Best way to evaluate connection speed
Facebook released a library for this: https://github.com/facebook/network-connection-class this wasn’t existing in 2011..
3g
UDP hole punching not going through on 3G
Unfortunately, there is no 100% reliable way to perform NAT hole punching with UDP. At best, you can make some guesses about how NATs and firewalls will probably behave most of the time. But there will always be exceptions and they may not be rare. In this case, it sounds like you are using a … Read more
How can i turn off 3G/Data programmatically on Android?
There is no official way to do this. However, it can be achieved unofficially with reflection. For Android 2.3 and above: private void setMobileDataEnabled(Context context, boolean enabled) { final ConnectivityManager conman = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE); final Class conmanClass = Class.forName(conman.getClass().getName()); final Field iConnectivityManagerField = conmanClass.getDeclaredField(“mService”); iConnectivityManagerField.setAccessible(true); final Object iConnectivityManager = iConnectivityManagerField.get(conman); final Class iConnectivityManagerClass = Class.forName(iConnectivityManager.getClass().getName()); … Read more
WebSockets over a 3G connection
Some mobile phone operators are notoriously known for setting up utterly broken transparent proxies that you’re forced to pass through. This is a real annoyance that the WebSocket working group has had to deal with since the very beginning. The protocol is designed to ensure that it will fail very quickly in presence of such … Read more
iOS Detect 3G or WiFi
Using the code that Apple has provided here Reachability *reachability = [Reachability reachabilityForInternetConnection]; [reachability startNotifier]; NetworkStatus status = [reachability currentReachabilityStatus]; if(status == NotReachable) { //No internet } else if (status == ReachableViaWiFi) { //WiFi } else if (status == ReachableViaWWAN) { //3G }
How to check iOS app size before upload [duplicate]
This question is quite old, but IMO still relevant. Here is a recent message I received from Apple when I uploaded an app for review: The app binary listed below was 79.7 MB when you submitted it, but will be 132.2 MB once processed for the App Store. This exceeds the cellular network download size … Read more
Reducing the battery impact of apps that downloads content over a smartphone radio
This answer is summarized from The Android Training class, Transferring Data Without Draining the Battery which explains how to minimize the battery life impact of downloads and network connections, particularly in relation to the wireless radio. In particular Optimizing Downloads for Efficient Network Access explains the wireless radio state machine in some detail and goes … Read more
How to determine if network type is 2G, 3G or 4G
You can put this following method directly in your Utility class: Kotlin: /** Usage: `networkTypeClass(telephonyManager.networkType)` */ fun networkTypeClass(networkType: Int): String { when (networkType) { TelephonyManager.NETWORK_TYPE_GPRS, TelephonyManager.NETWORK_TYPE_EDGE, TelephonyManager.NETWORK_TYPE_CDMA, TelephonyManager.NETWORK_TYPE_1xRTT, TelephonyManager.NETWORK_TYPE_IDEN, TelephonyManager.NETWORK_TYPE_GSM -> return “2G” TelephonyManager.NETWORK_TYPE_UMTS, TelephonyManager.NETWORK_TYPE_EVDO_0, TelephonyManager.NETWORK_TYPE_EVDO_A, TelephonyManager.NETWORK_TYPE_HSDPA, TelephonyManager.NETWORK_TYPE_HSUPA, TelephonyManager.NETWORK_TYPE_HSPA, TelephonyManager.NETWORK_TYPE_EVDO_B, TelephonyManager.NETWORK_TYPE_EHRPD, TelephonyManager.NETWORK_TYPE_HSPAP, TelephonyManager.NETWORK_TYPE_TD_SCDMA -> return “3G” TelephonyManager.NETWORK_TYPE_LTE -> return “4G” TelephonyManager.NETWORK_TYPE_NR -> return “5G” else … Read more
Adding a new network bearer to Android
WIFI add network will be you can take hints from this code.. how do we get the access point name from an Android Phone. WifiManager mWiFiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE); WifiInfo w = mWiFiManager.getConnectionInfo(); Toast.makeText(this, “APN Name = “+w.getSSID(), Toast.LENGTH_SHORT).show(); The above code snippet is for current active APN name.