Camera2 实现重力感应四个方向调试相机预览

Camera2API 实现重力感应四个方向调试相机预览

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需求

Camera2 相机预览实现四个重力感应方向预览方向正常

场景

• 实际有个客户需求，用到了四个方向的重力感应，但是之前的工程代码只有两个方向，导致屏幕无法四个方向正常显示
• 相机预览两个重力感应方向已经满足了需求，但是客户重力感应模块、板卡 实际物理装配时候不可能按照要求装配的，不同厂家的磨具不一样导致板卡方向装配不一样。基于这样的实际情况，软件就需要适配四个方向，两个重力感应预览方向就无法满足实际要求了。
• 实际产品案例：监控、HDMIN、车载Camera…

需求实现

setAspectRatio 设置显示长宽

设置显示组件长宽
textureView.setAspectRatio(width, height)

private void setupCamera(int width, int height) {CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);try {for (String cameraId : manager.getCameraIdList()) {...............int orientation = getResources().getConfiguration().orientation;if (orientation == Configuration.ORIENTATION_LANDSCAPE) {Log.d(TAG, "setupCamera: ORIENTATION_LANDSCAPE  " + mPreviewSize.getWidth() + " x " + mPreviewSize.getHeight());textureView.setAspectRatio(1920, 1080);} else {textureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth());Log.d(TAG, "setupCamera:  ORIENTATION_PORT  " + mPreviewSize.getWidth() + " x " + mPreviewSize.getHeight());}break;}} catch (CameraAccessException e) {e.printStackTrace();}}

使用位置：在View 组件流传递过来时候， onSurfaceTextureAvailable 方法中，去设置 setupCamera

 TextureView.SurfaceTextureListener textureListener = new TextureView.SurfaceTextureListener() {@Overridepublic void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {setupCamera(width, height);configureTransform(width, height);openCamera();}@Overridepublic void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {configureTransform(width, height);}@Overridepublic boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {return false;}@Overridepublic void onSurfaceTextureUpdated(SurfaceTexture surface) {}};

postScale postRotate 设置缩放和旋转

比如长宽肯定是1920*1080，根据实际产品长宽进行设置，但是如果是竖屏状态下，还是需要这个图像输出流的比例数出来，那么就必须进行缩放，才能完全显示出来的。

补充下基本知识点：
Matrix的操作，总共分为translate（平移），rotate（旋转），scale（缩放）和skew（倾斜）四种，每一种变换在Android的API里都提供了set, post和pre三种操作方式,除了translate，其他三种操作都可以指定中心点。

set是直接设置Matrix的值，每次set一次，整个Matrix的数组都会变掉，这也就意味着你对同一个矩阵先调用setScale，再调用setTranslate,那么矩阵只会执行Translate的操作，前面的scale操作是无效的。

post是后乘，当前的矩阵乘以参数给出的矩阵。可以连续多次使用post，来完成所需的整个变换。例如，要将一个图片先缩放，再平移则可以通过：

同样的道理，如上面设置显示长宽的后面就需要又缩放和旋转逻辑了， 输出流的地方是不会变的，那么接收的地方就需要根据实际情况如重力感应和物理场景【竖屏-横屏】进行流显示的变化了->缩放、旋转操作

onSurfaceTextureAvailable ->  configureTransform(width, height) -> Configuration config =  getResources().getConfiguration()【根据重力感应方向，计算缩放比例和旋转角度及选择方向了】核心代码如下：
private void configureTransform(int viewWidth, int viewHeight) {if (null == textureView || null == mPreviewSize) {return;}int rotation = getWindowManager().getDefaultDisplay().getRotation();Configuration config =  getResources().getConfiguration();if (config.orientation == Configuration.ORIENTATION_PORTRAIT) {Log.d(TAG, "configureTransform: ORIENTATION_PORTRAIT");if(Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation){isRotation = true;}} else if (config.orientation == Configuration.ORIENTATION_LANDSCAPE) {Log.d(TAG, "configureTransform: ORIENTATION_LANDSCAPE");if(Surface.ROTATION_0 == rotation || Surface.ROTATION_180 == rotation){isRotation = true;}}Log.d(TAG, "configureTransform: isRotation = "+isRotation);if(isRotation){rotation = rotation + 1;if(rotation > 3){rotation = rotation - 3;}}Log.d(TAG," aaaaaaaaaaaa rotation:"+rotation);Matrix matrix = new Matrix();RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);RectF bufferRect = new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth());float centerX = viewRect.centerX();float centerY = viewRect.centerY();if (Surface.ROTATION_90 == rotation) {bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);float scale = Math.max((float) viewHeight / mPreviewSize.getHeight(),(float) viewWidth / mPreviewSize.getWidth());matrix.postScale(scale, scale, centerX, centerY);matrix.postRotate(90 * (rotation - 2), centerX, centerY);Log.d(TAG," 00000000000000  ");}else  if ( Surface.ROTATION_270 == rotation) {bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);float scale = Math.max((float) viewHeight / mPreviewSize.getHeight(),(float) viewWidth / mPreviewSize.getWidth());matrix.postScale(scale, scale, centerX, centerY);matrix.postRotate(270, centerX, centerY);Log.d(TAG," bbbbbbbbbbbbbbbb  ");}  else if (Surface.ROTATION_180 == rotation) {float scale = (float)1080/ 1920;Log.d(TAG, "configureTransform: rizhi xianshi port state  scale:"+scale+"    centerX:"+centerX+"   centerY:"+centerY);matrix.postScale(scale, scale, centerX, centerY);textureView.setRotation(270f);Log.d(TAG, "configureTransform:   "+"    centerX:"+centerX+"   centerY:"+centerY);Log.d(TAG," 111111111111111  ");}else if(Surface.ROTATION_0 == rotation){float scale = (float)1080/ 1920;Log.d(TAG, "configureTransform: rizhi xianshi port state  scale:"+scale+"    centerX:"+centerX+"   centerY:"+centerY);matrix.postScale(scale, scale, centerX, centerY);textureView.setRotation(270f);Log.d(TAG," 222222222222222222  ");}textureView.setTransform(matrix);}

manager.openCamera 打开相机

打开相机就是一个比较常规操作了，如上显示组件 已经准备好，进行了算转和缩放操作，就是显示组件已经设置好了参数，接下来就打开相机，让流数据进来。
打开相机基本代码如下：

public void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {setupCamera(width, height);configureTransform(width, height);openCamera();
}private void openCamera() {CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);int i = 0;try {i = manager.getCameraIdList().length;} catch (CameraAccessException e) {e.printStackTrace();}if (getDevVideoList()) {i = i - 1;}if (i == 2) {mCameraId = "9";} else {mCameraId = "0";}try {if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {Log.d(TAG," has no CAMERA  permission");return;}manager.openCamera(mCameraId, stateCallback, null);} catch (CameraAccessException e) {e.printStackTrace();}}

startPreview

在相机打开操作中，如果相机打开成功，回调地方就需要设置预览了，这个是相机Camera 相关的操作了。 不要和预览组件textureView 搞混淆了。

这里用到的是Camera2 API 实现的

  private void startPreview() {setupImageReader();SurfaceTexture mSurfaceTexture = textureView.getSurfaceTexture();Log.d(TAG, "startPreview:  setDefaultBufferSize ： width:"+mPreviewSize.getWidth()+"  x  "+mPreviewSize.getHeight()+"   shiji xiesi 1920 x 1080");mSurfaceTexture.setDefaultBufferSize(1920, 1080);mPreviewSurface = new Surface(mSurfaceTexture);try {getPreviewRequestBuilder();mCameraDevice.createCaptureSession(Arrays.asList(mPreviewSurface, mImageReader.getSurface()), new CameraCaptureSession.StateCallback() {@Overridepublic void onConfigured(CameraCaptureSession session) {mCaptureSession = session;repeatPreview();}@Overridepublic void onConfigureFailed(CameraCaptureSession session) {}}, null);} catch (CameraAccessException e) {e.printStackTrace();}}

getPreviewRequestBuilder 设置预览参数：

private void getPreviewRequestBuilder() {try {mPreviewRequestBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);} catch (CameraAccessException e) {e.printStackTrace();}mPreviewRequestBuilder.addTarget(mPreviewSurface);MeteringRectangle[] meteringRectangles = mPreviewRequestBuilder.get(CaptureRequest.CONTROL_AF_REGIONS);if (meteringRectangles != null && meteringRectangles.length > 0) {Log.d(TAG, "PreviewRequestBuilder: AF_REGIONS=" + meteringRectangles[0].getRect().toString());}mPreviewRequestBuilder.set(CaptureRequest.CONTROL_MODE, CaptureRequest.CONTROL_MODE_AUTO);mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, CaptureRequest.CONTROL_AF_TRIGGER_IDLE);}

createCaptureSession 预览准备工作

这里完全找找Camera2 API 开发的流程要求，先进行预览准备工作，可以理解为参数设置。mCameraDevice.createCaptureSession(Arrays.asList(mPreviewSurface, mImageReader.getSurface()), new CameraCaptureSession.StateCallback() {@Overridepublic void onConfigured(CameraCaptureSession session) {mCaptureSession = session;repeatPreview();}@Overridepublic void onConfigureFailed(CameraCaptureSession session) {}}, null);

setRepeatingRequest 请求预览

这里只是一个请求操作，前面参数设置了为预览，所以这里局势预览操作

    private void repeatPreview() {mPreviewRequestBuilder.setTag(TAG_PREVIEW);mPreviewRequest = mPreviewRequestBuilder.build();try {mCaptureSession.setRepeatingRequest(mPreviewRequest, mPreviewCaptureCallback, null);} catch (CameraAccessException e) {e.printStackTrace();}}

总结

• Camera2 实现基本API操作
• 重力感应四个方向适配，注意显示UI组件几个必备操作：显示大小、缩放、旋转、旋转位置x、y
• 作为一个笔记篇，使用地方蛮多的，简单总结

核心基本代码如下

public class MainActivity extends Activity {private static final String TAG = "MainActivity";private static final String TAG_PREVIEW = "dddd";private static final SparseIntArray ORIENTATION = new SparseIntArray();static {ORIENTATION.append(Surface.ROTATION_0, 90);ORIENTATION.append(Surface.ROTATION_90, 0);ORIENTATION.append(Surface.ROTATION_180, 270);ORIENTATION.append(Surface.ROTATION_270, 180);}private String mCameraId;private Size mPreviewSize;private ImageReader mImageReader;private CameraDevice mCameraDevice;private CameraCaptureSession mCaptureSession;private CaptureRequest mPreviewRequest;private CaptureRequest.Builder mPreviewRequestBuilder;private AutoFitTextureView textureView;private Surface mPreviewSurface;private String hdmiPlug = "0";private boolean isRotation = false;Handler mHandler = new Handler();Runnable mRun = new Runnable() {@Overridepublic void run() {Log.d("dddd", "mHandler =" + hdmiPlug);plugHandler.removeCallbacks(plugRun);sendHdmiInSpk("0");finish();}};Handler plugHandler = new Handler();Runnable plugRun = new Runnable() {@Overridepublic void run() {Log.d("dddd", "plugHandler =" + hdmiPlug);getHdmiInPlug();}};TextureView.SurfaceTextureListener textureListener = new TextureView.SurfaceTextureListener() {@Overridepublic void onSurfaceTextureAvailable(SurfaceTexture surface, int width, int height) {setupCamera(width, height);configureTransform(width, height);openCamera();}@Overridepublic void onSurfaceTextureSizeChanged(SurfaceTexture surface, int width, int height) {configureTransform(width, height);}@Overridepublic boolean onSurfaceTextureDestroyed(SurfaceTexture surface) {return false;}@Overridepublic void onSurfaceTextureUpdated(SurfaceTexture surface) {}};private final CameraDevice.StateCallback stateCallback = new CameraDevice.StateCallback() {@Overridepublic void onOpened(CameraDevice camera) {mCameraDevice = camera;startPreview();}@Overridepublic void onDisconnected(CameraDevice camera) {Log.i(TAG, "CameraDevice Disconnected");}@Overridepublic void onError(CameraDevice camera, int error) {Log.e(TAG, "CameraDevice Error = " + error);if (error == 4) {Toast.makeText(MainActivity.this, MainActivity.this.getString(R.string.fise_error_title), Toast.LENGTH_SHORT).show();sendHdmiInPlug();plugHandler.removeCallbacks(plugRun);mHandler.postDelayed(mRun, 1000);}}};private CameraCaptureSession.CaptureCallback mPreviewCaptureCallback = new CameraCaptureSession.CaptureCallback() {@Overridepublic void onCaptureCompleted(CameraCaptureSession session, CaptureRequest request, TotalCaptureResult result) {}@Overridepublic void onCaptureProgressed(CameraCaptureSession session, CaptureRequest request, CaptureResult partialResult) {}};@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);int uiFlags = View.SYSTEM_UI_FLAG_LAYOUT_STABLE| View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION| View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN| View.SYSTEM_UI_FLAG_HIDE_NAVIGATION| View.SYSTEM_UI_FLAG_FULLSCREEN| View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;getWindow().getDecorView().setSystemUiVisibility(uiFlags);getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);// 添加标志以强制Activity全屏显示getWindow().addFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN);getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN);if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB) {getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);}}@Overrideprotected void onStart() {super.onStart();Permission.checkPermission(this);}private void setupCamera(int width, int height) {CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);try {for (String cameraId : manager.getCameraIdList()) {CameraCharacteristics characteristics = manager.getCameraCharacteristics(cameraId);if (characteristics.get(CameraCharacteristics.LENS_FACING) == CameraCharacteristics.LENS_FACING_FRONT)continue;StreamConfigurationMap map = characteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);mPreviewSize = getOptimalSize(map.getOutputSizes(SurfaceTexture.class), width, height);Log.d(TAG, "getOptimalSize:  ORIENTATION_PORT  " + width + " x " + height);int orientation = getResources().getConfiguration().orientation;if (orientation == Configuration.ORIENTATION_LANDSCAPE) {Log.d(TAG, "setupCamera: ORIENTATION_LANDSCAPE  " + mPreviewSize.getWidth() + " x " + mPreviewSize.getHeight());textureView.setAspectRatio(1920, 1080);} else {textureView.setAspectRatio(mPreviewSize.getHeight(), mPreviewSize.getWidth());Log.d(TAG, "setupCamera:  ORIENTATION_PORT  " + mPreviewSize.getWidth() + " x " + mPreviewSize.getHeight());}break;}} catch (CameraAccessException e) {e.printStackTrace();}}private boolean getDevVideoList() {File file = new File("/dev/video3");if (file.exists()) {Log.d("huanghb", "video3 true");return true;}Log.d("huanghb", "video3 false");return false;}private void openCamera() {CameraManager manager = (CameraManager) getSystemService(Context.CAMERA_SERVICE);int i = 0;try {i = manager.getCameraIdList().length;} catch (CameraAccessException e) {e.printStackTrace();}if (getDevVideoList()) {i = i - 1;}if (i == 2) {mCameraId = "9";} else {mCameraId = "0";}try {if (ActivityCompat.checkSelfPermission(this, Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED) {Log.d(TAG," has no CAMERA  permission");return;}manager.openCamera(mCameraId, stateCallback, null);} catch (CameraAccessException e) {e.printStackTrace();}}private void closeCamera() {Log.d(TAG, "closeCamera");if (null != mCaptureSession) {mCaptureSession.close();mCaptureSession = null;}if (null != mCameraDevice) {mCameraDevice.close();mCameraDevice = null;}if (null != mImageReader) {mImageReader.close();mImageReader = null;}}private void configureTransform(int viewWidth, int viewHeight) {if (null == textureView || null == mPreviewSize) {return;}int rotation = getWindowManager().getDefaultDisplay().getRotation();Configuration config =  getResources().getConfiguration();if (config.orientation == Configuration.ORIENTATION_PORTRAIT) {Log.d(TAG, "configureTransform: ORIENTATION_PORTRAIT");if(Surface.ROTATION_90 == rotation || Surface.ROTATION_270 == rotation){isRotation = true;}} else if (config.orientation == Configuration.ORIENTATION_LANDSCAPE) {Log.d(TAG, "configureTransform: ORIENTATION_LANDSCAPE");if(Surface.ROTATION_0 == rotation || Surface.ROTATION_180 == rotation){isRotation = true;}}Log.d(TAG, "configureTransform: isRotation = "+isRotation);if(isRotation){rotation = rotation + 1;if(rotation > 3){rotation = rotation - 3;}}Log.d(TAG," aaaaaaaaaaaa rotation:"+rotation);Matrix matrix = new Matrix();RectF viewRect = new RectF(0, 0, viewWidth, viewHeight);RectF bufferRect = new RectF(0, 0, mPreviewSize.getHeight(), mPreviewSize.getWidth());float centerX = viewRect.centerX();float centerY = viewRect.centerY();if (Surface.ROTATION_90 == rotation) {bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);float scale = Math.max((float) viewHeight / mPreviewSize.getHeight(),(float) viewWidth / mPreviewSize.getWidth());matrix.postScale(scale, scale, centerX, centerY);matrix.postRotate(90 * (rotation - 2), centerX, centerY);Log.d(TAG," 00000000000000  ");}else  if ( Surface.ROTATION_270 == rotation) {bufferRect.offset(centerX - bufferRect.centerX(), centerY - bufferRect.centerY());matrix.setRectToRect(viewRect, bufferRect, Matrix.ScaleToFit.FILL);float scale = Math.max((float) viewHeight / mPreviewSize.getHeight(),(float) viewWidth / mPreviewSize.getWidth());matrix.postScale(scale, scale, centerX, centerY);matrix.postRotate(270, centerX, centerY);Log.d(TAG," bbbbbbbbbbbbbbbb  ");}  else if (Surface.ROTATION_180 == rotation) {float scale = (float)1080/ 1920;Log.d(TAG, "configureTransform: rizhi xianshi port state  scale:"+scale+"    centerX:"+centerX+"   centerY:"+centerY);matrix.postScale(scale, scale, centerX, centerY);textureView.setRotation(270f);Log.d(TAG, "configureTransform:   "+"    centerX:"+centerX+"   centerY:"+centerY);Log.d(TAG," 111111111111111  ");}else if(Surface.ROTATION_0 == rotation){float scale = (float)1080/ 1920;Log.d(TAG, "configureTransform: rizhi xianshi port state  scale:"+scale+"    centerX:"+centerX+"   centerY:"+centerY);matrix.postScale(scale, scale, centerX, centerY);textureView.setRotation(270f);Log.d(TAG," 222222222222222222  ");}textureView.setTransform(matrix);}private void startPreview() {setupImageReader();SurfaceTexture mSurfaceTexture = textureView.getSurfaceTexture();Log.d(TAG, "startPreview:  setDefaultBufferSize ： width:"+mPreviewSize.getWidth()+"  x  "+mPreviewSize.getHeight()+"   shiji xiesi 1920 x 1080");mSurfaceTexture.setDefaultBufferSize(1920, 1080);mPreviewSurface = new Surface(mSurfaceTexture);try {getPreviewRequestBuilder();mCameraDevice.createCaptureSession(Arrays.asList(mPreviewSurface, mImageReader.getSurface()), new CameraCaptureSession.StateCallback() {@Overridepublic void onConfigured(CameraCaptureSession session) {mCaptureSession = session;repeatPreview();}@Overridepublic void onConfigureFailed(CameraCaptureSession session) {}}, null);} catch (CameraAccessException e) {e.printStackTrace();}}private void repeatPreview() {mPreviewRequestBuilder.setTag(TAG_PREVIEW);mPreviewRequest = mPreviewRequestBuilder.build();try {mCaptureSession.setRepeatingRequest(mPreviewRequest, mPreviewCaptureCallback, null);} catch (CameraAccessException e) {e.printStackTrace();}}private void setupImageReader() {mImageReader = ImageReader.newInstance(mPreviewSize.getWidth(), mPreviewSize.getHeight(), ImageFormat.JPEG, 1);mImageReader.setOnImageAvailableListener(new ImageReader.OnImageAvailableListener() {@Overridepublic void onImageAvailable(ImageReader reader) {Log.i(TAG, "Image Available!");Image image = reader.acquireLatestImage();new Thread(new ImageSaver(image)).start();}}, null);}private Size getOptimalSize(Size[] sizeMap, int width, int height) {for(Size size:sizeMap){Log.d(TAG, ":  size "+size.getWidth()+"   "+size.getHeight());}List<Size> sizeList = new ArrayList<>();for (Size option : sizeMap) {if (width > height) {if (option.getWidth() > width && option.getHeight() > height) {sizeList.add(option);}} else {if (option.getWidth() > height && option.getHeight() > width) {sizeList.add(option);}}}if (sizeList.size() > 0) {return Collections.min(sizeList, new Comparator<Size>() {@Overridepublic int compare(Size lhs, Size rhs) {return Long.signum(lhs.getWidth() * lhs.getHeight() - rhs.getWidth() * rhs.getHeight());}});}Log.d(TAG, "getOptimalSize:  zuizhong  sizeMap[0]: width:"+sizeMap[0].getWidth()+"   height:"+sizeMap[0].getHeight());return sizeMap[0];}private void getPreviewRequestBuilder() {try {mPreviewRequestBuilder = mCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);} catch (CameraAccessException e) {e.printStackTrace();}mPreviewRequestBuilder.addTarget(mPreviewSurface);MeteringRectangle[] meteringRectangles = mPreviewRequestBuilder.get(CaptureRequest.CONTROL_AF_REGIONS);if (meteringRectangles != null && meteringRectangles.length > 0) {Log.d(TAG, "PreviewRequestBuilder: AF_REGIONS=" + meteringRectangles[0].getRect().toString());}mPreviewRequestBuilder.set(CaptureRequest.CONTROL_MODE, CaptureRequest.CONTROL_MODE_AUTO);mPreviewRequestBuilder.set(CaptureRequest.CONTROL_AF_TRIGGER, CaptureRequest.CONTROL_AF_TRIGGER_IDLE);}public static class ImageSaver implements Runnable {private Image mImage;public ImageSaver(Image image) {mImage = image;}@Overridepublic void run() {ByteBuffer buffer = mImage.getPlanes()[0].getBuffer();byte[] data = new byte[buffer.remaining()];buffer.get(data);File imageFile = new File(Environment.getExternalStorageDirectory() + "/DCIM/myPicture.jpg");FileOutputStream fos = null;try {fos = new FileOutputStream(imageFile);fos.write(data, 0, data.length);} catch (IOException e) {e.printStackTrace();} finally {if (fos != null) {try {fos.close();} catch (IOException e) {e.printStackTrace();}}}}}@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {if (keyCode == KeyEvent.KEYCODE_BACK) {plugHandler.removeCallbacks(plugRun);sendHdmiInSpk("0");finish();return true;}else if (keyCode == KeyEvent.KEYCODE_HOME) {plugHandler.removeCallbacks(plugRun);sendHdmiInSpk("0");finish();return true;}return super.onKeyDown(keyCode, event);}@Overrideprotected void onPause() {super.onPause();Log.d(TAG, "onPause");plugHandler.removeCallbacksAndMessages(null);  closeCamera();sendHdmiInSpk("0");super.onPause();}@Overrideprotected void onDestroy() {super.onDestroy();sendHdmiInSpk("0");Log.d("huanghb","onDestroy=");}@Overrideprotected void onResume() {super.onResume();Log.d(TAG," onREsume");if(Permission.isPermissionGranted(this)) {setContentView(R.layout.activity_main);sendHdmiInPlug();textureView = findViewById(R.id.textureView);textureView.setSurfaceTextureListener(textureListener);Log.d(TAG," 权限申请成功，走正常逻辑...");plugHandler.removeCallbacksAndMessages(null);plugHandler.postDelayed(plugRun, 2000);Log.d(TAG, "onResume: ");sendHdmiInSpk("1");}else{Log.d(TAG," 未授权成功..");}}public void  sendHdmiInSpk(String spk) {Log.d(TAG, "sendHdmiInSpk: cmdParam:" + spk);Intent intent =new  Intent();intent.setAction("com.fise.hdmiin.spk");intent.putExtra("hdmiinSpk", spk);sendBroadcast(intent);}public void sendHdmiInPlug(){Intent intent = new Intent();intent.setAction("com.fise.hdmiin.plug");sendBroadcast(intent);}private void getHdmiInPlug(){hdmiPlug = Uitls.read("/sys/class/fise_hdmiin_state_irq/fise_hdmiin_state_irq_enable");Log.d(TAG,"getHdmiInPlug ="+hdmiPlug);if(hdmiPlug == null || hdmiPlug.toString().trim().equals("")){return;}if(hdmiPlug.equals("1")){Toast.makeText(MainActivity.this, MainActivity.this.getString(R.string.fise_error_title), Toast.LENGTH_SHORT).show();sendHdmiInPlug();plugHandler.removeCallbacks(plugRun);mHandler.postDelayed(mRun, 1000);}else{plugHandler.postDelayed(plugRun, 1000);}}@Overridepublic void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {super.onRequestPermissionsResult(requestCode, permissions, grantResults);if (requestCode == Permission.REQUEST_CODE) {for (int grantResult : grantResults) {if (grantResult != PackageManager.PERMISSION_GRANTED) {Log.e("Permission","授权失败！");Toast.makeText(MainActivity.this," Please grant permission",Toast.LENGTH_LONG);this.finish();return;}}}}}