android.view.TextureView#SurfaceTextureListener ( )源码实例Demo

@Override
public void openCamera(String cameraId, final CameraOpenListener<String, TextureView.SurfaceTextureListener> cameraOpenListener) {
    this.currentCameraId = cameraId;
    this.cameraOpenListener = cameraOpenListener;
    backgroundHandler.post(new Runnable() {
        @Override
        public void run() {
            if (context == null || configurationProvider == null) {
                if (cameraOpenListener != null) {
                    uiHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            cameraOpenListener.onCameraOpenError();
                        }
                    });
                }
                return;
            }
            prepareCameraOutputs();
            try {
                manager.openCamera(currentCameraId, stateCallback, backgroundHandler);
            } catch (Exception e) {
                if (cameraOpenListener != null) {
                    uiHandler.post(new Runnable() {
                        @Override
                        public void run() {
                            cameraOpenListener.onCameraOpenError();
                        }
                    });
                }
            }
        }
    });
}
 

public static void waitForNUpdates(final TextureView textureView, int count) {
    TextureView.SurfaceTextureListener previousListener = textureView.getSurfaceTextureListener();
    final TextureViewAsserter textureViewAsserter = new TextureViewAsserter(previousListener);
    textureView.setSurfaceTextureListener(textureViewAsserter);
    TestUtils.synchronous().latchCount(count).timeout(15).run(new TestUtils.SynchronousBlock() {
        @Override
        public void run(final CountDownLatch latch) {
            textureViewAsserter.waitForUpdates(latch);
        }
    });
    textureView.setSurfaceTextureListener(previousListener);
}
 

public void setupSurfaceTexureListener() {
    if (mSurfaceTextureListener != null)
        return;
    mSurfaceTextureListener = new TextureView.SurfaceTextureListener() {
        @Override
        public void onSurfaceTextureAvailable(SurfaceTexture surfaceTexture,
                                              int width, int height) {
            Log.d(TAG, "onSurfaceTextureAvailable() about to open the camera with width,height "
                    + String.valueOf(width) + "," + String.valueOf(height));
            mCamera.openCamera(width, height);
        }

        @Override
        public void onSurfaceTextureSizeChanged(SurfaceTexture surfaceTexture,
                                                int width, int height) {
            Log.d(TAG, "onSurfaceTextureSizeChanged() width width,height "
                    + String.valueOf(width) + "," + String.valueOf(height));
            mCamera.configureTransform(width, height);
        }

        @Override
        public boolean onSurfaceTextureDestroyed(SurfaceTexture surfaceTexture) {
            Log.d(TAG, "onSurfaceTextureDestroyed() ");
            return true;
        }

        @Override
        public void onSurfaceTextureUpdated(SurfaceTexture surfaceTexture) {
            Log.d(TAG, "onSurfaceTextureUpdated() ");
        }

    };
}
 

public void setSurfaceTextureListener(TextureView.SurfaceTextureListener listener)
{
    mSurfaceTextureListener = listener;
}
 

public InnerSurfaceTextureListener(TextureView.SurfaceTextureListener surfaceTextureListener){
    this.surfaceTextureListener = surfaceTextureListener;
}
 

@Override
public void onCameraOpened(String openedCameraId, Size previewSize, TextureView.SurfaceTextureListener surfaceTextureListener) {
    mCameraView.updateUiForMediaAction(CameraConfig.MEDIA_ACTION_UNSPECIFIED);
    mCameraView.updateCameraPreview(previewSize, new AutoFitTextureView(mContext, surfaceTextureListener));
    mCameraView.updateCameraSwitcher(mCamera2Manager.getNumberOfCameras());
}
 

@Override
public void onCameraOpened(String openedCameraId, Size previewSize, TextureView.SurfaceTextureListener surfaceTextureListener) {
    cameraView.updateUiForMediaAction(Configuration.MEDIA_ACTION_UNSPECIFIED);
    cameraView.updateCameraPreview(previewSize, new AutoFitTextureView(context, surfaceTextureListener));
    cameraView.updateCameraSwitcher(camera2Manager.getNumberOfCameras());
}
 

public AutoFitTextureView(Context context, TextureView.SurfaceTextureListener surfaceTextureListener) {
    super(context, null);
    setSurfaceTextureListener(surfaceTextureListener);
}
 

@Override
public void onCameraOpened(String openedCameraId, Size previewSize, TextureView.SurfaceTextureListener surfaceTextureListener) {
    cameraView.updateUiForMediaAction(CameraConfiguration.MEDIA_ACTION_BOTH);
    cameraView.updateCameraPreview(previewSize, new AutoFitTextureView(cameraView.getActivity(), surfaceTextureListener));
    cameraView.updateCameraSwitcher(camera2Manager.getNumberOfCameras());
}
 

public AutoFitTextureView(Context context, TextureView.SurfaceTextureListener surfaceTextureListener) {
    super(context, null);
    setSurfaceTextureListener(surfaceTextureListener);
}
 

public TextureViewAsserter(final TextureView.SurfaceTextureListener surfaceTextureListener) {
    mListener = surfaceTextureListener;
}
 

public static Void surfaceTextureListener(TextureView.SurfaceTextureListener arg) {
  return BaseDSL.attr("surfaceTextureListener", arg);
}
 

public static Void surfaceTextureListener(TextureView.SurfaceTextureListener arg) {
  return BaseDSL.attr("surfaceTextureListener", arg);
}