I have a layout which has a toolbar in the top, followed by 2 toolbar sized bars under it and a listview below that. When someone scrolls on the listview, the 2 bars under the toolbar should scroll up and disappear under the toolbar.
I tried putting the app:layout_scrollFlags="scroll|enterAlways" only on those bars and not the toolbar but then they doesn't respond to scroll events.
If I put the same scrollFlags on the toolbar as well, they all respond but I want the toolbar to always display.
If I move the two bars above the toolbar, it works and only the two bars respond, but now the toolbar is below the bars and this is not the display I want.
Try putting the Toolbar you want to stay still at the top below your appBar. Your AppBar contains the views that you actually want to scroll, while the other one will be below it. Make sure to have your app bar have an elevation of 0dp or else it will go and be displayed above it (or change the elevation of your toolbar to be higher than the appbar). Also add the Height of the bar you want to stay at the top as the top margin of the appbar so it starts out below you view.
<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">
<!--Toolbars you want to move-->
<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:layout_marginTop="?attr/actionBarSize"
app:elevation="0dp">
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#android:color/holo_blue_light"
android:layout_gravity="bottom"
app:layout_scrollFlags="scroll|enterAlways"
/>
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#android:color/holo_orange_light"
android:layout_gravity="bottom"
app:layout_scrollFlags="scroll|enterAlways"
app:elevation="2dp"
/>
</android.support.design.widget.AppBarLayout>
<!--Toolbar you don't want to move-->
<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="#color/wallet_bright_foreground_holo_light"
app:popupTheme="#style/AppTheme.PopupOverlay"
/>
<!--Your content here -->
<FrameLayout
android:id="#+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<include layout="#layout/item_list" />
</FrameLayout>
</android.support.design.widget.CoordinatorLayout>
Related
Hiding toolbar code:
View toolbar = findViewById(R.id.toolbar);
toolbar.animate()
.translationY(-toolbar.getHeight())
.setInterpolator(new LinearInterpolator());
Toolbar xml
<android.support.design.widget.AppBarLayout
android:id="#+id/toolbar_layout"
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>
<View
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
I want to slide out to top a toolbar (hide it) and resize View to top.
I want to do it not with scroll but with any event (click).
Problem with above code is toolbar hides but remains empty place of AppBarLayout.
How to do it?
I found a reason.
It was because of: app:layout_behavior="#string/appbar_scrolling_view_behavior"
Deleting it fixed blank space problem but then you have to fix top margin for that bottom View.
I have a TabLayout that I want always pinned to the top, and a Toolbar below that, that when the view is scrolled, scrolls up into the TabLayout.
<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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".main.MainActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
android:animateLayoutChanges="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways"/>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
>
<ImageView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="#+id/imageView2"
android:src="#drawable/music_content"
android:contentDescription="#string/image_chooser_title"
/>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
You can see here that I've set the Toolbar
app:layout_scrollFlags="scroll|enterAlways"
and not set any scrolling flags for the TabLayout above, since I want it to remain pinned. However, using these settings, the AppBarLayout doesn't scroll at all. If I add a scroll flag to the TabLayout, then they both scroll, and the TabLayout doesn't remain fixed. Is there a way to have the TabLayout remain fixed, while the Toolbar below scrolls up "off screen?"
Pictures can be provided if needed
As per the Android Design Support Library blog post:
One note: all views using the scroll flag must be declared before views that do not use the flag. This ensures that all views exit from the top, leaving the fixed elements behind.
So what you want is not possible with AppBarLayout.
I have a layout (as generated by android studio) where i added a RelativeLayout to the AppBarLayout. The code is below and it looks like this:
Where i am stuck: What i want to achieve is when scrolling the Recyclerview down i want that the green relative layout (which has the id 'controlContainer') scrolls out with it, and when i scroll up it should scroll in (not just on the top but at any place i scroll up in the list)
The Toolbar on top should stay where it is.
<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=".MainActivity">
<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="?attr/actionBarSize"
app:popupTheme="#style/AppTheme.PopupOverlay"
/>
<RelativeLayout
android:id="#+id/controlContainer"
android:layout_width="match_parent"
android:layout_height="40dp"
android:background="#android:color/holo_green_dark"
app:layout_scrollFlags="scroll|enterAlways"></RelativeLayout>
</android.support.design.widget.AppBarLayout>
<FrameLayout
android:id="#+id/frameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<include layout="#layout/venue_list" />
</FrameLayout>
I thought that using app:layout_scrollFlags="scroll|enterAlways" in the view that should scroll away combined with app:layout_behavior="#string/appbar_scrolling_view_behavior"should achieve that, but it does not do anything. alternatively, when i add those fields to the toolbar itself both layouts scroll away - which is not what i want, i want the toolbar to stay always fixed.
would be nice if anyone could point me in the right direction here? (i hoped it would be possible with using coordinator layout and not hacking some layout manipulation with onscroll listeners?)
Try this in your toolbar code:
app:layout_collapseMode="pin"
app:layout_scrollFlags="scroll|enterAlways"
I found this link helpful: Scrolling Toolbar
I have a page that has a collapsing action bar effect, similar to this: http://xmodulo.com/hide-show-toolbar-scrolling-android.html. But I want the action bar to only show when the list is already showing the first item, not immediately whenever i scroll down. How can I achieve this?
The design library has a component called the AppBarLayout to accomplish this.
Include the library:
dependencies {
compile 'com.android.support:design:22.2.0'
}
Wrap the Toolbar in an AppBarLayout with the scrollFlags set to 'scroll', wrap the entire layout in a CoordinatorLayout, and add set the layout_behavior of your scrolling view to #string/appbar_scrolling_view_behavior.
<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.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"/>
<!-- If you have tabs you can include them below the toolbar -->
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</android.support.design.widget.AppBarLayout>
<!-- If you use a ViewPager, just add the layout_behavior to it instead of the RecyclerView -->
<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.design.widget.CoordinatorLayout>
I tried implementing a toolbar with gradient background (from black to transparent). The toolbar is inside an AppBarLayout, which is inside a CoordinatorLayour, because I want the Toolbar to slide off the screen when scrolling the screen (hance the scroll|enterAlways scroll flags). This works perfectly fine for pre-lollipop versions and looks like this:
But on lollipop this is what is displayed:
I tried other combinations of backgrounds on the toolbar and appbarlayout to get the toolbar to have the gradient background, but everything produces the same result. I tried searching for similar problems and found none.
<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:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/gradient">
<android.support.v7.widget.Toolbar
android:layout_height="wrap_content"
android:layout_width="match_parent"
android:background="#android:color/transparent"
app:layout_scrollFlags="scroll|enterAlways">
...
</android.support.v7.widget.Toolbar>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>
AppBarLayout forces an elevation. Since the toolbar is inside AppBarLayout and the toolbar is transparent, the side and bottom shadow of AppBarLayout became obvious.
Include app:elevation="0dp" inside your AppBarLayout. Hope it helps.
Put Toolbar and TabLayout inside the LinearLayout and set background attributes for LinearLayout as below code. It's worked and I used this code for my app.
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="72dp"
android:theme="#style/AppTheme.AppBarOverlay">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/appbar_bg">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="36dp"
android:background="#android:color/transparent"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/AppTheme.PopupOverlay">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
</LinearLayout>
</android.support.design.widget.AppBarLayout>