Comment ajuster la vidéo dans Live wallpaper, par recadrage et en ajustant à la largeur / hauteur?

Vous pouvez y parvenir avec un TextureView. (surfaceView ne fonctionnera pas non plus). J’ai trouvé du code qui vous aidera à atteindre cet objective.
Dans cette démo, vous pouvez recadrer la vidéo en trois types: centre, haut et bas .

TextureVideoView.java

 public class TextureVideoView extends TextureView implements TextureView.SurfaceTextureListener { // Indicate if logging is on public static final boolean LOG_ON = true; // Log tag private static final Ssortingng TAG = TextureVideoView.class.getName(); private MediaPlayer mMediaPlayer; private float mVideoHeight; private float mVideoWidth; private boolean mIsDataSourceSet; private boolean mIsViewAvailable; private boolean mIsVideoPrepared; private boolean mIsPlayCalled; private ScaleType mScaleType; private State mState; public enum ScaleType { CENTER_CROP, TOP, BOTTOM } public enum State { UNINITIALIZED, PLAY, STOP, PAUSE, END } public TextureVideoView(Context context) { super(context); initView(); } public TextureVideoView(Context context, AtsortingbuteSet attrs) { super(context, attrs); initView(); } public TextureVideoView(Context context, AtsortingbuteSet attrs, int defStyle) { super(context, attrs, defStyle); initView(); } private void initView() { initPlayer(); setScaleType(ScaleType.CENTER_CROP); setSurfaceTextureListener(this); } public void setScaleType(ScaleType scaleType) { mScaleType = scaleType; } private void updateTextureViewSize() { float viewWidth = getWidth(); float viewHeight = getHeight(); float scaleX = 1.0f; float scaleY = 1.0f; if (mVideoWidth > viewWidth && mVideoHeight > viewHeight) { scaleX = mVideoWidth / viewWidth; scaleY = mVideoHeight / viewHeight; } else if (mVideoWidth < viewWidth && mVideoHeight < viewHeight) { scaleY = viewWidth / mVideoWidth; scaleX = viewHeight / mVideoHeight; } else if (viewWidth > mVideoWidth) { scaleY = (viewWidth / mVideoWidth) / (viewHeight / mVideoHeight); } else if (viewHeight > mVideoHeight) { scaleX = (viewHeight / mVideoHeight) / (viewWidth / mVideoWidth); } // Calculate pivot points, in our case crop from center int pivotPointX; int pivotPointY; switch (mScaleType) { case TOP: pivotPointX = 0; pivotPointY = 0; break; case BOTTOM: pivotPointX = (int) (viewWidth); pivotPointY = (int) (viewHeight); break; case CENTER_CROP: pivotPointX = (int) (viewWidth / 2); pivotPointY = (int) (viewHeight / 2); break; default: pivotPointX = (int) (viewWidth / 2); pivotPointY = (int) (viewHeight / 2); break; } Masortingx masortingx = new Masortingx(); masortingx.setScale(scaleX, scaleY, pivotPointX, pivotPointY); setTransform(masortingx); } private void initPlayer() { if (mMediaPlayer == null) { mMediaPlayer = new MediaPlayer(); } else { mMediaPlayer.reset(); } mIsVideoPrepared = false; mIsPlayCalled = false; mState = State.UNINITIALIZED; } /** * @see MediaPlayer#setDataSource(Ssortingng) */ public void setDataSource(Ssortingng path) { initPlayer(); try { mMediaPlayer.setDataSource(path); mIsDataSourceSet = true; prepare(); } catch (IOException e) { Log.d(TAG, e.getMessage()); } } /** * @see MediaPlayer#setDataSource(Context, Uri) */ public void setDataSource(Context context, Uri uri) { initPlayer(); try { mMediaPlayer.setDataSource(context, uri); mIsDataSourceSet = true; prepare(); } catch (IOException e) { Log.d(TAG, e.getMessage()); } } /** * @see MediaPlayer#setDataSource(java.io.FileDescriptor) */ public void setDataSource(AssetFileDescriptor afd) { initPlayer(); try { long startOffset = afd.getStartOffset(); long length = afd.getLength(); mMediaPlayer.setDataSource(afd.getFileDescriptor(), startOffset, length); mIsDataSourceSet = true; prepare(); } catch (IOException e) { Log.d(TAG, e.getMessage()); } } private void prepare() { try { mMediaPlayer.setOnVideoSizeChangedListener( new MediaPlayer.OnVideoSizeChangedListener() { @Override public void onVideoSizeChanged(MediaPlayer mp, int width, int height) { mVideoWidth = width; mVideoHeight = height; updateTextureViewSize(); } } ); mMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() { @Override public void onCompletion(MediaPlayer mp) { mState = State.END; log("Video has ended."); if (mListener != null) { mListener.onVideoEnd(); } } }); // don't forget to call MediaPlayer.prepareAsync() method when you use constructor for // creating MediaPlayer mMediaPlayer.prepareAsync(); // Play video when the media source is ready for playback. mMediaPlayer.setOnPreparedListener(new MediaPlayer.OnPreparedListener() { @Override public void onPrepared(MediaPlayer mediaPlayer) { mIsVideoPrepared = true; if (mIsPlayCalled && mIsViewAvailable) { log("Player is prepared and play() was called."); play(); } if (mListener != null) { mListener.onVideoPrepared(); } } }); } catch (IllegalArgumentException e) { Log.d(TAG, e.getMessage()); } catch (SecurityException e) { Log.d(TAG, e.getMessage()); } catch (IllegalStateException e) { Log.d(TAG, e.toSsortingng()); } } /** * Play or resume video. Video will be played as soon as view is available and media player is * prepared. * * If video is stopped or ended and play() method was called, video will start over. */ public void play() { if (!mIsDataSourceSet) { log("play() was called but data source was not set."); return; } mIsPlayCalled = true; if (!mIsVideoPrepared) { log("play() was called but video is not prepared yet, waiting."); return; } if (!mIsViewAvailable) { log("play() was called but view is not available yet, waiting."); return; } if (mState == State.PLAY) { log("play() was called but video is already playing."); return; } if (mState == State.PAUSE) { log("play() was called but video is paused, resuming."); mState = State.PLAY; mMediaPlayer.start(); return; } if (mState == State.END || mState == State.STOP) { log("play() was called but video already ended, starting over."); mState = State.PLAY; mMediaPlayer.seekTo(0); mMediaPlayer.start(); return; } mState = State.PLAY; mMediaPlayer.start(); } /** * Pause video. If video is already paused, stopped or ended nothing will happen. */ public void pause() { if (mState == State.PAUSE) { log("pause() was called but video already paused."); return; } if (mState == State.STOP) { log("pause() was called but video already stopped."); return; } if (mState == State.END) { log("pause() was called but video already ended."); return; } mState = State.PAUSE; if (mMediaPlayer.isPlaying()) { mMediaPlayer.pause(); } } /** * Stop video (pause and seek to beginning). If video is already stopped or ended nothing will * happen. */ public void stop() { if (mState == State.STOP) { log("stop() was called but video already stopped."); return; } if (mState == State.END) { log("stop() was called but video already ended."); return; } mState = State.STOP; if (mMediaPlayer.isPlaying()) { mMediaPlayer.pause(); mMediaPlayer.seekTo(0); } } /** * @see MediaPlayer#setLooping(boolean) */ public void setLooping(boolean looping) { mMediaPlayer.setLooping(looping); } /** * @see MediaPlayer#seekTo(int) */ public void seekTo(int milliseconds) { mMediaPlayer.seekTo(milliseconds); } /** * @see MediaPlayer#getDuration() */ public int getDuration() { return mMediaPlayer.getDuration(); } static void log(Ssortingng message) { if (LOG_ON) { Log.d(TAG, message); } } private MediaPlayerListener mListener; /** * Listener sortinggger 'onVideoPrepared' and `onVideoEnd` events */ public void setListener(MediaPlayerListener listener) { mListener = listener; } public interface MediaPlayerListener { public void onVideoPrepared(); public void onVideoEnd(); } @Override public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture, int width, int height) { Surface surface = new Surface(surfaceTexture); mMediaPlayer.setSurface(surface); mIsViewAvailable = true; if (mIsDataSourceSet && mIsPlayCalled && mIsVideoPrepared) { log("View is available and play() was called."); play(); } } @Override public void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) { } @Override public boolean onSurfaceTextureDestroyed(SurfaceTexture surface) { return false; } @Override public void onSurfaceTextureUpdated(SurfaceTexture surface) { } } 

Après cela, utilisez cette classe comme le code ci-dessous dans MainActivity.java

 public class MainActivity extends AppCompatActivity implements View.OnClickListener, ActionBar.OnNavigationListener { // Video file url private static final Ssortingng FILE_URL = "http://techslides.com/demos/sample-videos/small.mp4"; private TextureVideoView mTextureVideoView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); initView(); initActionBar(); if (!isWIFIOn(getBaseContext())) { Toast.makeText(getBaseContext(), "You need internet connection to stream video", Toast.LENGTH_LONG).show(); } } private void initActionBar() { ActionBar actionBar = getSupportActionBar(); actionBar.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST); actionBar.setDisplayShowTitleEnabled(false); SpinnerAdapter mSpinnerAdapter = ArrayAdapter.createFromResource(this, R.array.action_list, android.R.layout.simple_spinner_dropdown_item); actionBar.setListNavigationCallbacks(mSpinnerAdapter, this); } private void initView() { mTextureVideoView = (TextureVideoView) findViewById(R.id.cropTextureView); findViewById(R.id.btnPlay).setOnClickListener(this); findViewById(R.id.btnPause).setOnClickListener(this); findViewById(R.id.btnStop).setOnClickListener(this); } @Override public void onClick(View v) { switch (v.getId()) { case R.id.btnPlay: mTextureVideoView.play(); break; case R.id.btnPause: mTextureVideoView.pause(); break; case R.id.btnStop: mTextureVideoView.stop(); break; } } final int indexCropCenter = 0; final int indexCropTop = 1; final int indexCropBottom = 2; @Override public boolean onNavigationItemSelected(int itemPosition, long itemId) { switch (itemPosition) { case indexCropCenter: mTextureVideoView.stop(); mTextureVideoView.setScaleType(TextureVideoView.ScaleType.CENTER_CROP); mTextureVideoView.setDataSource(FILE_URL); mTextureVideoView.play(); break; case indexCropTop: mTextureVideoView.stop(); mTextureVideoView.setScaleType(TextureVideoView.ScaleType.TOP); mTextureVideoView.setDataSource(FILE_URL); mTextureVideoView.play(); break; case indexCropBottom: mTextureVideoView.stop(); mTextureVideoView.setScaleType(TextureVideoView.ScaleType.BOTTOM); mTextureVideoView.setDataSource(FILE_URL); mTextureVideoView.play(); break; } return true; } public static boolean isWIFIOn(Context context) { ConnectivityManager connMgr = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo networkInfo = connMgr.getNetworkInfo(ConnectivityManager.TYPE_WIFI); return (networkInfo != null && networkInfo.isConnected()); } } 

et layout activity_main.xml fichier qui est ci-dessous

La sortie du code pour la culture centrale ressemble à

Vous pouvez utiliser Glide pour GIF et le chargement d’images et ses options de redimensionnement comme vous le souhaitez. Basé sur le document https://bumptech.github.io/glide/doc/targets.html#sizes-and-dimensions et https://futurestud.io/tutorials/glide-image-resizing-scaling this.

Glide v4 nécessite Android Ice Cream Sandwich (API niveau 14) ou supérieur.

Comme :

 public static void loadCircularImageGlide(Ssortingng imagePath, ImageView view) { Glide.with(view.getContext()) .load(imagePath) .asGif() .override(600, 200) // resizes the image to these dimensions (in pixel). resize does not respect aspect ratio .error(R.drawable.create_timeline_placeholder) .fitCenter() // scaling options .transform(new CircularTransformation(view.getContext())) // Even you can Give image tranformation too .into(view); }