Develop Reference

Android pager hides Tab layout if it's positioned on top of it

I know this seems like a repeated questions but I don't understand why I can't position Tablayout on top of my ViewPager.
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="200dp">
<android.support.design.widget.TabLayout
android:id="#+id/tl_ads"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_alignParentBottom="true"
app:tabBackground="#drawable/tab_selector"
app:tabGravity="center"
app:tabIndicatorHeight="0dp"
app:tabMaxWidth="16dp"
app:tabPadding="2dp"/>
<android.support.v4.view.ViewPager
android:id="#+id/vp_ads"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/white"
android:elevation="2dp"
android:translationZ="2dp"
tools:targetApi="lollipop"/>
</RelativeLayout>
Tablayout works just fine if I replace the RelativeLayout with Linearlayout except that's not what I want.

Try below may help you.
Error here : android:layout_alignParentBottom="true"
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.design.widget.TabLayout
android:id="#+id/tl_ads"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#9ad195"
android:minHeight="?attr/actionBarSize" />
<android.support.v4.view.ViewPager
android:id="#+id/vp_ads"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_below="#+id/tl_ads"
android:background="#cccccc"
android:elevation="2dp"
android:translationZ="2dp"
tools:targetApi="lollipop" />

Try this:
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="200dp">
<android.support.v4.view.ViewPager
android:id="#+id/vp_ads"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#android:color/white"
android:elevation="2dp"
android:translationZ="2dp"
tools:targetApi="lollipop"/>
<android.support.design.widget.TabLayout
android:id="#+id/tl_ads"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:layout_alignParentBottom="true"
app:tabBackground="#drawable/tab_selector"
app:tabGravity="center"
app:tabIndicatorHeight="0dp"
app:tabMaxWidth="16dp"
app:tabPadding="2dp"/>
</RelativeLayout>
In a RelativeLayout, the widgets are added one on top of the other in the order in which they were declared. You had declared your tab layouts first and then declared the ViewPager. As a result of this, your tabs were being created but were being hidden by the ViewPager which occupied the entire RelativeLayout.

Toolbar and tablaout and fragment to share same background image

i am very new to android i am trying to display one background image to all my tool and tabs and fragment ,i got this background image to my toolbar and tab but how to show same background image to my fragment please any one help me how to do this
my Xml code
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:id="#+id/mainActivityBar"
android:layout_alignParentTop="true"
android:background="#drawable/actionbar"
app:contentInsetLeft="0dp"
app:contentInsetStart="0dp"
app:contentInsetEnd="0dp"
app:contentInsetRight="0dp"
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="President"
android:id="#+id/appname_1"
android:background="#android:color/transparent"
android:textColor="#ffffff"
android:layout_marginLeft="20dp" />
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
style="#style/myCustomTabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
android:layout_below="#+id/appname_1"
android:layout_alignParentEnd="true"
android:layout_alignParentStart="false"
android:layout_alignParentLeft="false"
android:layout_alignParentRight="true"
android:layout_alignParentBottom="false"
android:layout_alignLeft="#+id/appname_1"
app:tabGravity="fill"
app:tabMode="scrollable"/>
</RelativeLayout>
I want like below image please any one help me how to get like below image

Try to do the following:
Set the background of your TabLayout and Toolbar to transparent.
you can do that by this attribute: android:background="#android:color/transparent"
Then set the desired background image to your root view. (In your case its most probably a CoordinatorLayout - you didn't post the full layout).
If you need a code example let me know, but it should be pretty straightforward.
EDIT:
As you requested a code example. It's just as I described above.
Instead of CoordinatorLayout as the root layout you can use of course any other layout you need.
<?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:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background">
<android.support.design.widget.AppBarLayout
android:id="#+id/app_bar_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"
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="#android:color/transparent"
app:popupTheme="#style/AppTheme.PopupOverlay" />
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/transparent"/>
</android.support.design.widget.AppBarLayout>
</android.support.design.widget.CoordinatorLayout>

How to set android TabLayout in the bottom of the screen?

My question is how I can set the new android material design TabLayout to be in the bottom of the screen, kind of like Instagram's bottom toolbar.
If you have never seen Instagram's UI here is a screenshot of it :
. If there is a better way of approaching this, please feel free to post it here (with a code example if possible), I will greatly appreciate it.
Here is my code: activity_main.xml
<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"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app: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"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
I have tried many methods and workarounds suggested by the Stack Overflow community, but none seems to work with this new implementation of tabs in android. I know this UI design does not follow android design guidelines, so please don't comment on it. This UI design is vital to my application's UX and I would appreciate getting an answer for it. Thank you!

I believe I have the best simple fix. Use a LinearLayout and set the height of the viewpager to be 0dp with a layout_weight="1". Make sure the LinearLayout has an orientation of vertical and that the viewpager comes before the TabLayout. Here is what mines looks like:
<LinearLayout 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"
tools:context=".MainActivity"
android:orientation="vertical">
<include layout="#layout/toolbar" android:id="#+id/main_toolbar"/>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:background="#color/white"/>
<android.support.design.widget.TabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/blue"
/>
</LinearLayout>
And as a bonus, you should create your toolbar only once as toolbar.xml. So that way all you have to do is used the include tag. Makes your layout's more clean. Enjoy!
toolbar.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.Toolbar 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="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar" />
Update 11.2.2016: For those of you who don't know how to inflate the toolbar, here is how. Make sure that your Activity extends AppCompatActivity so you can call setSupportActionBar() and getSupportActionBar().
Toolbar mToolbar = (Toolbar) findViewById(R.id.main_toolbar);
setSupportActionBar(mToolbar);
getSupportActionBar().setDisplayHomeAsUpEnabled(true);

I suggest to use androidx library as android support libraries may get deprecated soon.
We can actually add a tab layout to a viewpager. Below is the code snippet that I used in my project
<androidx.viewpager.widget.ViewPager
android:id="#+id/viewPager"
android:layout_width="match_parent"
android:layout_height="match_parent">
<com.google.android.material.tabs.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#00a294"
android:layout_gravity="bottom" />
</androidx.viewpager.widget.ViewPager>
layout_gravity="bottom" is the syntax that puts the tab layout to the bottom

I had a same problem on Android Studio 2.2. This is what i did,
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
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:orientation="vertical"
android:layout_height="match_parent">
<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/ThemeOverlay.AppCompat.Light"
app:subtitleTextColor="#color/color_white"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:title="#string/call_log"
app:titleTextColor="#color/color_white"
/>
<RelativeLayout
android:id="#+id/content_frame"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="#+id/tabLayout" />
<android.support.design.widget.TabLayout
android:layout_alignParentBottom="true"
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"/>
</RelativeLayout>
</LinearLayout>

Better segregate both AppBarLayout and tabLayout like my code below. This way you can modify the tab bar and view pager properties independently.
<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: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"
app:layout_scrollFlags="scroll|enterAlways"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
</android.support.design.widget.AppBarLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<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:layout_above="#+id/tabs"/>
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabMode="fixed"
app:tabGravity="fill"
android:layout_alignParentBottom="true"/>
</RelativeLayout>
</android.support.design.widget.CoordinatorLayout>

android:layout_alignParentBottom="true"
Add this setting in
android.support.design.widget.TabLayout

Top of the page LinearLayout settings and set android:gravity="bottom". Thats it. Here is the code:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:minWidth="25px"
android:minHeight="25px"
android:gravity="bottom"> //Thats it.
<android.support.design.widget.TabLayout
android:layout_width="match_parent"
android:layout_height="45dp"
android:id="#+id/tabLayout1">
<android.support.design.widget.TabItem
android:icon="#drawable/home"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabItem1" />
<android.support.design.widget.TabItem
android:icon="#drawable/mypage"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabItem2" />
<android.support.design.widget.TabItem
android:icon="#drawable/friends"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabItem3" />
<android.support.design.widget.TabItem
android:icon="#drawable/messages"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabItem4" />
<android.support.design.widget.TabItem
android:icon="#drawable/settings"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="#+id/tabItem5" />
</android.support.design.widget.TabLayout>
</LinearLayout>

Replace Your TabLayout code with this
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:elevation="2dp" />

Fixed TabLayout and Content overlap AppBar

With the new Android Support Design library, there has come some cool features with regards to the AppBar.
I'm looking at implementing the same scroll effect as shown in the gif above. (Taken from Google Play Games -> My Games)
I've had a look at adding the following attribute to the nestedscrollview, placing the content above the appbar.
app:behavior_overlapTop
It works as expected when all the components inside appbar is set to scroll.
app:layout_scrollFlags="scroll"
If I want the TabLayout to be pinned at the top, the space below it will also be pinned. So it looks weird:
In short, is there any way to create the above using the new design library, or do I have to make it some other way?
Requested XML:
<android.support.design.widget.CoordinatorLayout
android:id="#+id/content"
android:layout_height="match_parent"
android:layout_width="match_parent">
<android.support.design.widget.AppBar
android:id="#+id/appbar"
android:layout_width="match_parent"
android:layout_height="164dp"
android:background="?attr/colorPrimary">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll"/>
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_scrollFlags="scroll|enterAlways"/>
</android.support.design.widget.AppBar>
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_height="match_parent"
android:layout_width="match_parent"
android:clipToPadding="false"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
app:behavior_overlapTop="32dp"/>
</android.support.design.widget.CoordinatorLayout>

Try this, Hope its work
Set app:layout_scrollFlags="scroll|enterAlways" in Toolbar
and android:scrollbars="horizontal" in TabLayout
As per my suggestion, you should remove this line app:layout_scrollFlags="scroll|enterAlways" in your TabLayout
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:app1="http://schemas.android.com/apk/res/com.samsung.ssc"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#color/white"
tools:context="com.samsung.ssc.LMS.LMSListActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorPrimary"
android:elevation="4dp"
android:minHeight="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways">
</android.support.v7.widget.Toolbar>
<android.support.design.widget.TabLayout
android:id="#+id/tabLayoutLMSList"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:scrollbars="horizontal">
</android.support.design.widget.TabLayout>
</android.support.design.widget.AppBarLayout>
<android.support.v4.view.ViewPager
android:id="#+id/viewpagerLMSList"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fabCreateNewLMS"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentEnd="true"
android:layout_alignParentRight="true"
android:layout_gravity="right|bottom"
android:layout_margin="#dimen/margin_15"
android:onClick="onNewLeaveCreateClick"
android:src="#drawable/ems_pencil"
app1:rippleColor="#color/ems_status_sky_blue_color"
app:backgroundTint="#color/ems_status_yellow_color"
app:borderWidth="#dimen/margin_0"
app:elevation="#dimen/margin_5" />

New android Support Design Library, scroll tablayout offscreen not working

Trying to use the new support design library. In my layout I want the ToolBar to stay at the top of the screen, but have the TabLayout go off the screen when the user scrolls down. But it looks like the ViewPager goes underneath the AppBarLayout. I used this blog post for reference
https://medium.com/ribot-labs/exploring-the-new-android-design-support-library-b7cda56d2c32
This is the layout, within the ViewPager holds Fragments that consist of recycler views
<?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:background="#color/material_grey50"
android:clickable="true">
<android.support.design.widget.CoordinatorLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/tabLayout" />
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar_list"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.TabLayout
android:id="#+id/tabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/toolbar_list"
android:background="?attr/colorPrimary"
android:scrollbars="horizontal"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
app:layout_scrollFlags="scroll|enterAlways"
app:tabGravity="center" />
</android.support.design.widget.AppBarLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab_post"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_alignParentRight="true"
android:layout_gravity="bottom|right"
android:layout_marginBottom="16dp"
android:layout_marginRight="16dp"
android:elevation="3dp"
android:src="#drawable/ic_videocam_white_36dp"
app:backgroundTint="#color/accent"
app:fabSize="normal" />
</android.support.design.widget.CoordinatorLayout>

Don't forget to set this in the viewpager:
app:layout_behavior="#string/appbar_scrolling_view_behavior"