How to center ImageView in a toolbar?

Question

Been trying to center a logo inside my toolbar. When i navigate to the next activity, the "up affordance" icon is present, and it will push my logo slightly to the right. How can I keep my logo at the center of the toolbar, without removing the up affordance icon?

This is my toolbar tag

<android.support.v7.widget.Toolbar
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:background="@color/primaryColor"
android:paddingTop="@dimen/app_bar_top_padding"
app:popupTheme="@style/ThemeOverlay.AppCompat.Dark"
app:theme="@style/CustomToolBarTheme">

<ImageView
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:src="@drawable/ic_android_logo"
    android:layout_gravity="center"
    android:paddingBottom="3dp"/>
 </android.support.v7.widget.Toolbar>

Answer 1

Like Kenan Begic, but i costumize it hehe.. Thanks to him. If you have a Menu in yout toolbar, You need to add app:contentInsetStart="50dp" on your Toolbar.

Actually it doesn't have to be 50dp, but so far I'm using 50dp.

<androidx.appcompat.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    app:contentInsetStart="50dp"
    app:layout_collapseMode="pin"
    app:menu="@menu/menu_main"
    app:popupTheme="@style/Theme.Travemates.PopupOverlay" >

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <ImageView
            android:layout_width="100dp"
            android:layout_height="25dp"
            android:layout_centerInParent="true"
            android:src="@drawable/ic_travemates" />

    </RelativeLayout>

</androidx.appcompat.widget.Toolbar>

Example:

Answer 2

Put the attribute android:contentInsetStart with 0dp in the Toolbar.

<android.support.v7.widget.Toolbar
    ...
    ...
    android:contentInsetStart="0dp">

Answer 3

You can do it as following it works for me :

<androidx.appcompat.widget.Toolbar
        android:id="@+id/mainToolbar"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?attr/colorPrimary"
        android:minHeight="@dimen/abc_action_bar_default_height_material">

        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:gravity="center">
            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:src="@drawable/headerLogo"
                android:contentDescription="@string/app_name" />
            </RelativeLayout>

    </androidx.appcompat.widget.Toolbar>

Answer 4

The easiest solution that works even with menu actions present is this:

 <android.support.design.widget.AppBarLayout
    android:id="@+id/apbMain"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    app:theme="@style/AppTheme.AppBarOverlay">

    <android.support.v7.widget.Toolbar
        android:id="@+id/tlbMain"
        android:layout_width="match_parent"
        android:layout_height="?android:actionBarSize"
        app:navigationContentDescription="@null"
        app:title="@null"
        app:subtitle="@null"
        app:popupTheme="@style/AppTheme.PopupOverlay">

            <ImageButton
                android:id="@+id/btnBack"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:paddingTop="12dp"
                android:paddingBottom="12dp"
                android:scaleType="centerInside"
                android:background="@null"
                android:onClick="onBackClickListener"
                android:src="@drawable/ic_navigation_back"
                android:visibility="@{showBackBtn ? View.VISIBLE : View.INVISIBLE}" />

            <ImageView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_margin="10dp"
                android:layout_gravity="center"
                android:src="@drawable/toolbar_icon" />

    </android.support.v7.widget.Toolbar>

</android.support.design.widget.AppBarLayout>

Answer 5

You need to use the AppBarLayout widget with the Toolbar widget and setting the contentInsetStart to 0dp. Otherwise the Toolbar will about 8dp of padding at the start (to insert the navigation buttons if needed)

Here's the working code:

<android.support.design.widget.AppBarLayout
    android:id="@+id/appBar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_alignParentStart="true"
    android:layout_alignParentTop="true"
    android:fitsSystemWindows="false"
    android:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar">

    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        app:contentInsetStart="0dp"
        app:popupTheme="@style/ThemeOverlay.AppCompat.Light">

        <ImageView
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:layout_gravity="left"
            android:adjustViewBounds="true"
            android:scaleType="centerInside"
            android:src="@drawable/company_logo" />

    </android.support.v7.widget.Toolbar>


</android.support.design.widget.AppBarLayout>

Also, make sure you use ?attr/actionBarSize as the height for the toolbar as this is the default actionBar height and will adjust to all the different screen sizes.

Answer 6

For the devs who are using vector drawable or SVG images.
This can be your background for toolbar, drawable_toolbar_background.xml

<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
    <item>
        <shape android:shape="rectangle">
            <solid android:color="@color/primary"/>
        </shape>
    </item>
    <item
        android:width="@dimen/toolbar_app_icon_width"
        android:height="@dimen/toolbar_app_icon_height"
        android:drawable="@drawable/ic_app_logo"
        android:gravity="center"/>
</layer-list>

and Yes, you have to fix the width and height of item inside drawable, although the vector drawable is already having fixed size.
This is your toolbar view,

<android.support.v7.widget.Toolbar
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="@drawable/drawable_toolbar_background"
    android:minHeight="?attr/actionBarSize"
    android:theme="?attr/actionBarTheme"/>

Answer 7

I am bit late to answer this , but have wonderful solution

 <android.support.design.widget.AppBarLayout 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:theme="@style/AppTheme.AppBarOverlay">
<FrameLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content">
    <android.support.v7.widget.Toolbar
        android:id="@+id/toolbar"
        android:layout_width="match_parent"
        android:layout_height="?attr/actionBarSize"
        app:contentInsetStart="0dp"
        app:contentInsetEnd="0dp"
        app:popupTheme="@style/AppTheme.PopupOverlay">



    </android.support.v7.widget.Toolbar>
    <RelativeLayout
        android:layout_width="match_parent"
        android:gravity="center"
        android:layout_height="wrap_content">


        <ImageView
            android:layout_width="wrap_content"
            android:layout_height="?attr/actionBarSize"
            android:contentDescription="@string/app_name"
            android:id="@+id/logoImageView"
            android:layout_centerInParent="true"
            android:adjustViewBounds="true"
            android:src="@drawable/toolbar_background" />
    </RelativeLayout>
</FrameLayout>


</android.support.design.widget.AppBarLayout>

and here is my toolbar_background.xml drawable

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
    <shape android:shape="rectangle">
        <solid android:color="@color/colorPrimary" />
    </shape>
</item>
<item>
    <bitmap
        android:src="@drawable/splash" android:gravity="center"
        />
</item>

Answer 8

You can do programmatically, that is the only way I've managed to fully center a logo in the toolbar.

Add to you activity:

@Override
public void onWindowFocusChanged(boolean hasFocus){

    // set toolbar logo to center programmatically
    Toolbar toolbar = (Toolbar) findViewById(R.id.main_toolbar);
    ImageView logo = (ImageView) findViewById(R.id.logo);
    int offset = (toolbar.getWidth() / 2) - (logo.getWidth() / 2);
    // set
    logo.setX(offset);

}

and your toolbar_main.xml:

<?xml version="1.0" encoding="utf-8"?>

<android.support.v7.widget.Toolbar
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    android:id="@+id/main_toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="@color/bg_yellow"
    android:elevation="4dp"
    android:fontFamily="@string/font_family_thin"
    app:contentInsetStartWithNavigation="0dp"
    android:layout_gravity="center_horizontal">

    <TextView
        android:id="@+id/title_toolbar"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:fontFamily="@string/font_family_light"
        android:textColor="@color/text_dark_xxx"
        android:textSize="@dimen/text_default"
        android:layout_centerVertical="true"
        />

    <ImageView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:srcCompat="@drawable/logo"
        android:id="@+id/logo"
        android:paddingTop="5dp" />



</android.support.v7.widget.Toolbar>

Answer 9

Set the image as a background of the toolbar, not as a child view.

<android.support.v7.widget.Toolbar
    android:id="@+id/detail_toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?android:attr/listPreferredItemHeight"
    android:background="@drawable/my_image"
    app:theme="@style/CustomToolBarTheme">

Answer 10

In javadoc, it says:

One or more custom views. The application may add arbitrary child views to the Toolbar. They will appear at this position within the layout. If a child view's Toolbar.LayoutParams indicates a Gravity value of CENTER_HORIZONTAL the view will attempt to center within the available space remaining in the Toolbar after all other elements have been measured.

It means you cannot do it unless you create a custom toolbar or remove the icon.