Subclass of RelativeLayout that supports percentage based dimensions and margins.

You can specify dimension or a margin of child by using attributes with "Percent" suffix. Follow this example:

<android.support.percent.PercentRelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<ImageView
app:layout_widthPercent="50%"
app:layout_heightPercent="50%"
app:layout_marginTopPercent="25%"
app:layout_marginLeftPercent="25%"/>
</android.support.percent.PercentFrameLayout/>

The attributes that you can use are:

• {@code layout_widthPercent}
• {@code layout_heightPercent}
• {@code layout_marginPercent}
• {@code layout_marginLeftPercent}
• {@code layout_marginTopPercent}
• {@code layout_marginRightPercent}
• {@code layout_marginBottomPercent}
• {@code layout_marginStartPercent}
• {@code layout_marginEndPercent}

It is not necessary to specify {@code layout_width/height} if you specify {@code * layout_widthPercent.} However, if you want the view to be able to take up more space than what percentage value permits, you can add {@code layout_width/height="wrap_content"}. In that case if the percentage size is too small for the View's content, it will be resized using {@code wrap_content} rule.