问题
How to retrieve editText1 in this DialogFragment? It exists in vraag_banen.xml but getView() is null.
The dialog shows fine, also no compilation errors, however I cannot figure out how to write the eventhandler for the PositiveButton, using a custom view from an xml resourcefile.
package mypackage;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.AlertDialog.Builder;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.content.Intent;
import android.os.Bundle;
import android.support.v4.app.DialogFragment;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.EditText;
public class VraagBanenDialogFragment extends DialogFragment {
@Override
public Dialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
// Get the layout inflater
LayoutInflater inflater = getActivity().getLayoutInflater();
// Inflate and set the layout for the dialog
// Pass null as the parent view because its going in the dialog layout
builder.setView(inflater.inflate(R.layout.vraag_banen, null))
// Add action buttons
.setPositiveButton(R.string.dialog_ok, new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int id) {
Activity pa = getActivity().getParent(); //-> TabsMenu
Context bc = getActivity().getBaseContext(); //-> ContextImpl
View vi = getView(); //-> null
Class<? extends OnClickListener> cl = this.getClass(); //-> Class (nl.computerhuys.tabnavui.VraagBanenDialogFragment$1)
String acn = getActivity().getClass().getName(); //-> nl.computerhuys.tabnavui.Spel
String cn = getClass().getName(); //-> nl.computerhuys.tabnavui.VraagBanenDialogFragment$1
OnClickListener t = this; //-> VraagBanenDialogFragment$1
EditText editText1 = (EditText) getView().findViewById(R.id.editText1);
EditText editText2 = (EditText) getView().findViewById(R.id.editText2);
int baan1 = Integer.valueOf(editText1.getText().toString());
int baan2 = Integer.valueOf(editText2.getText().toString());
InitSpel.addBaanNummer(baan1);
InitSpel.addBaanNummer(baan2);
}
})
.setNegativeButton(R.string.dialog_cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
VraagBanenDialogFragment.this.getDialog().cancel();
}
});
return builder.create();
}
回答1:
found a way: name the anonymous view:
View v = inflater.inflate(R.layout.vraag_banen, null)
and then use v to refer to the view, instead of getView():
EditText editText1 = (EditText) v.findViewById(R.id.editText1).
Etc. That works.
来源:https://stackoverflow.com/questions/14520899/how-to-retrieve-edittext1-in-dialogfragment-using-view-from-xml-resourcefile