Develop Reference

collapsing toolbar not hide all

I would like to be able to do this I know it is a CollapsingToolbarLayout but I do not know how to make some idea stop at a distance, thanks for the help
the result I want to get

A simple example of implementing a collapsing toolbar.
<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.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"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:contentScrim="?attr/colorPrimary">
<ImageView
android:id="#+id/expandedImage"
android:layout_width="match_parent"
android:layout_height="200dp"
android:src="#drawable/beach_scene"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.7"
/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin" >
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/white"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="#string/sample_string"/>
</android.support.v4.widget.NestedScrollView>
Replace the image inside the ImageView as per your requirement which will be visible when the toolbar is expanded.
Rest of the view can be implemented in the NestedScrollView as per your requirement.

Don't forget to give below property to your FloatingActionButton
app:layout_anchor="#id/appBar"
app:layout_anchorGravity="bottom|end"
Try something like this: almost similar to your requirements
<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="com.sample.foo.usingcoordinatorlayout.FabAndSnackbarActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBar"
android:layout_width="match_parent"
android:layout_height="300dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsingToolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="48dp"
app:expandedTitleMarginEnd="64dp"
app:title="#string/collapsing_toolbar">
<ImageView
android:id="#+id/toolbarImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
android:src="#drawable/bg"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="28sp"
android:lineSpacingExtra="8dp"
android:text="#string/long_latin"
android:padding="#dimen/activity_horizontal_margin" />
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_margin="#dimen/activity_horizontal_margin"
android:src="#drawable/mascot_icon"
app:layout_anchor="#id/appBar"
app:layout_anchorGravity="bottom|end" />
</android.support.design.widget.CoordinatorLayout>

Coordinator Layout Behaviours: To be more specific, the imageview anchored to AppBarLayout is not disappearing When scrolled

As you can see in the image (via link above), the image view does not disappear as FAB does. I need the exact same result as FAB
Please Help! :)

Without you posting code I can't really say much. but follow the layout's structure below. Keep in mind nested scroll view and the coordinator layout behaviors.
source: https://www.androidauthority.com/using-coordinatorlayout-android-apps-703720/
<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="com.sample.foo.usingcoordinatorlayout.FabAndSnackbarActivity">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBar"
android:layout_width="match_parent"
android:layout_height="300dp"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsingToolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginStart="48dp"
app:expandedTitleMarginEnd="64dp"
app:title="#string/collapsing_toolbar">
<ImageView
android:id="#+id/toolbarImage"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:fitsSystemWindows="true"
android:src="#drawable/bg"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="28sp"
android:lineSpacingExtra="8dp"
android:text="#string/long_latin"
android:padding="#dimen/activity_horizontal_margin" />
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:layout_height="wrap_content"
android:layout_width="wrap_content"
android:layout_margin="#dimen/activity_horizontal_margin"
android:src="#drawable/mascot_icon"
app:layout_anchor="#id/appBar"
app:layout_anchorGravity="bottom|end" />

fix toolbar top and header below

I have a header and a toolbar after it.
When scroll up the header the toolbar will be fix on top.
The problem is, I want the toolbar before header, on top of my activity, and when I scroll the header up the toolbar will only change its color.
toolbar
header (when scroll, change toolbar color)
any ideas how can I add the toolbar before header, on top of my activity and change its color when scroll up header?
<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:layout_width="match_parent"
android:layout_height="wrap_content">
<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:layout_scrollFlags="scroll|exitUntilCollapsed">
<RelativeLayout android:id="#+id/header"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="160dp"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll">
<ImageView
android:layout_width="40dp"
android:layout_height="40dp"
android:padding="0dp"
android:id="#+id/imageViewProfile"
android:adjustViewBounds="true"
android:cropToPadding="false" />
</RelativeLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/anim_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="?attr/colorPrimaryDark" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:scrollbars="none"
android:layout_alignParentLeft="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
</android.support.design.widget.CoordinatorLayout>

Try this:
<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:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<RelativeLayout android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="220dp"
android:background="#color/colorAccent"
app:layout_collapseMode="parallax">
<ImageView
android:layout_width="100dp"
android:layout_height="100dp"
android:padding="0dp"
android:id="#+id/imageViewProfile"
android:adjustViewBounds="true"
android:cropToPadding="false"
android:layout_centerHorizontal="true"
android:src="#mipmap/ic_launcher"/>
</RelativeLayout>
<android.support.v7.widget.Toolbar
android:id="#+id/anim_toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="?attr/colorPrimaryDark" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<!--
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_alignParentStart="true"
android:scrollbars="none"
android:layout_alignParentLeft="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior"/>
-->
<include layout="#layout/content_scrolling"></include>
</android.support.design.widget.CoordinatorLayout>
OUTPUT
Hope this will help~

How to pin icon from image to toolbar after scrolling same like WhatsApp group edit icon

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout 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.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:accessibilityLiveRegion="assertive"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:titleEnabled="true">
<ImageView
android:id="#+id/image"
android:layout_width="match_parent"
android:layout_height="350dp"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
android:src="#drawable/ic_launcher"
app:layout_collapseMode="parallax" />
<ImageView
android:id="#+id/imgicon1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_marginBottom="15dp"
android:fitsSystemWindows="true"
android:src="#drawable/fb"
app:layout_collapseMode="pin"
app:layout_collapseParallaxMultiplier="0.7" />
<ImageView
android:id="#+id/imgicon2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_marginBottom="15dp"
android:layout_marginRight="45dp"
android:fitsSystemWindows="true"
android:src="#drawable/insta"
app:layout_collapseMode="pin"
app:layout_collapseParallaxMultiplier="0.7" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:popupTheme="#style/ThemeOverlay.AppCompat.Dark"
android:title="Collapsing Toolbar"
app:layout_collapseMode="pin" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v7.widget.RecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"></android.support.v7.widget.RecyclerView>
</android.support.design.widget.CoordinatorLayout>
</RelativeLayout>
When I scroll the 2 icons are hide behind the image instead of setting inside the toolbar. Any idea how can i do this, I look into many examples but now working for me. I have implemented onOffsetChanged method of Appbarlayout and try to play with animation but didn't worked for me.

There is an accepted answer in Android: dynamically change ActionBar icon? refer this. You can get image from your image view and reduce its size to your requirement and can change icon using homeItem.setIcon(your image);

android: how to add a button with text inside collapsing toolbar

How to achieve the following layout. I could achieve without the add button. But how to add the ADD buttom and add button should disappear along with parallax of the image when scrolled up.
What i found is floating action buttons dont have facility to add text. I have to use button only.
My xml layout without the add button:
<android.support.v4.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/drawer_layoutplace1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.CoordinatorLayout
android:id="#+id/coordinatorLayout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="150dip"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginBottom="20dp"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/framelayout"
android:layout_width="match_parent"
android:layout_height="50dp"
android:layout_gravity="bottom"
app:layout_anchor="#+id/appBarLayout"
app:layout_anchorGravity="bottom"
app:layout_collapseMode="none">
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="50dp"
android:background="#ffffff"
android:gravity="bottom"
android:textAllCaps="false"
android:theme="#style/MyCustomTabLayout"
app:tabGravity="center"
app:tabIndicatorColor="#574ec1"
app:tabIndicatorHeight="2dp"
app:tabMode="scrollable"
app:tabSelectedTextColor="#574ec1"
app:tabTextColor="#8A000000" />
</FrameLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="fill_parent"
android:paddingBottom="56dp"
android:layout_marginTop="50dp"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.NavigationView
android:id="#+id/navigation_viewplace1"
android:layout_height="match_parent"
android:layout_width="wrap_content"
android:layout_gravity="start"
android:fitsSystemWindows="false"
app:itemTextColor="#8A000000"
app:itemIconTint="#8A000000"
app:menu="#menu/drawer_view" />
</android.support.v4.widget.DrawerLayout>
Also the text: "UDUPI SRIKRISHNA TEMPLE" which appears in double lines. is that possible.
I add title using
collapsingToolbar = (CollapsingToolbarLayout) findViewById(R.id.collapsing_toolbar);
collapsingToolbar.setTitle("Udupi Sri krishna Temple");
But the title shows only partially and shows ...
Instead i want it to be shown in multiple lines. is it possible

You can add button and image like this
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="150dip"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginBottom="20dp"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="bottom|end"
app:layout_collapseMode="parallax"
android:orientation="horizontal">
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Button"/>
</LinearLayout>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
in your main scrollable content put this code
<android.support.v4.widget.NestedScrollView
android:id="#+id/scroll"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:clipToPadding="false"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
</android.support.v4.widget.NestedScrollView>

You can add TextView, Button or any thing that you want to show on collapsible Layout.
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="150dip"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginBottom="20dp"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/header"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_collapseMode="parallax" >
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView
android:id="#+id/toolbar_title_text"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<Button
android:id="#+id/btntest"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
... />
.......
</LinearLayout>
</android.support.v7.widget.Toolbar>
</android.support.design.widget.CollapsingToolbarLayout>

In order to add back button (or any other button or image), you can add it to the Toolbar. If you would like to make this button shown always, whether toolbar is collapsed or not, you can add this line to the toolbar:
app:layout_collapseMode="pin"
If you want the button to disappear when toolbar collapses, replace this line with:
app:layout_collapseMode="parallax"
Then you can find this button/image by id from the activity/fragment and add listener to it. The full code for the Toolbar:
<com.google.android.material.appbar.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark">
<com.google.android.material.appbar.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|snap|exitUntilCollapsed"
app:contentScrim="#color/colorPrimary"
android:fitsSystemWindows="true"
app:title="#string/app_name">
<ImageView
android:layout_width="match_parent"
android:layout_height="250dp"
android:src="#drawable/tech"
android:scaleType="centerCrop"/>
<androidx.appcompat.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="parallax"
app:popupTheme="#style/ThemeOverlay.AppCompat.Dark">
<ImageView
android:id="#+id/toolbar_back_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/ic_back_arrow_left"/>
</androidx.appcompat.widget.Toolbar>
</com.google.android.material.appbar.CollapsingToolbarLayout>
</com.google.android.material.appbar.AppBarLayout>