[移动开发]android7 Camera2 拍照保存到本地源码分析

以下的代码源码路径都在? packages/apps/Camera2/ 下面，以下为调用流程

com.android.camera.CaptureModule  ->  takePictureNow()

com.android.camera.one.v2.initialization.GenericOneCameraImpl  ->  takePicture

com.android.camera.one.v2.photo.PictureTakerImpl    ->   takePicture(OneCamera.PhotoCaptureParameters params, final CaptureSession session)

com.android.camera.one.v2.photo.PictureTakerImpl  ->  run

com.android.camera.one.v2.photo.SimpleImageCaptureCommand ->  run


com.android.camera.one.v2.imagesaver.MostRecentImageSaver  ->  addFullSizeImage  ->  close()


com.android.camera.one.v2.imagesaver.JpegImageBackendImageSaver  ->   saveAndCloseImage

com.android.camera.processing.imagebackend.ImageBackend   ->  receiveImage(ImageToProcess img, Set<TaskImageContainer> tasks,
            boolean blockUntilImageRelease, boolean closeOnImageRelease,
            Optional<Runnable> runnableWhenDone)

com.android.camera.processing.imagebackend.TaskCompressImageToJpeg.java   ->   run   

以下的代码控制了图片保存的方向

                    final DeviceOrientation exifDerivedRotation;
                    if (exifOrientation == null) {
                        // No existing rotation value is assumed to be 0
                        // rotation.
                        exifDerivedRotation = DeviceOrientation.CLOCKWISE_0;
                    } else {
                        exifDerivedRotation = DeviceOrientation
                                .from(exifOrientation);
                    }
					
					
					
com.android.camera.session.PlaceholderManager  ->  	finishPlaceholder 

com.android.camera.Storage ->  updateImage	-> addImageToMediaStore ->getContentValuesForData