调用有抛出IOException异常
问题描述:
这是我的代码的方法:调用有抛出IOException异常
public class CameraFragment extends Fragment{
String mCurrentPhotoPath = "";
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
try {
dispatchTakePictureIntent(); // Here I try to call this method
} catch (IOException dfg) {
Toast.makeText(getContext(), "ERROR!", Toast.LENGTH_LONG).show();
}
//dispatchTakePictureIntent(); //I can't call this like I did here
return inflater.inflate(R.layout.fragment_camera, container, false);
}
ImageView SkimmedImageImg;
@Override
public void onViewCreated(View view, Bundle savedInstanceState){
super.onViewCreated(view, savedInstanceState);
SkimmedImageImg = (ImageView)view.findViewById(R.id.SkimmedImg);
}
static final int REQUEST_IMAGE_CAPTURE = 1;
private void dispatchTakePictureIntent() throws IOException{
..CODE..
photo = createImageFile();
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data){
..CODE..
}
private File createImageFile() throws IOException{
// Create an image file name
String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
String imageFileName = "JPEG_" + timeStamp + "_";
File storageDir = new File(Environment.getExternalStoragePublicDirectory(
Environment.DIRECTORY_DCIM), "Camera");
File image = File.createTempFile(
imageFileName, /* prefix */
".jpg", /* suffix */
storageDir /* directory */
);
// Save a file: path for use with ACTION_VIEW intents
mCurrentPhotoPath = "file:" + image.getAbsolutePath();
return image;
}
}
我怎样才能解决这个问题? 我不能从每个函数中删除“throws IOException”,因为我必须调用“createImageFile()”,并且在没有“throws IOException”的情况下这不起作用。
有些想法? 谢谢!
答
在你的代码...
//dispatchTakePictureIntent(); //I can't call this like I did here
权......你不能没有try-catch
-ing调用它。该方法throws
同样,在你的代码
try { dispatchTakePictureIntent(); // Here I try to call this method } catch (IOException dfg) { Toast.makeText(getContext(), "ERROR!", Toast.LENGTH_LONG).show(); }
你调用的方法精细。您“发现”throws
正在宣布的异常。
如果你想实际“看到”错误,不要敬酒。这是一个糟糕的用户界面设计,需要随机弹出。
使用日志(和名称dfg
更好)
你有没有了解异常处理什么?特别是'try'或'catch'? –
您之前的回答正确地使用了它......为什么你没有使用该代码? http://*.com/a/42330491/2308683 –
“我该如何解决这个问题?”什么问题?具体的错误是什么? – Alex