当我们从相机或图库获取照片时，通常会使用Android的Intent功能来启动相应的应用程序。在ActivityResult回调中，我们将获得一个包含所选图像路径的Intent对象，以便我们可以使用该路径加载并显示相应图像。但是，有时在调用OnActivityResult时会出现崩溃的问题。

这可能是由于在使用相机或图库应用程序时，我们没有正确处理ActivityResult回调。我们需要确保在启动相机/图库时，在onCreate方法中注册我们的ActivityResultHandler代码，以确保在照片捕获完成后正确地读取并使用该图像。以下是一个示例：

public class MainActivity extends AppCompatActivity {

private Button btnCamera;
private ImageView imgView;
private Uri fileUri;
String imagePath;

private static final int CAMERA_CAPTURE_IMAGE_REQUEST_CODE = 100;
private static final int SELECT_PICTURE = 200;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_main);

    btnCamera = (Button) findViewById(R.id.btnCamera);
    imgView = (ImageView) findViewById(R.id.imgView);

    // Register onActivityResult handlers
    startActivityForResult(new Intent(this, MainActivity.class), SELECT_PICTURE);
    startActivityForResult(new Intent(MediaStore.ACTION_IMAGE_CAPTURE), CAMERA_CAPTURE_IMAGE_REQUEST_CODE);

    btnCamera.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);

            fileUri = getOutputMediaFileUri();

            intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);

            startActivityForResult(intent, CAMERA_CAPTURE_IMAGE_REQUEST_CODE);
        }
    });
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (resultCode == RESULT_OK) {
        if (requestCode == CAMERA_CAPTURE_IMAGE_REQUEST_CODE) {
            imagePath = getRealPathFromURI(fileUri);

            BitmapFactory.Options options = new BitmapFactory.Options();
            options.inSampleSize = 8;
            final Bitmap bitmap = BitmapFactory.decodeFile(imagePath, options);

            imgView.setImageBitmap(bitmap);
        }
        else if (requestCode == SELECT_PICTURE) {
            Uri selectedImageUri = data.getData();
            String[] filePathColumn = { MediaStore.Images.Media.DATA };

            Cursor cursor = getContentResolver().query(selectedImageUri,
                    filePathColumn, null, null, null);
            cursor.moveToFirst();

            imagePath = cursor.getString(cursor.getColumnIndex(filePathColumn[0]));
            cursor.close();

            BitmapFactory.Options options = new BitmapFactory.Options();
            options.inSampleSize = 8;
            final Bitmap bitmap =