how to resolve android.content.res.Resources$NotFoundException: Resource ID #0x7f070187 type #0x4 is not valid

Question

im using below methods and im getting android.content.res.Resources$NotFoundException: Resource ID #0x7f070187 type #0x4 is not valid. Code:

float pageMargin = getResources().getDimensionPixelOffset(R.dimen.pageMargin);
        float pageOffset = getResources().getDimensionPixelOffset(R.dimen.offset);

 <dimen name="pageMargin">20</dimen>
    <dimen name="offset">30</dimen>

Any help is appreciated!

Answer 1

Ensure the dimensions have a defined unit:

https://developer.android.com/guide/topics/resources/more-resources#Dimension

In your case do as next. Notice the dp postfix after each value:

<dimen name="pageMargin">20dp</dimen>
<dimen name="offset">30dp</dimen>