Android-AlertDialog各种对话框的用法

目标效果：

程序运行，显示图一的几个按钮，点击按钮分别显示图二到图六的对话框，点击对话框的某一项或者按钮，也会显示相应的吐司输出。

1.activity_main.xml页面存放五个按钮。

activity_main.xml页面：

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity" >
    <Button
        android:id="@+id/btnSure"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="10dp"
        android:text="确认对话框"/>
    <Button
        android:id="@+id/btnRadio"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="60dp"
        android:text="单选对话框"/>
    <Button
        android:id="@+id/btnCheck"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="110dp"
        android:text="多选对话框"/>
     <Button
        android:id="@+id/btnList"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="160dp"
        android:text="列表对话框"/>
      <Button
        android:id="@+id/btnMy"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginTop="210dp"
        android:text="自定义对话框"/>

</RelativeLayout>

2.新建dialog.xml页面，作为最后一个自定义对话框的布局页面。

dialog.xml页面：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:orientation="vertical" >

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal" >

        <EditText
            android:id="@+id/edInput"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="2" >

            <requestFocus />
        </EditText>

        <Button
            android:id="@+id/btnOk"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_weight="1"
            android:text="确定" />
    </LinearLayout>

    <ImageView
        android:id="@+id/ivPicture"
        android:layout_width="wrap_content"
        android:layout_height="280dp"
        android:src="@drawable/white" />

    <TextView
        android:id="@+id/textView1"
        android:layout_gravity="center"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="TextView" />

</LinearLayout>

3.MainActivity.java页面处理对话框的弹出及点击事件。

MainActivity.java页面：

package com.example.alertdialog;

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

public class MainActivity extends Activity implements OnClickListener {

	private Button btnSure,btnRadio,btnCheck,btnList,btnMy;
	private String[] sexList={"男","女"};//单选列表
	private String[] likeList={"篮球","足球","打游戏","听音乐","看电影"};//多选列表
	private String[] itemList={"项目经理","策划","测试","美工","程序员"};//列表

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		getId();//获取控件id
		click();//按钮绑定点击事件
	}

	/*获取控件id*/
	private void getId() {
		btnSure = (Button) findViewById(R.id.btnSure);
		btnRadio=(Button) findViewById(R.id.btnRadio);
		btnCheck=(Button) findViewById(R.id.btnCheck);
		btnList=(Button) findViewById(R.id.btnList);
		btnMy=(Button) findViewById(R.id.btnMy);
	}

	/*按钮绑定点击事件*/
	private void click() {
		btnSure.setOnClickListener(this);
		btnRadio.setOnClickListener(this);
		btnCheck.setOnClickListener(this);
		btnList.setOnClickListener(this);
		btnMy.setOnClickListener(this);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		getMenuInflater().inflate(R.menu.main, menu);
		return true;
	}

	@Override
	public void onClick(View view) {

		switch (view.getId()) {
		case R.id.btnSure:
			showDialog1();//确认对话框
			break;
		case R.id.btnRadio:
			showDialog2();//单选对话框
			break;
		case R.id.btnCheck:
			showDialog3();//多选对话框
			break;
		case R.id.btnList:
			showDialog4();
			break;
		case R.id.btnMy:
			showDialog5();
			break;
		}
	}

	/*确认对话框*/
	private void showDialog1() {
		AlertDialog.Builder builder=new AlertDialog.Builder(this);
		builder.setTitle("确认对话框");//设置标题
		builder.setIcon(R.drawable.ic_launcher);//设置图标
		builder.setMessage("确认对话框提示内容");//设置内容
		/*添加对话框中确定按钮和点击事件*/
		builder.setPositiveButton("确定",new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface arg0, int arg1) {
				Toast.makeText(MainActivity.this,"点击了确定按钮",Toast.LENGTH_SHORT).show();
			}
		});
		/*添加对话框中取消按钮和点击事件*/
		builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {

			@Override
			public void onClick(DialogInterface arg0, int arg1) {
				Toast.makeText(MainActivity.this,"点击了取消按钮",Toast.LENGTH_SHORT).show();
			}
		});
		AlertDialog dialog=builder.create();//获取dialog
		dialog.show();//显示对话框
	}

	/*单选对话框*/
	private void showDialog2() {
		AlertDialog.Builder builder=new AlertDialog.Builder(this);
		builder.setTitle("性别");//设置标题
		builder.setIcon(R.drawable.ic_launcher);//设置图标
		/*参数一位单选列表文字，参数二为默认第几个选中（-1默认不选中），参数三是创建监听器*/
		builder.setSingleChoiceItems(sexList,-1,new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				String sex=sexList[which];
				Toast.makeText(MainActivity.this,"这个人性别为"+sex, Toast.LENGTH_SHORT).show();
			}
		});
		/*添加对话框中取消按钮点击事件*/
		builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				dialog.dismiss();//关闭对话框
			}
		});
		AlertDialog dialog=builder.create();//获取dialog
		dialog.show();//显示对话框
	}

	/*多选对话框*/
	private void showDialog3() {
		AlertDialog.Builder builder=new AlertDialog.Builder(this);
		builder.setTitle("爱好");//设置标题
		builder.setIcon(R.drawable.ic_launcher);//设置图标
		/*参数同单选对话框一样，另外第二个参数默认不选中为null，而不是-1*/
		builder.setMultiChoiceItems(likeList,null,new DialogInterface.OnMultiChoiceClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which, boolean isChecked) {
				if(isChecked){
					Toast.makeText(MainActivity.this,"我喜欢"+likeList[which],Toast.LENGTH_SHORT).show();
				}else{
					Toast.makeText(MainActivity.this,"我不喜欢"+likeList[which],Toast.LENGTH_SHORT).show();
				}
			}
		});
		/*添加对话框中取消按钮点击事件*/
		builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				dialog.dismiss();//关闭对话框
			}
		});
		AlertDialog dialog=builder.create();//获取dialog
		dialog.show();//显示对话框
	}

	/*列表对话框*/
	private void showDialog4() {
		AlertDialog.Builder builder=new AlertDialog.Builder(this);
		builder.setTitle("部门列表");//设置标题
		builder.setIcon(R.drawable.ic_launcher);//设置图标
		builder.setItems(itemList,new DialogInterface.OnClickListener() {
			@Override
			public void onClick(DialogInterface dialog, int which) {
				Toast.makeText(MainActivity.this,"我点击了"+itemList[which],Toast.LENGTH_SHORT).show();
			}
		});
		AlertDialog dialog=builder.create();//获取dialog
		dialog.show();//显示对话框
	}

	/*自定义对话框*/
	private void showDialog5() {
		LayoutInflater inflater=LayoutInflater.from(this);
		View view=inflater.inflate(R.layout.dialog,null);//获取自定义布局
		AlertDialog.Builder builder=new AlertDialog.Builder(this);
		builder.setTitle("自定义对话框");//设置标题
		builder.setIcon(R.drawable.ic_launcher);//设置图标
		builder.setView(view);//设置自定义样式布局到对话框
		AlertDialog dialog=builder.create();//获取dialog
		dialog.show();//显示对话框
	}

}

4.运行就出现目标效果了。