtitle(); |
| boolean hasSubtitle = !TextUtils.isEmpty(subtitle); |
| |
| if (!hasTitle && !hasSubtitle) { |
| mTitleView.setText(R.string.mr_controller_no_info_available); |
| mTitleView.setEnabled(false); |
| mTitleView.setVisibility(View.VISIBLE); |
| mSubtitleView.setVisibility(View.GONE); |
| } else { |
| mTitleView.setText(title); |
| mTitleView.setEnabled(hasTitle); |
| mTitleView.setVisibility(hasTitle ? View.VISIBLE : View.GONE); |
| mSubtitleView.setText(subtitle); |
| mSubtitleView.setVisibility(hasSubtitle ? View.VISIBLE : View.GONE); |
| } |
| if (mState != null) { |
| boolean isPlaying = mState.getState() == PlaybackStateCompat.STATE_BUFFERING |
| || mState.getState() == PlaybackStateCompat.STATE_PLAYING; |
| boolean supportsPlay = (mState.getActions() & (PlaybackStateCompat.ACTION_PLAY |
| | PlaybackStateCompat.ACTION_PLAY_PAUSE)) != 0; |
| boolean supportsPause = (mState.getActions() & (PlaybackStateCompat.ACTION_PAUSE |
| | PlaybackStateCompat.ACTION_PLAY_PAUSE)) != 0; |
| if (isPlaying && supportsPause) { |
| mPlayPauseButton.setVisibility(View.VISIBLE); |
| mPlayPauseButton.setImageResource(MediaRouterThemeHelper.getThemeResource( |
| getContext(), R.attr.mediaRoutePauseDrawable)); |
| mPlayPauseButton.setContentDescription(getContext().getResources() |
| .getText(R.string.mr_controller_pause)); |
| } else if (!isPlaying && supportsPlay) { |
| mPlayPauseButton.setVisibility(View.VISIBLE); |
| mPlayPauseButton.setImageResource(MediaRouterThemeHelper.getThemeResource( |
| getContext(), R.attr.mediaRoutePlayDrawable)); |
| mPlayPauseButton.setContentDescription(getContext().getResources() |
| .getText(R.string.mr_controller_play)); |
| } else { |
| mPlayPauseButton.setVisibility(View.GONE); |
| } |
| } else { |
| mPlayPauseButton.setVisibility(View.GONE); |
| } |
| } |
| return true; |
| } |
| |
| private void updateVolume() { |
| if (!mVolumeSliderTouched) { |
| if (isVolumeControlAvailable()) { |
| mVolumeLayout.setVisibility(View.VISIBLE); |
| mVolumeSlider.setMax(mRoute.getVolumeMax()); |
| mVolumeSlider.setProgress(mRoute.getVolume()); |
| if (USE_GROUP) { |
| mGroupExpandCollapseButton.setVisibility( |
| getGroup() != null ? View.VISIBLE : View.GONE); |
| } |
| } else { |
| mVolumeLayout.setVisibility(View.GONE); |
| } |
| } |
| } |
| |
| private boolean isVolumeControlAvailable() { |
| return mVolumeControlEnabled && mRoute.getVolumeHandling() == |
| MediaRouter.RouteInfo.PLAYBACK_VOLUME_VARIABLE; |
| } |
| |
| private final class MediaRouterCallback extends MediaRouter.Callback { |
| @Override |
| public void onRouteUnselected(MediaRouter router, MediaRouter.RouteInfo route) { |
| update(); |
| } |
| |
| @Override |
| public void onRouteChanged(MediaRouter router, MediaRouter.RouteInfo route) { |
| update(); |
| } |
| |
| @Override |
| public void onRouteVolumeChanged(MediaRouter router, MediaRouter.RouteInfo route) { |
| if (route == mRoute) { |
| updateVolume(); |
| } |
| } |
| } |
| |
| private final class MediaControllerCallback extends MediaControllerCompat.Callback { |
| @Override |
| public void onSessionDestroyed() { |
| if (mMediaController != null) { |
| mMediaController.unregisterCallback(mControllerCallback); |
| mMediaController = null; |
| } |
| } |
| |
| @Override |
| public void onPlaybackStateChanged(PlaybackStateCompat state) { |
| mState = state; |
| update(); |
| } |
| |
| @Override |
| public void onMetadataChanged(MediaMetadataCompat metadata) { |
| mDescription = metadata == null ? null : metadata.getDescription(); |
| update(); |
| } |
| } |
| |
| private final class ClickListener implements View.OnClickListener { |
| @Override |
| public void onClick(View v) { |
| int id = v.getId(); |
| if (id == R.id.stop || id == R.id.disconnect) { |
| if (mRoute.isSelected()) { |
| mRouter.unselect(id == R.id.stop ? |
| MediaRouter.UNSELECT_REASON_STOPPED : |
| MediaRouter.UNSELECT_REASON_DISCONNECTED); |
| } |
| dismiss(); |
| } else if (id == R.id.play_pause) { |
| if (mMediaController != null && mState != null) { |
| if (mState.getState() == PlaybackStateCompat.STATE_PLAYING) { |
| mMediaController.getTransportControls().pause(); |
| } else { |
| mMediaController.getTransportControls().play(); |
| } |
| } |
| } else if (id == R.id.close) { |
| dismiss(); |
| } |
| } |
| } |
| |
| private class VolumeGroupAdapter extends ArrayAdapter<MediaRouter.RouteInfo> { |
| final OnSeekBarChangeListener mOnSeekBarChangeListener = new OnSeekBarChangeListener() { |
| @Override |
| public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) { |
| if (fromUser) { |
| int position = (int) seekBar.getTag(); |
| getGroup().getRouteAt(position).requestSetVolume(progress); |
| } |
| } |
| |
| @Override |
| public void onStartTrackingTouch(SeekBar seekBar) { |
| // TODO: Implement |
| } |
| |
| @Override |
| public void onStopTrackingTouch(SeekBar seekBar) { |
| // TODO: Implement |
| } |
| }; |
| |
| public VolumeGroupAdapter(Context context, List<MediaRouter.RouteInfo> objects) { |
| super(context, 0, objects); |
| } |
| |
| @Override |
| public View getView(final int position, View convertView, ViewGroup parent) { |
| View v = convertView; |
| if (v == null) { |
| v = LayoutInflater.from(getContext()).inflate( |
| R.layout.mr_controller_volume_item, null); |
| } |
| MediaRouter.RouteInfo route = getItem(position); |
| if (route != null) { |
| TextView textView = (TextView) v.findViewById(R.id.media_route_name); |
| textView.setText(route.getName()); |
| |
| SeekBar volumeSlider = (SeekBar) v.findViewById(R.id.media_route_volume_slider); |
| if (route.getVolumeHandling() == MediaRouter.RouteInfo.PLAYBACK_VOLUME_VARIABLE) { |
| volumeSlider.setMax(route.getVolumeMax()); |
| volumeSlider.setProgress(route.getVolume()); |
| volumeSlider.setOnSeekBarChangeListener(mOnSeekBarChangeListener); |
| } else { |
| volumeSlider.setMax(100); |
| volumeSlider.setProgress(100); |
| volumeSlider.setEnabled(false); |
| } |
| volumeSlider.setTag(position); |
| } |
| return v; |
| } |
| } |
| |
| private class FetchArtTask extends AsyncTask<Void, Void, Bitmap> { |
| private int mBackgroundColor; |
| |
| @Override |
| protected Bitmap doInBackground(Void... arg) { |
| Bitmap bitmap = null; |
| if (mDescription == null) { |
| return null; |
| } |
| if (mDescription.getIconBitmap() != null) { |
| bitmap = mDescription.getIconBitmap(); |
| } else if (mDescription.getIconUri() != null) { |
| Uri iconUri = mDescription.getIconUri(); |
| String scheme = iconUri.getScheme(); |
| if (!(ContentResolver.SCHEME_ANDROID_RESOURCE.equals(scheme) |
| || ContentResolver.SCHEME_CONTENT.equals(scheme) |
| || ContentResolver.SCHEME_FILE.equals(scheme))) { |
| Log.w(TAG, "Icon Uri should point to local resources."); |
| return null; |
| } |
| BufferedInputStream stream = null; |
| try { |
| stream = new BufferedInputStream( |
| getContext().getContentResolver().openInputStream(iconUri)); |
| |
| // Query bitmap size. |
| BitmapFactory.Options options = new BitmapFactory.Options(); |
| options.inJustDecodeBounds = true; |
| BitmapFactory.decodeStream(stream, null, options); |
| |
| // Rewind the stream in order to restart bitmap decoding. |
| try { |
| stream.reset(); |
| } catch (IOException e) { |
| // Failed to rewind the stream, try to reopen it. |
| stream.close(); |
| stream = new BufferedInputStream(getContext().getContentResolver() |
| .openInputStream(iconUri)); |
| } |
| |
| // Caculate required size to decode the bitmap and possibly resize it. |
| options.inJustDecodeBounds = false; |
| int reqWidth; |
| int reqHeight; |
| if (options.outWidth >= options.outHeight) { |
| // For landscape image, fit width to dialog width. |
| reqWidth = getWindow().getDecorView().getWidth(); |
| reqHeight = reqWidth * (options.outHeight / options.outWidth); |
| } else { |
| // For portrait image, fit height to 16:9 ratio case's height. |
| reqHeight = getWindow().getDecorView().getWidth() * 9 / 16; |
| reqWidth = reqHeight * (options.outWidth / options.outHeight); |
| } |
| int ratio = Math.max( |
| options.outWidth / reqWidth, options.outHeight / reqHeight); |
| options.inSampleSize = Math.max(1, Integer.highestOneBit(ratio)); |
| if (isCancelled()) { |
| return null; |
| } |
| bitmap = BitmapFactory.decodeStream(stream, null, options); |
| } catch (IOException e){ |
| Log.w(TAG, "Unable to open content: " + iconUri, e); |
| } finally { |
| if (stream != null) { |
| try { |
| stream.close(); |
| } catch (IOException e) { |
| } |
| } |
| } |
| } |
| if (bitmap != null) { |
| if (bitmap.getWidth() < bitmap.getHeight()) { |
| // Portrait image requires background color. |
| mBackgroundColor = |
| new Palette.Builder(bitmap).generate().getDarkVibrantColor(0); |
| } |
| } |
| return bitmap; |
| } |
| |
| @Override |
| protected void onCancelled() { |
| mFetchArtTask = null; |
| } |
| |
| @Override |
| protected void onPostExecute(Bitmap bitmap) { |
| mFetchArtTask = null; |
| mArtView.setImageBitmap(bitmap); |
| if (bitmap != null) { |
| mArtView.setVisibility(View.VISIBLE); |
| if (bitmap.getWidth() < bitmap.getHeight()) { |
| mArtView.setMaxHeight(getWindow().getDecorView().getWidth() * 9 / 16); |
| mArtView.setBackgroundColor(mBackgroundColor); |
| } else { |
| mArtView.setMaxHeight(Integer.MAX_VALUE); |
| } |
| } else { |
| mArtView.setVisibility(View.GONE); |
| } |
| } |
| } |
| } |
