Android动画效果Widget（wifi）

实现和飞行模式widget类似，只贴出不同代码： 

public class WifiWidget extends AppWidgetProvider {

 private final static String SET_WIFI_ACTION = "com.archermind.wifi.widget.set_wifi";
 private static final int START_ANIMATION = 0;
 private static final int END_ANIMATION = 1;
 private static WifiManager mWifiManager;
 private static int wifiState;
 private static boolean mRunAnimation = false;
 private static RemoteViews mRemoteViews;

 private static Context mContext;
 private int [] mDrawable = {
   R.drawable.settings_icon_wifi_01,
   R.drawable.settings_icon_wifi_02,
   R.drawable.settings_icon_wifi_03
 };

 @Override
 public void onUpdate(Context context, AppWidgetManager appWidgetManager,
   int[] appWidgetIds) {
  if(mContext == null){
   mContext = context;
  }
  super.onUpdate(context, appWidgetManager, appWidgetIds);
  mWifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);
  mRemoteViews = new RemoteViews(context.getPackageName(), R.layout.main);
  wifiState = mWifiManager.getWifiState();
  if(wifiState == WifiManager.WIFI_STATE_DISABLED){
   mRemoteViews.setImageViewResource(R.id.settings_wifi_switch, R.drawable.settings_switch_off);
  }else if(wifiState == WifiManager.WIFI_STATE_ENABLED){
   mRemoteViews.setImageViewResource(R.id.settings_wifi_switch, R.drawable.settings_switch_on);
  }
  Intent intentClick = new Intent(SET_WIFI_ACTION);
        PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0,
                intentClick, 0);
        mRemoteViews.setOnClickPendingIntent(R.id.settings_wifi, pendingIntent);
  for(int i=0; i<appWidgetIds.length; i++){
   appWidgetManager.updateAppWidget(appWidgetIds[i], mRemoteViews);
  }
 }


 @Override
 public void onReceive(Context context, Intent intent) {
  super.onReceive(context, intent);
  Log.e("method", "onReceive");
  if(intent.getAction().equals(SET_WIFI_ACTION)){
   wifiState = mWifiManager.getWifiState();
   Log.e("==", "==");
   Log.e("wifistate", ""+wifiState);
   if(wifiState == WifiManager.WIFI_STATE_DISABLED){
    mWifiManager.setWifiEnabled(true);
    Log.i("open", "open");
   }else if(wifiState == WifiManager.WIFI_STATE_ENABLED){
    mWifiManager.setWifiEnabled(false);
    Log.i("close", "close");
   }
  }else if(intent.getAction().equals(WifiManager.WIFI_STATE_CHANGED_ACTION)){
   Log.e("change", "change");
   handleWifiStateChanged(intent.getIntExtra(
     WifiManager.EXTRA_WIFI_STATE,WifiManager.WIFI_STATE_UNKNOWN));
  }
 }
 //判断wifi状态
 private void handleWifiStateChanged(int state){
  Message msg = mHandler.obtainMessage(START_ANIMATION);
  msg.arg1 = 0;
  switch(state){
  case WifiManager.WIFI_STATE_DISABLING:
   Log.e("state", "WIFI_STATE_DISABLING");
   mRunAnimation = true;
   mHandler.sendMessage(msg);
   break;
  case WifiManager.WIFI_STATE_DISABLED:
   Log.e("state", "WIFI_STATE_DISABLED");
   mRunAnimation = false;
   mHandler.sendEmptyMessage(END_ANIMATION);
   break;
  case WifiManager.WIFI_STATE_ENABLING:
   Log.e("state", "WIFI_STATE_ENABLING");
   mRunAnimation = true;
   mHandler.sendMessage(msg);
   break;
  case WifiManager.WIFI_STATE_ENABLED:
   Log.e("state", "WIFI_STATE_ENABLED");
   mRunAnimation = false;
   mHandler.sendEmptyMessage(END_ANIMATION);
   break;
  default:
   Log.e("state", "WIFI_STATE_UNKNOW");
  }
 }

 private Handler mHandler = new Handler(){

  @Override
  public void handleMessage(Message msg) {
   super.handleMessage(msg);
   AppWidgetManager appWidgetManger = AppWidgetManager
   .getInstance(mContext);
   int[] appIds = appWidgetManger.getAppWidgetIds(new ComponentName(
           mContext, WifiWidget.class));
   if(msg.what == START_ANIMATION){
    if(!mRunAnimation){
     return ;
    }
    mRemoteViews.setImageViewResource(R.id.settings_wifi_state,mDrawable[msg.arg1]);
    appWidgetManger.updateAppWidget(appIds, mRemoteViews);
    Message message = mHandler.obtainMessage(START_ANIMATION);
    message.arg1 = (msg.arg1 + 1) % 3;
    mHandler.sendMessageDelayed(message, 200);
   }else if(msg.what == END_ANIMATION){
    wifiState = mWifiManager.getWifiState();
    mRemoteViews.setImageViewResource(R.id.settings_wifi_state,mDrawable[2]);
    if(wifiState == WifiManager.WIFI_STATE_ENABLED){
     mRemoteViews.setImageViewResource(R.id.settings_wifi_switch,R.drawable.settings_switch_on);
    }else if(wifiState == WifiManager.WIFI_STATE_DISABLED){
     mRemoteViews.setImageViewResource(R.id.settings_wifi_switch,R.drawable.settings_switch_off);
    }
    appWidgetManger.updateAppWidget(appIds, mRemoteViews);
   }
  }
 };
}