Develop Reference

How to freeze the Toolbar at the top of the activity?

I'm trying to pin my toolbar at the top just like a normal 'Action Bar' just like when u click on a twitter post the toolbar up top stays there no matter how much u scroll down.
I found a lot of guides on "how to make the Toolbar collapse and other cool effects" but what i want from it, is to act as an Action bar and stay at the top, is there a simple way of accomplishing that ? without the use of (CoordinatorLayout, CollapsingToolbarLayout, ...) ?

Yes you can pin your toolbar at the top of the activity for that you have to create a layout file named toolbar_layoutlike this
<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="?android:actionBarSize"
android:background="#color/colorPrimary"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
app:contentInsetStartWithNavigation="0dp"
android:theme="#style/ToolbarStyle"
app:titleTextColor="#color/colorWhite"
app:subtitleTextColor="#color/colorWhite"
app:titleTextAppearance="#style/ToolbarStyle"/>
And in the activity layout i.e activity_main file include it as like this:-
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<include layout="#layout/toolbar_layout"/>
</LinearLayout>
And after that design accordingly the layout
Cheers Happy Coding.

You can make your layout xml like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize" />
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:fillViewport="true">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<!-- Your content here -->
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</LinearLayout>
or put RecyclerView instead of ScrollView + LinearLayout if you have a list

How to make Toolbar in AppBarLayout to have transparent background

I need to make transparent toolbar with buttons, but AppBarLayout adds white background to toolbar. Is there any way I can make toolbar which is in AppBarLayout to be transparent.
<android.support.design.widget.CoordinatorLayout
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="match_parent"
android:background="?attr/activityBackgroundColor"
>
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
app:elevation="0dp"
app:theme="#style/AppTheme.Overlay"
>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#android:color/transparent"
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlways"
app:theme="#style/Toolbar.Translucent"
/>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>

Most of the times we want the toolbar to be translucent because we want to show content behind it. The problem is that the colors of the content behind the toolbar can collide with the color of the toolbar elements/text (up/back arrow for example).
For that reason you'll see in a lot of implementations that the toolbar is actually not transparent but translucent with a gradient.
You can obtain this with the next code
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#drawable/background_toolbar_translucent" />
background_toolbar_translucent.xml
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android">
<gradient
android:angle="270"
android:endColor="#android:color/transparent"
android:startColor="#color/black_alpha_40"/>
colors.xml
<color name="black_alpha_40">#66000000</color>
You can play with different values on the gradient, what I've found is that for white elements, the black 40% works fine.
Another thing that you might want to do is to hide the title of the toolbar.
getSupportActionBar().setDisplayHomeAsUpEnabled(true);
And show the up affordance...
getSupportActionBar().setDisplayShowTitleEnabled(false);

Custom layout in Toolbar with TabLayout below

Right now, I have a normal looking Toolbar. What I want to do is add a custom layout between the Toolbar and the TabLayout, as shown in the picture below:
On the left is what my Toolbar looks like now, and on the right is what I want it to look like.
As you can see, I want to add an ImageView and two TextViews to the layout.
How can I achieve this?
Here is my current layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay" />
<android.support.design.widget.TabLayout
android:id="#+id/tablayout"
android:layout_width="match_parent"
android:layout_height="48dp"
app:layout_scrollFlags="scroll|enterAlways" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>

AppBarLayout extends LinearLayout, so you can add any number of views to your AppBarLayout: there's no reason to add the views specifically to your Toolbar.
You'll want to make sure you use the same layout_scrollFlags as your Toolbar if you want them to scroll the same.

Toolbar is just a ViewGroup, you can customize is as much as you want.
Try this :
<android.support.v7.widget.Toolbar
style="#style/ToolBarStyle"
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="#dimen/abc_action_bar_default_height_material">
<ImageView
android:layout_width="wrap_content"
android:contentDescription="#string/logo"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:src="#drawable/ic_launcher"/>
This should bring your imageView in center of toolbar.

Design Support Library, Toolbar buttons cropped ripple

I'm trying to utilize the CoordinatorLayout, AppBarLayout, CollapsingToolbarLayout, Toolbar and a parallax'ed ImageView. It looks like the ripple effect of the toolbar menu items is cropped. The following image displays the ripple effect of the back button in expanded and in partially collapsed mode. In complete collapsed mode the ripple effect is not shown at all. I think this is caused by the parallax'ed ImageView that is positioned there.
Layout:
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
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="match_parent">
<android.support.v4.view.ViewPager
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
</android.support.v4.view.ViewPager>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="224dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:weightSum="1.0">
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="56dp"
android:layout_weight="1.0"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="48dp"
android:scaleType="centerInside"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.4"/>
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="48dp"
android:background="#color/transparent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:tabGravity="fill"
app:tabMode="fixed"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
The ImageView displays a 9-patch'ed Image. Is there something wrong with the layout or is it a bug/inability in the design support library to draw the ripple ontop of the ImageView?

I think your solution is here.
You can try to add this line:
<item name="actionBarItemBackground">?attr/selectableItemBackground</item>
in the theme/style of your Toolbar.
If it doesn't work, add this in your Toolbar attributes:
android:background="#android:color/transparent"

Creating an actionbar or toolbar with custom xml and a drawertoggle

How can I create a toolbar/actionbar that combines the default actiondrawertoggle button (with the burger-arrow animation) with an edittext and a simple button like this?

Toolbar is a ViewGroup, so, you can use a Toolbar as a FrameLayout.
Here is a simple example, take a look at it:
<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_appcompat"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
//customize your toolbar content layout here.
</LinearLayout >
</android.support.v7.widget.Toolbar>
Hope you'll be inspired.