U-os – Tổng hợp hàng loạt tin tức số 1 cộng đồng cực hay
Công Nghệ

Android S10E2 : Handler – Update ProgressBar From Thread

By 2 Mins Read



Android Handler Tutorial and Example. How to update a progressbar from background thread using Handler class.

SOURCE CODE REFERENCE :

In this tutorial we see how to attach a handler to a thread and use the handler to update a progressbar while simulating an intensive tatsk.

This is an android tutorial. We aim to look at the Handler class. This is a very important class defined in the `android.os` package. I have covered Handler in depth with many examples here: However in this tutorial we look at how to use Handler’s post() method to post updates to the user interface. Thus we are able to update the user interface from a background thread. Meanwhile we do the work in the background thread such that the UI thread remains responsive. In this tutorial we are specifically updating a progressbar as we simulate doing work in the background thread.

Here are important links:

VIDEO TUTORIAL :

SOURCE CODE REFERENCE :

HANDLER TUTORIAL :

THREAD TUTORIAL :

What is a Handler?

A Handler allows you to send and process Message and Runnable objects associated with a thread’s MessageQueue. Each Handler instance is associated with a single thread and that thread’s message queue. When you create a new Handler, it is bound to the thread / message queue of the thread that is creating it — from that point on, it will deliver messages and runnables to that message queue and execute them as they come out of the message queue.

Let’s start.

Nguồn: https://u-os.org

Xem thêm bài viết khác: https://u-os.org/cong-nghe

Xem thêm Bài Viết:

Author

Related Posts

2 Comments

  1. ProgrammingWizards TV Reply

    GET RE-USABLE FULL APP TEMPLATE – Create any CRUD app you like.

    Oclemy here guys. I have just released a much needed course for performing all CRUD operations, search and pagination using Retrofit against MySQL. I have designed this to be a full working app that you can use as a template.

    TARGET STUDENTS:

    1. Beginners/Intermediates who want to create their first full app.

    2. Programmers who want a practical guide to master Retrofit.

    3. Students who have a looming assignment/project and want a quick easy to understand project they can modify.

    4. Anybody who wants to create a full CRUD app based on any idea.

    WHERE IS IT?

    I have just released it in udemy course. It's a 70 lecture practical step by step guide, realtime coding from scratch as we explain. It's the only Android MySQL CRUD course on udemy.

    WHY GET IT NOW?

    1. Save 5 dollars by following this link: https://www.udemy.com/android-mysql-retrofit-crud-with-search-and-pagination/?couponCode=SDRER352F or use coupon code: SDRER352F .NB/= Only first a limited number of students will get this.

    2. Next week am releasing a version for Firebase with Images/Text Full CRUD with pagination and search, You will get source code for that for free before I upload it to udemy.

    Inbox me here: oclemmi@gmail.com

    Watch the free demo here: https://www.udemy.com/android-mysql-retrofit-crud-with-search-and-pagination/

Write A Comment