Today i have stucked in one of the weird problem in Toolbar custom header.
I am using the TextView in the center and ImageView which is at the right of the Toolbar. So i have used below lines of code in xml , please check it once.
<android.support.design.widget.AppBarLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:background="@android:color/white" android:theme="@style/AppTheme.NoActionBar.AppBarOverlay"> <LinearLayout 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="wrap_content" android:orientation="vertical"> <android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="#3EC3D6" app:layout_collapseMode="pin" app:popupTheme="@style/AppTheme.NoActionBar.PopupOverlay"> <LinearLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:gravity="center" android:orientation="horizontal"> <TextView android:id="@+id/headerTxt" style="@style/Base.TextAppearance.AppCompat.Medium" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ellipsize="marquee" android:gravity="center" android:layout_gravity="center" android:maxLines="1" android:text="Tile" android:textColor="@android:color/black" /> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/chat_new_icon" android:layout_gravity="right" /> </LinearLayout> </android.support.v7.widget.Toolbar> And getting these output from above code. 
I have used the RelativeLayout for it to come out from this problem, But it also NOT worked.Please check the below code for it
<android.support.v7.widget.Toolbar android:id="@+id/toolbar" android:layout_width="match_parent" android:layout_height="?attr/actionBarSize" android:background="#3EC3D6" app:layout_collapseMode="pin" app:popupTheme="@style/AppTheme.NoActionBar.PopupOverlay"> <RelativeLayout android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="horizontal"> <TextView android:id="@+id/headerTxt" style="@style/Base.TextAppearance.AppCompat.Medium" android:layout_width="wrap_content" android:layout_height="wrap_content" android:ellipsize="marquee" android:gravity="center" android:layout_gravity="center" android:layout_centerInParent="true" android:maxLines="1" android:text="Tile" android:textColor="@android:color/black" /> <ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:src="@drawable/chat_new_icon" android:layout_alignParentRight="true" android:layout_gravity="right" /> </RelativeLayout> </android.support.v7.widget.Toolbar> And getting another unexpected result please check it once. 
I have already refer this solution but it is not working for me.Please check the link once.
1. First Link
2. Second Link
3. Third Link
4. Forth Link
What i need that TextView should at the center of the Toolbar and ImageView should at the right of the Toolbar.Please help me to short out from this problem.


LinearLayoutinside theToolbarfrom the first layout you posted in the question.Views, in case my comments aren't that clear. Do note that theLinearLayoutthere is used just to stack those twoTextViews vertically. It doesn't fill theToolbar, or hold everything in it.