Generally percent layouts can be a efficient way to utilising the screens of different resolutions percent wise in Android. It can be a better approach for using LinearLayout which is specified by weight.

To make use of Percent support for your applications. Add the below lines in build.gradle

compile 'com.android.support:percent:23.1.0'

Note: You have to use buildToolsVersion above 23.0.1 to make use of Percent support.

To add width percent wise:

app:layout_widthPercent="70%"

To add height percent wise:

app:layout_heightPercent="30%"

To add margin percent wise:

app:layout_marginPercent="10%"

To add margin left percent wise:

app:layout_marginLeftPercent="10%"

To add margin right percent wise:

app:layout_marginRightPercent="10%"

To add margin top percent wise:

app:layout_marginTopPercent="10%"

To add margin bottom percent wise:

app:layout_marginBottomPercent="10%"