Question

我在主活动中托管了一个对话框，要求输入名称。如果用户在对话框中按下确定，则名称将传递给托管活动并打印为textView。

问题是在textView中发送了空值。

这是我的对话框代码 -

public class dialog extends DialogFragment {
    public interface myInter{
        public void positive(String name);
        public void negative();
    }
    myInter ob;


    @Override
    public Dialog onCreateDialog(Bundle savedInstanceState) {

        AlertDialog.Builder ad=new AlertDialog.Builder(getActivity());
        LayoutInflater li=getActivity().getLayoutInflater();
        final View v=li.inflate(R.layout.dialog,null);
        ad.setView(li.inflate(R.layout.dialog,null));


        ad.setTitle("This is a dialog box");
        ad.setMessage("HI, Do you agree with our terms and conditions ?");
        ad.setPositiveButton("Alright", new DialogInterface.OnClickListener(){  public void onClick(DialogInterface di,int id){        
            EditText et=(EditText)v.findViewById(R.id.editText1);
        ob.positive(et.getText().toString());


        }});


        ad.setNegativeButton("Nope", new DialogInterface.OnClickListener(){ public void onClick(DialogInterface di,int i){    

ob.negative();      
        }});
        return ad.create();
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        try{
        ob=(myInter)activity;

        }
        catch(Exception e){
            throw new ClassCastException();

        }


    }




}

我在主要活动中收到空值请帮助。

Answer 1

因为来自行，

final View v=li.inflate(R.layout.dialog,null);
ad.setView(li.inflate(R.layout.dialog,null));

您有两个布局对话框视图参考，

改变它，

final View v=li.inflate(R.layout.dialog,null);
ad.setView(v);

具有自定义布局的对话框在editText中传递空值

1 个答案: