Now and Future of Media Access
summary
Covers how to read and write photos on modern Android using MediaStore and ContentResolver. Shows a sample app that queries images with projection and paging, loads thumbnails to avoid OOM, crops and saves a new image by inserting into MediaStore and writing via output streams (using ID-to-URI appending), and uses cursor flows. Notes platform changes (runtime permissions since Android 6, scoped storage in Android 10, enforced opt-out removal in Android 11) and demonstrates google/modernstorage helpers like URI creation and addFromStream.
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chapters (18)
- 0:00Introduction
- 1:47Media access goals
- 2:28Media access history on Android
- 3:51Storage Access Framework
- 4:35Content providers and media stores
- 6:01Scoped storage in Android 10+
- 7:28File URI vs Content URI
- 8:32Image loading with ContentResolver
- 10:20Media store projections
- 12:06Querying cursors
- 14:37Thumbnails and query paging
- 16:22Saving new images
- 18:48URI generation changes in Android 10+
- 20:11Exclusive access with isPending
- 20:32Modern storage overview
- 21:13Media store operations
- 22:39Single media queries
- 23:00Scoped storage summary
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