关闭屏幕后，android 几分钟后关闭套接字连接

Question

我正在使用 socket-io 实现一个实时打车应用程序，在驱动程序应用程序的实现中，我们正在处理套接字问题。即使用户关闭设备屏幕，我也只想保持套接字连接。 android 是否有任何特定权限？

有什么关于保持套接字活动的建议吗？

共享我的权限列表。

<uses-permission android:name="android.permission.DISABLE_KEYGUARD" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.CAMERA" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.CALL_PHONE" />
<uses-permission android:name="android.permission.VIBRATE" />
<uses-permission android:name="android.permission.WAKE_LOCK" />
<uses-permission android:name="android.permission.FLASHLIGHT"/>
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES"/>
<uses-permission android:name="ACCESS_WIFI_STATE"/>
<uses-permission android:name="ACCESS_NETWORK_STATE"/>
<uses-permission android:name="READ_PHONE_STATE"/>
<uses-permission android:name="SYSTEM_ALERT_WINDOW"/>
<uses-permission android:name="RECEIVE_BOOT_COMPLETED"/>
<uses-permission android:name="REQUEST_IGNORE_BATTERY_OPTIMIZATIONS"/>

我的套接字连接和套接字处理代码如下。 对于连接：

    public Observable<SocketConnection.State> connect(String customerId) {
    if (mUserId == null || mUserType == null) {
        return null;
    }
    if (mAddress == null) {
        mAddress = Constants.DEFAULT_SOCKET_ADDRESS;
    }
    mNamespace = Constants.DEFAULT_SOCKET_NAMESPACE;
    if (customerId != null) {
        mNamespace = Constants.CUSTOMER_SOCKET_NAMESPACE;
    }
    if (socket != null) {
        socket.disconnect();
        removeSocketListeners();
    }

    try {
        socket = IO.socket(mAddress + mNamespace, getOptions(customerId));
        setSocketListeners();
        startInternalPong();
    } catch (URISyntaxException e) {
        e.printStackTrace();
    }
    socket.connect();
    return mConnectionObservable;
}

断开连接：

public Observable<SocketConnection.State> disconnect() {

    if (socket != null) {
        removeSocketListeners();
        socket.disconnect();
    }
    return mConnectionObservable;
}

连接观察者：

    private Observable<SocketConnection.State> mConnectionObservable = Observable.create(new ObservableOnSubscribe<SocketConnection.State>() {

    @Override
    public void subscribe(final ObservableEmitter<SocketConnection.State> observableEmitter) throws Exception {
        mConnectionObservableEmitter = observableEmitter;

        observableEmitter.setCancellable(new Cancellable() {
            @Override
            public void cancel() throws Exception {
                mConnectionObservableEmitter = null;
            }
        });
    }

});

Answer 1

你应该看看 Android Bacgrkound Services。

另请参考这些答案：

• Android socket connect in background