在TabActivity中无法使用bindService的解决方法
问题描述:
在单独Activity中startService bindService 都是正常的,把Activity放到TabActivity框架中以后bindService的ServiceConnection无法返回bind对象。结果多次测试发现 Google Android Issue中有这个缺陷,缺陷详细信息在这里(Google Android Issue 2483)解决方法:
Using getApplicationContext().bindService instead of just bindService on your activity solves the problem as it is using the higher level application context.需要先调用 getApplicationContext()获取其所属的Activity的上下文环境才能正常bindService,
即用this.getApplicationContext().bindService([args…])代替原来的bindService([args…]),否则将永远失败返回false,remote service 返回也为null。实例代码:
mServiceConnection = new ServiceConnection() {@Overridepublic void onServiceConnected(ComponentName componentName,IBinder binder) {Log.i(TAG, "onServiceConnected ");}@Overridepublic void onServiceDisconnected(ComponentName componentName) {Log.i(TAG, "onServiceDisconnected ");}};//在tabhost中必须用 this.getApplicationContext().bindServicethis.getApplicationContext().bindService(new Intent(this, HrmService.class), mServiceConnection, Service.BIND_AUTO_CREATE);