android使用全域變數

一開始我是用static來做全域，後來在網上看見老外有一個很好的辦法 public class MyApp extends Application { private Integer[] state; public Integer[] getState() { return state; } public void setState(Integer[] state) { this.state = state; } @Override public void onCreate() { // TODO Auto-generated method stub super.onCreate(); setState(we); }//一定要在onCreate方法裡給變數賦值 public Integer[] we=new Integer[]{     R.drawable.b_0,R.drawable.b_1,R.drawable.b_2,     R.drawable.b_3,R.drawable.b_4,R.drawable.b_5 }; } 在所需要的activity中使用 MyApp appState = (MyApp)getApplicationContext(); Integer[] we = appState.getState(); 來擷取，最後一步別忘了在manifest中的application標籤中添加 android:name=".MyApp"(這兒不是建立<application></application>)