LAMW Android 6.0 Blank UI after resume
lazarus / 43-Android

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maxx · 2017-09-19 16:32

Hello! Applications created in LAMW start and work perfectly (Android
6.0 Xiaomi Redmi 4X).
Many thanks to the jmpessoa for your titanic work!
But when I exit the application by pressing the [home] button, and go
back by pressing the [menu] buttons,
there is nothing on the screen, only title application visible..
The old phone Motorolla Razr XT910 (Android 4.4) everything all right,
with the same programms.
It looks something like this:

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jmpessoa · 2017-09-19 16:41

Hi Maxx,

Please,  try some others demos.... "AppDemo1" is hard to debug...

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c4p · 2017-09-19 16:47

Go into the AndroidManifest.xml file (in the root of your project) and
change the option under 'application' android:launchMode="standard"
to:
android:launchMode="SingleTask"

Hopefully that will sort it.
Had the same issue here on Android 5.0.1, not had the issue return
since.

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maxx · 2017-09-19 17:19

Quote from: jmpessoa on September 19, 2017, 06:41:57 pm
Hi Maxx,

Please,  try some others demos.... "AppDemo1" is hard to debug...
I tried build several progs, and even build my own simplest "Hello-
World" with one big button and ShowMessage(..) on click handler.
The result is absolutely the same.

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maxx · 2017-09-19 17:23

Quote from: c4p on September 19, 2017, 06:47:21 pmGo into the
AndroidManifest.xml file (in the root of your project) and change the
option under 'application' android:launchMode="standard"
to:
android:launchMode="SingleTask"

Hopefully that will sort it.
Had the same issue here on Android 5.0.1, not had the issue return
since.
Sorry. Tried did not help..

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c4p · 2017-09-19 17:34



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maxx · 2017-09-21 06:03

I fixed this problem!
As I suspected the problem was in a damn MIUI8.xx.
Help advice from xda-developers
I disable memory optimization and animation scale effects:

Memory Settings
To enable Developer Options : Settings App > About Phone > MIUI
Version > Keep on tapping till it is enabled.
• Settings App > Additional Settings > Developer Options
- Window Animation Scale: Off
- Transition Animation Scale: Off
- Animator Animation Scale: Off
- Don't Keep Activities : Disabled
- Background Process Limit : Standard Limit
- Memory Optimization : Off
Now switch lamw apps works without errors!