本文实例讲述了Android单选按钮对话框用法。分享给大家供大家参考。具体如下：
main.xml布局文件
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent">
<EditText android:text=""
android:id="@+id/editText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:editable="false"
android:cursorVisible="false" />
<Button android:text="显示单选对话框"
android:id="@+id/button"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
</LinearLayout>
array.xml数组
<?xml version="1.0" encoding="utf-8"?> <resources> <string-array name="hobby"> <item>游泳</item> <item>打篮球</item> <item>登山</item> </string-array> </resources>
AlertDialog类
package com.ljq.dialog;
import android.app.Activity;
import android.app.Dialog;
import android.app.AlertDialog.Builder;
import android.content.DialogInterface;
import android.content.DialogInterface.OnClickListener;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
public class AlertDialog extends Activity {
private EditText editText;
private final static int DIALOG=1;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
editText=(EditText)findViewById(R.id.editText);
Button button = (Button) findViewById(R.id.button);
button.setOnClickListener(new View.OnClickListener() {
public void onClick(View v) {
// 显示对话框
showDialog(DIALOG);
}
});
}
/**
* 创建单选按钮对话框
*/
@Override
protected Dialog onCreateDialog(int id) {
Dialog dialog=null;
switch (id) {
case DIALOG:
Builder builder=new android.app.AlertDialog.Builder(this);
//设置对话框的图标
builder.setIcon(R.drawable.header);
//设置对话框的标题
builder.setTitle("单选按钮对话框");
//0: 默认第一个单选按钮被选中
builder.setSingleChoiceItems(R.array.hobby, 0, new OnClickListener(){
public void onClick(DialogInterface dialog, int which) {
String hoddy=getResources().getStringArray(R.array.hobby)[which];
editText.setText("您选择了： "+hoddy);
}
});
//添加一个确定按钮
builder.setPositiveButton(" 确 定 ", new DialogInterface.OnClickListener(){
public void onClick(DialogInterface dialog, int which) {
}
});
//创建一个单选按钮对话框
dialog=builder.create();
break;
}
return dialog;
}
}
运行结果：
希望本文所述对大家的Android程序设计有所帮助。
