Android监听Gps设置变化方法一

private final ContentObserver mGpsMonitor = new ContentObserver(null) {
@Override
public void onChange(boolean change) {

super.onChange(change);

boolean enabled = mLocationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
Message msg = handler.obtainMessage();
msg.what = 0x123;
msg.obj = enabled;
handler.sendMessage(msg);
}

};

protected void onStart() {

///注册观察者监听数据库状态改变
        getContentResolver().registerContentObserver(
                        Settings.Secure.getUriFor(Settings.System.LOCATION_PROVIDERS_ALLOWED),false,mGpsMonitor);
        super.onStart();
    };

@Override
    protected void onStop() {
        super.onStop();
        getContentResolver().unregisterContentObserver(mGpsMonitor);////取消注册
    }