Develop Reference

How to make TabItem's text ellipsize and singleline?

I need to make my TabLayout use all available space, so I use app:tabMode="fixed", app:tabGravity="fill". I want titles of my TabItems be singleline and if the titles cannot be shown in full, a part is replaced by ... (android:ellipsize = "end" behavior). I want something like this .
I try to gain it usings styles but failed.
Part of my fragment layout
`
<com.google.android.material.tabs.TabLayout
android:id="#+id/credit_details_tab_layout"
style="#style/CreditDetailsTabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="#dimen/margin_horizontal"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/credit_details_text_deposit_up_to"
app:tabMode="fixed"
app:tabGravity="fill"
android:maxWidth="0dp"
app:tabPaddingStart="0dp"
app:tabPaddingEnd="0dp"
android:layout_marginHorizontal="#dimen/spacing_M">
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/information"/>
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/history"/>
<com.google.android.material.tabs.TabItem
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/management"/>
</com.google.android.material.tabs.TabLayout>
`
from styles
<style name="CreditDetailsTabLayout" parent="Widget.Design.TabLayout">
<item name="background">#color/black_for_tabs</item>
<item name="tabRippleColor">#android:color/transparent</item>
<item name="android:textAlignment">center</item>
<item name="tabBackground">#color/white</item>
<item name="tabTextAppearance">#style/CreditDetailsTabLayoutTextAppearance</item>
</style>
<style name="CreditDetailsTabLayoutTextAppearance" parent="TextAppearance.Design.Tab">
<item name="android:textSize">16sp</item>
<item name="textAllCaps">false</item>
<item name="singleLine">true</item>
<item name="textColor">#color/black_for_tabs</item>
<item name="android:ellipsize">end</item>
<item name="maxLines">1</item>
and finally screen
Can I achieve this without using CustomView ?

change unselected tab color of tablayout dynamically

i am using databinding to change the color of the selected tab of tab layout
#BindingAdapter(value = ["tabIndicatorColor", "context"])
fun setSelectedTabIndicatorColor(tabLayout: TabLayout, color: Int, context: Context) {
tabLayout.setSelectedTabIndicatorColor(getColor(context, color))
}
and setting it from the tabLayout view
<variable
name="professionalTypeColor"
type="Integer" />
<com.google.android.material.tabs.TabLayout
android:id="#+id/tl_images"
android:layout_width="0dp"
android:layout_height="5dp"
tabIndicatorColor="#{professionalTypeColor}"
context="#{context}"
app:tabPaddingEnd="8dp"
app:tabPaddingStart="8dp" />
what i did until here is exactly as i wanted it to be, but for the unselected tabs i couldn't make a databinding Adapter for it so i change its color dynamically ,
i tried using
app:tabBackground="#color/grey"
or
app:tabBackground="#drawable/selector_tab_indicator"
but this need to be predefined color or a drawable with two colors (selected,unselected) which is not my desired result,
my question is how to make a databinding adapter to set the tabBackground dynamically , ( i couldn't find a setter in tablayout with attribute of tabbackground )

Create a style in style.xml and call in xml layout like below
<style name="MyCustomTabLayout" parent="Widget.Design.TabLayout">
<item name="tabIndicatorColor">#color/colorAccent</item>
<item name="tabIndicatorHeight">2dp</item>
<item name="tabTextAppearance">#style/MyCustomTabTextAppearance</item>
<item name="tabSelectedTextColor">#color/colorAccent</item>
</style>
<style name="MyCustomTabTextAppearance" parent="TextAppearance.Design.Tab">
<item name="android:textSize">#dimen/title_text_size</item>
<item name="android:textColor">#color/secondaryText</item>
<item name="textAllCaps">false</item>
<item name="android:textStyle">normal</item>
</style>
Call here
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:tabTextColor="#android:color/white"
app:tabMode="scrollable"
**style="#style/MyCustomTabLayout"**
app:tabGravity="fill" />

Custom selected tab colour in new android.support.design.widget.TabLayout?

I would like to know that is it possible to change selected tab colour in new design tablayout? I found the solution for selected tab text color but I would like to know to change tab colour itself.
<android.support.design.widget.TabLayout
android:id="#+id/tabs"
style="#style/TabLayout.Theme"
android:layout_alignParentTop="true"
android:layout_width="match_parent"
android:layout_height="wrap_content" />
<android.support.v4.view.ViewPager
android:id="#+id/viewpager"
android:layout_width="wrap_content"
android:layout_height="match_parent"
android:layout_below="#+id/tabs"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
</RelativeLayout>
<style name="TabLayout.Theme" parent="Widget.Design.TabLayout">
<item name="tabIndicatorColor">#color/black</item>
<item name="tabIndicatorHeight">4dp</item>
<item name="tabTextAppearance">#style/TextAppearance.Jacksonville.Tab</item>
<item name="tabSelectedTextColor">#color/text_dim</item>
<item name="tabBackground">#color/color_heading</item>
</style>
i need to change selected tab colour like this.

you just need to set app:tabBackground attribute
app:tabBackground="#drawable/tab_selector_color"
and create a drawable file as tab_selector_color.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/tab_selected" android:state_selected="true"/>
<item android:drawable="#color/tab_unselected"/>
</selector>
so The complete xml code will be look like
<android.support.design.widget.TabLayout
android:id="#+id/sliding_tabs"
android:layout_width="match_parent"
android:layout_height="android:attr/listPreferredItemHeight"
android:minWidth="0dp"
app:tabMaxWidth="0dp"
app:tabGravity="fill"
app:tabMode="fixed"
app:tabTextColor="#color/white"
app:tabIndicatorHeight="0dp"
app:tabSelectedTextColor="#color/white"
app:tabIndicatorColor="#color/mainBlue"
app:tabBackground="#drawable/tab_color_selector"/>

hi you can make the hight of the indicator to equal the height of the tablayout so the indicator will cover the all size of the selected item in tab layout
<style name="MyCustomTabLayout" parent="Widget.Design.TabLayout">
<!-- the color you want in selected tab -->
<item name="tabIndicatorColor">#50000000</item>
<item name="tabTextAppearance">#style/MyCustomTabTextAppearance</item>
<!-- set the indicator hieght equal to tablayout height -->
<item name="tabIndicatorHeight">60dp</item>
<item name="tabSelectedTextColor">#222222</item>

TabLayout highlite and Ripple effect

I have two question with TabLayout
1)Can i remove TabLayout highlight or change highlight color of tab layout?
2)Can i add ripple effect for tab. Each tab contain TextView i try to add custom background something like this
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="?android:colorControlHighlight">
<item android:drawable="#drawable/btn_white_bg" />
</ripple>
but it doesn't work.

To remove the highlight, add the below line to your XML:
app:tabRippleColor="#android:color/transparent"

Another solution that works for me
<android.support.design.widget.TabLayout
android:id="#+id/tab_layout"
android:minHeight="?attr/actionBarSize"
android:layout_width="match_parent"
app:tabMode="fixed"
app:tabGravity="fill"
android:clipToPadding="false"
android:elevation="0dp"
style="#style/MyCustomTabLayout"
android:background="#color/colorPrimary"
app:tabBackground="?attr/selectableItemBackground"
app:tabIndicatorColor="#color/app_yellow"
app:tabIndicatorHeight="4dip"
android:layout_height="wrap_content"/>
I just added following lines
android:background="#color/colorPrimary"
app:tabBackground="?attr/selectableItemBackground"

You can customize the TabLayout like this:
Make a xml file inside values MyCustomTabLayout.xml and then put these
<resources>
<style name="MyCustomTabLayout" parent="Widget.Design.TabLayout">
<item name="tabMaxWidth">#dimen/tab_max_width</item>
<item name="tabIndicatorColor">#color/black</item>
<!-- <item name="tabIndicatorColor">?attr/colorAccent</item> -->
<item name="tabIndicatorHeight">5dp</item>
<item name="tabPaddingStart">12dp</item>
<item name="tabPaddingEnd">12dp</item>
<item name="tabBackground">?attr/selectableItemBackground</item>
<item name="tabTextAppearance">#style/MyCustomTabTextAppearance</item>
<item name="tabSelectedTextColor">?android:textColorPrimary</item>
</style>
<style name="MyCustomTabTextAppearance" parent="TextAppearance.Design.Tab">
<item name="android:textSize">16sp</item>
<item name="android:textColor">?android:textColorSecondary</item>
<item name="textAllCaps">true</item>
</style>
and inside ur layout add this:
<android.support.design.widget.TabLayout
android:id="#+id/mainSlidingTab"
style="#style/MyCustomTabLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/tool_bar"
android:background="#color/ColorPrimary" />
<!-- app:tabMode="scrollable" when many tabs -->

Alternatively, you can make the ripple transparent programmatically:
val tabs = findViewById<TabLayout>(R.id.your_tablayout)
for (n in 0 until tabs.tabCount) {
val tab = (tabs.getChildAt(0) as ViewGroup).getChildAt(n)
tab?.let {
val ripple = it.background as? RippleDrawable
ripple?.setColor(ColorStateList.valueOf(Color.parseColor("#00000000")))
}
}
This approach can also be used to set own ripple color for each tab.

Change Toolbar background color programmatically does not change Toolbar Title Background color

I´m trying to change the toolbar Background color programmatically by doing this:
getSupportActionBar().setBackgroundDrawable(newColorDrawable(getResources().getColor(R.color.test_color_blue)));
And this is the result:
before:
After:
Some how the toolbar title still has the same background color as before.
here is my toolbar xml:
<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:gravity="center_vertical"
app:popupTheme="#style/ThemeOverlay.AppCompat.Light"
app:theme="#style/Theme.Toolbar">
And here is the Theme:
<style name="Theme.Toolbar" parent="ThemeOverlay.AppCompat.Dark.ActionBar">
<item name="android:maxHeight">#dimen/abc_action_bar_default_height_material</item>
<item name="android:background">#color/primary</item>
<item name="colorPrimary">#color/primary</item>
<item name="colorPrimaryDark">#color/primary_dark</item>
<item name="colorAccent">#android:color/white</item>
<item name="titleTextAppearance">#style/Theme.Toolbar.Title</item>
</style>

Change your code as follows:
toolbar.xml
<android.support.v7.widget.Toolbar xmlns:android="http://schemas.android.com/apk/res/android"
style="#style/MyToolbarStyle"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical">
Theme / Style
<style name="MyToolbarStyle">
<item name="android:maxHeight">#dimen/abc_action_bar_default_height_material</item>
<item name="android:background">#color/primary</item>
<item name="popupTheme">#style/ThemeOverlay.AppCompat.Light</item>
<item name="titleTextAppearance">#style/Theme.Toolbar.Title</item>
<!-- No need for colorPrimary, colorPrimaryDark, colorAccent here
this should go to the AppTheme -->
</style>
Result
Before setting the new background color:
and after:

Late, but I hope it would be helpful comment
I had this item in my Activity style
<item name="android:background">someColor</item>
so when I changed toolbar color, title and menu items didn't change background.
I just removed this item and now it works perfect.
I did not have time to understand the details, but I think it might be useful to someone else.

use this to access the textview
public void changeToggleTitle() {
if (mToolbar != null) {
for(int i= 0; i < mToolbar.getChildCount(); i++){
View v = mToolbar.getChildAt(i);
if(v != null && v instanceof TextView){
TextView t = (TextView) v;
// Do the magic
}
}
}
}

In my style I changed
<item name="android:background">#color/background</item>
to
<item name="android:windowBackground">#color/background</item>
and that seems to have fixed it for me.

mToolbar.setBackgroundResource(mGameEnum.getPrimeColorRes());