我需要哪个方面？ [英] Which context do i need?

问题描述

我创建一个对话框，并使用（本）心不是工作。到现在为止，它只是是一个按钮呼叫被叫DialogBox的内DialogBox的，但现在该按钮需要调用另一个对话框。对话框dialogdelcon是一个有问题的。

下面是code：

 情况下R.id.delappt：
        // rmvall（）;        最后一个对话框dialogdelsel =新的对话框（本）;
           dialogdelsel.setContentView（R.layout.delsel）;
           dialogdelsel.setTitle（你想怎么办？）;
           dialogdelsel.setCancelable（真）;          按钮btndelsel =（按钮）dialogdelsel.findViewById（R.id.btndelsel）;
          btndelsel.setOnClickListener（新OnClickListener（）{
               @覆盖
               公共无效的onClick（视图v）{
                   //此处删除所选的code。               }
           }）;         按钮btndelall =（按钮）dialogdelsel.findViewById（R.id.btndelall）;
          btndelall.setOnClickListener（新OnClickListener（）{
               @覆盖
               公共无效的onClick（视图v）{
                   //此处删除所有code。
                  最后一个对话框dialogdelcon =新的对话框（）;
                   dialogdelcon.setContentView（R.layout.delcon）;
                   dialogdelcon.setTitle（删除确认）;
                   dialogdelcon.setCancelable（真）;                  按钮buttoncnclok =（按钮）dialogdelcon.findViewById（R.id.btndelcon）;
                   buttoncnclok.setOnClickListener（新OnClickListener（）{                    //在点击取消按钮
                       @覆盖
                       公共无效的onClick（视图v）{
                           dialogdelcon.dismiss（）;
                       }
                   }）;                 dialogdelcon.show（）;
               }
           }）;
        dialogdelsel.show（）;
        打破;
 

解决方案

getApplicationContext（）或使用 YourActictyName.this 由于这个指按钮点击听者，而不是你的类对象

I'm creating a dialog box and using the (this) isnt working. Up until now its just been a button calling a dialogbox but now the button within the called dialogbox needs to call another dialog. The Dialog dialogdelcon is the one with problem.

Here is the code:

case R.id.delappt:
        //rmvall();

        final Dialog dialogdelsel = new Dialog(this);
           dialogdelsel.setContentView(R.layout.delsel);
           dialogdelsel.setTitle("What would you like to do?");
           dialogdelsel.setCancelable(true);

          Button btndelsel = (Button) dialogdelsel.findViewById(R.id.btndelsel);
          btndelsel.setOnClickListener(new OnClickListener() {


               @Override
               public void onClick(View v) {
                   // delete selected code here.

               }
           });

         Button btndelall = (Button) dialogdelsel.findViewById(R.id.btndelall);
          btndelall.setOnClickListener(new OnClickListener() {


               @Override
               public void onClick(View v) {
                   // delete all code here.
                  final Dialog dialogdelcon = new Dialog();
                   dialogdelcon.setContentView(R.layout.delcon);
                   dialogdelcon.setTitle("Deletion Confirmation");
                   dialogdelcon.setCancelable(true);

                  Button buttoncnclok = (Button) dialogdelcon.findViewById(R.id.btndelcon);
                   buttoncnclok.setOnClickListener(new OnClickListener() {

                    // on click for cancel button
                       @Override
                       public void onClick(View v) {
                           dialogdelcon.dismiss();
                       }
                   });

                 dialogdelcon.show();
               }
           });


        dialogdelsel.show();
        break;

解决方案

getApplicationContext() or use YourActictyName.this Because this refers the button click listner ,not your class Object

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