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马天宇
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| Original file line number | Diff line number | Diff line change |
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| @@ -0,0 +1,195 @@ | ||
| package com.litesuits.common.assist; | ||
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| import android.content.Context; | ||
| import android.net.ConnectivityManager; | ||
| import android.net.NetworkInfo; | ||
| import com.litesuits.android.log.Log; | ||
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| import java.lang.reflect.Method; | ||
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| /** | ||
| * | ||
| * assist us in sensing state of the networks. | ||
| * | ||
| * need <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/> | ||
| * | ||
| * 半夜了，研究了一下Android的Network方面，发现网上有些文章理解的是不对的。 | ||
| * 以下方法是我研究得出的结论和方法，如有误也感谢指出。 | ||
| * | ||
| * @author MaTianyu | ||
| * 2014-1-8上午 00:33:11 | ||
| */ | ||
| public class Network { | ||
| private static final String TAG = Network.class.getSimpleName(); | ||
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| public enum NetType { | ||
| None(1), | ||
| Mobile(2), | ||
| Wifi(4), | ||
| Other(8); | ||
| NetType(int value) { | ||
| this.value = value; | ||
| } | ||
| public int value; | ||
| } | ||
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| /** | ||
| * 获取ConnectivityManager | ||
| */ | ||
| public static ConnectivityManager getConnManager(Context context) { | ||
| return (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); | ||
| } | ||
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| /** | ||
| * 判断网络连接是否有效（此时可传输数据）。 | ||
| * @param context | ||
| * @return boolean 不管wifi，还是mobile net，只有当前在连接状态（可有效传输数据）才返回true,反之false。 | ||
| */ | ||
| public static boolean isConnected(Context context) { | ||
| NetworkInfo net = getConnManager(context).getActiveNetworkInfo(); | ||
| return net != null && net.isConnected(); | ||
| } | ||
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| /** | ||
| * 判断有无网络正在连接中（查找网络、校验、获取IP等）。 | ||
| * @param context | ||
| * @return boolean 不管wifi，还是mobile net，只有当前在连接状态（可有效传输数据）才返回true,反之false。 | ||
| */ | ||
| public static boolean isConnectedOrConnecting(Context context) { | ||
| NetworkInfo[] nets = getConnManager(context).getAllNetworkInfo(); | ||
| if (nets != null) { | ||
| for (NetworkInfo net : nets) { | ||
| if (net.isConnectedOrConnecting()) { return true; } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
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| public static NetType getConnectedType(Context context) { | ||
| NetworkInfo net = getConnManager(context).getActiveNetworkInfo(); | ||
| if (net != null) { | ||
| switch (net.getType()) { | ||
| case ConnectivityManager.TYPE_WIFI : | ||
| return NetType.Wifi; | ||
| case ConnectivityManager.TYPE_MOBILE : | ||
| return NetType.Mobile; | ||
| default : | ||
| return NetType.Other; | ||
| } | ||
| } | ||
| return NetType.None; | ||
| } | ||
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| /** | ||
| * 是否存在有效的WIFI连接 | ||
| */ | ||
| public static boolean isWifiConnected(Context context) { | ||
| NetworkInfo net = getConnManager(context).getActiveNetworkInfo(); | ||
| return net != null && net.getType() == ConnectivityManager.TYPE_WIFI && net.isConnected(); | ||
| } | ||
|
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| /** | ||
| * 是否存在有效的移动连接 | ||
| * @param context | ||
| * @return boolean | ||
| */ | ||
| public static boolean isMobileConnected(Context context) { | ||
| NetworkInfo net = getConnManager(context).getActiveNetworkInfo(); | ||
| return net != null && net.getType() == ConnectivityManager.TYPE_MOBILE && net.isConnected(); | ||
| } | ||
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| /** | ||
| * 检测网络是否为可用状态 | ||
| */ | ||
| public static boolean isAvailable(Context context) { | ||
| return isWifiAvailable(context) || (isMobileAvailable(context) && isMobileEnabled(context)); | ||
| } | ||
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| /** | ||
| * 判断是否有可用状态的Wifi，以下情况返回false： | ||
| * 1. 设备wifi开关关掉; | ||
| * 2. 已经打开飞行模式； | ||
| * 3. 设备所在区域没有信号覆盖； | ||
| * 4. 设备在漫游区域，且关闭了网络漫游。 | ||
| * | ||
| * @param context | ||
| * @return boolean wifi为可用状态（不一定成功连接，即Connected）即返回ture | ||
| */ | ||
| public static boolean isWifiAvailable(Context context) { | ||
| NetworkInfo[] nets = getConnManager(context).getAllNetworkInfo(); | ||
| if (nets != null) { | ||
| for (NetworkInfo net : nets) { | ||
| if (net.getType() == ConnectivityManager.TYPE_WIFI) { return net.isAvailable(); } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
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| /** | ||
| * 判断有无可用状态的移动网络，注意关掉设备移动网络直接不影响此函数。 | ||
| * 也就是即使关掉移动网络，那么移动网络也可能是可用的(彩信等服务)，即返回true。 | ||
| * 以下情况它是不可用的，将返回false： | ||
| * 1. 设备打开飞行模式； | ||
| * 2. 设备所在区域没有信号覆盖； | ||
| * 3. 设备在漫游区域，且关闭了网络漫游。 | ||
| * | ||
| * @param context | ||
| * @return boolean | ||
| */ | ||
| public static boolean isMobileAvailable(Context context) { | ||
| NetworkInfo[] nets = getConnManager(context).getAllNetworkInfo(); | ||
| if (nets != null) { | ||
| for (NetworkInfo net : nets) { | ||
| if (net.getType() == ConnectivityManager.TYPE_MOBILE) { return net.isAvailable(); } | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
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| /** | ||
| * 设备是否打开移动网络开关 | ||
| * @param context | ||
| * @return boolean 打开移动网络返回true，反之false | ||
| */ | ||
| public static boolean isMobileEnabled(Context context) { | ||
| try { | ||
| Method getMobileDataEnabledMethod = ConnectivityManager.class.getDeclaredMethod("getMobileDataEnabled"); | ||
| getMobileDataEnabledMethod.setAccessible(true); | ||
| return (Boolean) getMobileDataEnabledMethod.invoke(getConnManager(context)); | ||
| } catch (Exception e) { | ||
| e.printStackTrace(); | ||
| } | ||
| // 反射失败，默认开启 | ||
| return true; | ||
| } | ||
|
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| /** | ||
| * 打印当前各种网络状态 | ||
| * @param context | ||
| * @return boolean | ||
| */ | ||
| public static boolean printNetworkInfo(Context context) { | ||
| ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); | ||
| if (connectivity != null) { | ||
| NetworkInfo in = connectivity.getActiveNetworkInfo(); | ||
| Log.i(TAG, "-------------$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$-------------"); | ||
| Log.i(TAG, "getActiveNetworkInfo: " + in); | ||
| NetworkInfo[] info = connectivity.getAllNetworkInfo(); | ||
| if (info != null) { | ||
| for (int i = 0; i < info.length; i++) { | ||
| // if (info[i].getType() == ConnectivityManager.TYPE_WIFI) { | ||
| Log.i(TAG, "NetworkInfo[" + i + "]isAvailable : " + info[i].isAvailable()); | ||
| Log.i(TAG, "NetworkInfo[" + i + "]isConnected : " + info[i].isConnected()); | ||
| Log.i(TAG, "NetworkInfo[" + i + "]isConnectedOrConnecting : " + info[i].isConnectedOrConnecting()); | ||
| Log.i(TAG, "NetworkInfo[" + i + "]: " + info[i]); | ||
| // } | ||
| } | ||
| Log.i(TAG, "\n"); | ||
| } else { | ||
| Log.i(TAG, "getAllNetworkInfo is null"); | ||
| } | ||
| } | ||
| return false; | ||
| } | ||
|
|
||
| } |
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