广播接收器和内存泄漏

Question

在我的应用程序中；我想在我的所有服务中接收网络连接更改，因为我必须在本地和服务器上管理数据库。

我已将 BaseConnectivityService 的连接接收器更改如下：

public abstract class BaseConnectivityService extends IntentService {

    private ConnectivityManager mConnectivityManager;

    public BaseConnectivityService(String name) {
        super(name);
    }

    @Override
    public void onCreate() {
        super.onCreate();
        mConnectivityManager = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);
        registerReceivers();
    }

    @Override
    public void onDestroy() {
        unregisterReceivers();
        mConnectivityManager = null;
        super.onDestroy();
    }

    private void registerReceivers() {
        IntentFilter connectivityIntentFilter = new IntentFilter(ConnectivityManager.CONNECTIVITY_ACTION);
        registerReceiver(mConnectivityChangeReceiver, connectivityIntentFilter);
    }

    private void unregisterReceivers() {
        unregisterReceiver(mConnectivityChangeReceiver);
    }

    /**
     * will be invoked when network connectivity has been changed and network is in connected state
     */
    protected abstract void onNetworkConnected();

    /**
     * will be invoked when network connectivity has been changed and network is NOT in connected state
     */
    protected abstract void onNetworkDisconnected();

    /**
     * checks whether network is available and is in connected state
     *
     * @return true if network is connected; false otherwise
     */
    protected final boolean isNetworkConnected() {
        NetworkInfo activeNetworkInfo = mConnectivityManager.getActiveNetworkInfo();
        return activeNetworkInfo != null && activeNetworkInfo.isAvailable() && activeNetworkInfo.isConnected();
    }


    private final BroadcastReceiver mConnectivityChangeReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {
            if (isNetworkConnected()) {
                onNetworkConnected();
            } else {
                onNetworkDisconnected();
            }
        }
    };
}

现在，如果我用 BaseConnectivityService 扩展我的所有服务；是否会导致内存泄漏，因为系统会将服务保留在内存中以通知连接更改？

我已阅读this thread；这是有点类似的问题。正如马克·墨菲 (Mark Murphy) 所写：

You will leak memory, as your BroadcastReceiver will keep the component in RAM (even if it was destroyed) until such time as Android terminates the process.

是否适用于我的场景？如果是，避免内存泄漏和获得网络连接更改通知的好的解决方案是什么？

Answer 1

查看同一线程中的最后一个响应。您可以从服务 class 注册和注销广播接收器。如果绑定Service life cycle，就没有泄漏的机会。

广播接收器和内存泄漏

Broadcast receiver and memory leaks

java

android

memory-leaks

android-service

android-broadcastreceiver