Android Custom Toolbar/actionbar View left blank

After the recent customization of toolbar, it was found that the left side could not be fully populated, always left a little blank, and the workaround was found by viewing the style in the support package for the newly released V7.

View the parent of Wiget.AppCompat.Toolbar, as follows:

<style name= "Base.Widget.AppCompat.Toolbar" parent= "Android:widget" >      <item name= "titletextappearance "> @style/textappearance.widget.appcompat.toolbar.title</item>      <item name=" Subtitletextappearance "> @style/textappearance.widget.appcompat.toolbar.subtitle</item>      <item Name= "Android:minheight" >?attr/actionBarSize</item>      <item name= "Titlemargins" >4dp</item >      <item name= "maxbuttonheight" >56dp</item>      <item name= "Collapseicon" >?attr/ homeasupindicator</item>      <item name= "collapsecontentdescription" > @string/abc_toolbar_collapse_ description</item>      <item name= "Contentinsetstart" >16dp</item>  </style>

Where the Contentinsetstart attribute is the reason why the custom Actionbar cannot be fully populated.
Workaround:

The new style that is defined in Styles.xml inherits from Wiget.AppCompat.Toolbar as follows:

<style name= "Clubtoolbar" parent= "Widget.AppCompat.Toolbar" >          <item name= "Contentinsetstart" >0DP </item><!--Set this property to resolve a blank section--  </style>

Then rewrite the Toolbar property in your style.xml apptheme :

<!--Base Application theme. "Noactionbar" hides the original Actionbar Settings toolbar-    <style name= "Apptheme" parent= " Theme.AppCompat.Light.NoActionBar ">        //...        .. <item name= "Toolbarstyle" > @style/clubtoolbar</item>    </style>

Android Custom Toolbar/actionbar View left blank