Android 获取wifi状态

	/**
	 * make true current connect service is wifi
	 * @param mContext
	 * @return
	 */
	private static boolean isWifi(Context mContext) {
		ConnectivityManager connectivityManager = (ConnectivityManager) mContext
				.getSystemService(Context.CONNECTIVITY_SERVICE);
		NetworkInfo activeNetInfo = connectivityManager.getActiveNetworkInfo();
		if (activeNetInfo != null
				&& activeNetInfo.getType() == ConnectivityManager.TYPE_WIFI) {
			return true;
		}
		return false;
	}

WifiManager wifiManager = (WifiManager) context
     .getSystemService(Context.WIFI_SERVICE);