TeamAmaze / TeamAmaze/AmazeFileManager
App crashes when list is loading and quickly open settings screen
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Crash-NullPointerException
Issue-Bug
Issue-Easy (good first issue)
- Dominant language
- Kotlin
- Stars
- 6.4k
- Forks
- 1.7k
- Avg merge
- 3d 9h
- Merged PRs (30d)
- 1
Description
Issue explanation (write below this line)
Exception
- User Action: UI Error
- Request: Application crash
- Version: 3.5.3
- OS: Linux Android 8.1.0 - 27
- Device: TB-8704X
- Model: Lenovo TB-8704X
- Product: TB-8704X
Crash log
java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Context.getColor(int)' on a null object reference
at com.amaze.filemanager.utils.Utils.getColor(Utils.java:133)
at com.amaze.filemanager.ui.fragments.MainFragment.initNoFileLayout(MainFragment.java:974)
at com.amaze.filemanager.ui.fragments.MainFragment.reloadListElements(MainFragment.java:1108)
at com.amaze.filemanager.ui.fragments.MainFragment.setListElements(MainFragment.java:1003)
at com.amaze.filemanager.ui.fragments.MainFragment.lambda$loadlist$3(MainFragment.java:956)
at com.amaze.filemanager.ui.fragments.MainFragment.lambda$loadlist$3$MainFragment(Unknown Source:0)
at com.amaze.filemanager.ui.fragments.-$$Lambda$MainFragment$9qQv21X8JwPlLXi_cDXfu4p-_VI.onAsyncTaskFinished(Unknown Source:8)
at com.amaze.filemanager.asynchronous.asynctasks.LoadFilesListTask.onPostExecute(LoadFilesListTask.java:270)
at com.amaze.filemanager.asynchronous.asynctasks.LoadFilesListTask.onPostExecute(LoadFilesListTask.java:67)
at android.os.AsyncTask.finish(AsyncTask.java:695)
at android.os.AsyncTask.-wrap1(Unknown Source:0)
at android.os.AsyncTask$InternalHandler.handleMessage(AsyncTask.java:712)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6518)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start with the stack trace locations in com.amaze.filemanager.utils.Utils.getColor and MainFragment.initNoFileLayout, then follow reloadListElements, setListElements, and loadlist. Reproduce loading the list and quickly opening Settings, and consider the issue done when that sequence no longer crashes on the reported Android environment.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- android, java
- Domain
- mobile
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100