If the user has Android 2.2 installed on their device and you haven’t applied this tip, they’ll see a tantalizingly useful, yet grayed out, button when they try to move the application to their SD card. Download the source code if you want to perform these steps yourself, or just follow along and use these steps with your own Android applications. We begin this tutorial by obtaining the version of the phrasebook Android application used in a previous tutorial called Android SDK: Building a Localized Phrasebook. Even your Android 1.5 application can use this feature.
This feature was introduced in Android 2.2, but does not require the application to use the Android 2.2 SDK as the minimum supported SDK version. This tutorial will take an existing Android application and add the ability for the user to move the application to their SD card. This Android Quick Tip will show you how to allow your end-users to optionally save valuable device storage space by choosing to store your application on their removable SD card.
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