Android 监测网络切换

概述//Activity注册NetMonitornetMonitor=newNetMonitor();netMonitor.start(this.getApplicationContext());netMonitor.addListener(this);//网络监听的回调@OverridepublicvoidonNetworkChange(){Log.e("TAG","回调");}//注册动态广播实时监听publicclassN

//Activity注册NetMonitor netMonitor = new NetMonitor();netMonitor.start(this.getApplicationContext());netMonitor.addListener(this);

//网络监听的回调

@OverrIDe public voID onNetworkChange() { Log.e("TAG", "回调"); }

//注册动态广播实时监听

public class NetMonitor {    private List<OnNetworkchangelistener> onNetworkchangelisteners;    private NetbroadcastReceiver netbroadcastReceiver;    private Context context;    private ExecutorService executor = Executors.newCachedThreadPool();    private Runnable netChangeRunnable = new Runnable() {        @OverrIDe        public voID run() {            notifyNetworkChange();        }    };    public NetMonitor() {        onNetworkchangelisteners = new ArrayList<>();    }    /**     * 开启网络监听     */    public voID start(Context context) {        Context applicationContext = context.getApplicationContext();        this.context = applicationContext;        netbroadcastReceiver = new NetbroadcastReceiver();        IntentFilter filter = new IntentFilter();        //设置action为CONNECTIVITY_ACTION        filter.addAction(ConnectivityManager.CONNECTIVITY_ACTION);        //动态注册广播        applicationContext.registerReceiver(netbroadcastReceiver, filter);    }    /**     * 停止网络监听     */    public voID stop() {        if (context == null) {            return;        }        if (netbroadcastReceiver != null) {            context.unregisterReceiver(netbroadcastReceiver);        }        context = null;    }    /**     * 注册监听     */    public voID addListener(OnNetworkchangelistener Listener) {        if (Listener != null) {            onNetworkchangelisteners.add(Listener);        }    }    /**     * 注销监听     */    public voID removeListener(OnNetworkchangelistener Listener) {        if (Listener != null) {            onNetworkchangelisteners.remove(Listener);        }    }    /**     * 通知网络状态更新     */    private voID notifyNetworkChange() {        for (OnNetworkchangelistener Listener : onNetworkchangelisteners) {            if (Listener != null) {                Listener.onNetworkChange();            }        }    }    private class NetbroadcastReceiver extends broadcastReceiver {        @OverrIDe        public voID onReceive(Context context, Intent intent) {            String action = intent.getAction();            //如果action是网络变化，则执行以下处理逻辑            if (action != null && action.equals(ConnectivityManager.CONNECTIVITY_ACTION)) {                //网络状态可以根据自己项目工具类获取                int type = NetworkUtils.getNetWorkType(TextApp.getInstance());                if (type == NetworkUtils.NETWORK_NO) {                    Log.e("TAG", "断开");                    executor.execute(netChangeRunnable);                } else if (type != NetworkUtils.NETWORK_WIFI) {                    executor.execute(netChangeRunnable);                    Log.e("TAG", "连上移动网络了");                }else {                    Log.e("TAG", "连上（wifi）");                }            }        }    }}

//接口

 

public interface OnNetworkchangelistener {    voID onNetworkChange();}

 

 

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