android-networking

I use DefaultHttpClient and HttpGet to poll data from server. Now, say a user was in Wi-fi network and moves out of the room. So the phone automatically starts using the 3G network. Are there any call-backs for such change, and how should I handle such changes. Should I start polling again or does the OS take care to make the changes appropriately You can set up a Receiver in your manifest: <receiver android:name=".NetworkChangeReceiver" android:label="NetworkChangeReceiver"> <intent-filter> <action android:name="android.net.conn.CONNECTIVITY_CHANGE" /> <action android:name="android.net.wifi

I'm trying to upgrade to Retrofit 2.0 and add RxJava in my android project. I'm making an api call and want to retrieve the error code in case of an error response from the server. Observable<MyResponseObject> apiCall(@Body body); And in the RxJava call: myRetrofitObject.apiCall(body).subscribe(new Subscriber<MyResponseObject>() { @Override public void onCompleted() { } @Override public void onError(Throwable e) { } @Override public void onNext(MyResponseObject myResponseObject) { //On response from server } }); In Retrofit 1.9, the RetrofitError still existed and we could get the status by

How can I get the ip address of my phone when it is connected under wifi? I found a method here but it returns something like 24.182.239.255 even if I'm under wifi and I expect something like 192.168.1.10. I'd like something like: if (you are under wifi) String ip4 = getWifiIP() else String ip4 = getIPAddress with the method linked before Many thanks! If you would like to get the private IP address of your device when connected to Wi-Fi, you can try this. WifiManager wifiMgr = (WifiManager) getSystemService(WIFI_SERVICE); WifiInfo wifiInfo = wifiMgr.getConnectionInfo(); int ip = wifiInfo

Most of the network socket examples I found for Android were one directional only. I needed a solution for a bi-directional data stream. I eventually learned of the AsyncTask. This example shows how to get data from a socket and send data back to it. Due to the blocking nature of a socket that is receiving data, that blocking needs to run in a thread other than the UI thread. For the sake of example, this code connects to a webserver. Pressing the "Start AsyncTask" button will open the socket. Once the socket is open, the web server waits for a request. Pressing the "Send Message" button will