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 > |
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 > |
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(); } }); } } |
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。