通过配置文件来完成列表对话框的一种显示
在values文件夹中新建一个fruit_data.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string-array name="fruit_lables">
<item >苹果</item>
<item >雪梨</item>
<item >桃子</item>
</string-array>
</resources>
在main.xml中
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="horizontal" >
<TextView
android:id="@+id/mych"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text=""/>
<Button
android:id="@+id/mybut"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="请选择水果"/>
</LinearLayout>
在MyDialogDemo.java程序中
package com.tarena.dialog;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageButton;
import android.widget.TextView;
public class MyDialogDemo extends Activity {
private Button mybut = null; //定义按钮
private TextView mych = null; //定义文本
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
super.setContentView(R.layout.main); //调用布局管理器
this.mybut = (Button) super.findViewById(R.id.mybut); //取得按钮
this.mych = (TextView) super.findViewById(R.id.mybut); //取得文本
this.mybut.setOnClickListener(new OnClickListenerImpl()); //设置事件类
}
private class OnClickListenerImpl implements OnClickListener{
public void onClick(View view) {
Dialog dialog = new AlertDialog.Builder(MyDialogDemo.this)
.setIcon(R.drawable.ic_launcher)
.setTitle("请选择您喜欢吃的水果")
.setNegativeButton("取消", new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
}
}).setItems(R.array.fruit_lables, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
MyDialogDemo.this.mych.setText("您选择的水果是:" +
MyDialogDemo.this.getResources()
.getStringArray(R.array.fruit_lables)[which]);
}
}).create();
dialog.show();
}
}
}