ajwfrost
commented
10 months ago Just to confirm that this is what I think it is ... are you able to confirm if you have the runtimeInBackgroundThread setting in your application descriptor XML file, set to true? And these errors would presumably go away if this was set to false?
We've added some protection already for some functions but maybe not all, I'll review these to ensure we're not getting caught out (the issue happens due to the async nature of these calls now, because we are running AIR in a background thread but a lot of these UI updates have to then be in the main thread, and there's not sufficient coordination or thread-safety between these)
thanks
CT-PDept
Problem Description
Users are unable to click into a text input. Hooking the app up to Android Studio to check the logs I have observed several stack traces related to text input fields.
java.lang.NullPointerException: Attempt to invoke virtual method 'int com.adobe.air.AndroidStageTextAsync.getMaxChars()' on a null object reference at com.adobe.air.AndroidStageText.getMaxChars(AndroidStageText.java:403) at com.adobe.air.customHandler.callTimeoutFunction(Native Method) at com.adobe.air.customHandler.handleMessage(customHandler.java:34) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:237) at android.app.ActivityThread.main(ActivityThread.java:8167) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String com.adobe.air.AndroidStageTextAsync.getRestrict()' on a null object reference at com.adobe.air.AndroidStageText.getRestrict(AndroidStageText.java:376) at com.adobe.air.customHandler.callTimeoutFunction(Native Method) at com.adobe.air.customHandler.handleMessage(customHandler.java:34) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:237) at android.app.ActivityThread.main(ActivityThread.java:8167) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
java.lang.NullPointerException: Attempt to invoke virtual method 'android.graphics.Bitmap com.adobe.air.AndroidStageTextAsync.captureSnapshot(int, int)' on a null object reference at com.adobe.air.AndroidStageText.captureSnapshot(AndroidStageText.java:571) at com.adobe.air.customHandler.callTimeoutFunction(Native Method) at com.adobe.air.customHandler.handleMessage(customHandler.java:34) at android.os.Handler.dispatchMessage(Handler.java:107) at android.os.Looper.loop(Looper.java:237) at android.app.ActivityThread.main(ActivityThread.java:8167) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:496) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1100)
Which AIR SDK did you use?
50.2.3 50.2.4
Describe the affected environment:
I assume all Android. I have tried and successfully replicated on:
Android Physical: Galaxy S9 Android 10 Galaxy S10+ Android 12
Emulator: Pixel XL Android 13
Steps to Reproduce
Open the app from scratch.
If you go straight to the page and straight to the input it works as expected.
Once you click on another page and return, or if you went to some other pages first, stack traces are logged to Logcat when you enter the page and you are unable to click into the input field.
Give us a minimal example:
<s:TextInput id="searchBar" width="100%" height="100%" styleName="searchInput" change="searchBar_changeHandler(event)" prompt="{IconText.search}"/>There appear to be several other issues logged relating to Null Pointer exceptions, but none with the exact functions I am seeing in the logs.