Free Android app covering all aspects of addiction, including prevention and treatment

Android's progress bars

How to customise your Progress Bars Progress bars let the user know that the device is busy, for example, downloading a file. It can also show roughly how much longer the download will take. Progress bars don’t always look the same on all devices. We’ll show you how to customise…

Android: Using touch gestures

Signs and wonders: Using Gestures Android touchscreen devices can sense when the user touches the screen. They can also record the movement of the user’s finger across the screen. These movements or strokes are also known as gestures. You can store a collection of gestures in a file and then…

Android image Spinner tutorial

In a flat spin: Showing images in a Spinner Spinners display a list of selectable items. When first displayed, the Spinner only shows the currently selected item. Touching the Spinner displays the full list of items that the user can choose from. Our tutorial will show you how to use…
What! No XML? Creating layouts programmatically   Our tutorial app Our tutorial app creates a table containing text views, text fields and a button. There is no XML layout file as we do everything programmatically. A Toast message displays the input after the user has filled in the text fields…
Using Intents and Intent Filters in your apps: A tutorial Our tutorial app shows you how to use intents and intent filters in your apps. Here’s a quick overview of what we’ll cover. We’ll show you how to: use explicit intents to: start a new activity start an activity to…