我不能使用颜色值来设置布局的背景

Question

this is my layout

 <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="@color/c8" android:orientation="vertical" android:gravity="center_horizontal" tools:context="com.leo.accelerate.activity.SplashActivity"> <ImageView android:layout_marginTop="190dp" android:layout_width="146dp" android:layout_height="146dp" android:src="@mipmap/icon_splash" /> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginTop="36dp" android:src="@mipmap/boost_shanping_name" /> </LinearLayout>

I got the error:

     Caused by: android.content.res.Resources$NotFoundException: Resource "com.leo.accelerate:style/RtlOverlay.DialogWindowTitle.AppCompat" (7f0b0028)  is not a Drawable (color or path): TypedValue{t=0x1/d=0x7f0b0028 a=-1 r=0x7f0b0028}

I found the problem color according to the address value 0x7f0b0028

 find . -type f | xargs grep "0x7f0b0028"

result:
./app-default-release/res/values/public.xml:    <public type="color" name="c8" id="0x7f0b0028" />
./app-default-release/smali/com/leo/accelerate/R$color.smali:.field public static final c8:I = 0x7f0b0028

The problem code is the color value named c8 , It is used in the backgroud property in the layout

When I replace him with a drawable, the problem does not exist.

how can I fix this problem?

Answer 1

Can you please check your color value @color/c8 . Your color c8 value may be wrong. Try with another color, it is work. Try with android:background="@android:color/black" . If it is working then I'm sure that your color value is wrong. You can not use hex color value like 0x7f0b0028 .

Answer 2

It should work just fine, the only reasons I know of that might cause a problem are:

1. the name of the color attribute you provided is incorrect.

2. the value which you gave the attribute in your color value folder is not supported.

3. you wrote the background attribute more than one time in the xml item you're trying to draw.

4. the emulator you're using does not support this color.

Please make sure to check all of those reasons, if after making sure all of those 4 you still have a problem, contact us and we will try to further investigate your problem.

Best Regards, Lidor