Question

我有一个泛型类女巫会弹出一个简单的对话框：

public class GenericDialogPopUp {

    public static void genericCreatePopUp(Context context) {

    AlertDialog.Builder builder = new AlertDialog.Builder(context);
    builder.setTitle("Title");
    builder.setMessage("message body");

    builder.setPositiveButton("ok", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            // do if ok is pressed
        }
    });

    builder.setNegativeButton("cancel", new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
                // do if cancel is pressed
        }
    });

    builder.setIcon(android.R.drawable.ic_dialog_alert);
        builder.show();
    }
}

我需要在Fragment / Activity中调用此方法：

GenericDialogPopUp.genericCreatePopUp(getActivity()); / GenericDialogPopUp.genericCreatePopUp(SomeActivity.this);

问题是我想创建一种监听器来知道是否按下了对话框中的确定按钮，然后在这个中执行这些操作（我在这里调用对话框）类，如：

  if(ok_bt)

     private void doPositive(){                //code            }

   else   

     private void doNegative(){                //code            }

Answer 1

您的genericCreatePopUp方法如下

  public static void genericCreatePopUp(Context context, final SimpleListener listener) {

    AlertDialog.Builder builder = new AlertDialog.Builder(context);
    builder.setTitle("Title");
    builder.setMessage("message body");

    builder.setPositiveButton(okTxt, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            listener.onPosBtnClick();
        }
    });

    builder.setNegativeButton(bt_can, new DialogInterface.OnClickListener() {
        public void onClick(DialogInterface dialog, int id) {
            listener.onNegBtnClick();
        }
    });

    builder.setIcon(android.R.drawable.ic_dialog_alert);
        builder.show();
    }

SimpleListener接口：

  interface SimpleListener {
    void onPosBtnClick();
    void onNegBtnClick();
  }

从Fragment / Activity中调用它：

genericCreatePopUp(context, new SimpleListener (){

     @Override
     onPosBtnClick(){
         // your code
     }

     @Override
     onNegBtnClick(){
          // your code
     }
});

Android Dialog自定义OnClickListener

1 个答案: