puko puko - 4 months ago 168
Android Question

How to add bottom shadow tab layout

Hi i need add shadow under my tab layout (like in skype).

shadow_skype

My activity xml:

<RelativeLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<android.support.v7.widget.Toolbar xmlns:local="http://schemas.android.com/apk/res-auto"
android:id="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:background="@color/splashGreenTop"
local:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
local:popupTheme="@style/ThemeOverlay.AppCompat.Light" />
<android.support.design.widget.TabLayout
android:id="@+id/tab_layout"
android:layout_below="@+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:elevation="0dp"
android:minHeight="?attr/actionBarSize" />
<FrameLayout
android:layout_width="match_parent"
android:layout_below="@+id/tab_layout"
android:id="@+id/tabContainer"
android:layout_height="match_parent" />
</RelativeLayout>


When i add
android:elevation="10dp"
to Tablayout, shadow was added bottom and top .. I need just bottom. See image...

enter image description here

How can i do this ?
Thanks in advance.

Answer

Just add elevation to your Tablayout (0dp - 25dp). Read the material design guidelines for more information about elevation.

android:elevation="10dp"

EDIT:
add it to both your tablayout and toolbar

<android.support.v7.widget.Toolbar xmlns:local="http://schemas.android.com/apk/res-auto"
    android:id="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:minHeight="?attr/actionBarSize"
    android:background="@color/splashGreenTop"
    local:theme="@style/ThemeOverlay.AppCompat.Dark.ActionBar"
    local:popupTheme="@style/ThemeOverlay.AppCompat.Light"
    android:elevation="10dp" />
<android.support.design.widget.TabLayout
    android:id="@+id/tab_layout"
    android:layout_below="@+id/toolbar"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?attr/colorPrimary"
    android:elevation="0dp"
    android:minHeight="?attr/actionBarSize" 
    android:elevation="10dp"/>
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