我希望展示的使用面类相机电影:为什么`UnsupportedOperationException`抛出尝试将SurfaceView与相机关联?
SurfaceView view = (SurfaceView) findViewById(R.id.camera_view);
Surface appSurface = view.getHolder().getSurface();
我通过Surface物件到CameraManager API:
CameraManager manager = (CameraManager) this.getSystemService(Context.CAMERA_SERVICE);
manager.openCamera(
manager.getCameraIdList()[0],
new CameraDevice.StateCallback() {
@Override
public void onOpened(CameraDevice camera) {
// Why this line throws an exception?
camera.createCaptureSession(
Collections.singletonList(appSurface),
new CameraCaptureSession.StateCallback() {...},
null);
}
// other @Override methods
...
},
new Handler(getMainLooper())
);
而且收到以下异常:
FATAL EXCEPTION: main
Process: com.google.android.apps.internal.smartcamera.tagger, PID: 8563
java.lang.UnsupportedOperationException: Unknown error -22
at android.hardware.camera2.legacy.LegacyExceptionUtils.throwOnError(LegacyExceptionUtils.java:77)
at android.hardware.camera2.legacy.LegacyCameraDevice.getSurfaceSize(LegacyCameraDevice.java:583)
at android.hardware.camera2.utils.SurfaceUtils.getSurfaceSize(SurfaceUtils.java:68)
看起来,SurfaceUtils类(它是一块本地c代码)无法正确读取Surface尺寸。 为什么?
我有他们,这并没有解决问题。 – mercury0114