网络状态监听

超、凢脫俗 2023-10-03 21:16 20阅读 0赞

/** 初始化网络监听 */
        private void initNetworkStatus() {
            ConnectivityManager connMgr = (ConnectivityManager) CommonUtils.getApp().getSystemService(Context.CONNECTIVITY_SERVICE);
            if (connMgr != null) {
                //这里只监听了WIFI和蜂窝网络，正常APP够用了，如果有其他要求，可以增加
                NetworkRequest nr = new NetworkRequest.Builder()
                        .addTransportType(NetworkCapabilities.TRANSPORT_WIFI)
                        .addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR)
                        .build();
                connMgr.registerNetworkCallback(nr, new NetworkStatusCallback(CommonUtils.getApp()));
            }
        }

import android.content.Context;
    import android.net.ConnectivityManager;
    import android.net.LinkProperties;
    import android.net.Network;
    import android.net.NetworkCapabilities;
    import android.net.NetworkInfo;
    import android.util.Log;
    
    import com.blankj.utilcode.util.ToastUtils;
    
    /**
     * 网络连接断开监听类
     */
    public class NetworkStatusCallback extends ConnectivityManager.NetworkCallback {
    
        private static final String TAG = "NetworkStatusCallback";
    
        private Context context;
        private ConnectivityManager manager;
    
        public NetworkStatusCallback(Context context) {
            this.context = context;
            this.manager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        }
    
        @Override
        public void onAvailable(Network network) {
            super.onAvailable(network);
            //调用判断 网络可用
            isNetworkEnable();
        }
    
        @Override
        public void onLosing(Network network, int maxMsToLive) {
            super.onLosing(network, maxMsToLive);
        }
    
        @Override
        public void onLost(Network network) {
            super.onLost(network);
            //调用判断 网络掉线
            isNetworkEnable();
        }
    
        @Override
        public void onUnavailable() {
            super.onUnavailable();
        }
    
        @Override
        public void onCapabilitiesChanged(Network network, NetworkCapabilities networkCapabilities) {
            super.onCapabilitiesChanged(network, networkCapabilities);
        }
    
        @Override
        public void onLinkPropertiesChanged(Network network, LinkProperties linkProperties) {
            super.onLinkPropertiesChanged(network, linkProperties);
        }
    
        /**
         * 为什么每次都要判断，原因是WIFI和蜂窝网络都可用时，如果只是断掉WIFI，也会调用onLoss方法，所以改为只判断当前可用的，无论是哪个
         */
        private void isNetworkEnable() {
            NetworkInfo active = manager.getActiveNetworkInfo();
            boolean result = null != active && active.getState() == NetworkInfo.State.CONNECTED;
            KLog.i("调试信息", "网络连接状态: " + result);
            //下面根据结果，发送事件或者做业务操作
            if (null != active && active.getState() == NetworkInfo.State.CONNECTED) {
                ClusomModule.getInstance().login();
            } else {
                ToastUtils.showShort("当前为离线状态,不可用");
            }
        }
    
    
    }