Develop Reference

SearchView is collapsable even after "app:showAsAction="always"

I've got a simple fragment toolbar:
<com.google.android.material.appbar.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/AppTheme.AppBarOverlay">
<androidx.appcompat.widget.Toolbar
android:id="#+id/toolbarDriver"
app:menu="#menu/menu_toolbar_driver_list"
app:navigationIcon="#drawable/baseline_menu_24"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_scrollFlags="scroll|enterAlways"
app:collapseIcon="#drawable/baseline_menu_24"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</com.google.android.material.appbar.AppBarLayout>
Menu:
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_searchDrivers"
android:icon="#android:drawable/ic_menu_search"
android:title="Search Drivers..."
app:actionViewClass="androidx.appcompat.widget.SearchView"
app:showAsAction="always" />
</menu>
Code:
mtSearchDrivers.setIconified(false);
Which looks like this:
As you can see, on the right side there is the "x" button which should only be used to remove the searchviewtext but if no text is entered like in this case and the user clicks on "x", the searchview collapses even when app:showAsAction="always" is set.. What can the issue be?

I solved the issue:
I just put the searchview as a child of my toolbar, rather than an own menuitem.

Android Studio How do I get my Bottom navigation view to show my menu

Im trying to get my material Bottom Navigation bar to show up but whenever i add " app:menu="#menu/nav_menu" " to my acitivty_main.xml, the Navigation bar disappears. How do I fix this?
activity_main.xml:
<?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"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/fl_wrapper"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_above="#+id/bottom_navigation"/>
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
app:menu="#menu/nav_menu"
/>
</RelativeLayout>
nav_menu.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="#+id/navigation_profile"
android:icon="#drawable/ic_profile"
android:title="Favorites"
android:visible="true"/>
<item
android:id="#+id/navigation_steps"
android:icon="#drawable/ic_steps"
android:title="Steps"
android:visible="true"
/>
<item
android:id="#+id/navigation_home"
android:icon="#drawable/ic_action_home"
android:title="Home"
android:visible="true"/>
</menu>
I'm not sure why it's not working. When i take away the app:menu part it shows a black navigation bar but as soon as I add the menu, the navigation bar disappears.

I think you need to set background color to bottomnavigation menu.
try adding
android:background="?android:attr/windowBackgroud" in your bottomnavigation menu.

Change the color of overflow menu icons in a material toolbar

I want to change the overflow menu icons color in my material toolbar depending on the android:theme value.
In this example my search icon is affected by the toolbar's theme via some magic related to the app:actionViewClass attribute implementation, but my info icon is not.
My toolbar:
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.appbar.AppBarLayout
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:fitsSystemWindows="true"
app:liftOnScroll="true">
<com.google.android.material.appbar.MaterialToolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:theme="#style/ThemeOverlay.MaterialComponents.Dark.ActionBar"
style="#style/Widget.MaterialComponents.Toolbar.Primary"
app:title="#string/app_name"
app:menu="#menu/menu_main"
app:layout_scrollFlags="scroll|enterAlways|snap"/>
</com.google.android.material.appbar.AppBarLayout>
My menu:
<?xml version="1.0" encoding="utf-8"?>
<menu
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/action_search"
android:icon="#drawable/ic_search_24dp"
app:showAsAction="always"
app:actionViewClass="androidx.appcompat.widget.SearchView"
android:title="TODO" />
<item android:id="#+id/action_info"
android:icon="#drawable/ic_info_24dp"
app:showAsAction="always"
android:title="TODO" />
</menu>
Does a simple solution exists?

You can use:
<com.google.android.material.appbar.MaterialToolbar
style="#style/Widget.MaterialComponents.Toolbar.Primary"
android:theme="#style/MyThemeOverlay_Toolbar"
...>
<style name="MyThemeOverlay_Toolbar" parent="ThemeOverlay.MaterialComponents.Toolbar.Primary">
<!-- color used by navigation icon and overflow icon -->
<item name="colorOnPrimary">#color/myColor</item>
</style>

You can head over to the Material Components documentation which has a lot of information about styling each part of views from the library.
In this case it seems like the action icon tint is set by the colorControlNormal attribute.
Documentation - Top app bars

Maybe this answer comes too late, but just in case other people need it, I will post my answer here.
The problem you are facing will be solved if you set the attribute theme to the AppBarLayout instead of the MaterialToolbar.
So, in your code, your toolbar should look like this:
<?xml version="1.0" encoding="utf-8"?>
<com.google.android.material.appbar.AppBarLayout
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:fitsSystemWindows="true"
android:theme="#style/ThemeOverlay.MaterialComponents.Dark.ActionBar"
app:liftOnScroll="true">
<com.google.android.material.appbar.MaterialToolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
style="#style/Widget.MaterialComponents.Toolbar.Primary"
app:title="#string/app_name"
app:menu="#menu/menu_main"
app:layout_scrollFlags="scroll|enterAlways|snap"/>
</com.google.android.material.appbar.AppBarLayout>
Hope this helps to anyone!

Bottom Navigation Bar not showing icons or text

I'm having a little bit of trouble trying to implement a Bottom Navigation Bar with icons and text in my Android application.
The bar currently functions as expected and takes you to the desired fragment but isn't showing icons or text for some reason.
I've done a few searches but haven't been able to find a solution or a reason as to why it is behaving this way.Any help would be appreciated. Thanks.
activity_main.xml
<?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"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".MainActivity">
<FrameLayout
android:id="#+id/frame_container"
android:layout_width="match_parent"
android:layout_height="match_parent"
app:layout_behavior="#string/appbar_scrolling_view_behavior" />
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:background="?android:attr/windowBackground"
app:itemBackground="#color/turquoise"
android:foreground="#color/colorPrimary"
app:itemIconTint="#android:color/white"
app:itemTextColor="#android:color/white"
app:menu="#menu/navigation" />
</android.support.design.widget.CoordinatorLayout>
navigation.xml
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/nav_0"
android:icon="#drawable/ic_launcher_foreground"
android:title="home"
app:showAsAction="ifRoom|withText"/>
<item
android:id="#+id/nav_1"
android:icon="#drawable/ic_launcher_foreground"
android:title="email"
app:showAsAction="ifRoom|withText"/>
<item
android:id="#+id/nav_2"
android:icon="#drawable/ic_home"
android:title="profile"
app:showAsAction="ifRoom|withText"/>
<item
android:id="#+id/nav_3"
android:icon="#drawable/ic_home"
android:title="map"
app:showAsAction="ifRoom|withText"/>
</menu>
in MainActivity.java
toolbar = getSupportActionBar();
BottomNavigationView navigation = (BottomNavigationView) findViewById(R.id.navigation);
navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);

Remove android:foreground="#color/colorPrimary" attribute inside your BottomNavigationView

xamarin inflate menu action bar icons not showing, only text appears

i use this code to create menu for action bar in xamarin. but text is being shown, not the icon. i want icons only to be appear. Here is what i try for creating the menu.
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res/android-auto">
<item android:id="#+id/action_reply"
android:icon="#drawable/ic_rotate"
android:title="Reply"
android:showAsAction="always" />
<item android:id="#+id/action_undo"
android:icon="#drawable/ic_dashboard"
android:title="Undo"
android:showAsAction="never" />
</menu>
Here is the action bar code
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FEFEFE">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/actionBarSize"
android:background="?attr/colorPrimary"
local:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
local:popupTheme="#style/ThemeOverlay.AppCompat.Light"
android:layout_alignParentTop="true" />
can anyone suggest some improvements?

You are using the Android Support V7 Toolbar, you need to correct your menu to use xmlns:local="http://schemas.android.com/apk/res/android-auto" instead of xmlns:app="http://schemas.android.com/apk/res/android-auto" then change android:showAsAction="always" to local:showAsAction="always"