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Emulator: Process finished with exit code 1 You opened AVD Manager in Android Studio and tried to start an AVD, you got “Emulator: Process finished with exit code 1”. Following are the steps to debug this Find out the name […]
Update: As of Mar 2022, I recommend everyone to use GitHub Actions I maintain a somewhat popular Android developer tool (adb-enhanced). The tool is written in Python, supporting both Python 2 and 3. Testing the tool requires both Python runtime […]
Don’t use platform fragments (android.app.Fragment), they have been deprecated and can trigger version-specific bugs. Use the support library fragments (android.support.v4.app.Fragment) instead. A Fragment is created explicitly via your code or recreated implicitly by the FragmentManager. The FragmentManager can only recreate […]
A JPEG file can have Exif metadata which can provide the rotation/translation field information for a raw JPEG image. So, a landscape raw JPEG image could actually be a portrait because it’s EXIF orientation could be set to ORIENTATION_ROTATE_90, the best way to […]
All languages have certain semantics for dealing with error cases. C deals with them by setting error codes. Java deals with them by throwing exceptions. JavaScript deals with them by throwing exceptions as well but unlike Java, it does have […]
The core idea behind resumable upload is straightforward if you are uploading a big file, then you are going to encounter users in the network conditions where they cannot upload the file in a single network session. The client-side code, […]
This is a long post. It covers several decisions like API version, distribution beyond play store, UI & network performance, and minimizing RAM, disk, and battery usage.
Highlights All android support library code is moving to the androidx namespace. No more android.support.v4 or android. support.v7 namespaces. Android app bundle to split the app into downloadable modules Navigation library to set up navigation between different activities/fragments. Use WorkMananger […]
Almost everyone developing an Android app has seen something like this in their device logs. I/Choreographer(1200): Skipped 60 frames! The application may be doing too much work on its main thread. On most devices, the Android platform tries to render […]
Android has a few really good settings built right into the platform for debugging under a hidden “Developer Options” menu. You can turn then on via Settings -> About Phone -> Build Number (tap 7 times). The steps will be similar but […]