Last year David created an Android app for live performance named Audio Cues. It lets performing companies run sound for theater and other live shows. One of the tasks that app had to accomplish was to find existing audio files on a device, and in this tip he shares the code that worked for him.
- [Instructor] Last year, I created an Android app…for live performance named Audio Cues.…It lets performance companies run sound…for theater and other live shows.…One of that app's tasks was…to find existing audio files on a device…and display their information.…And in this tip, I'll share the code that worked for me.…Whenever you want to work with files…in persistent storage, whether audio or something else,…you need the appropriate permission.…In particular, I'll be working with files…in external storage.…
The storage that's visible to all applications.…In this beginning app's manifest file,…I've added the required permission…named read external storage.…In last week's tip, I described how…to deal with this sort of permission,…known as a dangerous permission.…In newer versions of Android, starting in Android 6,…you have to explicitly ask for the permission…at runtime, and the code to do that…is already in the main activity class for this application.…Down at the bottom, there's a check permissions method,…and the code is there to ask for permission,…
Skill Level Intermediate
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Android App Development: Communicating with the Userwith Joe Marini1h 12m Intermediate
Building Android Apps with Cloud Serviceswith Albert Lo2h 37m Intermediate
Android App Development: Data Persistence Librarieswith Annyce Davis4h 52m Intermediate
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1. Android Development Tips Weekly
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