Android Question Automatic Activity Resize

[EvgenyB4A]

I have Android 5.1 device that has a custom function to show/hide navigation bar by broadcast sending.
The function does implement show and hide the bar, but the activity height doesn't change and after hiding there is black rectangle in place of bar. If you then restart the app the activity size is changed.
At the same application that was created by Android Studio the activity size is automatically changed after hide/show the bar.
I'd like to see the same behavior from B4A.

 

[Cableguy]

After hiding thé bar, call activity.invalidate to force a redraw

 

[EvgenyB4A]

After hiding thé bar, call activity.invalidate to force a redraw

I tried this and it doesn't help.

 

[Cableguy]

Then re-run the designer scripts...

 

[EvgenyB4A]

It also doesn't help. I think the problem is that the size of activity is not recalculated after show/hiding the bar.

 

[Cableguy]

As a last resort, try to call activity resume... but keep in mind that, if you have volatile data, you need to manage it too

 

[EvgenyB4A]

As a last resort, try to call activity resume... but keep in mind that, if you have volatile data, you need to manage it too

Also tried with same result. Maybe need any Java code or library?

 

[Cableguy]

Shouldn't be needed... can you reproduce it in a "simple" project and export it as zip?

 

[Erel]

Handling activity size changes is not simple. You can see an example here: https://www.b4x.com/android/forum/t...through-orientation-change.37511/#post-222072

 

[EvgenyB4A]

Handling activity size changes is not simple. You can see an example here: https://www.b4x.com/android/forum/t...through-orientation-change.37511/#post-222072

Thank you very much. The functions from the above example are useful and work in my project. I think that these features of activity resizes should be bult-in in B4A and appear in next releases.

 

[Erel]

In almost all cases activities do not change sizes. Instead the activity is recreated. You can do the same thing in this case with:

Activity.Finish
StartActivity(Me)