I am trying to use CoordinatorLayout for the first time. From reading the docs and searching for tutorials, I didn't really understand anything about it.
I tried playing around with the code. So what I need is something like the following:
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
>
<android.support.design.widget.CollapsingToolbarLayout
android:layout_width="match_parent"
android:layout_height="300dp"
app:title="#string/the_title"
app:expandedTitleMarginBottom="94dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
app:expandedTitleTextAppearance="#style/CollapsingTextAppearance.Inverse"
app:contentScrim="?colorPrimary"
>
<ImageView
android:layout_width="fill_parent"
android:layout_height="match_parent"
android:src="#drawable/london_flat"
android:scaleType="centerCrop"
/>
<android.support.v7.widget.Toolbar
android:id="#+id/flexible.example.toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="#null"
app:layout_collapseMode="pin"
style="#style/ToolBarWithNavigationBack"
/>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
which I got from a tutorial and when scrolling up as the image moves out and the toolbar starts to get opaque the app:title="#string/the_title" is used to be moved up and be the actual text in the app bar once the image has moved out.
How can I modify this so that there is no text in app:title and as we scroll up either I set the actual text once the action bar becomes opaque or I use another TextView to move its copy there?
I'm newbie in Android so this might be the easy question for you guys but I'm stuck. I want to remove shadow of Toolbar so I followed thread how to remove shadow below actionbar with AppCompat.Light.NoActionBar? and using app:elevation="0dp" I was able to remove the shadow of Toolbar but that change the current height of Toolbar as displayed in [Image 2]. I want maintain the same exact size of Toolbar but without shadow. I also used android:fitsSystemWindows="true" from thread Android toolbar height difference but it move Profile text on top and also create white line at bottom [Image 3] .
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:theme="#style/AppTheme.AppBarOverlay"
app:elevation="0dp"
android:fitsSystemWindows="true">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay"
android:minHeight="?attr/actionBarSize"/>
</android.support.design.widget.AppBarLayout>
I guess we can use android:layout_height:Xdp or android:layout_height:Xpx but is this the last option or there is default way to do this.
I am trying to create some combined layout using CoordinatorLayout and also CollapsingToolbarLayout.
In the first state, when we on the most top page, and didn't scrolled yet, I want the toolbar to expend as shown below (yes, i did it):
In the second state, when starting to scroll down, the image and toolbar should disappear, as shown below (only tab will show):
And in the last state once I am at some point in the list (but not the top of the list) I want to start scrolling up, once I start scrolling up I want the toolbar (and not the expended one with the image) to start whowing, as shown below (if didn't reaches the top of the list, the image will not show, only the toolbar):
I was able to achive the the first state, but the other 2 state are problematic,
once toolbar is implemented inside CollapsingToolbarLayout, the flexability of what I can do with it outside of CollapsingToolbarLayout component is not clear.
I can't make the toolbar hide, if I do so, then it will only be shown once I reaches the top.
Anyways, my current XML (showing below) is in state where the first picture is implemented, but once I start scrolling down, the toolbar stay at the top and do not hide. Note: I must tell the toolbar to stay "pin" because if I didn't then the information inside the toolbar disappear, and only an empty toolbar will show (that's for another post, but it still interesting to know why this happen?).
here is my current xml:
<android.support.design.widget.CoordinatorLayout
android:id="#+id/benefit_coordinator_layout"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_material_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/main.collapsing"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|exitUntilCollapsed"
>
<include
android:id="#+id/toolbar_search_container"
layout="#layout/search_box"
android:layout_height="192dp"
android:layout_width="match_parent"
app:layout_collapseMode="parallax"
/>
<include
android:id="#+id/toolbar_benefit"
layout="#layout/toolbar_main"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:contentScrim="?attr/colorPrimary"
/>
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.TabLayout
android:id="#+id/benefit_tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/primaryColor"
app:tabIndicatorColor="#color/accentColor"
app:tabSelectedTextColor="#android:color/white"
app:tabTextColor="#android:color/black"
app:tabIndicatorHeight="4dp" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/benefit_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<include
layout="#layout/floating_btn_benefits"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_margin="16dp"
/>
</android.support.design.widget.CoordinatorLayou
I have fixed the issue, just to clerify, I wanted my Toolbar to be able to expand with a paralex image once it reaches the top, but I also wanted the toolbar to disappear if scrolling down, and show itself again (without the paralex image) once I scroll up. the paralex image effect should only displayed if I reaches the top.
So basically the solution is, change the component CollapsingToolbarLayout with the following attribute:
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
and also change toolbar component with the following attribute
android:minHeight="?attr/actionBarSize"
regarding my paralex effect image (which is my toolbar_search_container) I shouldn't add any layout_scrollFlags to it.
So why is it working?
To understand it, you need to know what is enterAlwaysCollapsed,
The enterAlwaysCollapsed effects views that added the minHeight attribute. this means, every child of CollapsingToolbarLayout which have minHeight will be effected by this attribute.
So my toolbar will be effected.
enterAlwaysCollapsed attribute definition in simple words:
Assuming enterAlways is declared and you have specified a minHeight, you can also specify enterAlwaysCollapsed. When this setting is used, your view will only appear at this minimum height. Only when scrolling reaches to the top will the view expand to its full height..."
Well, isn't this exactly what we want? (do not answer this retorical question ;) )
One more thing to add, the parallax component (toolbar_search_container) is depends on the toolbar to expand, and because the toolbar will expand only when it reaches the top, then this is all just working great!
The new code is :
<android.support.design.widget.CoordinatorLayout
android:id="#+id/benefit_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_material_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true">
<android.support.design.widget.CollapsingToolbarLayout
android:id="#+id/main.collapsing"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:layout_scrollFlags="scroll|enterAlways|enterAlwaysCollapsed"
>
<include
android:id="#+id/toolbar_search_container"
layout="#layout/search_box"
android:layout_height="192dp"
android:layout_width="match_parent"
app:layout_collapseMode="parallax"
/>
<include
android:id="#+id/toolbar_benefit"
layout="#layout/toolbar_main"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:minHeight="?attr/actionBarSize"
app:contentScrim="?attr/colorPrimary"
app:layout_collapseMode="pin"
android:fitsSystemWindows="true"
/>
</android.support.design.widget.CollapsingToolbarLayout>
<android.support.design.widget.TabLayout
android:id="#+id/benefit_tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/primaryColor"
app:tabIndicatorColor="#color/accentColor"
app:tabSelectedTextColor="#android:color/white"
app:tabTextColor="#android:color/black"
app:tabIndicatorHeight="4dp" />
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/benefit_pager"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<include
layout="#layout/floating_btn_benefits"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|right"
android:layout_margin="16dp"
/>
</android.support.design.widget.CoordinatorLayout>
Add this line of code to your CollapsingToolbarLayout
app:layout_scrollFlags="scroll|snap|enterAlways|enterAlwaysCollapsed"
Update
I was looking into this because when I changed the size of the spacer manually it caused stuttering and thought the CollapsingToolbarLayout will help fix it.
Reading https://stackoverflow.com/a/16103503/2482564 help me fix the stuttering by using ObjectAnimator and setting its duration to 0.
I'm keeping the question open in case someone has a solution with CollapsingToolbarLayout
Original question
I'm trying to achieve the following behavior with CoordinatorLayout, AppBarLayout, CollapsingToolbarLayout, Toolbar and TabLayout - whichever is appropriate for the task...
I want my initial view to look like this mockup
and the behavior when scrolling up should be:
the area marked in yellow disappears 1st
the area marked in blue disappears 2nd - it's only an area with color, no text
the area marked in pink - the tabs area, remains on the screen and is located at the top of the screen
I tried to work with the cheesesquare example and modified include_list_viewpager with the code below, but I get the normal collapsing tabs behavior with the shrinking title
<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.CollapsingToolbarLayout
android:id="#+id/collapsing_toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:minHeight="50dp"
android:background="#color/cardview_dark_background"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<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|snap"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"/>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="200dp"
android:layout_marginTop="50dp"
android:background="#color/cardview_shadow_start_color"
android:gravity="top"
android:orientation="vertical"
app:layout_collapseMode="pin">
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/cardview_light_background"/>
</LinearLayout>
</android.support.design.widget.CollapsingToolbarLayout>
</android.support.design.widget.AppBarLayout>
any idea what should be changed to get the behavior I want? I tried other methods of changing the size of the spacer area manually, but it causes flickering on screen since I'm intruding in the middle of the scroll event
Remove the app:layout_scrollFlags="scroll|exitUntilCollapsed" from your CollapsingToolbarLayout
Kindly assume everything is only for target and minSDK vesion is lollipop only.
What I want
I am trying to implement an activity similar to the following screen from play store.
I am focusing on the Hero image here. As you see,
1. hero image is drawn behind status bar. (Completely transparent. No protection)
2. Rest of the content is drawn below status bar. (Eg., Toolbar/ActionBar)
3. While scrolling the status bar is colored.
What I have done
I have used ScrimInsetsFrameLayout from GoogleIO app. Wrapped my hero image around this layout. Added proper styling in my theme. This is what I get
Help I need
I am still confused about fitsSystemWindows tag. When I set this to "true" on the hero image layout, nothing happens. That is status bar is transparent but image is drawn below status bar. If set to "false", I get the above result. Is there a clear article that explains the usage and behind the scenes of this tag.
I set the "insetForeground" on ScrimInsetFrameLayout to transparent. Also in the theme I set the status bar color as transparent. But still there is a protection over the image. How to make the status bar completely transparent.
Kindly help me with a pointers or demo projects. Also let me know if i am not clear or need more info.
This works for me.
layout.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: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: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:fitsSystemWindows="true"
app:contentScrim="?attr/colorPrimary"
app:expandedTitleMarginEnd="64dp"
app:expandedTitleMarginStart="48dp"
app:layout_scrollFlags="scroll|exitUntilCollapsed">
<ImageView
android:id="#+id/backdrop"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:scaleType="centerCrop"
app:layout_collapseMode="parallax" />
<android.support.v7.widget.Toolbar
android:id="#+id/parallax_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/fragmentContainer"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</android.support.design.widget.CoordinatorLayout>
and set statusBarColor attribute with transparent color at styles.xml v-21
Add the following line to the view where you don't want the toolbar to overlap:
app:layout_behavior="#string/appbar_scrolling_view_behavior"