能開關開關開關的是開關 ToggleButton

Button都長得差不多，這個的特色就是有個螢光棒，所以還蠻適合當開關用，基礎課程，簡單的介紹一下吧，透過ToggleButton來變更背景吧!

1. 建立專案

2. 加個ToggleButton & relativeLayout指派ID

3. 隨便給的名字吧

4. /res/values/strings.xml

5. Source Code

package com.example.ex007; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.widget.CompoundButton; import android.widget.RelativeLayout; import android.widget.ToggleButton; import android.widget.CompoundButton.OnCheckedChangeListener; public class MainActivity extends Activity {      private ToggleButton tb;      private RelativeLayout rl;      @Override      protected void onCreate(Bundle savedInstanceState) {          super.onCreate(savedInstanceState);          setContentView(R.layout.activity_main);          tb = (ToggleButton) MainActivity.this.findViewById(R.id.toggleButton1);          rl = (RelativeLayout) MainActivity.this.findViewById(R.id.relativeLayout1);                   tb.setOnCheckedChangeListener(new OnCheckedChangeListener(){               @Override               public void onCheckedChanged(CompoundButton buttonView,                        boolean isChecked) {                   // TODO Auto-generated method stub                   if (isChecked) {                        rl.setBackgroundColor(android.graphics.Color.BLACK);                   } else {                        rl.setBackgroundColor(android.graphics.Color.WHITE);                   };               }          });               }      @Override      public boolean onCreateOptionsMenu(Menu menu) {          // Inflate the menu; this adds items to the action bar if it is present.          getMenuInflater().inflate(R.menu.main, menu);          return true;      } }

6. run一下吧，一開始是關

7. 現在是開

就是這麼簡單，isChecked來判斷，明天是Blue Monday，洗洗睡了!!!

範例 : EX007