Android "Networkonmainthreadexception" error causes and solutions

Cause: Communication in the main thread is not allowed

Method 1: You can, of course, deal with it:

Strictmode.setthreadpolicy (New StrictMode.ThreadPolicy.Builder ()
. Detectdiskreads ()
. Detectdiskwrites ()
. Detectnetwork ()//or. Detectall () for all detectable problems
. Penaltylog ()
. build ());
Strictmode.setvmpolicy (New StrictMode.VmPolicy.Builder ()
. Detectleakedsqlliteobjects ()
. Detectleakedclosableobjects ()
. Penaltylog ()
. Penaltydeath ()
. build ());

Strictmode.setthreadpolicy (new  StrictMode.ThreadPolicy.Builder ()        . Detectdiskreads ()        . Detectdiskwrites ()        . Detectnetwork ()   //  or. Detectall () for all detectable problems         . Penaltylog ()        . Build ());        Strictmode.setvmpolicy(new  StrictMode.VmPolicy.Builder ()                . Detectleakedsqlliteobjects ( )                . Detectleakedclosableobjects ().                penaltylog ()                . Penaltydeath ()                . Build ());

This does not need to be executed in one thread.
Method 2: (No Tests)

New Thread () {
@Override
public void Run ()
{
Network access
}
}.start ();

Android "Networkonmainthreadexception" error causes and workarounds