安卓(Android)网络管理工具,判断使用的网络类型、网络状态判断、以及可根据优先级自动切换到实际可以上外网的网络通道
安卓(Android)网络管理工具
判断使用的网络类型、网络状态判断、以及可根据优先级自动切换到实际可以上外网的网络通道
本文连接:https://www.cnblogs.com/muphy/p/15620772.html
适用于以下需求:
1.物联网开发,为了满足网络可靠性,对安卓应用设置了多网口上网,WIFI或者以太网+4G网
2.当使用蜂窝网(4G)时限制数据上传频率,以太网或者WIFI网络不限制
3.需要确保连接上的以太网或者WIFI是否真的可以上外网,网络存在但不可以上网时绑定蜂窝网(4G)上网
NetWorkUtils.java
//package me.muphy.util; import android.content.Context; import android.net.ConnectivityManager; import android.net.Network; import android.net.NetworkCapabilities; import android.net.NetworkRequest; import android.os.Build; import android.util.Log; import androidx.annotation.RequiresApi; import java.util.ArrayList; import java.util.List; import java.util.concurrent.Executors; import java.util.concurrent.ScheduledExecutorService; import java.util.concurrent.TimeUnit; public class NetWorkUtils { public static final String TAG = NetWorkUtils.class.getSimpleName(); public static volatile boolean isActivityConnected = true; public static volatile boolean isConnected = true; private static ScheduledExecutorService executorService = Executors.newSingleThreadScheduledExecutor(); @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) public static List<NetworkCapabilities> getAllNetworkCapabilities() { ConnectivityManager connectivityManager = (ConnectivityManager) ContextHolder.getContext().getSystemService(Context.CONNECTIVITY_SERVICE); Network[] networks = connectivityManager.getAllNetworks(); List<NetworkCapabilities> list = new ArrayList<>(); for (Network network : networks) { NetworkCapabilities capabilities = connectivityManager.getNetworkCapabilities(network); list.add(capabilities); } return list; } public static String getNetworkName(int transportType) { if (transportType == NetworkCapabilities.TRANSPORT_WIFI) { return "WIFI"; } else if (transportType == NetworkCapabilities.TRANSPORT_CELLULAR) { return "蜂窝网络"; } else if (transportType == NetworkCapabilities.TRANSPORT_ETHERNET) { return "以太网"; } else { return "其他网络"; } } @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) public static int getTransportType(NetworkCapabilities networkCapabilities) { if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) { return NetworkCapabilities.TRANSPORT_WIFI; //post(NetType.WIFI); } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) { return NetworkCapabilities.TRANSPORT_CELLULAR; //post(NetType.CMWAP); } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)) { return NetworkCapabilities.TRANSPORT_ETHERNET; //post(NetType.AUTO); } return -1; } //以太网连上但不能上外网时,程序已经绑定了蜂窝网通道上网,此方法判断是否实际使用蜂窝网上网 public static boolean isRealCellular() { if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { boolean activityCellular = isActivityCellular(); if (activityCellular) { return true; } return !isActivityConnected; } return true; } //判断激活的网(默认网络)是否4G网 @RequiresApi(api = Build.VERSION_CODES.M) public static boolean isActivityCellular() { boolean isCellular = (getTransportType() == NetworkCapabilities.TRANSPORT_CELLULAR); return isCellular; } public static boolean isCellular(int transportType) { boolean isCellular = (transportType == NetworkCapabilities.TRANSPORT_CELLULAR); return isCellular; } //判断激活的网(默认网络)是否4G网 @RequiresApi(api = Build.VERSION_CODES.M) public static boolean isActivityWifi() { boolean isWifi = (getTransportType() == NetworkCapabilities.TRANSPORT_WIFI); return isWifi; } public static boolean isWifi(int transportType) { boolean isWifi = (transportType == NetworkCapabilities.TRANSPORT_WIFI); return isWifi; } //判断激活的网(默认网络)是否4G网 @RequiresApi(api = Build.VERSION_CODES.M) public static boolean isActivityEthernet() { boolean isEthernet = (getTransportType() == NetworkCapabilities.TRANSPORT_ETHERNET); return isEthernet; } public static boolean isEthernet(int transportType) { boolean isEthernet = (transportType == NetworkCapabilities.TRANSPORT_ETHERNET); return isEthernet; } @RequiresApi(api = Build.VERSION_CODES.M) public static int getTransportType() { int transportType = -2; ConnectivityManager connectivityManager = (ConnectivityManager) ContextHolder.getContext().getSystemService(Context.CONNECTIVITY_SERVICE); Network activeNetwork = connectivityManager.getActiveNetwork(); if (activeNetwork == null) { isConnected = false; } else { NetworkCapabilities networkCapabilities = connectivityManager.getNetworkCapabilities(activeNetwork); if (networkCapabilities.hasCapability(NetworkCapabilities.NET_CAPABILITY_VALIDATED)) { isConnected = true; transportType = getTransportType(networkCapabilities); } else { isConnected = false; } } return transportType; } @RequiresApi(api = Build.VERSION_CODES.LOLLIPOP) public static void requestNetwork() { final ConnectivityManager connectivityManager = (ConnectivityManager) ContextHolder.getContext().getSystemService(Context.CONNECTIVITY_SERVICE); NetworkRequest.Builder builder = new NetworkRequest.Builder(); builder.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET); builder.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR); NetworkRequest networkRequest = builder.build(); ConnectivityManager.NetworkCallback networkCallback = new ConnectivityManager.NetworkCallback() { @Override public void onAvailable(Network network) { if (Build.VERSION.SDK_INT >= 23) { connectivityManager.bindProcessToNetwork(network); } else { // 23后这个方法舍弃了 ConnectivityManager.setProcessDefaultNetwork(network); } } }; final boolean[] chanelFlag = {true}; executorService.scheduleWithFixedDelay(() -> { try { //网络都没连接直接返回 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) { if (isActivityCellular()) { return; } } if (!isConnected) { return; } isActivityConnected = ping(); if (isActivityConnected) { if (chanelFlag[0]) { return; } chanelFlag[0] = true; //1.以太网络可上外网时改为默认优先级上网 if (Build.VERSION.SDK_INT >= 23) { connectivityManager.bindProcessToNetwork(null); } else { ConnectivityManager.setProcessDefaultNetwork(null); } connectivityManager.unregisterNetworkCallback(networkCallback); } else if (chanelFlag[0]) { //2.以太网络不可上外网时自动切换蜂窝网 connectivityManager.requestNetwork(networkRequest, networkCallback); chanelFlag[0] = false; } } catch (Exception e) { e.printStackTrace(); LogFileUtils.exceptionToFile(e); } }, 1, 5, TimeUnit.SECONDS); } // PING命令 使用新进程使用默认网络 不会使用 networkCallback 绑定的通道 用来判断以太网或者WiFi是否可上外网非常不错 public static boolean ping() { Runtime runtime = Runtime.getRuntime(); try { Process p = runtime.exec("ping -c 1 -W 1 www.baidu.com"); int ret = p.waitFor(); Log.i(TAG, "Process:" + ret); return ret == 0; } catch (Exception e) { e.printStackTrace(); } return false; } }