关于startActivityForResult()方法后Activity直接退出的问题原因和解决办法

	private final View.OnClickListener onClickListener = new View.OnClickListener() {

		@Override
		public void onClick(View v) {
			if(v==btnPhone){ //从相册获取图片
				Intent intent = new Intent(Intent.ACTION_PICK, null);
				intent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
						IMAGE_UNSPECIFIED);
				startActivityForResult(intent, PHOTO_ZOOM);
			}else if(v==btnTakePicture){ //从拍照获取图片
				Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
				intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(
						new File(Environment
								.getExternalStorageDirectory(),"temp.jpg")));
				startActivityForResult(intent, PHOTO_GRAPH);
			}

		}

	};