Find the appropriate RES resource and change its styles.xml
<style name= "Workspaceicon.portrait" >
<item name= "Android:drawablepadding" >0dp</item>
<item name= "Android:paddingleft" >4dp</item>
<item name= "Android:paddingright" >4dp</item>
<item name= "Android:paddingtop" > @dimen/app_icon_padding_top</item>
<item name= "Android:paddingbottom" >4dp</item>
<item name= "Android:textsize" >13sp</item>
</style>
Switch
<style name= "Workspaceicon.portrait" >
<item name= "Android:drawablepadding" >0dp</item>
<item name= "Android:paddingleft" >4dp</item>
<item name= "Android:paddingright" >4dp</item>
<item name= "Android:paddingtop" > @dimen/app_icon_padding_top</item>
<item name= "Android:paddingbottom" >4dp</item>
<item name= "Android:textsize" >13sp</item>
<item name= "Android:singleline" >false</item>
<item name= "Android:lines" >2</item>
</style>
How to display the long desktop icon name full in Android