Android工具类-关于网络、状态的工具类

下方是一个很好的监测网络、状态的工具类

public class NetworkUtils {/** * 网络是否可用 *  * @param activity * @return */public static boolean isNetworkAvailable(Context context) {ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);if (connectivity == null) {} else {NetworkInfo[] info = connectivity.getAllNetworkInfo();if (info != null) {for (int i = 0; i < info.length; i++) {if (info[i].getState() == NetworkInfo.State.CONNECTED) {return true;}}}}return false;}/** * Gps是否打开 *  * @param context * @return */public static boolean isGpsEnabled(Context context) {LocationManager locationManager = ((LocationManager) context.getSystemService(Context.LOCATION_SERVICE));List<String> accessibleProviders = locationManager.getProviders(true);return accessibleProviders != null && accessibleProviders.size() > 0;}/** * wifi是否打开 */public static boolean isWifiEnabled(Context context) {ConnectivityManager mgrConn = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);TelephonyManager mgrTel = (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);return ((mgrConn.getActiveNetworkInfo() != null && mgrConn.getActiveNetworkInfo().getState() == NetworkInfo.State.CONNECTED) || mgrTel.getNetworkType() == TelephonyManager.NETWORK_TYPE_UMTS);}/** * 判断当前网络是否是wifi网络 * if(activeNetInfo.getType()==ConnectivityManager.TYPE_MOBILE) {  *  * @param context * @return boolean */public static boolean isWifi(Context context) {ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();if (activeNetInfo != null&& activeNetInfo.getType() == ConnectivityManager.TYPE_WIFI) {return true;}return false;}/** * 判断当前网络是否3G网络 *  * @param context * @return boolean */public static boolean is3G(Context context) {ConnectivityManager connectivityManager = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();if (activeNetInfo != null&& activeNetInfo.getType() == ConnectivityManager.TYPE_MOBILE) {return true;}return false;}}

以上方法均通过测试，tv_result为自设定的TextView。

tv_result.append("网络是否可用:"+NetworkUtils.isNetworkAvailable(MainActivity.this)+"\n");tv_result.append("GPS开关是否打开:"+NetworkUtils.isGpsEnabled(MainActivity.this)+"\n");tv_result.append("是否为3G网络:"+NetworkUtils.is3G(MainActivity.this)+"\n");tv_result.append("WIFI是否打开:"+NetworkUtils.isWifiEnabled(MainActivity.this)+"\n");tv_result.append("是否为WIFI网络:"+NetworkUtils.isWifi(MainActivity.this)+"\n");