@SuppressLint("NewApi")
public class MainActivity extends AppCompatActivity {
 
    private static final String TAG = "ConnectManager";
 
    private ConnectivityManager networkService;
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        networkService = (ConnectivityManager) this.getSystemService(Context.CONNECTIVITY_SERVICE);
        if (networkService != null) {
            //注冊(cè) NetworkCallBack
            networkService.registerDefaultNetworkCallback(networkCallBack);
        }
    }
 
 
    /*
    * 測(cè)試網(wǎng)絡(luò)工具類方法
    * */
    @Override
    protected void onResume() {
        super.onResume();
        //Log.e(TAG,  "=====在onResume方法中判斷 ： isMobileNetwork ：" + NetworkUtils.isMobileNetwork(this));
        //Log.e(TAG,  "=====在onResume方法中判斷 ： isWifiNetwork ：" + NetworkUtils.isWifiNetwork(this));
        //Log.e(TAG,  "=====在onResume方法中判斷 ： getConnectedNetworkType ：" + NetworkUtils.getConnectedNetworkType(this));
    }
 
    @Override
    protected void onDestroy() {
        super.onDestroy();
        if (networkService != null && networkCallBack != null) {
            networkService.unregisterNetworkCallback(networkCallBack);
        }
    }
 
    private final ConnectivityManager.NetworkCallback networkCallBack = new ConnectivityManager.NetworkCallback(){
        //當(dāng)網(wǎng)絡(luò)狀態(tài)修改但仍舊是可用狀態(tài)時(shí)調(diào)用
        @Override
        public void onCapabilitiesChanged(@NonNull Network network, @NonNull NetworkCapabilities networkCapabilities) {
            super.onCapabilitiesChanged(network, networkCapabilities);
            if (NetworkUtils.isConnectedAvailableNetwork(getBaseContext())) {
                Log.d(TAG, "onCapabilitiesChanged ---> ====網(wǎng)絡(luò)可正常上網(wǎng)===網(wǎng)絡(luò)類型為： "+ NetworkUtils.getConnectedNetworkType(MainActivity.this));
            }
 
            //表明此網(wǎng)絡(luò)連接驗(yàn)證成功
            if(networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED)) {
                if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
                    Log.d(TAG, "===當(dāng)前在使用Mobile流量上網(wǎng)===");
                } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
                    Log.d(TAG, "====當(dāng)前在使用WiFi上網(wǎng)===");
                } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_BLUETOOTH)) {
                    Log.d(TAG, "=====當(dāng)前使用藍(lán)牙上網(wǎng)=====");
                } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)) {
                    Log.d(TAG, "=====當(dāng)前使用以太網(wǎng)上網(wǎng)=====");
                } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_VPN)) {
                    Log.d(TAG, "===當(dāng)前使用VPN上網(wǎng)====");
                } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI_AWARE)) {
                    Log.d(TAG, "===表示此網(wǎng)絡(luò)使用Wi-Fi感知傳輸====");
                } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_LOWPAN)) {
                    Log.d(TAG, "=====表示此網(wǎng)絡(luò)使用LoWPAN傳輸=====");
                } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_USB)) {
                    Log.d(TAG, "=====表示此網(wǎng)絡(luò)使用USB傳輸=====");
                }
            }
 
 
        }
 
        @Override
        public void onAvailable(@NonNull Network network) {
            super.onAvailable(network);
            Log.e(TAG, "==網(wǎng)絡(luò)連接成功，通知可以使用的時(shí)候調(diào)用====onAvailable===");
        }
 
        @Override
        public void onUnavailable() {
            Log.e(TAG, "==當(dāng)網(wǎng)絡(luò)連接超時(shí)或網(wǎng)絡(luò)請(qǐng)求達(dá)不到可用要求時(shí)調(diào)用====onUnavailable===");
            super.onUnavailable();
        }
 
        @Override
        public void onBlockedStatusChanged(@NonNull Network network, boolean blocked) {
            Log.e(TAG, "==當(dāng)訪問指定的網(wǎng)絡(luò)被阻止或解除阻塞時(shí)調(diào)用===onBlockedStatusChanged==");
            super.onBlockedStatusChanged(network, blocked);
        }
 
        @Override
        public void onLosing(@NonNull Network network, int maxMsToLive) {
            Log.e(TAG, "==當(dāng)網(wǎng)絡(luò)正在斷開連接時(shí)調(diào)用===onLosing===");
            super.onLosing(network, maxMsToLive);
        }
 
        @Override
        public void onLost(@NonNull Network network) {
            Log.e(TAG, "==當(dāng)網(wǎng)絡(luò)已斷開連接時(shí)調(diào)用===onLost===");
            super.onLost(network);
        }
 
 
        @Override
        public void onLinkPropertiesChanged(@NonNull Network network, @NonNull LinkProperties linkProperties) {
            Log.e(TAG, "==當(dāng)網(wǎng)絡(luò)連接的屬性被修改時(shí)調(diào)用===onLinkPropertiesChanged===");
            super.onLinkPropertiesChanged(network, linkProperties);
        }
    };
 
}

@SuppressLint("NewApi")
public class NetworkUtils {
 
    private static final String TAG = "ConnectManager";
 
    /**
     * Indicates this network uses a Cellular transport.
     */
    public static final int TRANSPORT_CELLULAR = 0;
 
    /**
     * Indicates this network uses a Wi-Fi transport.
     */
    public static final int TRANSPORT_WIFI = 1;
 
    /**
     * Indicates this network uses a Bluetooth transport.
     */
    public static final int TRANSPORT_BLUETOOTH = 2;
 
    /**
     * Indicates this network uses an Ethernet transport.
     */
    public static final int TRANSPORT_ETHERNET = 3;
 
    /**
     * Indicates this network uses a VPN transport.
     */
    public static final int TRANSPORT_VPN = 4;
 
    /**
     * Indicates this network uses a Wi-Fi Aware transport.
     */
    public static final int TRANSPORT_WIFI_AWARE = 5;
 
    /**
     * Indicates this network uses a LoWPAN transport.
     */
    public static final int TRANSPORT_LOWPAN = 6;
 
    /**
     * Indicates this network uses a Test-only virtual interface as a transport.
     * @hide
     */
    public static final int TRANSPORT_TEST = 7;
 
    /**
     * Indicates this network uses a USB transport.
     */
    public static final int TRANSPORT_USB = 8;
 
 
 
    /**
     * >= Android 10（Q版本）推薦
     *
     * 當(dāng)前使用MOBILE流量上網(wǎng)
     */
    public static boolean isMobileNetwork(Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
 
        Network network = cm.getActiveNetwork();
        if (null == network) {
            return false;
        }
 
        NetworkCapabilities capabilities = cm.getNetworkCapabilities(network);
        if (null == capabilities) {
            return false;
        }
        return capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)
                && capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED);
    }
 
 
    /**
     * >= Android 10（Q版本）推薦
     *
     * 當(dāng)前使用WIFI上網(wǎng)
     */
 
    public static boolean isWifiNetwork(Context context) {
        ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        Network network = cm.getActiveNetwork();
        if (null == network) {
            return false;
        }
        NetworkCapabilities capabilities = cm.getNetworkCapabilities(network);
        if (null == capabilities) {
            return false;
        }
        return capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)
                && capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED);
    }
 
 
    /**
     *  >= Android 10（Q版本）推薦
     *
     * 當(dāng)前使用以太網(wǎng)上網(wǎng)
     */
    public static boolean isEthernetNetwork(Context context) {
        ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        Network network = cm.getActiveNetwork();
        if (null == network) {
            return false;
        }
        NetworkCapabilities capabilities = cm.getNetworkCapabilities(network);
        if (null == capabilities) {
            return false;
        }
        return capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)
                && capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED);
    }
 
 
 
    /**
     * >= Android 10（Q版本）推薦
     *
     * NetworkCapabilities.NET_CAPABILITY_INTERNET，表示此網(wǎng)絡(luò)應(yīng)該(maybe)能夠訪問internet
     *
     *  判斷當(dāng)前網(wǎng)絡(luò)可以正常上網(wǎng)
     *  表示此連接此網(wǎng)絡(luò)并且能成功上網(wǎng)。  例如，對(duì)于具有NET_CAPABILITY_INTERNET的網(wǎng)絡(luò)，這意味著已成功檢測(cè)到INTERNET連接。
     */
    public static boolean isConnectedAvailableNetwork(Context context) {
        ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        Network network = cm.getActiveNetwork();
        if (null == network) {
            return false;
        }
        NetworkCapabilities capabilities = cm.getNetworkCapabilities(network);
        if (null == capabilities) {
            return false;
        }
        return capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
                && capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED);
    }
 
 
    /**
     * >= Android 10（Q版本）推薦
     *
     * 獲取成功上網(wǎng)的網(wǎng)絡(luò)類型
     * value = {
     *    TRANSPORT_CELLULAR,   0 表示此網(wǎng)絡(luò)使用蜂窩傳輸。
     *    TRANSPORT_WIFI,       1 表示此網(wǎng)絡(luò)使用Wi-Fi傳輸。
     *    TRANSPORT_BLUETOOTH,  2 表示此網(wǎng)絡(luò)使用藍(lán)牙傳輸。
     *    TRANSPORT_ETHERNET,   3 表示此網(wǎng)絡(luò)使用以太網(wǎng)傳輸。
     *    TRANSPORT_VPN,        4 表示此網(wǎng)絡(luò)使用VPN傳輸。
     *    TRANSPORT_WIFI_AWARE, 5 表示此網(wǎng)絡(luò)使用Wi-Fi感知傳輸。
     *    TRANSPORT_LOWPAN,     6 表示此網(wǎng)絡(luò)使用LoWPAN傳輸。
     *    TRANSPORT_TEST,       7 指示此網(wǎng)絡(luò)使用僅限測(cè)試的虛擬接口作為傳輸。
     *    TRANSPORT_USB,        8 表示此網(wǎng)絡(luò)使用USB傳輸
     * }
     */
    public static int getConnectedNetworkType(Context context) {
        ConnectivityManager cm = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
        Network network = cm.getActiveNetwork();
        if (null == network) {
            return -1;
        }
        NetworkCapabilities capabilities = cm.getNetworkCapabilities(network);
        if (null == capabilities) {
            return -1;
        }
        if (capabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED)) {
            if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
                return NetworkCapabilities.TRANSPORT_CELLULAR;
            } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
                return NetworkCapabilities.TRANSPORT_WIFI;
            } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_BLUETOOTH)) {
                return NetworkCapabilities.TRANSPORT_BLUETOOTH;
            } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)) {
                return NetworkCapabilities.TRANSPORT_ETHERNET;
            } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_VPN)) {
                return NetworkCapabilities.TRANSPORT_VPN;
            } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI_AWARE)) {
                return NetworkCapabilities.TRANSPORT_WIFI_AWARE;
            } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_LOWPAN)) {
                return NetworkCapabilities.TRANSPORT_LOWPAN;
            } else if (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_USB)) {
                return NetworkCapabilities.TRANSPORT_USB;
            }
        }
        return -1;
    }
}