安卓开发_使用AlertDialog实现对话框

示例：

一、确定对话框

AlertDialog.Builder builder = new AlertDialog.Builder(this);
            builder.setTitle("确认对话框");
            builder.setIcon(R.drawable.icon_72);
            builder.setMessage("这里是对话框内容");
            builder.setPositiveButton("确定", new DialogInterface.OnClickListener() {
                
                @Override
                public void onClick(DialogInterface arg0, int arg1) {
                    // TODO Auto-generated method stub
                    Toast.makeText(AlertDialog_text.this, "点击了确定按钮", 1).show();
                }
            });
            AlertDialog dialog = builder.create();
            dialog.show(); //显示、

二、普通列表

final String[] items = new String[]{"语文","数学","英语","物理","化学"};   //列表项
            Builder alertdialog = new AlertDialog.Builder(this); 
            alertdialog.setTitle("你喜欢的课程").setItems(items, new DialogInterface.OnClickListener() {
                
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    Toast.makeText(AlertDialog_lianxi.this, items[which], Toast.LENGTH_SHORT).show();
                    
                }
            });
            alertdialog.create().show();                  //创建显示列表

 

三、单选列表

final String[] items_fruit = new String[]{"苹果","香蕉","橘子","西瓜","梨"};
            Builder alerdialog = new AlertDialog.Builder(this);
            //设置列表标题
            alerdialog.setTitle("你喜欢的水果");
            //设置单选列表
            alerdialog.setSingleChoiceItems(items_fruit, 0, new DialogInterface.OnClickListener() {
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    Toast.makeText(AlertDialog_lianxi.this, items_fruit[which], Toast.LENGTH_SHORT).show();
                    
                }
            });
            //设置取消按钮并且设置响应事件
            alerdialog.setNegativeButton("取消", new DialogInterface.OnClickListener() {
                
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    //取消按钮响应事件
                }
            });
            //添加确定按钮 并且设置响应事件
            alerdialog.setPositiveButton("确定", new DialogInterface.OnClickListener() {     
                
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    //确定按钮响应事件
                }
            });
            
            alerdialog.create().show();//创建显示列表

四、多选列表

final String[] items_fruit1 = new String[]{"苹果","香蕉","橘子","西瓜","梨"}; //设置项
            final boolean[] items_fruit_selected = new boolean[]{true,false,false,false,false};  
            Builder alerdialog1 = new AlertDialog.Builder(this);
            //设置列表标题
            alerdialog1.setTitle("你喜欢的水果");
            //设置多选列表
            alerdialog1.setMultiChoiceItems(items_fruit1, items_fruit_selected, new DialogInterface.OnMultiChoiceClickListener() {
                
                @Override
                public void onClick(DialogInterface dialog, int which, boolean isChecked) {
                    // TODO Auto-generated method stub
                    items_fruit_selected[which] = isChecked;
                }
            });
            //设置取消按钮并且设置响应事件
            alerdialog1.setNegativeButton("取消", new DialogInterface.OnClickListener() {
                
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    //取消按钮响应事件
                }
            });
            //添加确定按钮 并且设置响应事件,将选择的项显示
            alerdialog1.setPositiveButton("确定", new DialogInterface.OnClickListener() {     
                
                @Override
                public void onClick(DialogInterface dialog, int which) {
                    // TODO Auto-generated method stub
                    //确定按钮响应事件
                    StringBuilder stringBuilder = new StringBuilder();
                    for(int i=0;i<items_fruit_selected.length;i++)
                    {
                        if(items_fruit_selected[i] == true)
                        {
                            stringBuilder.append(items_fruit1[i]+"、");
                        }
                    }
                    Toast.makeText(AlertDialog_lianxi.this, stringBuilder.toString(), Toast.LENGTH_SHORT).show();
                }
            });
            
            alerdialog1.create().show();//创建显示列表

 

5、自定义布局对话框

对话框布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:gravity="center_horizontal"
    android:orientation="vertical" >
    
    <EditText 
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:editable="false"
        android:text="自定义对话框"/>
    
    <TextView 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="这里是自定义对话框的内容"
        android:textSize="20dp"
        />
    <Button 
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="确定"
        />
</LinearLayout>

package com.example.demo1;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

public class MainActivity extends Activity {
    private Button btn_openDialog;
    private View view;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn_openDialog = (Button) findViewById(R.id.id_submit);
        btn_openDialog.setOnClickListener(new OnClickListener() {
            
            @Override
            public void onClick(View v) {
                // TODO Auto-generated method stub
                view = LayoutInflater.from(MainActivity.this).inflate(R.layout.layout_dialog, null);
                AlertDialog dialog = new AlertDialog.Builder(MainActivity.this)
                                     .setTitle("主题")
                                     .setIcon(R.drawable.ic_launcher)
                                     .setView(view)
                                     .setPositiveButton("取消", new DialogInterface.OnClickListener() {
                                        
                                        @Override
                                        public void onClick(DialogInterface dialog, int which) {
                                            // TODO Auto-generated method stub
                                            
                                        }
                                    })
                                     .create();
                dialog.show();
            }
        });
        
        
    }

    

}