android 检查是否有网络，是否在wifi环境下

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/** * 检查是否有网络 *  * @param context * @return */public static boolean isNetworkConnected(Context context) {if (context != null) {ConnectivityManager mConnectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();if (mNetworkInfo != null) {// 如果有网络，当前是3g模式还是wifi模式LogUtils.v("Tool", mNetworkInfo.getTypeName());return mNetworkInfo.isAvailable();}}return false;}

/** * 检测是否在wifi环境下 *  * @param context * @return */public static boolean isWifi(Context context) {if (context != null) {ConnectivityManager mConnectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo mNetworkInfo = mConnectivityManager.getActiveNetworkInfo();if (mNetworkInfo != null) {LogUtils.v("Tool", mNetworkInfo.getTypeName());if (mNetworkInfo.getTypeName().equals("WIFI")) {return true;}return false;}}return false;}

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