What is Looper in Android SDK?

Looper in Android SDK is a class that manages a thread's message queue. It allows a thread to process messages or runnables in a sequential manner. The main purpose of Looper is to facilitate communication between the main thread and other threads in an efficient way.

A Looper runs in a thread and processes messages that are added to a MessageQueue. Each Looper is associated with a single Thread and each Thread can have only one Looper.

Typically, the main thread of an Android application has an associated Looper instance, which is utilized to handle user interface events and messages from other threads.

Here’s a basic example of how to use Looper in Android:

// Sample code using Looper Handler handler = new Handler(Looper.getMainLooper()); handler.post(new Runnable() { @Override public void run() { // Code to run on the main thread Log.d("LooperExample", "This is running on the main thread!"); } });

Android Looper Android SDK MessageQueue Thread management

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