Android 下网络状态监听

    最近在做网络监听的时候发现原来用的 NetworkInfo 中好多方法已经过期，so 看了下SDK及文档现将最新方法记录下。

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//获取网络连接管理
ConnectivityManager connectivityManager = 
 (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
//获取正在使用的网络信息
NetworkInfo networkInfo = connectivityManager.getActiveNetworkInfo();
if(networkInfo != null && networkInfo.isConnected()){
    //有网
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
        //sdk大于21
        NetworkCapabilities capabilities =
connectivityManager.getNetworkCapabilities(connectivityManager.getActiveNetwork());
        if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
            //蜂窝网络
            Log.e("test","蜂窝网络>>>>>>>>");
            return;
        }
        if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
            //wifi
            Log.e("test","wifi>>>>>>>>");
            return;
        }
        if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_BLUETOOTH)) {
            //蓝牙
            Log.e("test","蓝牙>>>>>>>>");
            return;
        }
        if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)) {
            //以太网
            Log.e("test","以太网>>>>>>>>");
            return;

        }
        if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_VPN)) {
            //VPN
            Log.e("test","VPN>>>>>>>>");
            return;
        }
               
     } else {
         //sdk小于21 
      switch (networkInfo.getType()) {
            case ConnectivityManager.TYPE_MOBILE:
                break;
            case ConnectivityManager.TYPE_WIFI:
                break;
            case ConnectivityManager.TYPE_ETHERNET:
                break;
            case ConnectivityManager.TYPE_VPN:
                break;
            case ConnectivityManager.TYPE_BLUETOOTH:
                break;
            default:
                break;
        }
     }
} else {
    //无网
}