本文实例讲述了Android编程之页面切换测试。分享给大家供大家参考。具体分析如下:
一、软件平台:
win7 + eclipse + sdk
二、设计思路:
两个页面:mian和ok,每个页面上有一个按键,点击则可以互相切换
三、源代码:
main.xml源代码:
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<? 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"
>
< TextView
android:layout_width = "fill_parent"
android:layout_height = "wrap_content"
android:text = "@string/hello"
/>
< Button android:id = "@+id/button1" android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "下一页面 " ></ Button >
</ LinearLayout >
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ok.xml源代码:
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<? 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" >
< Button android:layout_width = "wrap_content" android:layout_height = "wrap_content" android:text = "上一页面 " android:id = "@+id/button1" ></ Button >
</ LinearLayout >
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makechoice源代码:
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package com.makechoice;
import android.app.Activity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
public class makechoice extends Activity
{
/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState)
{
super .onCreate(savedInstanceState);
setContentView(R.layout.main);
Button btn = (Button)findViewById(R.id.button1);
btn.setOnClickListener( new Button.OnClickListener()
{
@Override
public void onClick(View v)
{
jump2ok();
}
});
}
//跳到ok页面
public void jump2ok()
{
setContentView(R.layout.ok);
//当有按键按下跳到main页面
Button btn = (Button)findViewById(R.id.button1);
btn.setOnClickListener( new Button.OnClickListener()
{
@Override
public void onClick(View v)
{
jump2main();
}
});
}
//跳到main页面
public void jump2main()
{
setContentView(R.layout.main);
//当有按键按下跳到ok页面
Button btn = (Button)findViewById(R.id.button1);
btn.setOnClickListener( new Button.OnClickListener()
{
@Override
public void onClick(View v)
{
jump2ok();
}
});
}
}
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四、运行效果图:
五、注意:
类R中存放的ID号为当前页面的ID号,所以findViewById函数捕获的控件也为当前页面的控件
希望本文所述对大家的Android程序设计有所帮助。