Android drawable background doesn't show on devices

Question

I want to give to a TextView a background. This background (classement_background.xml) is a drawable located in res/drawable.

Here's its code :

<?xml version="1.0" encoding="utf-8"?>

    <shape
        android:shape="ring"
        xmlns:android="http://schemas.android.com/apk/res/android" >

        <gradient
            android:startColor="#ff648add"
            android:endColor="#ff3656dd"
            android:type="linear"
        />
    </shape>

In the render window of the layout file, my background is set. (Android studio)

But for some reason, this drawable is not there anymore on a genymotion emulator nor an actual device.

I've been trying quite a few things (like making sure it isn't the first element in the drawable folder), but I can't figure out what's going on. Any thoughts ?

Here's the code from the textview itself : `

<TextView
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="E2"
    android:id="@+id/classement"
    android:layout_below="@+id/firstname"
    android:layout_centerHorizontal="true"
    android:textSize="85dp"
    android:layout_marginTop="15dp"
    android:padding="30dp"
    android:background="@drawable/classement_background"
    android:textColor="@android:color/white"/>`

please change code of your drawable xml. and there are lots of code available on internet. — Yogendra, Aug 20 '14 at 18:31
You have a typo: classement_background in the TextView XML and the filename is classemment_background — ajw, Aug 20 '14 at 18:33
The typo was only here, not on my actual program. It's edited. I don't see what is wrong with the drawable. I've seen a lot of time almost the same structure.. — Simon Genin, Aug 20 '14 at 18:39

score 1 · Answer 1 · edited Jun 20 '20 at 09:12

1

Add the android:useLevel="false" attribute to your shape tag. My IDE didn't display your shape in its preview window until I added it.

According to the docs:

android:useLevel

Boolean. "true" if this is used as a LevelListDrawable. This should normally be "false" or your shape may not appear.

edited Jun 20 '20 at 09:12

Community

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1

answered Aug 20 '14 at 18:49

ajw

499
6
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Same thing that I said to nastya. The problem is from somewhere else, I'll check it out further. – Simon Genin Aug 20 '14 at 19:03

score 0 · Answer 2 · answered Aug 20 '14 at 18:51

0

Try to set android:thickness for the shape. Maybe android doesn't provide a default thickness for the xml drawables.

answered Aug 20 '14 at 18:51

nastya

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still Didn't work. But I copied/pasted an exemple from the android developpers guide. And it still didn't work. So, I must have done something that doesn't allow those drawables to work right. – Simon Genin Aug 20 '14 at 19:02

score 0 · Answer 3 · answered Sep 17 '15 at 09:56

Maybe I will post something, that helped me. My backgroung id 1920x1920 pixels and display 1920x1080, so different size shouldn't be the problem.

I suppose that you have your background putted in some resource "drawable" folder (for example in drawable-hdpi) in Eclipse IDE. I had that either and on real device (Sony Xperia Z2) I haven't seen nothing.

Short answer:

I had to add my desired backgroung to every single drawable folder - drawable-ldpi, drawable-xxhdpi, ...

After this strange operation Sony finally recognized my backroung and accepted it. :-)

I hope this will help somebody.

Android drawable background doesn't show on devices

3 Answers3