<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>

<style name="ClubToolbar" parent="Widget.AppCompat.Toolbar"> 
  <item name="contentInsetStart">0dp</item><!-- 设置该属性解决空白部分--> 
</style>

<!-- Base application theme. “NoActionBar”隐藏原有的Actionbar 设置Toolbar -->
 <style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
  //.....
  <item name="toolbarStyle">@style/ClubToolbar</item>
 </style>

<android.support.v7.widget.Toolbar xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/tool_bar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="@color/colorTheme"
    app:contentInsetStart="0.0dp"
    app:layout_scrollFlags="enterAlways|scroll"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    app:theme="@style/ToolbarStyle" />