軟件平台:Windows 7 + Eclipse + SDK
設計思路:
兩個頁面:mian和ok,每個頁面上有一個按鍵,點擊則可以互相切換
源代碼:
main.xml源代碼:
- <?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="下一頁面 "></Button>
- </LinearLayout>
ok.xml源代碼:
- <?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="上一頁面 " android:id="@+id/button1"></Button>
- </LinearLayout>
makechoice源代碼:
- 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頁面
- public void jump2ok()
- {
- setContentView(R.layout.ok);
- //當有按鍵按下跳到main頁面
- Button btn = (Button)findViewById(R.id.button1);
- btn.setOnClickListener(new Button.OnClickListener()
- {
- @Override
- public void onClick(View v)
- {
- jump2main();
- }
- });
- }
-
- //跳到main頁面
- public void jump2main()
- {
- setContentView(R.layout.main);
- //當有按鍵按下跳到ok頁面
- Button btn = (Button)findViewById(R.id.button1);
- btn.setOnClickListener(new Button.OnClickListener()
- {
- @Override
- public void onClick(View v)
- {
- jump2ok();
- }
- });
- }
- }
運行效果圖:
注意:
類R中存放的ID號為當前頁面的ID號,所以findViewById函數捕獲的控件也為當前頁面的控件