android中的自定义警报框

Question

下面的类在Test.java文件中，我想从公共类Test的函数中调用它。 现在我不知道如何访问该功能来显示alertdialog。我的意思是如何从另一种方法访问下面类的onCreateDialog(Bundle savedInstanceState)？

以下代码是从this source

复制的

  class MyCustomDialog 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.notification_list_layout, null))
        // Add action buttons
               .setPositiveButton("ok", new DialogInterface.OnClickListener() {
                   public void onClick(DialogInterface dialog, int id) {
                       // sign in the user ...
                   }
               })
               .setNegativeButton("cancel", new DialogInterface.OnClickListener() {
                   public void onClick(DialogInterface dialog, int id) {
                       MyCustomDialog.this.getDialog().cancel();
                   }
               });      
        return builder.create();
    }

}

我想要这样的东西

Answer 1

MyCustomDialog custDialog = new MyCustomDialog();
custDialog.show(custDialog.getFragmentManager(), "Info"); 

Answer 2

我认为这应该有效MyCustomDialog custDialog = new MyCustomDialog(); custDialog.show(manager, tag)