Develop Reference

How to set toolbar title when a text view hide from screen?

How to implement that action which is shown in image
https://i.stack.imgur.com/MluU2.jpg

Use this piece of code to hide your 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:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
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"
android:background="?attr/colorPrimary"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.AppBarLayout>
<!-- Your Remaining Code -->
</android.support.design.widget.CoordinatorLayout>

Try using a collapsingToolbar layout. The material design example is found here but of significance is the below snippet
<com.google.android.material.appbar.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleGravity="top"
app:expandedTitleMarginStart="#dimen/shrine_toolbar_offset_start"
app:expandedTitleMarginTop="#dimen/shrine_toolbar_offset_top"
app:layout_scrollFlags="scroll|exitUntilCollapsed|snap">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/shrine_toolbar_image_offset_top"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.5"/>
<android.support.v7.widget.Toolbar
android:id="#+id/AppBar"
android:layout_width="match_parent"
android:layout_height="#dimen/shrine_toolbar_collapsed_height"
app:layout_collapseMode="pin"/>
</com.google.android.material.appbar.CollapsingToolbarLayout>

Android collapsible toolbar not working

I'm trying to make a collapsible toolbar in android. I want the image to collapse when the user scrolls.
XML:
<?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/lib/com.mridulahuja.kudamm" xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="com.mridulahuja.kudamm.activities.ProductInfoActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"
app:layout_collapseMode="pin"
android:minHeight="20dp"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<ImageView
android:id="#+id/imageView"
android:layout_width="match_parent"
android:layout_height="200dp"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax"
android:src="#drawable/splash_background"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
android:minHeight="100dp" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical" />
</ScrollView>
</android.support.design.widget.CoordinatorLayout>
JAVA:
CollapsingToolbarLayout collapsingToolbar =
(CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
collapsingToolbar.setTitle("Title");
It shows me this on android studio:
But when I run it, it just shows me this:
I've even tried to use android.support.v4.widget.NestedScrollView instead of ScrollView but it didn't work either.
Any idea what I'm doing wrong ???

Change the height of NestedScrollView to Wrap_content instead of match_parent, it is occupyig entire screen. Hope that works for you.

Disable toolbar scrolling when pressing on it

I tried to find someone with the same question but didn't really know what to search for. If someone else finds a simliar question, just let me know!
I've implemented the toolbar from the design library as follows:
<android.support.design.widget.AppBarLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<include layout="#layout/toolbar" />
<android.support.design.widget.TabLayout
android:id="#+id/mainTabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:tabGravity="fill" />
</android.support.design.widget.AppBarLayout>
and the toolbar layout:
<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/mainToolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:theme="#style/AppTheme.AppBarOverlay"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay" />
The AppBarLayout is a direct child to the CoordinatorLayout. Below the AppBar I have a RecyclerView that correctly lets the AppBar collapse when scrolling up.
However I'm able to press directly on the AppBar and then move my finger up and that way the toolbar collapses even though my RecyclerView is completely empty. I can expand it again by scrolling down on the toolbar again. This behavior doesn't happen when scrolling where the RecyclerView is.
I hope my problem is understandable. I'm using version 25.1 of the support library.
Thanks!
Edit: I tried the solutions below. Didn't change anything. Down below I added a video to show what my issue is. So it's really about the situation when the screen is not full (so no elements from the RecyclerView goes off the screen): If that's the case I don't want the Toolbar to hide at all. In other words: Only hide the toolbar if any elements from RecyclerView go off the screen.
https://drive.google.com/file/d/0Bzrw-IuZ9USuMURVVkRfb3dkRTQ/view?usp=sharing
If any more code is needed from my side just let know.

Try this
The entire project is at this location:
https://github.com/slidenerd/Android-Design-Support-Library-Demo
The below code works for me(This Git project belongs to slidenered. Thanx to him):
<android.support.v4.widget.DrawerLayout 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/drawer_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="slidenerd.vivz.navigationviewdemo.FourthActivity">
<android.support.design.widget.CoordinatorLayout
android:id="#+id/root_coordinator"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways">
<ImageView
android:layout_width="match_parent"
android:layout_height="192dp"
android:scaleType="centerCrop"
android:src="#drawable/rsz_bg_cover"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways">
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorAccent"
app:layout_collapseMode="pin"
app:tabIndicatorColor="#color/colorPrimary"
app:tabSelectedTextColor="#android:color/white"
app:tabTextColor="#EEE" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_margin="16dp"
android:src="#drawable/ic_add_black"
app:borderWidth="0dp"
app:fabSize="mini" />
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation_drawer"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="#menu/menu_drawer" />

if u want to fixed the toolbar when appbar is scrolled
try this:
<android.support.design.widget.CoordinatorLayout
...
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="200dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
...
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:titleEnabled="false">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:layout_gravity="top"
android:background="?attr/colorPrimary"
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.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/recycler_view"
android:scrollbars="vertical"
android:layout_width="match_parent"
android:layout_height="wrap_content"/>
put your toolbar under a CollapsingToolbarLayout and app:titleEnabled="false"
By setting it to false, you'll get the desired behaviour. The title stays fixed at the top of the screen.
you can do it programetically also:
CollapsingToolbarLayout.setTitleEnabled(false);

How to pin RelativeLayout in CollapsingToolbarLayout

I am using CollapsingToolbarLayout for my activity. Is there a way to pin RelativeLayout that contains Toolbar within instead of pinning Toolbar? I tried to do the following but the RelativeLayout does not pin on top when layout collapses.
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="0dp"
android:theme="#style/AppTheme.AppBarOverlay"
app:elevation="0dp"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="#color/pale_red"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
android:fitsSystemWindows="true">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="230dp"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax">
<android.support.v4.view.ViewPager
android:id="#+id/carViewPager"
android:layout_width="match_parent"
android:layout_height="230dp"/>
<LinearLayout
android:id="#+id/image_count"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center"
android:layout_gravity="bottom|center"
android:background="#android:color/transparent" />
</FrameLayout>
<RelativeLayout
android:id="#+id/toolbarLayout"
android:layout_width="match_parent"
android:layout_height="#dimen/toolbar_height"
app:layout_collapseMode="pin"
app:popupTheme="#style/AppTheme.PopupOverlay">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="#dimen/toolbar_height"
app:popupTheme="#style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
<TextView
android:id="#+id/activityTitle"
android:layout_width="match_parent"
android:layout_height="48dp"
android:layout_gravity="center"
android:gravity="center"
android:textSize="16sp"
android:text="#string/shop_info"
android:textColor="#color/white" />
</RelativeLayout>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_shop" />
</android.support.design.widget.CoordinatorLayout>

Like its name Collapsing,everthing except Toolbar is going to be collapsed when scroll up, the only way to pin it is to use "pin" on ToolBar, and only the ToolBar works with "pin".
Hence try placing your RelativeLayout outside of CollapsingToolBarLayout ,but inside of AppBarLayout, maybe that's what you need.
I solved it through this question:
How to use a TabLayout with Toolbar inside CollapsingToolbarLayout?
just treat your layout as the TabLayout mentioned in this question.
Hope it helps.

Hiding view below toolbar in coordinator layout

I'm working on creating a layout that works as follows:
Toolbar at the top
Toolbar below top toolbar
RecyclerView
And when I scroll, I want to hide the toolbar in between top toolbar and recyclerView. My Layout is as follows:
<android.support.design.widget.CoordinatorLayout
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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
tools:context="SomeActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar"
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="wrap_content"
android:elevation="4dp"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
app:popupTheme="#style/AppTheme.PopupOverlay"
app:layout_scrollFlags="scroll|enterAlways"/>
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="50dp"
android:minHeight="0dp"
android:id="#+id/info_bar"
app:popupTheme="#style/AppTheme.PopupOverlay"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
app:layout_scrollFlags="scroll|enterAlways" />
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/content_view"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
With these changes, both the toolbars become hidden when scrolling.
I just need to hide the second toolbar.
EDIT : If I can't get this to work, I'll be attaching a scroll listener to my recyclerView and resolving this that way. But I was wondering if there is a cleaner solution with scroll behaviors

Moved the top toolbar out of the coordinatorlayout and thus resolved this issue.
(Thanks to a colleague)
<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="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:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.CoordinatorLayout
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/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="end|bottom"
android:layout_margin="#dimen/fab_margin"
android:src="#drawable/ic_done" />
</android.support.design.widget.CoordinatorLayout>

If I understood properly, then you might want to collapse hole collapseableToolbar when it is scrolled up, instead it is showing some (20dp) space between ToolBar and listItem. for me it took half of the day, and problem is just a boolean value in coordinatorLayout. Just change "fitsSystemWindows" value from true to false.
with this you can hide image of the collapseToolBar upon scrolling.
<android.support.design.widget.CoordinatorLayout 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:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="false"
tools:context="com.thedeveloperworldisyours.imagecollapsingtoolbarlayout.ScrollingActivity">