iOS Question push button, color doesn't change

[electro179]

I have a strange effect

If there is a button in the bottom screen and I push the event is called but the text doesn't change the color. On the same button, a little higher the color changes

here a video:

 

[JanPRO]

You are using an gradient layer, so it's possible that the layer is higher than the button. To prevent this, be sure to renew the layer after you have changed the button size.

 

[electro179]

I remove the gradient color and I have the same issue

 

[Erel]

Please upload a small project (without gradients) that demonstrates this issue.

 

[electro179]

This project shows the problem.

There only 1 button
Each click call the event anywhere on the button but the color text doesn't change when I click at the bottom button

 

[Erel]

I tried it here and the text color is changed (iOS 9). Which version are you using?

Does it change the color if you are not changing the text inside the click event?

 

[electro179]

I make a new video on IPAD V.9

I have also a iphone 4 with IOS V. 7

There is a disabled area of 7 millimeter, along the entire length of IPAD/IPHONE

 

[Erel]

The click event is raised by the OS. I guess that Apple decided to ignore touches that are very close to the screen edges.

 

[ilan]

If you put a button to the bottom of your screen (default hight) does it work?

 

[electro179]

sorry but I don't understand

 

[ilan]

sorry but I don't understand

there is no issue with the bottom of the button, the issue is with the bottom of the screen.
when i put a very big button on my screen but the bottom of it is 10% up from the bottom of the screen, short clicks work perfect only if i put the button
bottom to the bottom of the screen only long click works.

i also put a small size button and the same behaver. i tried on the simulator ios 9.2 and there it works also on the bottom but on a real phone short (fast clicks)
does not work on the bottom of the screen (also on a small button and even if you click on the centre of the button)

i think erel is right, apple ignore clicks on the edges of the screen.

 

[electro179]

ok thank you

 

[strat]

Use this code to see click point accuracy on IOS devices. I used panel instead of button. You can test whole screen area by this code.

Sub Process_Globals
    Public App As Application
    Public NavControl As NavigationController
    Private Page1 As Page
    Private panel1 As Panel
    Private x1,y1,x2,y2 As Int
    Dim c As Canvas
End Sub

Private Sub Application_Start (Nav As NavigationController)
    NavControl = Nav
    Page1.Initialize("Page1")
    Page1.Title = "Tap the Screen"
    Page1.RootPanel.Color = Colors.White
    NavControl.ShowPage(Page1)
End Sub

Private Sub Page1_Resize(Width As Int, Height As Int)
    panel1.Initialize("panel1")
    Page1.RootPanel.AddView(panel1,0,0,100%x,100%y)
    panel1.Color=Colors.White
    c.Initialize(panel1)
End Sub

Sub Panel1_Touch(Action As Int, X As Float, Y As Float)
    Log(X&"  "&Y)
    x1=X
    y1=Y
    c.DrawLine(x2,0,x2,100%y,Colors.White,2)
    c.DrawLine(0,y2,100%x,y2,Colors.White,2)
    c.DrawLine(x1,0,x1,100%y,Colors.Red,2)
    c.DrawLine(0,y1,100%x,y1,Colors.Red,2)
    x2=X
    y2=Y
    c.Refresh
End Sub