Develop Reference

How to set the default icon color on the selected item in bottom navigation bar in android

I want the color of the icon to be the same as it but only for the selected one and some other color for the non-selected ones.
here is what I'm doing
XML:
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottom_navbar"
style="#style/Widget.MaterialComponents.BottomNavigationView"
android:layout_width="match_parent"
app:backgroundTint="#color/button_color_black1"
app:itemIconSize="35dp"
app:labelVisibilityMode="selected"
app:itemIconTint="#color/selector_for_navbar"
app:elevation="8dp"
app:itemRippleColor="#color/background_color"
app:menu="#menu/menu_items_for_navbar"
android:layout_height="70dp"/>
selector:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:color="x" />
<item android:color="#android:color/darker_gray" />
</selector>
I want x to be the same color that the icon has, and btw icon is multi-colored.
How can I do that?

android-how to partially tint icons of bottomNavigationView?

I'm using a viewPager with a bottomnavigationview in my android app. how can I partially tint the icons of bottomnavigationview as the user swipes the ViewPager? Chrome has such UI for example:

Use SegmentButton Library to do partially icon tint color change with smooth animation while tab changing
https://github.com/ceryle/SegmentedButton
Library allow customization as you required

add following attribute to BottomNavigationView
app:itemIconTint="#color/bnv_item_selector"
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/navigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAlignment="center"
app:itemBackground="#color/white"
app:itemIconTint="#color/bnv_item_selector"
app:itemTextAppearanceActive="#style/BottomNavigationView.Active"
app:itemTextAppearanceInactive="#style/BottomNavigationView"
app:itemTextColor="#color/bottom_menu_text_selector"
app:labelVisibilityMode="labeled"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="#menu/bottom_navigation" />
bnv_item_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true" android:color="#6CBF51" />
<item android:color="#E4E5ED" />
</selector>
Hope this will help!!

BottomNavigationView - How to disable selected icon highlight

I have a bottomnavigation view that sets an icon depending on the state if it's checked or not.
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/icon_tree"
android:title="Tree"
android:icon="#drawable/bottomnav_icon_home">
</item>
</menu>
bottomnav_icon_home:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/icon_home_black" android:state_checked="false"/>
<item android:drawable="#drawable/icon_home_green" android:state_checked="true"/>
</selector>
How ever bottomnavigation is automatically highlighting the icon when android:state_checked is true.
How do I completely disable bottomnavigation's icon selection highlight?
I've tried setting app:itemIconTint="#drawable/bottom_navigation_selector" to #null however that doesn't work
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:menu="#menu/bottom_navigation_menu"
android:background="#color/colorWhite"
app:itemTextColor="#drawable/bottom_navigation_selector"
app:itemIconSize="28dp"
app:itemIconTint="#drawable/bottom_navigation_selector"
app:labelVisibilityMode="labeled"/>
bottom_navigation_selector:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_checked="true"
android:color="#color/forestGreen" />
<item android:color="#color/colorBlack" />
</selector>

If i understood you right, android by default sets a tint on your bottom navigation icons on selection and you would like it to be removed right.
I know how to do that in your java class not xml though.
You'll need to set setItemIconTintList method of your BottomNavigationView to null. So in wherever you set the layout write code as :
BottomNavigationView btmNav = findViewById(R.id.bottom_navigation);
btmNav.setItemIconTintList(null);
Let us know if this works for you.

try to add this line in the dimens.xml
<dimen name="design_bottom_navigation_active_text_size" tools:override="true">#dimen/design_bottom_navigation_text_size</dimen>

You can create custom style.
There are two steps.
1- Create custom bottom_navigation_bar_icon_color.xml in drawable folder. This is the selector showed the icon highlighted or default. So you can highlight all icons or show them as default. Choose one of the following when creating your bottom_navigation_bar_icon_color.xml
Icons highlighted: <item android:alpha="1.0" android:color="?attr/colorOnPrimary" android:state_checked="true"/>
Icons default: <item android:alpha="0.6" android:color="?attr/colorOnPrimary"/>
bottom_navigation_bar_icon_color.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:alpha="0.6" android:color="?attr/colorOnPrimary"/>
</selector>
2- Add following custom style to themes.xml or styles.xml. bottom_navigation_bar_icon_color used in itemIconTint and itemTextColor
<style name="BottomNavigationThemeCustom">
<item name="enforceTextAppearance">true</item>
<item name="enforceMaterialTheme">true</item>
<item name="android:background">?attr/colorPrimary</item>
<item name="itemIconTint">#drawable/bottom_navigation_bar_icon_color</item>
<item name="itemRippleColor">#color/mtrl_navigation_bar_colored_ripple_color</item>
<item name="itemTextAppearanceInactive">?attr/textAppearanceCaption</item>
<item name="itemTextAppearanceActive">?attr/textAppearanceCaption</item>
<item name="itemTextColor">#drawable/bottom_navigation_bar_icon_color</item>
</style>
3- Use your new style for bottomNavigationBar
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNavigation"
style="#style/BottomNavigationThemeCustom"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:visibility="visible"
app:labelVisibilityMode="unlabeled"
app:menu="#menu/bottom_menu" />
4- If you want to hide the bottomNavigationBar on Scroll add following attribute to bottomNavigationBar
app:layout_behavior="com.google.android.material.behavior.HideBottomViewOnScrollBehavior"

You consider create your own implementation of bottomNavigation?
When I implement the Google BottomNavigationView, I got a lot of issues, so I create a new one like this:
<LinearLayout android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
android:layout_alignParentBottom="true">
<View android:layout_width="match_parent"
android:layout_height="1dp"
android:background="#color/grayBottomNavigationDelimiter"/>
<RadioGroup android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/colorNavigationBar"
android:orientation="horizontal">
<android.support.v7.widget.AppCompatRadioButton
android:id="#+id/homeButton"
android:drawableTop="#drawable/ic_home_black_24dp"
android:text="#string/navigation_home_text"
style="#style/RadioButtonStyle"/>
...
So, can see this is easier than imagine, did you?

To add it through XML: For the attribute IconItemTint and ItemTextColor, simply use the same color that you've used for icons by default. In that case, the highlight color and default color will be the same. Will give you the required ripple effect on selecting but highlight wont be visible.
For my black color icon, I've used this:
app:itemIconTint="#color/black"
app:itemTextColor="#000000"
My entire bottom nav looks like this:
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNavigationView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?android:attr/windowBackground"
app:itemIconTint="#color/black"
app:itemTextColor="#000000"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:menu="#menu/bottom_nav_more_options_menu" />

ButtomNavigationView doesn't show ripple effect in Items Background

UPDATE:
The other question uses a white background and since it uses white background there is no ripple on the BottomNavigationBar (because the ripple itself is white). But in my case the ButtomNavigationBar is blue, and it reflects the ripple. In fact all of the colors except the white(that the other question uses) reflect the incomplete ripple.
ORIGINAL:
I am using ButtomNavigationView, and the problem is that it doesn't show ripple effect in the background of it's Items.
Or it doesn't care about app:itemBackground it just uses android:background value without any ripple effect.
I've tried using a ripple instead of selector in drawable-21 and changing the app:itemBackground color values but it is not working.
ButtomNavigationView:
<android.support.design.widget.BottomNavigationView
android:id="#+id/nav_view"
android:layout_width="0dp"
android:layout_height="56dp"
android:theme="#style/BottomNavigationStyle"
app:labelVisibilityMode="labeled"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintLeft_toLeftOf="parent"
app:layout_constraintRight_toRightOf="parent"
app:menu="#menu/bottom_nav_menu" />
ButtomNavigationStyle:
<style name="BottomNavigationStyle">
<item name="itemBackground">#drawable/navigation_bar_item_bg</item>
<item name="itemIconTint">?attr/bottom_nav_colors</item>
<item name="itemTextColor">?attr/bottom_nav_colors</item>
<item name="android:background">?attr/colorPrimary</item>
<item name="android:fontFamily">#font/iransans_mobile</item>
</style>
bottom_nav_menu:
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#+id/navigation_mylibrary"
android:icon="#drawable/ic_library_books_black_24dp"
android:title="#string/title_mylibrary" />
<item
android:id="#+id/navigation_search"
android:icon="#drawable/ic_search_black_24dp"
android:title="#string/title_search" />
.
.
.
</menu>
navigation_bar_item_bg:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/black_color"
android:state_checked="true"/>
<item android:drawable="#drawable/black_color"/>
</selector>
ScreenShot:
https://firebasestorage.googleapis.com/v0/b/library-1696f.appspot.com/o/Screenshot%20from%202019-06-17%2005-39-23.png?alt=media&token=20efbe56-3234-47ab-b6cc-898124b77762

I've searched and I've found that it is a library bug that is not fixed yet.
But I've found a solution for this.
1) Since the android:background and android:itemBackground don't work correctly delete both of them from BottomNavigationView.
2) Create a new FrameLayout and put your BottomNavigationView inside FrameLayout.
3) change these properties of the FrameLayout:
android:layout_width="match_parent"
android:layout_height="wrap_content"
4)Finally Add your desired color for ButtomNavigationView into FrameLayout as android:background.
Example:
<FrameLayout
android:id="#+id/buttomnavigation_container"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#color/blue"><!--Background color for BNV-->
<android.support.design.widget.BottomNavigationView
android:id="#+id/nav_view"
android:layout_width="match_parent"
android:layout_height="56dp"
app:itemIconTint="#color/bottom_navigation_colors"
app:itemTextColor="#color/bottom_navigation_colors"
app:labelVisibilityMode="labeled"
app:menu="#menu/bottom_nav_menu"/>
</FrameLayout>
bottom_navigation_colors.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_checked="true"
android:color="#FFFFFF" />
<item
android:state_checked="false"
android:color="#C7FFFFFF" />
</selector>

Ripple effect in BottomNavigation view

In my BottomNavigationView, I want to add ripple effect and then change the background color of my selected navigation item. Here is a screenshot of what i've done so far
My Drawable File
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/colorAccent" android:state_checked="true"/>
<item android:drawable="#color/colorPrimaryDark" android:state_checked="false"/>
</selector>
My Layout File
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
app:itemBackground="#drawable/navigaton_item_bg"
app:itemIconTint="#android:color/white"
app:itemTextColor="#android:color/white"
app:menu="#menu/navigation" />