Android警告对话框示例-优快云博客

本文展示了一个Android应用中使用警告对话框的具体实现方法，包括简单的警告框、单选列表对话框及多选列表对话框的创建过程。

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package com.lanxiang.myapps;

import android.app.AlertDialog;
import android.content.DialogInterface;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends AppCompatActivity {


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
    }

    private void initView() {

    }

    private void initData() {

    }

    public void click1(View v) {
        AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
        builder.setTitle("提示");
        builder.setMessage("是否删除当前选择项？");
        builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                Toast.makeText(MainActivity.this, "啊啊啊啊啊啊啊啊啊啊", Toast.LENGTH_SHORT).show();
            }
        });
        builder.setNegativeButton("取消", null);
        builder.show();
    }

    public void click2(View v) {
        final AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this);
        builder.setTitle("请选泽你想免费的商品");
        final String[] items = {"别墅房","美女主播","黄瓜"};
        /**
         * 单选对话框
         */
        builder.setSingleChoiceItems(items, -1, new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i) {
                Toast.makeText(MainActivity.this, "我就知道你会选我的！", Toast.LENGTH_SHORT).show();
                dialogInterface.dismiss();
            }
        });
        //设置用户不可点击除对话框以外的地方，导致对话框消失
        builder.setCancelable(false);
        builder.setNegativeButton("取消",null);
        builder.show();
    }
    public void click3(View view){
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("请选择你喜欢的美女类型");
        String[] items = {"少女","少妇","成熟","小鸟依人","霸道总裁","活泼性感"};
        boolean[] checkedItems = {true, true, false, false,false,false};
        builder.setMultiChoiceItems(items, checkedItems, new DialogInterface.OnMultiChoiceClickListener() {
            @Override
            public void onClick(DialogInterface dialogInterface, int i, boolean b) {
                Toast.makeText(MainActivity.this, "我就知道你会选我的！", Toast.LENGTH_SHORT).show();

            }
        });
        builder.setNegativeButton("取消选择", null);
        builder.show();
    }

}