Jack Jack - 2 months ago 27
Android Question

Start Dialog for result to return value to main activity

I have been trying to get my head around this for a couple of hours now.

I have a main Fragment class, then from the onClick I have set up from an ImageView in that class , I am starting a Dialog Fragment with a simple "Yes" or "Cancel" option.

How would I make it so that when the user clicks "Ok", it will then send a Result code back to my main Fragment telling it to run some code(In my case, I am setting wallpaper).

This sound simple but can't seem to figure it out. Thanks in advance.

Onclick where I would like to somehow get the result back to:

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {

final View v = inflater.inflate(R.layout.image_detail_fragment,
container, false);

mImageView = (RecyclingImageView) v.findViewById(R.id.imageView);
mImageView.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View arg0) {

MyDialogFragment dialog = new MyDialogFragment();
dialog.show(getActivity().getFragmentManager(),
"MyDialogFragment");

}

public void onDialogOKPressed() {

((ImageDetailFragment) (DialogFragment.this.getParentFragment()))
.onDialogOKPressed();
dismiss();

}
});

return v;
}


Dialog class:

class MyDialogFragment extends DialogFragment {
private Button ButtonOk;
private Button ButtonCancel;

public MyDialogFragment() {

}

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.prompt, container);
ButtonOk = (Button) view.findViewById(R.id.button1);
ButtonCancel = (Button) view.findViewById(R.id.button2);
getDialog().setTitle("Set Wallpaper?");

ButtonOk.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub

((MyDialogFragment)(DialogFragment.this.getActivity())).onDialogOKPressed();
dismiss();


}

});

ButtonCancel.setOnClickListener(new View.OnClickListener() {

@Override
public void onClick(View v) {
// TODO Auto-generated method stub

MyDialogFragment.this.dismiss();

}
});

return view;

}
}

Answer

In your activity, add a method that responds to the OK button being pressed, such as public void onDialogOKPressed(). Then, in the onClickListener of your OK button in the DialogFragment, do this:

public void onClick(View v){
    ((MyActivity)(DialogFragment.this.getActivity())).onDialogOKPressed();
    dismiss();
}

or put the new method into your main fragment and do this:

public void onClick(View v){
    ((MyMainFragment)(DialogFragment.this.getParentFragment())).onDialogOKPressed();
    dismiss();
}
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