Android Question (Closed) Set Elevation of WallPaper?

anOparator · Mar 28, 2019

I'm trying to place Label1 above changing wallpapers to confirm that a bunch of unseen images aren't displayed overnight but the only time I see Label1 is after the phone wakes from a long sleep, just before it gets covered by the wallpaper.

Ok, so I managed to make an app that lets me create a List of images for the wallpaper, and changes the wallpaper at set intervals, based on using this:

B4X:

Sub SetWallPaper(Bmp As Bitmap)
   Dim r As Reflector
   r.Target = r.RunStaticMethod("android.app.WallpaperManager", "getInstance", _
      Array As Object(r.GetContext), Array As String("android.content.Context"))
   r.RunMethod4("setBitmap", Array As Object(Bmp), Array As String("android.graphics.Bitmap"))
   Log("    NEXT  img # = " & Starter.imgCount)
   Panel1.Visible = True
'   Panel1.Elevation = 100dip     '   not
   Label3.Text = Starter.imgCount
End Sub

Am currently using a Widget to display the counting of the images but most of the app users are not going to drag the Widget onto the desktop.

How can I set the Elevation of WallPaper so that Label1 is always visible?
I am lost in the:

B4X:

Sub SetElevation(v As View, e As Float)
    Dim jo As JavaObject
    Dim p As Phone
   
    If p.SdkVersion >= 21 Then
        jo = v                                               ' What is v?      
        jo.RunMethod("setElevation", Array As Object(e))
    End If
End Sub

Thanks in advance.

DonManfred · Mar 28, 2019

anOparator said:
What is v?

anOparator said:
Sub SetElevation(v As View, e As Float)

The view given to this sub

anOparator · Mar 28, 2019

DonManfred said:
The view given to this sub

Yes, but is the Wallpaper a View? And is it referred to as 'r.Target'?
Would it be

B4X:

Sub SetElevation(r.Target, 0)
    Dim jo As JavaObject
    Dim p As Phone
 
    If p.SdkVersion >= 21 Then
        jo = r.Target
        jo.RunMethod("setElevation", Array As Object(0))
    End If
End Sub

Am just trying to keep Label1 visible above the Wallpaper.
Edit:
or since Panel1 is Label1's parent:

B4X:

 Sub Button1_Click
   SetElevation(Panel1, 10)
End Sub

B4X:

Sub SetElevation(v As View, e As Float)
   Dim jo As JavaObject
   Dim p As Phone  
   If p.SdkVersion >= 21 Then
       jo = v 
       jo.RunMethod("setElevation", Array As Object(e))
   End If
End Sub

this did not work.

anOparator · Mar 28, 2019

In Main module which has select images menu

B4X:

Sub Activity_Pause (UserClosed As Boolean)
   Activity.Finish             <<
End Sub

In module2 with Lable1, removed call to clrMe and set background to Transparent.

B4X:

 Sub SetWallPaper(Bmp As Bitmap)
' clrMe   ' removed this line             <<
   Dim r As Reflector
   r.Target = r.RunStaticMethod("android.app.WallpaperManager", "getInstance", _
      Array As Object(r.GetContext), Array As String("android.content.Context"))
   r.RunMethod4("setBitmap", Array As Object(Bmp), Array As String("android.graphics.Bitmap"))
   Label1.Text = Starter.picNmbr  ' img number from lstPicNum
End Sub

B4X:

 Sub clrMe
   Dim jo As JavaObject
   jo.InitializeContext
   jo.RunMethod("moveTaskToBack", Array(True))
   Panel1.Visible = True
End Sub

Removed the Widget, and Panel1 which was parent for Lable1.
It's probably ugly code but it works, and I'll come back to optimize it later.
ps: uggh. Since only 1 activity can be active, now that I see Label1 and the Wallpaper, I can't access onscreen app Widgets until I click the Back icon and that's when Lable1 stops being visible.

anOparator · Apr 2, 2019

Closed, am posting the question as it should have been posted.

Android Question (Closed) Set Elevation of WallPaper?

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DonManfred

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