在将comp和targetSdkVersion更新为build.gradle中的“ 29”后,我收到了弃用警告:

warning: [deprecation] NetworkInfo in android.net has been deprecated
import android.net.NetworkInfo;
                  ^


因此,构建失败。但是我使用网络信息来与api版本16-29兼容。我应如何处理针对API“ 29”及更高版本的不推荐使用的导入?

最佳答案

您的问题的答案在此 Link中!

API 29没有弃用NetworkCapabilities,但它需要API 21,因此我仅在API 29上调用过。

public static boolean isNetworkAvailable(Context context) {
if(context == null)  return false;


ConnectivityManager connectivityManager = (ConnectivityManager)

context.getSystemService(Context.CONNECTIVITY_SERVICE);

    if (connectivityManager != null) {


    if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
            NetworkCapabilities capabilities =

 connectivityManager.getNetworkCapabilities(connectivityManager.getActiveNetwork());
            if (capabilities != null) {
                if
                (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR)) {
                    return true;
                } else if
                 (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_WIFI)) {
                    return true;
                }  else if
                 (capabilities.hasTransport(NetworkCapabilities.TRANSPORT_ETHERNET)){
                    return true;
                }
            }
        }

    else {

        try {
            NetworkInfo activeNetworkInfo =
               connectivityManager.getActiveNetworkInfo();
            if (activeNetworkInfo != null && activeNetworkInfo.isConnected()) {
                Log.i("update_statut", "Network is available : true");
                return true;
            }
        } catch (Exception e) {
            Log.i("update_statut", "" + e.getMessage());
        }
    }
}
    Log.i("update_statut","Network is available : FALSE ");
    return false;
}

关于java - 将目标sdk更新为29后导入不推荐使用的警告,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/58975139/

10-13 03:41