Multi tool use

How to fix supply a layout_width attribute in Android

In my application i want use RelativeLayout and for set size to this i use dimens .
I write my XML code such as below :

RelativeLayout

dimens

<RelativeLayout
android:id="@+id/listItemAuction_productImgLay"
android:layout_width="@dimen/size120New"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_centerVertical="true"
android:layout_marginBottom="@dimen/padding5"
android:layout_marginRight="@dimen/padding5"
android:layout_marginTop="5dp">
</RelativeLayout>


Dimen size : <dimen name="size120New">120</dimen>

<dimen name="size120New">120</dimen>

But when run application show me below error on Logcat :

Logcat

java.lang.RuntimeException: Binary XML file line #26: You must supply a layout_width attribute.


How can i fix it and us dimes?

dimes

1 Answer
1

Your width dimenension needs a unit

120 on its own is meaningless. You probably wanted 120dp. A dp is a unit of physical measurement, independent of resolution and this is how android maintains compatiblity with different devices.

EG:

<dimen name="size120New">120dp</dimen>


There are also other units, this answer explains well:
https://stackoverflow.com/a/2025541/2762277

dp

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