AlertDialog弹出对话框

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AlertDialog弹出对话框

这里写图片描述
以下主要代码：

package com.example.alertdialog;import android.app.Activity;import android.app.AlertDialog;import android.content.DialogInterface;import android.os.Bundle;import android.view.View;import android.widget.Toast;public class MainActivity extends Activity {    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);    }    public void dhkclick(View v){        AlertDialog.Builder builder=new AlertDialog.Builder(this);        builder.setTitle("提示");        builder.setCancelable(false);//点击 对话框 的外部不会消失        builder.setIcon(R.drawable.ic_launcher).setMessage("是否删除信息");        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                Toast.makeText(MainActivity.this, "已经删除", 0).show();            }        });        builder.setNegativeButton("取消", new DialogInterface.OnClickListener() {            @Override            public void onClick(DialogInterface dialog, int which) {                Toast.makeText(MainActivity.this, "已经取消", 0).show();            }        });        builder.show();    }}

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