判断Android客户端网络是否连接_JAVA_编程开发_程序员俱乐部

	public static boolean checkNet(Context context) {
		try {
			ConnectivityManager connectivity = (ConnectivityManager) context
					.getSystemService(Context.CONNECTIVITY_SERVICE);
			if (connectivity != null) {

				NetworkInfo info = connectivity.getActiveNetworkInfo();
				if (info != null && info.isConnected()) {

					if (info.getState() == NetworkInfo.State.CONNECTED) {
						return true;
					}
				}
			}
		} catch (Exception e) {
			return false;
		}
		return false;
	}

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//打印判断结果

System.out.println(checkNet(this));

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另外，一定要加入权限

<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

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