I have search the Stack Overflow beforewise, but haven't found an appropriate answer to my problem.
I have an Android application with the coordinator layout that has a nested ViewPager inside. If I scroll a RecyclerView that is inside of the first fragment in a View pager, the Toolbar is hidden and shown as intended. However, my other fragments in the ViewPager do not have nested scroll, so I would like to show Toolbar if it is hidden on ViewPager page change. I wonder if I can extend the CoordinatorLayout behavior to have it nicely done.
Thanks in advance! I will be happy to provide more details if needed.
The approximate code is (tried to strip all the unnecessary stuff): main_activity.xml
<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/coordinator_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar"
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: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:layout_below="#id/toolbar" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#id/tab_layout"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
and a scrolling fragment: fragment.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<android.support.v7.widget.CardView
android:id="#+id/add_word_card"
android:orientation="horizontal"
android:layout_height="wrap_content"
android:layout_width="match_parent">
<RelativeLayout
android:id="#+id/add_word_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/highlight">
<!-- some unrelated stuff -->
</RelativeLayout>
</android.support.v7.widget.CardView>
<android.support.v7.widget.RecyclerView
android:id="#+id/list"
android:layout_below="#id/add_word_card"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:context=".MainActivity"/>
I have found a couple of related questions like: this or this. But they focus mostly on layout problems, while I want to understand if it is real to have a nice solution to triggering Toolbar movement on demand.
So it seems that the answer is the following: wrap the Toolbar in AppBarLayout and in the code use something like: appBarLayout.setExpanded(false, true);
This does the trick for me.
Related
I have fragment, which doesn´t cointains toolbar. Toolbar must stay in activity. This fragment must show main view and bellow viewpager with two fragments. Each fragment is specific. First use custom layout, second use adapter. Each has different height. I tried a lot of libs and ideas, but none of them works as it should (it made scroll longer/shorter than it should or it made crazy UI overlays).
I am trying to do UI where it looks that this all is one layout, meaning, it is scrollable from up to bottom. But I can´t figure it out. I was thinking to use CoordinatorLayout, but I have no idea how.
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/res-auto"
android:id="#+id/main_content"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="200dp"
android:background="#FF0000"
android:orientation="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="ABCDEFGH" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="GHIKJ" />
</LinearLayout>
<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.CoordinatorLayout>
How to make this as scrollable layout in fragment without using toolbar references?
Update: Yes, here are some pictures, I hope it is more clear now.
Wrap your LinearLayout inside an AppBarLayout. Actually AppBarLayout extends LinearLayout so you could just replace your LinearLayout with it.
Even if your app doesn't have a toolbar or an app bar, the AppBarLayout is the view that CoordinatorLayout coordinates with.
Adding the AppBarLayout should provide the behavior you're looking for.
This root fragment layout seems to working. I am not sure that this is best solution, but it works.
Note: I replaced listview by standard LinearLayout as root container and inflate child layouts (items) there.
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout
android:id="#+id/main_content"
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:layout_width="match_parent"
android:layout_height="250dp"
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:layout_scrollFlags="scroll|enterAlways">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
</android.support.design.widget.CollapsingToolbarLayout>
</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.CoordinatorLayout>
Child fragment (for viewpager):
<?xml version="1.0" encoding="utf-8"?>
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<LinearLayout
android:id="#+id/childFragment"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"/>
</android.support.v4.widget.NestedScrollView>
Hello I'm attempting to simply put my content below the toolbar but at the moment when I run my application some of the content is hidden behind it when it should be below it.
I have read up about using a frame layout to attempt to separate it but I have come a little stuck. I'm currently using a basic android studio navigation drawer template provided with the software and was wondering what changes I have to make.
My coordinator layout
<android.support.design.widget.AppBarLayout
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"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
</android.support.design.widget.CoordinatorLayout>
My drawer layout
<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"
android:fitsSystemWindows="true"
tools:openDrawer="start">
<include
layout="#layout/app_bar_main"
android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView
android:id="#+id/nav_view"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_main"
app:menu="#menu/activity_main_drawer" />
</android.support.v4.widget.DrawerLayout>
What changes do I need to make?
Many ViewGroups allow their children to overlap. These include FrameLayout, RelativeLayout, CoordinatorLayout, and DrawerLayout. One that does not allow its children to overlap is LinearLayout.
The answer to your question really depends on what the end result should be. If you are trying to just have a Toolbar that is always on screen and some content below it, then you don't need a CoordinatorLayout and AppBarLayout at all, you can just use a vertical LinearLayout with two children:
<LinearLayout android:orientation="vertical" ...>
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
... />
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
... />
</LinearLayout>
Note layout attributes of the FrameLayout.
If you want to do the fancy stuff where the toolbar scrolls on and off the screen as you scroll the content, then you need an AppBarLayout and you need to give your content area a special attribute like this:
<android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
... >
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll"
... />
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/fragment_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
... />
</android.support.design.widget.CoordinatorLayout>
app:layout_behavior="#string/appbar_scrolling_view_behavior"
Add this code to your frame tag
As #Brian Hoang and #Karakuri said using the layout_behaviour property:
app:layout_behavior="#string/appbar_scrolling_view_behavior"
seems to be a very good solution. Even if you don't have any animations at the moment but you plan to have in the future then you can still keep the CoordinatorLayout and an AppBarLayout in case you want to add animations in the future.
What the property seems to do in general from my understanding, is to calculate the height of the whole AppBarLayout UI component. The UI component that uses the layout_behaviour property with the #string/appbar_scrolling_view_behaviour will automatically be shown exactly below the AppBarLayout regardless of what the height is.
In this way there is no need to hardcode any top margins in the UI that is supposed to be under the AppBarLayout.
In the code below the include_app_bar_with_tabs_layout (AppBarLayout) has a fixed height of 200dp (it can be wrap_content or anything else). Then the RelativeLayout that contains the content of the screen uses the layout_behaviour property.
Have a look at the code and UI image below:
<?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">
<include
layout="#layout/include_app_bar_with_tabs_layout"
android:layout_width="match_parent"
<!-- this can be anything, even wrap_content -->
android:layout_height="200dp" />
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/Green"
<!-- this tells it to be below the include_app_bar_with_tabs_layout (AppBarLayout) -->
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.v4.view.ViewPager
android:id="#+id/view_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/adView" />
<com.google.android.gms.ads.AdView
android:id="#id/adView"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
app:adSize="BANNER"
app:adUnitId="#string/banner_ad_unit_id"
tools:background="#color/green"
tools:layout_height="50dp" />
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>
I have the current setup:
<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/coordiator_layout_in_main"
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.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"/>
</android.support.design.widget.AppBarLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.design.widget.NavigationView
android:layout_width="170dp"
android:layout_height="match_parent"
android:fitsSystemWindows="true"/>
<FrameLayout
// I place a fragment containing a viewpager containing fragments that contain a recyclerview....
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_toRightOf="#+id/nav_view">
</FrameLayout>
</RelativeLayout>
<FrameLayout
android:id="#+id/settings_frame"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:visibility="invisible">
</FrameLayout>
<android.support.design.widget.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="#drawable/ic_refresh"
app:layout_anchor="#id/coordiator_layout_in_main"
app:layout_anchorGravity="bottom|right|end"
app:layout_behavior="com.material.widget.MyFloatingActionButtonBehavior" />
</android.support.design.widget.CoordinatorLayout>
Now everything work as expected if I scroll inside the framelayout that contains the fragments, the toolbar slides in and out as I want
Now the point is that I would like to disable the toolbar sliding in and out if I scroll the NavView which is on the side of the framelayout (and inside the relativelayout)
But no matter if I remove all scrolling behaviors the toolbar keeps on sliding in and out (only way to disable it is remove the scroll flags form the appbarlayout, but that disable all sliding in and out of the tolbar)
Please what am I missing here? Aren't the scolling behaviours supposed to pass the scroll events to the CoordinatorLayout?
Unfortunately, NavigationView contains NavigationMenuView which is RecyclerView and so it supports nested scrolling and moves AppBarLayout when scrolled. The best way to solve this problem would be to move NavigationView out of CoordinatorLayout. If it's not possible you can try the following code, which I haven't tested.
final RecyclerView navigationMenuView =
(RecyclerView) findViewById(R.id.design_navigation_view);
navigationMenuView.setNestedScrollingEnabled(false);
Please take into account that even if this code works it can break when the Design library is updated.
Move your NavigationView inside a DrawerLayout and the CoordinatorLayout inside the main content of the DrawerLayout.
From docs:
NavigationView is typically placed inside a DrawerLayout.
<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_layout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true">
<!-- Your contents -->
<android.support.design.widget.NavigationView
android:id="#+id/navigation"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_gravity="start"
app:menu="#menu/my_navigation_items" />
</android.support.v4.widget.DrawerLayout>
try this,
Put this activity_screen.xml
<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"
android:fitsSystemWindows="true" tools:openDrawer="start">
<include layout="#layout/app_bar_screen" android:layout_width="match_parent"
android:layout_height="match_parent" />
<android.support.design.widget.NavigationView android:id="#+id/nav_view"
android:layout_width="wrap_content" android:layout_height="match_parent"
android:layout_gravity="start" android:fitsSystemWindows="true"
app:headerLayout="#layout/nav_header_home_screen"
app:itemIconTint="#color/app_theme_color"
app:menu="#menu/activity_home_screen_drawer" />
</android.support.v4.widget.DrawerLayout>
Put this app_bar_screen.xml
<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.test.app.HomeScreenActivity">
<android.support.design.widget.AppBarLayout
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"
android:background="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay"/>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_screen" />
</android.support.design.widget.CoordinatorLayout>
Put this content_screen.xml
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/app_bar_home_screen"
android:id="#+id/content_frame"
android:background="#android:color/white"
tools:context="com.test.app.HomeScreenActivity">
</RelativeLayout>
Remove this line of codeapp:layout_scrollFlags="scroll|enterAlways" from your ToolBar. Worked in my case.
For anybody who might be interested this is how I dealt with the issue.
I created my custom version of the NavigationView by copying the relevant files form the source,
they are:
NavigationView.java
NavigationMenuItem.java
NavigationMenuPresente.java
NavigationMenuView.java
ThemeUtils.java
Fix the imports so that the new NavigationView points to the newly copied files.
And finally add this setNestedScrollingEnabled(false) to the constructor of NavigationMenuView.
This is because, how #Michael correctly pointed out the NavigationMenuView is a RecyclerView, and as such it passes its scrolling events to the NestedScrollingParent (the CoordinatorLayout), by setting setNestedScrollingEnabled(false) we disable this behaviour and we get the desired result (scrolling the NavView does not expand/collapse the AppBar)
So, I have this main activity layout using CoordinatorLayout to display a toolbar and tabs below it:
<android.support.design.widget.CoordinatorLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res-auto"
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: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:elevation="0dp"
local:layout_scrollFlags="scroll|enterAlways"
local:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="4dp"
local:tabMode="fixed"
local:tabGravity="fill"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:foreground="#drawable/header_shadow"
local:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
Then I have 2 fragment layouts, each for each of the 2 tabs I'll have. One fragment displays a ListView on its content:
<FrameLayout
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:foreground="#drawable/header_shadow"
tools:context=".StationsFragment">
<android.support.v4.widget.SwipeRefreshLayout
android:id="#+id/swipe_refresh_layout"
android:layout_height="wrap_content"
android:layout_width="match_parent">
<ListView
android:id="#+id/stations_listview"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</android.support.v4.widget.SwipeRefreshLayout>
</FrameLayout>
I want my toolbar to hide when I scroll the listview above, and it should be ok with the code I have, at least from what I read in this answer, but it's not working. At the moment I've tried to remove the FrameLayout from the fragment activity but that didn't solve the issue. I've considered hard coding the scroll event from the listview but if possible I really want this to be working with no code behind..
Thanks in advance.
This is because you are using CoordinatorLayout with ListView. You can change your implementation to RecyclerView to achieve correct scroll.
check my answer here. This may help you.
try change from
local:layout_scrollFlags="scroll|enterAlways"
to
local:layout_scrollFlags="scroll|exitUntilCollapsed"
I've an Activity with an NavigationDrawer and a Toolbar. I'm facing a problem when i want disappear a toobar when one of child fragment view is scrolled. Everything works fine except that there is some view coming up from the bottom which has the exact same size as the toolbar that is disappearing.
I made an GIF Animation that shows the problem. Due to my reputation i can not post the image directly but this gif and this gif shows the problem
I tried to figure out where this is coming from. It seems that its from my container FrameLayout where my fragment views are placed during runtime. I changed its background to green so i can identify it.
<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" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<include
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways"
layout="#layout/toolbar" />
<FrameLayout
android:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/darkGreen"
tools:context="org.cddevlib.breathe.MainActivity" />
</LinearLayout>
<fragment
android:id="#+id/navigation_drawer"
android:name="org.cddevlib.breathe.NavigationDrawerFragment"
android:layout_width="#dimen/navigation_drawer_width"
android:layout_height="match_parent"
android:layout_gravity="start"
tools:layout="#layout/fragment_navigation_drawer" /> </android.support.v4.widget.DrawerLayout>
This is the Toolbars Layout that is included
<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"
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlways"
android:fitsSystemWindows="true"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light">
</android.support.v7.widget.Toolbar>
And finally a snippet from the fragments view that is loaded:
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/black" >
<include
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways"
layout="#layout/toolbar" />
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/scrollView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:background="#color/white"
android:fillViewport="true" >
(...)
Note that i'm including the Toolbar again in that layout because i want different Toolbars for each fragment in my application by hiding / adding the toolbar.
toolbar = (Toolbar) ((View) vw).findViewById(R.id.toolbar);
if (toolbar != null) {
// // for crate home button
activity = (AppCompatActivity) getActivity();
activity.getSupportActionBar().hide();
toolbar.setBackgroundDrawable(new ColorDrawable((ColorUtils.getColorDark(DataModule.getInstance()
.getMainActivity()))));
activity.setSupportActionBar(toolbar);
activity.getSupportActionBar().setDisplayHomeAsUpEnabled(true);
}
SOLUTION
So thanks to sanat shukla answer is firgured out that my problem was that i used an AppBarLayout too much in my fragments view. In my fragments view, AppBarLayout was the main layout for all of my components, but it should not! Its intended to hold the toolbar content! Thanks
It's not an issue. It is the cool animation and support provided by android. When you use co-ordinator layout with Toolbar then it shows cool animation when scrolling the list.
The Design library takes this to the next level: using an AppBarLayout
allows your Toolbar and other views (such as tabs provided by
TabLayout) to react to scroll events in a sibling view marked with a
ScrollingViewBehavior
Read from here :
http://android-developers.blogspot.in/2015/05/android-design-support-library.html
If you don't want to hide your toolbar then don't use co-ordinator layout and appbar with toolbar.
Try this for fragment :
<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">
<! -- Your Scrollable View -->
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:id="#+id/scrollView1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
android:background="#color/white"
android:fillViewport="true" >
<android.support.v4.widget.NestedScrollView/>
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<include
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways"
layout="#layout/toolbar" />
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>