Reduce space between app logo and app name on action bar in android

Question

I have action bar along with app logo and app name. So I want to reduce space between app logo and app name. Below I have attached some screenshot.

A) Action bar I have

B) Action bar I want

Answer 1

Use Toolbar for this, it will provide greater customization.

Here is the sample example.

toolbar.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/toolbar"
    android:layout_width="match_parent"
    android:layout_height="?attr/actionBarSize"
    android:background="?attr/colorPrimary"
    app:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    app:layout_scrollFlags="scroll|enterAlways"
    app:layout_collapseMode="pin">
    <FrameLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <!-- This is a centered logo -->
        <ImageView
            android:id="@+id/toolbar_logo"
            android:src="@drawable/logo"
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:layout_marginRight="?attr/actionBarSize"
            android:layout_marginTop="4dp"
            android:layout_marginBottom="4dp"
            android:layout_gravity="center" />

        <!-- This is a centered title -->
        <!--
        <TextView
            android:id="@+id/toolbar_title"
            android:orientation="horizontal"
            android:layout_width="wrap_content"
            android:layout_height="fill_parent"
            android:layout_marginRight="?attr/actionBarSize"
            android:layout_gravity="center"
            android:gravity="center_vertical"
            android:visibility="gone"
            android:text="@string/app_name"
            android:textColor="@color/white"
            style="@style/TextAppearance.AppCompat.Widget.ActionBar.Title.Inverse"
            />
            -->

        <!-- This is a custom left side button -->
        <!--
        <ImageButton
            android:id="@+id/btn_settings"
            android:layout_width="?attr/actionBarSize"
            android:layout_height="?attr/actionBarSize"
            android:layout_marginRight="?attr/actionBarSize"
            android:layout_gravity="start|center_vertical"
            android:visibility="invisible"
            android:src="@drawable/ic_settings_white_24dp"
            style="@style/Widget.AppCompat.ActionButton" />
            -->

        <!-- This is a custom right side button -->
        <!--
        <ImageButton
            android:id="@+id/btn_search"
            android:layout_width="?attr/actionBarSize"
            android:layout_height="?attr/actionBarSize"
            android:layout_gravity="end"
            android:src="@drawable/ic_magnify_white_24dp"
            style="@style/Widget.AppCompat.ActionButton" />
            -->

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

Add any view inside toolbar as it is a viewgroup. Hopw this helps