Android Debug Bridge (ADB) is a versatile command line tool that lets you communicate with an emulator instance or connected Android-powered device. You can use ADB to transfer files, install apps, access bug reports, or access the shell of your Android device remotely, and that’s just the beginning! In this guide, I’m going to show you how to install and use ADB.
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The Android ProgressBar is a useful UI component that most developers will quickly find need of. Displaying progress, even an indeterminate “loading” indicator, provides crucial feedback to a user, eliminating frustration and confusion while your app is churning away in the background.
Today I’ll demonstrate using an indeterminate ProgressBar within a ListView while loading web content. I’ll be modifying the TweetView project from my previous post.
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In my last post I created a simple Android Twitter feed reader based on the Twitter Search API, demonstrating an application of custom ListView layouts and integration of internet data sources.
Today I’ll refactor the Twitter example to add asynchronous lazy loading and caching of images (Twitter profile images, in our case).
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Last week I demonstrated designing and implementing customized layouts for Android ListView items, including some simple example code. Today i’ll expand on that code to make something a little closer to an actual app: a Twitter feed reader for Android. I’ll use this exercise to illustrate some new tools and concepts in the process such as working with JSON data and the Android BitmapFactory.
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Today I’m going to go step by step through an example of using a ListView, and customizing the visual layout of items within.
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