Selector on background color of TextView

Question

I m attempting to change the background color of an Android TextView widget when the user touches it  I ve created a selector for that purpose  which is stored in res color selector xml and roughly looks like that    lt  xml version  1 0  encoding  utf-8   gt   lt selector xmlns android  http   schemas android com apk res android  gt       lt item         android state pressed  true          android color   color semitransparent white            gt       lt item         android color   color transparent            gt   lt  selector gt    The clickable attribute of the TextView is true  in case that s of interest   When I assign this selector to a TextView as android background   color selector   I m getting the following exception at runtime      ERROR AndroidRuntime 13130   Caused by  org xmlpull v1 XmlPullParserException  Binary XML file line  6   tag requires a  drawable  attribute or child tag defining a drawable   When I change the attribute to drawable  it works  but the result is looking completely wrong because the IDs appear to be interpreted as image references instead of color references  as the  drawable  suggests    What confuses me is that I can set a color reference  e g    color black   as the background attribute directly  This is working as expected  Using selectors doesn t work   I can also use the selector as the textColor without problems   What s the correct way to apply a background-color-selector to a TextView in Android

User · Answer

Benoit s solution works  but you really don t need to incur the overhead to draw a shape  Since colors can be drawables  just define a color in a  res values colors xml file    lt  xml version  1 0  encoding  utf-8   gt   lt resources gt       lt color name  semitransparent white  gt  77ffffff lt  color gt   lt  resources gt    And then use as such in your selector    lt  xml version  1 0  encoding  utf-8   gt   lt selector xmlns android  http   schemas android com apk res android  gt       lt item         android state pressed  true          android drawable   color semitransparent white    gt   lt  selector gt

User · Answer

The problem here is that you cannot define the background color using a color selector  you need a drawable selector  So  the necessary changes would look like this    lt  xml version  1 0  encoding  utf-8   gt   lt selector xmlns android  http   schemas android com apk res android  gt       lt item         android state pressed  true          android drawable   drawable selected state    gt   lt  selector gt    You would also need to move that resource to the drawable directory where it would make more sense since it s not a color selector per se   Then you would have to create the res drawable selected state xml file like this    lt  xml version  1 0  encoding  UTF-8   gt   lt shape xmlns android  http   schemas android com apk res android       android shape  rectangle  gt       lt solid android color   color semitransparent white    gt   lt  shape gt    and finally  you would use it like this   android background   drawable selector    Note  the reason why the OP was getting an image resource drawn is probably because he tried to just reference his resource that was still in the color directory but using  drawable so he ended up with an ID collision  selecting the wrong resource   Hope this can still help someone even if the OP probably has  I hope  solved his problem by now

User · Answer

Even this works    lt  xml version  1 0  encoding  utf-8   gt   lt selector xmlns android  http   schemas android com apk res android  gt       lt item android state pressed  true  android drawable   color dim orange btn pressed    gt       lt item android state focused  true  android drawable   color dim orange btn pressed    gt       lt item android drawable   android color white    gt   lt  selector gt    I added the android drawable attribute to each item  and their values are colors   By the way  why do they say that color is one of the attributes of selector  They don t write that android drawable is required   Color State List Resource   lt  xml version  1 0  encoding  utf-8   gt   lt selector xmlns android  http   schemas android com apk res android   gt       lt item         android color  hex color          android state pressed   true     false           android state focused   true     false           android state selected   true     false           android state checkable   true     false           android state checked   true     false           android state enabled   true     false           android state window focused   true     false     gt   lt  selector gt

User · Answer

An even simpler solution to the above    lt  xml version  1 0  encoding  utf-8   gt   lt selector xmlns android  http   schemas android com apk res android  gt       lt item android state pressed  true  gt           lt color android color   color semitransparent white    gt       lt  item gt       lt item gt           lt color android color   color transparent    gt       lt  item gt   lt  selector gt    Save that in the drawable folder and you re good to go

User · Answer

For who is searching to do it without creating a background sector  just add those lines to the TextView  android background   android attr selectableItemBackground  android clickable  true    Also to make it selectable use   android textIsSelectable  true

[android] Selector on background color of TextView

Examples related to android