Determine Device Type

[Rusty]

Is there a way, during Activity_Create/firsttime, to determine:
Device type
Device screen size/resolution
Device orientation
?
Thanks

 

[alfcen]

Please give this a try:

Dim lv As LayoutValues
lv = GetDeviceLayoutValues
Log(lv)

As for device orientation:

If Activity.Width > Activity.Height Then
  landscape = true
Else
  landscape = false
End If

 

[Rusty]

Thanks!

 

[Erel]

Note that you should not check these values only when FirstTime is true. When the device is rotated the activity is recreated and FirstTime will be false.

 

[Rusty]

Thanks, Erel. I discovered this and have a check in the Activity_Resume. This seems to work pretty well.

 

[Erel]

The best place to check it is in Activity_Create:

Sub Activity_Create (FirstTime As Boolean)
  If FirstTime = True Then
    'here you should initialize process global objects
  End If
  'Load layout and configure it
  
Dim lv As LayoutValues
lv = GetDeviceLayoutValues
Log(lv)
...
End Sub

Activity_Create will always be called when the orientation is changed. Setting the layout in Activity_Resume will also work but is less efficient as Activity_Resume can be called many times (each time your activity becomes visible).

 

[Rusty]

Thanks, Erel. Good information. Can you tell me what the purpose of the Activity_Resume multiple calls is.

 

[Erel]

See this tutorial: http://www.b4x.com/forum/basic4andr...87-android-process-activities-life-cycle.html

In a brief, each time your activity is going to the background Activity_Pause is called and when it becomes visible Activity_Resume is called.
The activity might be destroyed in between so these are important methods.