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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="" builder.setpositivebutton("确定",="" "你的职业:"+item[mark],="" 自定义对话框="" r.id.btn_button5:="" layoutinflater="" inflater="LayoutInflater.from(this);" view="" null);="" builder.settitle("自定义对话框");="" builder.setview(view);="" builder.setneutralbutton("普通按钮",="" toast.maketext(mainactivity.this,"我是自定义的对话框哦",toast.length_short).show();="" 布局文件<="" pre=""><p>
</p><p>activity_main.xml</p><p>
</p><pre class="brush:java;"><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><button android:id="@+id/btn_button2" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="列表对话框"></button><button android:id="@+id/btn_button3" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="多选对话框"></button><button android:id="@+id/btn_button4" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="单选对话框"></button><button android:id="@+id/btn_button5" android:layout_width="fill_parent" android:layout_height="wrap_content" android:text="自定义对话框"></butt