Light

rakyll / janis Goto Github PK

View Code? Open in Web Editor NEW

6.0 3.0 3.0 186 KB

The missing components of Android SDK

License: Other

Java 100.00%

janis's Introduction

Janis, the Missing Components of Android SDK

Janis aims to solve everyday problems by providing solutions for everyday problems by providing commonly needed features for existing components that are not presented in the official Android SDK. This library includes the following components:

Views

LoadingImageView: An image view you can set an remote image url.
LoadingListView: A list view allows you to fire new loading actions once user hits the bottom of the list.
NotScrollingListView: A list view that is growing in height depending on the number of the items on the list. This is a popular trick to put a ListView into a ScrollView, so ListView scrolling wont block its parent's.
NotScrollingListView: Similart to NotScrollingListView but for constructing grid views.
AnimatedImageView: Animates an array of drawables you set.
PagedScrollView: A vertically scrolling view with paging enabled.
HortizontalPagedScrollView: A horizontally scrolling view with paged enabled.

... TODO

janis's People

Stargazers

Watchers

Forkers

emptyzone skumar2998

janis's Issues

Should map components be a part of Janis?

Since, they require Google Maps library for Android (and therefore a different built target), should we separate maps from janis?

Show an indicator while LoadingImageView is loading

Is there any option for LoadingImageView to show a loading indicator if its background task is processing?

LoadingImageView should implement an AsyncTask for the background handle

LoadingImageView should adopt an AsyncTask to download the remote image since the regular fashion in the library is to run background tasks is to use AsyncTasks.

LoadingImageView and LoadingListView task management is not thread safe

LoadingImageView .setImageUrl should be able to perform thread safely. There should be no more than a single BackgroundTask instance created by LoadingImageView.

If setImageUrl is called,

If there is an existing task, it should be cancelled
A new task should be created and executed.

On LoadingListView,

If there exists a current task, that task should be waited to be finished.
If there is none or one with finished state, new task can be created and executed.

Instead of implementing features as individual custom components, factorize the construction

Create factories for ListView, ImageView etc. to bind optional features instead of implementing each component individually.

Feature Request: CorneredBitmap Factory

CorneredBitmap creation is started to base on a lot of feautres (mostly optional) and construction should be factorized.

Methods of LoadingImageView.OnDownloadListener signatures should include a reference to the image view

LoadingImageView should implement a default cache

If not set, no caching is availed at this moment. We should implement a hasmap based in-memory cache as default.

NotScrollingListView doesnt calculate height properly if rows are different in length

If item views are different in height, NotScrollingListView scrolls. There are 2 things to argue:

To minimize calculation, the height is measured based of the first row view of the list view. If there exists row items differs in length, this calculation is not accurate.
On the other hand, current list view provides no caching since all item views are visible. So it's already risky to use it on a large set of data. Depending on this fact, no one will bind large data because they will get out of memory.

So, it may OK to provide an optional height calculation that is accurate.

Image download task cancelation

LoadingImageView should provide:

an interface to cancel the current download task
cancellation of the current download task if a new one gets started.

Document null namespace tradition of Janis

Custom functionalities of custom views requires you not to use any namespace for attributes.

Recommend Projects

React

A declarative, efficient, and flexible JavaScript library for building user interfaces.
Vue.js

🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
Typescript

TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
TensorFlow

An Open Source Machine Learning Framework for Everyone
Django

The Web framework for perfectionists with deadlines.
Laravel

A PHP framework for web artisans
D3

Bring data to life with SVG, Canvas and HTML. 📊📈🎉

Recommend Topics

javascript

JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
web

Some thing interesting about web. New door for the world.
server

A server is a program made to process requests and deliver data to clients.
Machine learning

Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
Visualization

Some thing interesting about visualization, use data art
Game

Some thing interesting about game, make everyone happy.

Recommend Org

Facebook

We are working to build community through open source technology. NB: members must have two-factor auth.
Microsoft

Open source projects and samples from Microsoft.
Google

Google ❤️ Open Source for everyone.
Alibaba

Alibaba Open Source for everyone
D3

Data-Driven Documents codes.
Tencent

China tencent open source team.