Android选取相册图片并裁剪

	private static final int TAKE_PICTURE_FROM_ALBUM = 1;
	private void takePictureFromAlbum() {
		Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
		intent.setType("image/*");
		startActivityForResult(intent, TAKE_PICTURE_FROM_ALBUM);
	}

	@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		if (resultCode == Activity.RESULT_OK) {
			switch (requestCode) {
			case TAKE_PICTURE_FROM_ALBUM:
				if (data != null) {
					cropPictureFromAlbum(data.getData());
				}
				break;
			case PICTURE_CROP_CODE:
				if (data != null) {
					// 这是裁剪后图片的bitmap
					Bitmap bitmap = data.getParcelableExtra("data");
				}
				break;
			default:
				break;
			}
		}
	}

	private static final int TAKE_PICTURE_FROM_ALBUM = 1;

	private void takePictureFromAlbum() {
		Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
		intent.setType("image/*");
		startActivityForResult(intent, TAKE_PICTURE_FROM_ALBUM);
	}

	private static final int PICTURE_CROP_CODE = 2;

	private void cropPictureFromAlbum(Uri pictureUri) {
		Intent intent = new Intent("com.android.camera.action.CROP");
		intent.setDataAndType(pictureUri, "image/*");
		intent.putExtra("crop", "true");
		// 裁剪框比例
		intent.putExtra("aspectX", 1);
		intent.putExtra("aspectY", 2);

		// 裁剪后输入图片的尺寸大小
		intent.putExtra("outputX", 300);
		intent.putExtra("outputY", 300);

		// 取消人脸识别
		intent.putExtra("noFaceDetection", true);

		intent.putExtra("return-data", true);

		startActivityForResult(intent, PICTURE_CROP_CODE);
	}