我想拍張照片并保存到畫廊。然后從圖庫中讀取這張照片并將其轉換為文本（使用 ocr）但是當我嘗試用這行代碼保存它時，我的應用程序不斷崩潰cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);我調試了我的應用程序，發現這條線是導致崩潰的原因。但是沒有這條線，我無法保存我的圖像。我怎樣才能做到這一點 ？package com.example.takepicture;import ...public class MainActivity extends AppCompatActivity {       private static final int CAMERA_REQUEST = 1888;    ImageView imageView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);         Button btnCamera = (Button) findViewById(R.id.btnCamera);        imageView = (ImageView) findViewById(R.id.ImageView);         btnCamera.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View view) {                Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);                File pictureDirectory = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_PICTURES);                String pictureName = getPictureName();                File imageFile = new File(pictureDirectory,pictureName);                Uri pictureUri = Uri.fromFile(imageFile);                cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, pictureUri);                startActivityForResult(cameraIntent, CAMERA_REQUEST);                //capturarFoto();            }        });    }    private String getPictureName() {        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());        return "Img" + timeStamp + ".jpg";    }    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (requestCode == RESULT_OK) {            if (requestCode == CAMERA_REQUEST) {            }        }    }}