I made an activity where image should collapse with toolbar and only text below would be visible. But When Toolbar being collapsed, there shows up a large gap between Toolbar and NestedScrollView
<android.support.design.widget.CoordinatorLayout xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/coordinatorLayout"
android:layout_width="match_parent"
android:background="#color/white"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/appBarLayout"
android:layout_width="match_parent"
app:elevation="5dp"
app:layout_collapseMode="pin"
android:fitsSystemWindows="true"
android:layout_height="wrap_content">
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:toolbarId="#+id/toolbar"
android:id="#+id/collapsing"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<com.noframe.farmisagronom.util.ResizibleImageView
android:id="#+id/image_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlwaysCollapsed"
android:minHeight="100dp"
android:maxHeight="400dp"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax"
app:layout_collapseParallaxMultiplier="0.5"
android:scaleType="centerCrop"/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:popupTheme="#style/ThemeOverlay.AppCompat.Light"
android:minHeight="?attr/actionBarSize"
app:layout_collapseMode="pin"
/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/nesteview"
app:layout_anchorGravity="top"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
.....
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
And this activity looks really good.
But when i scroll up the NestedScrollView this goes out of control.
This little space between toolbar and text is getting on my nerves.
note that if there is large text in NestedScrollView problem won't show up, but if NestedScrollView + collapsed tool bar doesn't take all phone screen, then there is a gap between them.
Adding:
android:layout_gravity="fill_vertical"
to the NestedScrollView worked for me.
Related
I am experiencing a weird toolbar scrolling issue. After I scroll the toolbar up and while it's moving upward with inertia (fling), I try to stop the child view by touching on the NestedScrollView and the toolbar is automatically expanded. (both views jump back as you can see toward the end of the attached gif.)
My layout is pretty straightforward. It's based on Android Studio project template.
Any thought of how to make the behavior looks more natural?
<?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:fitsSystemWindows="true">
<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="400dp"
app:layout_scrollFlags="scroll"
app:popupTheme="#style/AppTheme.PopupOverlay"/>
</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="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="#dimen/text_margin"
android:text="#string/large_text"/>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
you need to add a CollapsingToolbarLayout widget inside AppBarLayout. so when you scroll down/up the Toolbar/Appbar will collapse/expand smoothly.
The whole appbarlayout should be changed to:
<android.support.design.widget.AppBarLayout
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="#dimen/app_bar_height"
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:theme="#style/ThemeOverlay.AppCompat.Dark"
app:expandedTitleTextAppearance="#style/CollapsingToolbarTitleText"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="#dimen/article_keylines"
app:expandedTitleMarginStart="#dimen/md_keylines"
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_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
trying to build an Android app with a collapsingtoolbarlayout and a view element that always sticks directly below the bottom of the toolbar.
I think I'm just messing up my organization within the whole appbarlayout, but I can't seem to figure out the right ordering.
Any help would be great!
Thanks-
Here's my Activity xml
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="244dp"
android:fitsSystemWindows="true"
android:theme="#style/AppTheme.AppBarOverlay">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/toolbarLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:collapsedTitleTextAppearance="#style/CollapsedTheme"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleGravity="center|bottom"
app:expandedTitleMarginBottom="20dp"
app:expandedTitleMarginEnd="20dp"
app:expandedTitleMarginStart="20dp"
app:expandedTitleTextAppearance="#style/ExpandedTheme"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:theme="#style/ToolbarColoredBackArrow">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="180dp"
android:orientation="vertical">
</LinearLayout>
<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/AppTheme.PopupOverlay" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_product" />
And I'm trying to add in
<RelativeLayout
android:layout_below="#+id/app_bar"
android:layout_width="match_parent"
android:layout_height="20dp"
android:background="#color/blue"/>
So that it always stays below the toolbar, but when the collapsingtoolbarlayout scrolls to the top of the screen, it stays sticking below it.
An AppBarLayout extends LinearLayout - just add your RelativeLayout below your CollapsingToolbarLayout and don't include any layout_scrollFlags.
<AppBarLayout>
<CollapsingToolbarLayout />
<RelativeLayout />
</AppBarLayout>
I have a ViewPager with Fragments which containe a RecyclerViews. A CollapsingTollbarLayout is above the ViewPager. Everythings works fine except during a programmatically scroll on the RecyclerView. Then the AppBarLayout or CollapsingToolbarLayout doesn't responde.
Here is my base layout 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/coordinatorLayout"
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="256dp"
android:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:layout_behavior="de.wackernagel.playball.ui.FlingBehaviour">
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:id="#+id/collapsingToolbarLayout"
app:contentScrim="?attr/colorPrimary"
app:titleEnabled="false"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:contentDescription="#null"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:scaleType="centerCrop"
android:src="#drawable/showdown"
app:layout_collapseMode="parallax"/>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="#dimen/doubleActionBarSize"
android:minHeight="?attr/actionBarSize"
android:gravity="top"
app:titleMarginTop="14dp"
app:layout_collapseMode="pin"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"/>
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#android:color/transparent"
android:layout_gravity="bottom"
app:tabTextColor="#BEFFFFFF"
app:tabSelectedTextColor="#FFFFFFFF"
app:tabContentStart="#dimen/keyline_2"
app:tabMode="scrollable" />
</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"/>
My goal is it to collapse the CollapsingToolbarLayout during a programmatically scroll like a normal touch scroll.
I do this by
Activity get Fragment at current viewpager position
Fragment get LayoutManager from RecyclerView
LayoutManager scrollToPosition x
The scrolling behavior works on RecyclerView but the CollapsingToolbarLayout doesn't responde.
EDIT
Here is the layout of my fragments:
<?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">
<de.wackernagel.playball.views.EmptyAwareRecyclerView
android:id="#+id/recyclerView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="8dp" />
<TextView
android:id="#android:id/empty"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"/>
It is quite easy to solve this problem, it comes from the fact, that getNestedScrollingParentForType(type) in NestedScrollingChildHelper#dispatchNestedScroll returns null (support lib version = 27.0.2) for the non-touch scroll, so scrolling is not dispatched. Thus, one should do the following before scrolling programmatically:
if (!recyclerView.hasNestedScrollingParent(ViewCompat.TYPE_NON_TOUCH)) {
recyclerView.startNestedScroll(View.SCROLL_AXIS_VERTICAL, ViewCompat.TYPE_NON_TOUCH);
}
I was having this same problem, the AppBarLayout wouldn't collapse when the NestedScrollView was programmatically scrolled to the bottom. This resulted in Android miscalculating the bottom of the NestedScrollView when the AppBarLayout was expanded. When it was collapsed, it would scroll to the bottom correctly, but when it was expanded, it would come short of scrolling to the bottom by an amount equal to the height of the AppBarLayout. I found a simple fix for this by setting setExpanded to false immediately before attempting to scroll.
//scroll to the end of NestedScrollView
AppBarLayout appBarLayout = findViewById(R.id.app_bar_layout);
appBarLayout.setExpanded(false, true);
scrollView.post(() -> scrollView.fullScroll(View.FOCUS_DOWN));
...or if not using lambda expressions (i.e < Java 8)
//scroll to the end of NestedScrollView
AppBarLayout appBarLayout = findViewById(R.id.app_bar_layout);
appBarLayout.setExpanded(false, true);
scrollView.post(new Runnable() {
#Override
public void run() {
scrollView.fullScroll(View.FOCUS_DOWN);
}
});
<android.support.v4.view.ViewPager
android:id="#+id/htab_viewpager"
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/htab_appbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:layout_behavior="example.com.final.TabParallax.FlingBehavior"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/htab_collapse_toolbar"
android:layout_width="match_parent"
android:layout_height="360dp"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<FrameLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center_horizontal"
android:padding="0dp">
<ImageView
android:id="#+id/htab_header"
android:layout_width="match_parent"
android:layout_height="359dp"
android:background="#drawable/channel"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax" />
</FrameLayout>
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.TabLayout
android:id="#+id/htab_tabs"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#color/colorAccent1"
android:fitsSystemWindows="true"
android:gravity="bottom"
app:tabGravity="center"
app:tabIndicatorColor="#android:color/white"
app:tabMode="scrollable"
app:tabSelectedTextColor="#android:color/white"
app:tabTextColor="#android:color/white"
/>
</android.support.design.widget.AppBarLayout>
I have looked long and hard for a working answer to this problem and it seems either I'm working around a bug in the Design library, or there isn't an answer to what I want to do.
I have a CollapsingToolbar with Parallax Image and a ViewPager below. The ViewPager will only act on horizontal scrolls, while the dark box at the bottom is a TextView which will do vertical scrolls and collapse the Toolbar.
My solution now isn't great for several reasons - Here's a VIDEO to show why.
On API22 (and presumably 21), my TitleBar has a shadow under it, which breaks the continuity with the TabLayout below.
My ViewPager can only page horizontally. It needs to also accept vertical input and collapse the Toolbar.
I have a TextView which pages vertically, collapsing the ToolBar. So it does work, just not as an all-in-one solution with the ViewPager only.
Why the ViewPager can't take care of Horizontal and Vertical scrolling is beyond me. Maybe the functionality doesn't exist in the Design Library yet and there is no workaround. I have tried everything, looked everywhere. This is the best I can do:
<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"
tools:context=".MainActivity"
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="#dimen/app_bar_height"
android:fitsSystemWindows="true"
android:theme="#style/AppTheme">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:minHeight="?attr/actionBarSize"
android:fitsSystemWindows="true"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/md_white_1000"
android:scaleType="fitCenter"
android:src="#drawable/backdrop"
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"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorPrimary"
style="#style/CustomTabs"/>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="#dimen/viewpager_padding_default"/>
</LinearLayout>
<android.support.v4.widget.NestedScrollView
android:id="#+id/nestedScrollView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="#dimen/drawer_padding_default"
app:layout_behavior="#string/appbar_scrolling_view_behavior">
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_gravity="center"
android:padding="#dimen/drawer_padding_default"
android:textColor="#color/textColorPrimary"
android:background="#drawable/myrect" />
</android.support.v4.widget.NestedScrollView>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab_action"
android:src="#mipmap/ic_action_help"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="#dimen/drawer_padding_default"
android:scaleType="center"
app:borderWidth="0dp"
app:layout_anchor="#id/main_content"
app:layout_anchorGravity="bottom|right|end"/>
</android.support.design.widget.CoordinatorLayout>
1)create a separate layout for the viewPager fragments,use NestedScrollView
as a your root,and add app:layout_behavior="#string/appbar_scrolling_view_behavior",to it.
2)add app:layout_behavior="#string/appbar_scrolling_view_behavior" to the viewPager
I've been playing around with the Design Support Library and have come across a little problem that I hope someone can help me out with.
I'm using a CollapsingToolbar which contain an ImageView which collapses in parralax. In the CollapsingToolbar, I alse have a TabLayout which is supposed to scroll my ViewPager. My issue is that the ViewPager doesn't appear. The issue seems to arise only when I set my ViewPager layout_height to match_parent or wrap_content. If I set it to 600dp, then the problem is gone but then the view ends up being a fixed length which isn't very nice.
Any help would be grealty appreciated!
Here's my 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/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="#dimen/detail_backdrop_height"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:fitsSystemWindows="true"
>
<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"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
>
<ImageView
android:id="#+id/backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:layout_collapseMode="parallax"
android:src="#drawable/stock_image"/>
<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"
android:layout_gravity="top"
/>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"/>
</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">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/white"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
/>
</LinearLayout>
</android.support.v4.widget.NestedScrollView>
</android.support.design.widget.CoordinatorLayout>
You should remove the NestedScrollView and LinearLayout levels between your CoordinatorLayout and ViewPager:
<android.support.design.widget.CoordinatorLayout>
<android.support.design.widget.AppBarLayout>
...
</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:background="#android:color/white"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
The view with app:layout_behavior="#string/appbar_scrolling_view_behavior must be a direct child of CoordinatorLayout to be positioned correctly in relation to the AppBarLayout.