Question

我的应用程序每秒都会获得一次GPS更新。它还可以每秒获取一次Wifi连接的RSSI值。我面临的问题是，BroadcastReceiver永远不会被调用。有人可以指出我做错了什么。我查看了很多stackoverflow问题以及其他网站，但我无法弄清楚我做错了什么。我的代码如下：

final String locAction = "com.android.ping.STARTGPS";
PendingIntent pIntent;

@Override
public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    Intent intent = new Intent(locAction);
    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);

    if (!isGPSEnabled) {
        Log.i(TAG,"PING: GPS not enabled");
    } else {
        Log.i(TAG,"PING: GPS enabled");
        pIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT);
        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, MIN_time_BW_Updates, MIN_Distance_Change_For_Updates, pIntent);
        registerReceiver(myWifiReceiver, new IntentFilter(locAction));
        Log.i(TAG,"PING: adding GPS status listener");
    }
}

广播接收器：

protected BroadcastReceiver myWifiReceiver = new BroadcastReceiver() 
{
    @Override
    public void onReceive(Context context, Intent intent){
        Log.i(TAG, "PING: inside onReceive");
        if (intent.getAction().equals(locAction)){
            String locationKey = LocationManager.KEY_LOCATION_CHANGED;
            Location location = (Location) intent.getExtras().get(locationKey);
            Log.i(TAG, "PING: location is " + location.getLatitude() + ", " + location.getLongitude());
            setLocation(location.getLatitude(), location.getLongitude());

            try {
                WifiInfo(); //Calls the function that gets the RSSI
            } catch (IOException e) {
                e.printStackTrace();
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
    }
};

意图未注册：

@Override
protected void onStop() {
    super.onStop();
    locationManager.removeUpdates(pIntent);
    unregisterReceiver(myWifiReceiver);
}

我的清单文件，我注册了BroadcastReceiver：

<receiver android:name="PingActivity" >
        <intent-filter>
            <action android:name="com.android.ping.STARTGPS" />
        </intent-filter>
</receiver>

编辑1：我还必须补充一点，我在应用程序中硬编码IP地址（现在）并将其部署在2个不同的设备上。根据IP地址，设备启动服务器或客户端线程。在我注册broadcastReceiver

之后，这部分代码就紧随其后

Answer 1

请注意，您在清单中使用名称broadcast声明PingActivity，并且您的实现类名为myWifiReceiver，您必须将其重命名为PingActivity，并且将你的广播分开。

BroadcastReceiver未调用

1 个答案: