android.os.NetworkOnMainThreadException: This exception has no message.

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via Stack Overflow by Razgriz

Happens when you make a network call on the main UI thread of the Android application which results in a UI freeze until the network call is complete and the response is received. Instead, execute the network calls in the background: use AsyncTask.

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An alternative for just getting rid of the Exception is use StrictMode.ThreadPolicy to force execute on main thread.

StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
StrictMode.setThreadPolicy(policy);

Solutions on the web

via Stack Overflow by Marjan
, 2 years ago
This exception has no message.
via Stack Overflow by pedja
, 2 years ago
This exception has no message.
via Stack Overflow by princess_blackforest
, 2 years ago
via Stack Overflow by SAbbasizadeh
, 2 years ago
android.os.NetworkOnMainThreadException:
at java.net.InetAddress.lookupHostByName(InetAddress.java:418)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)

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