Android App Builder

Archive: 10-2012

• Transforming bitmaps via Android’s ImageView widget

  Learn how to apply an alpha transformation, scale a bitmap, and rotate a bitmap, all using Android’s ImageView widget.

  Posted by William J. Francis | October 30, 2012, 10:35 AM PDT

• Android gives developers direct I/O to the SD card

  Follow this tutorial on how to access the SD card on an Android device, and perform simple read and write operations.

  Posted by William J. Francis | October 24, 2012, 10:08 AM PDT

• Understanding Android app permissions

  Android’s permission mechanism enforces that each app can only perform actions that it declared it could do. Learn how to add permissions to your app’s manifest.

  Posted by Tim Mackenzie | October 23, 2012, 12:49 PM PDT

• Be aware of the Android radio group widget’s gotchas

  William J. Francis goes back to basics with this tutorial on the radio group widget, which gave him problems when he was first learning Android development.

  Posted by William J. Francis | October 18, 2012, 4:33 PM PDT

• Support different Android device configurations with dimension resources

  Dimension resources simplify the task of building and maintaining a flexible Android app that looks good on various devices. Follow these best practices when using dimension resources.

  Posted by Tim Mackenzie | October 17, 2012, 1:08 PM PDT

• Bouncing a ball on Android’s canvas

  Enterprise app developer William J. Francis has fun with Android’s animation classes in his bouncing ball tutorial.

  Posted by William J. Francis | October 11, 2012, 11:17 AM PDT

• Protect your Android apps with obfuscation

  The simplest way to protect an app is to enable the obfuscation in ProGuard, which can remove unused code and make it harder to read the decompiled code. Also learn about DexGuard.

  Posted by Tim Mackenzie | October 10, 2012, 11:28 AM PDT

• Browse Android’s media gallery via intents

  Developer William J. Francis digs a little deeper into the Android intent mechanism and shows how to browse, select, and display an existing image on your SD card.

  Posted by William J. Francis | October 4, 2012, 6:32 PM PDT

• Linking directly to apps in Android app stores

  Expand your Android app’s reach by linking to app stores beyond Google Play. Tim Mackenzie covers mutually exclusive linking, custom URI schemes, and more.

  Posted by Tim Mackenzie | October 3, 2012, 7:31 PM PDT