Android常用的AlertDialog对话框及自定义对话框

常用的dialog有确认对话框，单选按钮对话框，多选按钮对话框，复选按钮对话框另外还有自定义的对话框

alertdialog的常用方法

settitle:为对话框设置标题

setmessage:为对话框设置内容

seticon:为对话框设置图标

setitems设置对话框要显示的list

setmultichoiceitems:一般用于复选框显示

setsinglechoiceitem:，设置单选按钮

setneutralbutton:普通按钮

setpositivebutton:添加确定按钮

setnegativebutton:添加取消按钮

setview:设置自定义样式

下面通过一个实例来了解这些方法

这是运行结果：

mainactivity.class

package com.example.alertdialog; 
import android.r.bool; 
import android.os.bundle; 
import android.app.activity; 
import android.app.alertdialog; 
import android.app.alertdialog.builder; 
import android.app.dialog; 
import android.content.dialoginterface; 
import android.content.pm.labeledintent; 
import android.view.layoutinflater; 
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 button1; 
 private button button2; 
 private button button3; 
 private button button4; 
 private button button5; 
 private int mark=0; 
 private string item[] = { "学生", "工人", "教师", "农民" }; 
 private string multchoice[]={"旅游","电影","运动","读书"}; 
 @override 
 protected void oncreate(bundle savedinstancestate) { 
 super.oncreate(savedinstancestate); 
 setcontentview(r.layout.activity_main); 
 button1 = (button) findviewbyid(r.id.btn_button1); 
 button2 = (button) findviewbyid(r.id.btn_button2); 
 button3 = (button) findviewbyid(r.id.btn_button3); 
 button4 = (button) findviewbyid(r.id.btn_button4); 
 button5 = (button) findviewbyid(r.id.btn_button5); 
 button1.setonclicklistener(this); 
 button2.setonclicklistener(this); 
 button3.setonclicklistener(this); 
 button4.setonclicklistener(this); 
 button5.setonclicklistener(this); 
 } 
 @override 
 public void onclick(view v) { 
 // todo auto-generated method stub 
 switch (v.getid()) { 
 //确认对话框 
 case r.id.btn_button1: { 
 alertdialog.builder builder = new builder(this); 
 builder.seticon(r.drawable.ic_launcher); 
 builder.settitle("确认对话框"); 
 builder.setmessage("确认退出？"); 
 builder.setpositivebutton("确定", 
  new dialoginterface.onclicklistener() { 
  @override 
  public void onclick(dialoginterface dialog, int which) { 
  // todo auto-generated method stub 
  toast.maketext(mainactivity.this, "你单击了确定按钮", 
   toast.length_short).show(); 
  } 
  }); 
 builder.setnegativebutton("取消", 
  new dialoginterface.onclicklistener() { 
  @override 
  public void onclick(dialoginterface dialog, int which) { 
  // todo auto-generated method stub 
  toast.maketext(mainactivity.this, "你单击了取消按钮", 
   toast.length_short).show(); 
  } 
  }); 
 builder.create(); 
 builder.show(); 
 break; 
 } 
 //列表对话框 
 case r.id.btn_button2: { 
 alertdialog.builder builder = new builder(this); 
 builder.seticon(r.drawable.ic_launcher); 
 builder.settitle("职业"); 
 builder.setitems(item, new dialoginterface.onclicklistener() { 
 @override 
 public void onclick(dialoginterface dialog, int which) { 
  // todo auto-generated method stub 
  toast.maketext(mainactivity.this, "你的职业是" + item[which], 
  toast.length_short).show(); 
 } 
 }); 
 builder.create(); 
 builder.show(); 
 break; 
 } 
 //多选对话框 
 case r.id.btn_button3: { 
 final boolean choose[]=new boolean[multchoice.length]; 
 alertdialog.builder builder = new builder(this); 
 builder.seticon(r.drawable.ic_launcher); 
 builder.settitle("爱好"); 
 builder.setmultichoiceitems(multchoice, null, new dialoginterface.onmultichoiceclicklistener() { 
 @override 
 public void onclick(dialoginterface dialog, int which, boolean ischecked) { 
  // todo auto-generated method stub 
  choose[which]=ischecked; 
 } 
 }); 
 builder.setpositivebutton("确认", new dialoginterface.onclicklistener() { 
 @override 
 public void onclick(dialoginterface dialog, int which) { 
  // todo auto-generated method stub 
  string result=""; 
  for(int i=0;i<multchoice.length;i++){ 
  if(choose[i]){ 
  result+=multchoice[i]+" "; 
  } 
  } 
  toast.maketext(mainactivity.this, "你的爱好["+result+"]", toast.length_short).show(); 
 } 
 }); 
 builder.create(); 
 builder.show(); 
 break; 
 } 
 //单选对话框 
 case r.id.btn_button4: { 
 mark=0; 
 alertdialog.builder builder = new builder(this); 
 builder.seticon(r.drawable.ic_launcher); 
 builder.settitle("职业"); 
 builder.setsinglechoiceitems(item, 0, new dialoginterface.onclicklistener() { 
 @override 
 public void onclick(dialoginterface dialog, int which) { 
  // todo auto-generated method stub 
  mark=which; 
 } 
 }); 
 builder.setpositivebutton("确定", 
  new dialoginterface.onclicklistener() { 
  @override 
  public void onclick(dialoginterface dialog, int which) { 
  // todo auto-generated method stub 
  toast.maketext(mainactivity.this, "你的职业:"+item[mark], toast.length_short).show(); 
  } 
  }); 
 builder.create(); 
 builder.show(); 
 break; 
 } 
 //自定义对话框 
 case r.id.btn_button5: { 
 layoutinflater inflater=layoutinflater.from(this); 
 view view=inflater.inflate(r.layout.item, null); 
 alertdialog.builder builder = new builder(this); 
 builder.seticon(r.drawable.ic_launcher); 
 builder.settitle("自定义对话框"); 
 builder.setview(view); 
 builder.setneutralbutton("普通按钮", new dialoginterface.onclicklistener() { 
 @override 
 public void onclick(dialoginterface dialog, int which) { 
  // todo auto-generated method stub 
  toast.maketext(mainactivity.this,"我是自定义的对话框哦",toast.length_short).show(); 
 } 
 }); 
 builder.create(); 
 builder.show(); 
 break; 
 } 
 } 
 } 
} 

布局文件

activity_main.xml

<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" 
android:paddingbottom="@dimen/activity_vertical_margin" android:paddingleft="@dimen/activity_horizontal_margin" android:paddingright="@dimen/activity_horizontal_margin" android:paddingtop="@dimen/activity_vertical_margin" 
 tools:context=".mainactivity" > 
 <linearlayout 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:orientation="vertical" > 
 <button 
 android:id="@+id/btn_button1" 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:text="确认对话框" /> 
 <button 
 android:id="@+id/btn_button2" 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:text="列表对话框" /> 
 <button 
 android:id="@+id/btn_button3" 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:text="多选对话框" /> 
 <button 
 android:id="@+id/btn_button4" 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:text="单选对话框" /> 
 <button 
 android:id="@+id/btn_button5" 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:text="自定义对话框" /> 
 </linearlayout> 
</relativelayout> 

自定义的对话框布局文件

item.xml

<?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:orientation="vertical" > 
 <imageview 
 android:layout_width="wrap_content" 
 android:layout_height="wrap_content" 
 android:scaletype="fitcenter" 
 android:src="@drawable/icon" 
 /> 
 <textview 
 android:layout_width="fill_parent" 
 android:layout_height="wrap_content" 
 android:text="我是自定义的对话框" 
 /> 
</linearlayout> 

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