java - 如何获取网络信息 - Android

Question

这是我下面的代码：

@SuppressWarnings("BooleanMethodIsAlwaysInverted")
private boolean isNetworkConnected() {
    ConnectivityManager cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    return cm.getActiveNetworkInfo() != null && cm.getActiveNetworkInfo().isConnected();
}

当我运行上面的代码时，我收到一条Deprecated警告说getActiveNetworkInfo和isConnected方法已被弃用。

我不想再继续这段代码了。上述代码有哪些替代方案？

有人可以帮帮我吗？提前致谢

Answer 1

下面是我在应用程序中用于检查设备是否连接到网络的代码。截至目前，它不包含任何已弃用的代码。

科特林

private fun isInternetAvailable(): Boolean {
    var result = false
    val connectivityManager = applicationContext.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager?
    connectivityManager?.let {
        it.getNetworkCapabilities(connectivityManager.activeNetwork)?.apply {
            result = when {
                hasTransport(NetworkCapabilities.TRANSPORT_WIFI) -> true
                hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) -> true
                else -> false
            }
        }
    }
    return result
}

爪哇

public static boolean isInternetAvailable(Context context) {
    boolean result = false;
    ConnectivityManager connectivityManager = (ConnectivityManager) context.getApplicationContext().getSystemService(Context.CONNECTIVITY_SERVICE);
    if (connectivityManager != null) {
        NetworkCapabilities networkCapabilities = connectivityManager.getNetworkCapabilities(connectivityManager.getActiveNetwork());
        if (networkCapabilities != null) {
            if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
                result = true;
            } else if (networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
                result = true;
            } else {
                result = false;
            }
        }
    }
    return result;
}

在此处阅读有关连接管理器和网络功能的更多信息。