Button Background Selector

Question

I try to switch the background of Buttons if they are pressed. I build a Selector like the answer suggested here: Standard Android Button with a different color

Finally I want to put GradientDrawables inside, but for debugging purposes I just set a color, to check if it works. Here is my Selector

<?xml version="1.0" encoding="utf-8"?>
<selector
  xmlns:android="http://schemas.android.com/apk/res/android">

  <item android:drawable="@color/red"/>
  <item 
    android:state_focused="true"
    android:drawable="@color/white"/>
   <item 
    android:state_pressed="true"
    android:drawable="@color/white"/>
</selector>

Unfortunatly this doesn't work. I set the Selector as Button background and only see them in red color. What Am I doing wrong (Build Target 2.1)

score 20 · Accepted Answer · answered Sep 07 '11 at 14:18

20

put this at the end

item android:drawable="@color/red"

i mean as the third option, it will work. android checks the xml conditions from the start, the first tag doesn't have any condition, so it will always pick red, so you have put conditions first and then the default one.

answered Sep 07 '11 at 14:18

Yashwanth Kumar

28,931
15
65
69

hmm this doesn't work, because now they are white all the time – Rafael T Sep 07 '11 at 14:23
I don't think so. I have two buttons, and they both are white with no change on click – Rafael T Sep 07 '11 at 14:26
change the on click color it's white, may be to something other than white. – Yashwanth Kumar Sep 07 '11 at 14:29
I dont't know if this matters: I include the Button Layout inside my mainLayout, because I need them multiple times. – Rafael T Sep 07 '11 at 14:29
OHH my... big THX... it works now: Eclipse just want to fool me. I restarted Eclipse and it worked. I just have to put the "empty" item selector as last element... – Rafael T Sep 07 '11 at 14:33
if you see your selector, when you click your button background changes to white. so it's obvious you see white when you click on the button. – Yashwanth Kumar Sep 07 '11 at 14:33
ok, if I focus, or click them they change color. What do I have to set if it should stay at this color until the other button is clicked? – Rafael T Sep 07 '11 at 14:37
This made my day happy. – CoderSpinoza Jun 06 '15 at 08:24

score 1 · Answer 2 · answered Dec 30 '13 at 20:14

here is the code I use, and it works really well.

 <?xml version="1.0" encoding="utf-8"?>
    <selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:drawable="@drawable/button_clicked"
        android:state_pressed="true" android:state_enabled="true" />

    <item android:drawable="@drawable/button" android:state_enabled="true" />
    </selector>

here I use two images I made using photoshop as a background

the first is button_clicked and the second is button

copy it and change use your own resources.

hope I could help :)

Button Background Selector

2 Answers2

Linked