[英]Why I'm not receiving any results from onActivityResult
我是通過在按下按鈕時調用showPickImageDialog()方法從AddFragment啟動DialogFragment的 。 在AlertDialogFragment onActivityResult中,我將結果發送回AddFragment,但是AddFragment沒有收到任何結果。 有什么想法嗎?
AddFragment:
public class AddFragment extends Fragment {
private static final int REQUEST_IMAGE = 3;
private static final String DIALOG_IMAGE = "image";
private static final String TAG = "TAG";
void showPickImageDialog() {
FragmentManager fm = getActivity()
.getSupportFragmentManager();
AlertDialogFragment pdialog = new AlertDialogFragment();
pdialog.setTargetFragment(this, REQUEST_IMAGE);
pdialog.show(fm, DIALOG_IMAGE);
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_IMAGE && resultCode == Activity.RESULT_OK){
Log.e(TAG,"back in AddFragment");
}
}
}
在AlertDialogFragment中,我從onActivityResult方法調用sendResult方法。 調用SendResult方法,我用Logs檢查了它
AlertDialogFragment:
public class AlertDialogFragment extends DialogFragment {
private final static String TAG = "Cload";
public static final String EXTRA_PHOTOFILENAME =
"com.example.tadas.dreamcload1.image";
private static final int REQUEST_IMAGE = 3;
private String filename;
private Uri uri;
private void sendResult(int resultCode) {
if(getTargetFragment() == null){return;}
Intent i = new Intent();
i.putExtra(EXTRA_PHOTOFILENAME,filename);
getTargetFragment()
.onActivityResult(getTargetRequestCode(), resultCode, i);
}
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
//LayoutInflater inflater = getLayoutInflater();
// View dialogLaout = inflater.inflate(R.layout.custom_dialog_pick_image,null);
LayoutInflater inflater = getActivity().getLayoutInflater();
View view = inflater.inflate(R.layout.custom_dialog_pick_image, null);
final AlertDialog dialog = new AlertDialog.Builder(getActivity())
.setView(view)
.create();
ImageButton gallerybtn = (ImageButton)view.findViewById(R.id.gallery);
ImageButton camerabtn = (ImageButton)view.findViewById(R.id.camera);
gallerybtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
Log.e(TAG,"gallery btn pressed");
Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
startActivityForResult(intent, REQUEST_IMAGE);
}
});
camerabtn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
}
});
return dialog;
}
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_IMAGE && resultCode == Activity.RESULT_OK){
uri = data.getData();
final String[] filePathColumn = {MediaStore.MediaColumns.DATA, MediaStore.MediaColumns.DISPLAY_NAME};
Cursor c = getActivity().getContentResolver()
.query(uri,filePathColumn,null,null,null);
if (c.moveToFirst()){
int ids = c.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
uri = Uri.parse(c.getString(ids));
filename = uri.toString();
c.close();
}
sendResult(Activity.RESULT_OK);
dismiss();
}
}
您可以在Activity
覆蓋onActivityResult
方法,並手動調用Fragment的onActivityResult
,如下所示:
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.your_container);
fragment.onActivityResult(requestCode, resultCode, data);
}
您可以在Activity的onActivityResult
方法中定義此部分:
@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_IMAGE && resultCode == Activity.RESULT_OK){
uri = data.getData();
final String[] filePathColumn = {MediaStore.MediaColumns.DATA, MediaStore.MediaColumns.DISPLAY_NAME};
Cursor c = getActivity().getContentResolver()
.query(uri,filePathColumn,null,null,null);
if (c.moveToFirst()){
int ids = c.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
uri = Uri.parse(c.getString(ids));
filename = uri.toString();
c.close();
}
// You do not need this any more
//sendResult(Activity.RESULT_OK);
//dismiss();
// Just find your fragment and call it's onActivityResult
Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.your_container);
fragment.onActivityResult(requestCode, resultCode, data);
}
}
我認為此更改將為您提供幫助。
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