Android(安卓)使用系统摄像头拍相片与拍视频，并显示

public class OpenCamaraActivity extends BaseActivity {    private static final int IMAGE_REQUEST_CODE = 0;    private static final int VIDEO_REQUEST_CODE = 1;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);    }    public void openImage(View view) {        Intent intent = new Intent();        intent.setAction("android.media.action.IMAGE_CAPTURE");        intent.addCategory("android.intent.category.DEFAULT");        Uri value = Uri.fromFile(new File("/sdcard/image.jpg"));        intent.putExtra(MediaStore.EXTRA_OUTPUT, value);        startActivityForResult(intent, IMAGE_REQUEST_CODE);    }    public void openVideo(View view) {        Intent intent = new Intent();        intent.setAction("android.media.action.VIDEO_CAPTURE");        intent.addCategory("android.intent.category.DEFAULT");        Uri value = Uri.fromFile(new File("/sdcard/good.3gp"));        intent.putExtra(MediaStore.EXTRA_OUTPUT, value);        startActivityForResult(intent, VIDEO_REQUEST_CODE);    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        if (data != null) {            if (requestCode == IMAGE_REQUEST_CODE) {                //打开图片                Uri uri = data.getData();                ImageView imageView = new ImageView(this);                imageView.setImageURI(uri);            }else if (requestCode == VIDEO_REQUEST_CODE) {                //打开视频                Uri uri = data.getData();                //VideoView videoView = (VideoView)this.findViewById(R.id.video_view);                 VideoView videoView = new VideoView(this);                videoView.setMediaController(new MediaController(this));                    videoView.setVideoURI(uri);                    videoView.start();                    videoView.requestFocus();            }        }        super.onActivityResult(requestCode, resultCode, data);    }}
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