我想使用连接管理器,它提供activeNetworkInfo.type方法来检查Android中的网络类型.这个方法在API级别28中已弃用.那么在API 28中检查网络类型的解决方案是什么.我的代码是：

/**
 * Check Wi Fi connectivity
 */
fun isWiFiConnected(context: Context): Boolean {
    val connManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
    return connManager.activeNetworkInfo.type == ConnectivityManager.TYPE_WIFI
}

我的Gradle就像：

compileSdkVersion 28
buildToolsVersion '28.0.3'
defaultConfig {
        minSdkVersion 21
        targetSdkVersion 28
    }

解决方法:

Yes getType() is deprecated in API lavel 28

现在我们需要使用Use Callers切换到检查NetworkCapabilities.hasTransport(int)

也是 getAllNetworkInfo() is deprecated in API level 29

现在我们需要使用Use getAllNetworks()而不是getNetworkInfo(android.net.Network).

getNetworkInfo()

>返回有关特定网络的连接状态信息.

getAllNetworks()

>返回框架当前跟踪的所有网络的数组.

示例代码

fun isWiFiConnected(context: Context): Boolean {
    val connectivityManager = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager
    return if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
        val network = connectivityManager.activeNetwork
        val capabilities = connectivityManager.getNetworkCapabilities(network)
        capabilities != null && capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)
    } else {
        connectivityManager.activeNetworkInfo.type == ConnectivityManager.TYPE_WIFI
    }
}

完整的代码

@Suppress("DEPRECATION")
fun isInternetAvailable(context: Context): Boolean {
    var result = false
    val cm = context.getSystemService(Context.CONNECTIVITY_SERVICE) as ConnectivityManager?
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
        cm?.run {
            cm.getNetworkCapabilities(cm.activeNetwork)?.run {
                result = when {
                    hasTransport(NetworkCapabilities.TRANSPORT_WIFI) -> true
                    hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR) -> true
                    hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET) -> true
                    else -> false
                }
            }
        }
    } else {
        cm?.run {
            cm.activeNetworkInfo?.run {
                if (type == ConnectivityManager.TYPE_WIFI) {
                    result = true
                } else if (type == ConnectivityManager.TYPE_MOBILE) {
                    result = true
                }
            }
        }
    }
    return result
}