Android programming implements the method of calling albums, cameras and direct cropping after taking photos

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public class ChangePortraitActivity extends Activity {
  private ImageView mImageView;
  private Button mButtonCamera;
  private Button mButtonPhoto;
  private Button mButtonBack;
  private Button mButtonSave;
  private User mUser = null;
  private File mCurrentPhotoFile;
  @Override
  public void onCreate(Bundle savedInstanceState) {
    (savedInstanceState);
    setContentView(.activity_change_portrait);
    ().addActivity(this);
    mUser = ().getCurrentUser();
    mImageView = (ImageView) (.imageview_preview);
    mButtonCamera = (Button) (.button_cameraButton);
    mButtonPhoto = (Button) (.button_photoButton);
    mButtonBack = (Button) findViewById(.button_back);
    mButtonSave = (Button) findViewById(.button_save);
    (this).updateUserPhoto(mUser, mImageView);
    (new OnClickListener() {
      @Override
      public void onClick(View v) {
        Intent intent = new Intent(".IMAGE_CAPTURE");
        mCurrentPhotoFile = new File("mnt/sdcard/DCIM/Camera/",
            getPhotoFileName());
        (MediaStore.EXTRA_OUTPUT,
            (mCurrentPhotoFile));
        startActivityForResult(intent, Activity.DEFAULT_KEYS_DIALER);
        /*
         * Intent intent = new
         * Intent(".IMAGE_CAPTURE");
         * (MediaStore.EXTRA_OUTPUT, (new
         * File(Environment .getExternalStorageDirectory(),
         * "")));
         * (MediaStore.EXTRA_VIDEO_QUALITY, 0);
         * startActivityForResult(intent, 10);
         */
      }
    });
    (new OnClickListener() {
      @Override
      public void onClick(View v) {
        Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
        (Intent.CATEGORY_OPENABLE);
        ("image/*");
        ("crop", "true");
        ("aspectX", 1);
        ("aspectY", 1);
        ("outputX", 300);
        ("outputY", 300);
        ("return-data", true);
        startActivityForResult(intent, 11);
      }
    });
    (new OnClickListener() {
      @Override
      public void onClick(View v) {
        finish();
      }
    });
    (new OnClickListener() {
      @Override
      public void onClick(View v) {
        Intent intent = new Intent(,
            );
        ();
        ("BITMAP", ()); // You can put a bitmap here        startActivity(intent);
        finish();
        overridePendingTransition(.activity_in_from_left,
            .activity_out_from_right);
      }
    });
  }
  @Override
  protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == 10 && resultCode == Activity.RESULT_OK) {
      ((new File(
          (), "")
          .getAbsolutePath()));
    } else if (requestCode == 11 && resultCode == Activity.RESULT_OK) {
      Bitmap cameraBitmap = (Bitmap) ().get("data");
      (cameraBitmap);
    } else if (requestCode == 1 && resultCode == Activity.RESULT_OK) {
      Uri imgUri = .EXTERNAL_CONTENT_URI;
      ContentResolver cr = 
          .getContentResolver();
      Uri fileUri = (mCurrentPhotoFile);
      sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE,
          fileUri));
      try {
        (3000);
      } catch (InterruptedException e) {
        ();
      }
      Cursor cursor = (imgUri, null,
          .DISPLAY_NAME + "='"
              + () + "'", null, null);
      Uri uri = null;
      if (cursor != null && () > 0) {
        ();
        long id = (0);
        uri = (imgUri, id);
      }
      final Intent intent = new Intent("");
      (uri, "image/*");
      ("crop", "true");
      ("aspectX", 1);
      ("aspectY", 1);
      ("outputX", 300);
      ("outputY", 300);
      ("return-data", true);
      (intent, 3);
    } else if (requestCode == 3 && resultCode == Activity.RESULT_OK) {
      Bitmap cameraBitmap = (Bitmap) ().get("data");
      (cameraBitmap);
    }
  }
  private String getPhotoFileName() {
    Date date = new Date(());
    SimpleDateFormat dateFormat = new SimpleDateFormat(
        "'IMG'_yyyyMMdd_HHmmss");
    return (date) + ".jpg";
  }
}