Android编程8:页面切换测试

Android编程8:页面切换测试

本文博客链接:http://blog.youkuaiyun.com/jdh99,作者:jdh,转载请注明.

软件平台:win7 + eclipse + sdk

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

源代码:

main.xml源代码:

<?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:

<?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:

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(); } }); } }
运行效果图:

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