拍照2

public class MainActivity extends AppCompatActivity {    private ImageView mImageView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        mImageView = (ImageView) findViewById(R.id.imageView);    }    public void myClick(View view) {        // 开始拍照        dispatchTakePictureIntent();    }    @Override    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions, @NonNull int[] grantResults) {        super.onRequestPermissionsResult(requestCode, permissions, grantResults);    }    static final int REQUEST_IMAGE_CAPTURE = 1;    private void dispatchTakePictureIntent() {        Intent takePictureIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);        if (takePictureIntent.resolveActivity(getPackageManager()) != null) {            startActivityForResult(takePictureIntent, REQUEST_IMAGE_CAPTURE);        }    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if (requestCode == REQUEST_IMAGE_CAPTURE && resultCode == RESULT_OK) {            Bundle extras = data.getExtras();            Bitmap imageBitmap = (Bitmap) extras.get("data");            mImageView.setImageBitmap(imageBitmap);        }    }}