Android Question A strange phenomenon?

[sailorxft]

When you use the following code, all text input boxes are narrowed when you click the text box. Just like this, just...

    Private gdwGradient As GradientDrawable
    Private cols(2) As Int
    Private cdwColor As ColorDrawable

    cols(0) = Colors.ARGB(255,100,255,255)
    cols(1) = Colors.Transparent
    gdwGradient.Initialize("TOP_BOTTOM", cols)
    gdwGradient.CornerRadius = 5

    spnUnittype.Background = gdwGradient
    cdwColor.Initialize(Colors.ARGB(255,255,255,255), 0dip)
    edtInput.Background = cdwColor

    edtOutput.Background = cdwColor
    spnInput.Background = cdwColor
    spnOutput.Background = cdwColor
    spnUnittype.DropdownBackgroundColor = Colors.ARGB(255,200,255,255)
    spnInput.DropdownBackgroundColor = Colors.ARGB(255,255,255,200)
    spnOutput.DropdownBackgroundColor = Colors.ARGB(255,255,255,200)

 

[Erel]

Never reuse a drawable. Each view should have its own instance.

 

[sailorxft]

The problem is solved. The codes that changes the background can not be just placed in "Activity_Create", and should added to "edtInput_FocusChanged". Just like this:

Sub edtInput_FocusChanged (HasFocus As Boolean)
    cdwColor.Initialize(Colors.ARGB(255,255,255,255), 0dip)
    edtInput.Background = cdwColor
    edtOutput.Background = cdwColor
End Sub

 

[DonManfred]

Just like this

this is the wrong solution.
As mentioned my Erel each drawable should br s new instance of the drawable

Private cdwColor As ColorDrawable
cdwColor.Initialize(Colors.ARGB(255,255,255,255), 0dip)
edtInput.Background = cdwColor

If you now need another ColorDrawable then create a new one....
It can be the same name.... The dirreference is that i DIM a new Instance and initialize this instance instead of reusing the old Object.

Private cdwColor As ColorDrawable
cdwColor.Initialize(Colors.ARGB(255,255,255,255), 0dip)
edtOutput.Background = cdwColor

If you now need another ColorDrawable then create a new one.... [and so on]