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");