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Create an oval shape around Bottom Navigation Bar Icon - Android

I am trying to create an oval shape around my bottom navigation icon when selected as seen in the screenshot
bottom_nav_layout.xml
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNav_view"
android:layout_width="match_parent"
android:layout_height="56dp"
android:elevation="0dp"
android:paddingLeft="10dp"
android:paddingRight="10dp"
android:theme="#style/Widget.BottomNavigationView"
app:itemIconSize="20dp"
app:itemIconTint="#color/bottom_nav_color"
app:itemTextColor="#color/bottom_nav_color"
app:labelVisibilityMode="labeled"
app:layout_constraintBottom_toBottomOf="parent"
app:menu="#menu/bottom_nav_menu" />
bottom_nav_color.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="#3375BB" />
<item android:state_checked="false" android:color="#68788D"/>
</selector>
bottom_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_home"
android:icon="#drawable/ic_trustwallet"
android:title="Wallet" />
<item
android:id="#+id/navigation_discover"
android:icon="#drawable/ic_discover"
android:title="Discover" />
<item
android:id="#+id/navigation_browser"
android:icon="#drawable/ic_browser"
android:title="Browser" />
<item
android:id="#+id/navigation_settings"
android:icon="#drawable/ic_paper_settings"
android:title="Settings" />
</menu>

Use a M3 theme in your app:
<style name="AppTheme" parent="Theme.Material3.DayNight">
Then in your layout:
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottomNav_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:theme="#style/ThemeOverlay.App.BottomNavigationView"
with:
<style name="ThemeOverlay.App.BottomNavigationView" parent="">
<item name="colorSurface">#d1e4ff</item>
<item name="colorSecondaryContainer">#0061a3</item>
</style>

Fill the icons in bottomNavigation

I use bottomNavigation.
I wanna fill the icon with the color "not the outside of the icon" when selected.
How can I do that?
<com.google.android.material.bottomnavigation.BottomNavigationView
android:id="#+id/bottom_navigation"
android:layout_width="match_parent"
android:layout_height="56dp"
android:paddingTop="2dp"
android:background="#FFFFFF"
android:theme="#style/BottomNavigationTextStyle"
app:labelVisibilityMode="labeled"
app:itemIconSize="24dp"
android:layout_alignParentBottom="true"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:menu="#menu/buttom_navigation_menu">
</com.google.android.material.bottomnavigation.BottomNavigationView>

Use the itemIconTint attribute:
<com.google.android.material.bottomnavigation.BottomNavigationView
app:itemIconTint="#color/my_selector"
..>
and define a selector like:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:alpha="1.0" android:color="..." android:state_checked="true"/>
<item android:alpha="0.6" android:color="..."/>
</selector>

Use custom made images as per your requirement. You would need to add 2 images one for the active state and for deactive state.
Create a selector home_icon_selector.xml for your icon
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/your_active_icon_here" android:state_selected="true" />
<item android:drawable="#drawable/your_active_icon_here" android:state_pressed="true" />
<item android:drawable="#drawable/your_active_icon_here" android:state_checked="true" />
<item android:drawable="#drawable/your_deactive_icon_here" />
</selector>
Update your menu buttom_navigation_menu to use the selector above
<menu xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto">
<item
android:id="#+id/menu_home"
android:enabled="true"
android:icon="#drawable/home_icon_selector"
android:title="#string/tab_title_home"/>
</menu>

Custom Spinner dropdown arrow

I have the following layout XML:
<android.support.v7.widget.AppCompatSpinner
android:id="#+id/content_spinner"
style="#style/Widget.AppCompat.Spinner.Underlined"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#drawable/border"
android:entries="#array/books"
android:spinnerMode="dropdown"
android:theme="#style/large_spinner"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
And #style/large_spinner looks like this:
<style name="large_spinner" parent="Widget.AppCompat.Light.DropDownItem.Spinner">
<item name="android:paddingStart">0dp</item>
<item name="android:paddingEnd">0dp</item>
<item name="android:textColor">#color/nearlyBlack</item>
<item name="android:textSize">30sp</item>
<item name="android:drawableRight">#drawable/ic_menu_camera</item>
</style>
Which gives me the camera icon to the right of the spinner, which is want. However when I drop down the spinner the icon is on every single item, which I dont want. I just want the icon to the right on the spinner, not in every single item.
How can i achieve this?

Try this
<android.support.v7.widget.AppCompatSpinner
android:id="#+id/content_spinner"
style="#style/Widget.AppCompat.Spinner.Underlined"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:layout_marginEnd="8dp"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:layout_marginStart="8dp"
android:layout_marginTop="8dp"
android:background="#drawable/test"
android:entries="#array/books"
android:spinnerMode="dropdown"
android:theme="#style/large_spinner"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
android:background="#drawable/test"
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<layer-list>
<item>
<shape>
<solid android:color="#android:color/white" />
<corners android:radius="4dp" />
<padding android:left="8dp" />
</shape>
</item>
<item android:gravity="left|bottom" android:drawable="#drawable/ic_menu_camera" />
</layer-list>
</item>
</selector>
style name="large_spinner"
<style name="large_spinner" parent="Widget.AppCompat.Light.DropDownItem.Spinner">
<item name="android:paddingStart">0dp</item>
<item name="android:paddingEnd">0dp</item>
<item name="android:textColor">#color/nearlyBlack</item>
<item name="android:textSize">30sp</item>
</style>

Status bar overlapping with activity

Problem
Status bar overlapping with Toolbar. I have tried to setting various attributes but it isn't working out. So now suggest me what to do with this issue and what is causing this issue.
One more thing to note is that I've used transparent status bar attribute in one other activity.
activity_symptom.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"
android:fitsSystemWindows="true"
tools:context="com.example.nishantsikri.microdoctor.SymptomActivity">
<android.support.design.widget.AppBarLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fitsSystemWindows="true"
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="?attr/colorPrimary"
app:popupTheme="#style/AppTheme.PopupOverlay" />
</android.support.design.widget.AppBarLayout>
<include layout="#layout/content_symptom" />
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/fab_margin"
app:srcCompat="#android:drawable/ic_dialog_email" />
</android.support.design.widget.CoordinatorLayout>
content_symptom.xml
<?xml version="1.0" encoding="utf-8"?>
<android.support.constraint.ConstraintLayout 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:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.example.nishantsikri.microdoctor.SymptomActivity"
tools:showIn="#layout/activity_symptom">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<TextView
android:id="#+id/symptom1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Symptom 1" />
<Spinner
android:id="#+id/spinner1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:spinnerMode="dialog"
android:layout_gravity="start|center_vertical"
android:ellipsize="marquee"
android:gravity="center_vertical"
android:minHeight="48dp"
android:paddingBottom="12dp"
android:paddingLeft="24dp"
android:paddingRight="24dp"
android:paddingStart="24dp"
android:paddingTop="12dp"/>
<TextView
android:id="#+id/symptom2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Symptom 2" />
<Spinner
android:id="#+id/spinner2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start|center_vertical"
android:spinnerMode="dialog"
android:ellipsize="marquee"
android:gravity="center_vertical"
android:minHeight="48dp"
android:paddingBottom="12dp"
android:paddingLeft="24dp"
android:paddingRight="24dp"
android:paddingStart="24dp"
android:paddingTop="12dp"/>
<TextView
android:id="#+id/symptom3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Symptom 3" />
<Spinner
android:id="#+id/spinner3"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="start|center_vertical"
android:spinnerMode="dialog"
android:ellipsize="marquee"
android:gravity="center_vertical"
android:minHeight="48dp"
android:paddingBottom="12dp"
android:paddingLeft="24dp"
android:paddingRight="24dp"
android:paddingStart="24dp"
android:paddingTop="12dp"/>
<Button
android:id="#+id/button8"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="Button"
tools:layout_editor_absoluteX="70dp"
tools:layout_editor_absoluteY="16dp" />
<TextView
android:id="#+id/textView2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:text="TextView"
tools:layout_editor_absoluteX="127dp"
tools:layout_editor_absoluteY="170dp" />
</LinearLayout>
</android.support.constraint.ConstraintLayout>
styles.xml
<resources xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="android:windowTranslucentStatus" tools:targetApi="19">true</item>
<item name="android:windowDrawsSystemBarBackgrounds" tools:targetApi="21">true</item>
</style>
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
<style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark.ActionBar" />
<style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />
<style name="AppTheme.Button" parent="Widget.AppCompat.Button.Colored">
<item name="colorControlHighlight">#color/indigo</item>
<item name="colorButtonNormal">#color/pink</item>
<item name="android:textColor">#color/White</item>
<item name="android:padding">20dp</item>
</style>
//Styles for Trending Topics Content Header Text
<style name="TextAppearance.Design.CollapsingToolbar.Expanded.Shadow">
<item name="android:shadowDy">0</item>
<item name="android:shadowDx">0</item>
<item name="android:shadowRadius">8</item>
<item name="android:shadowColor">#android:color/black</item>
</style>
<style name="AppThemeNavigation" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="android:textColorPrimary">#android:color/white</item>
<item name="android:windowTranslucentStatus" tools:targetApi="19">true</item>
<item name="android:windowContentOverlay">#null</item>
<item name="windowActionBar">false</item>
<item name="android:windowDrawsSystemBarBackgrounds" tools:targetApi="21">true</item>
</style>
</resources>

Delete blue line in View android API 16

I need delete a blue line that appears in my application when I compile with API 20 or higher but doesn't appear when I compile in API < 20.
This image shows the blue line I need delete.
that is mi code view XML
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_marginBottom="10dp"
android:layout_marginTop="0dp"
android:background="#color/transparent"
android:layout_height="280dp" >
<net.simonvt.numberpicker.NumberPicker
android:textAppearance="?android:attr/textAppearanceMedium"
android:textColor="?android:attr/textColorPrimary"
android:id="#+id/numberPicker1_popup"
android:singleLine="true"
android:background="#null"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:configChanges="keyboard|keyboardHidden"
android:layout_centerVertical="true"
android:layout_alignLeft="#+id/title_picker"
android:layout_alignStart="#+id/title_picker"
android:layout_alignRight="#+id/title_picker"
android:layout_alignEnd="#+id/title_picker" />
<Button
android:layout_width="50dp"
android:layout_height="50dp"
android:text=""
android:id="#+id/button_cancel"
android:layout_below="#+id/numberPicker1"
android:layout_alignParentLeft="true"
android:layout_marginLeft="15dp"
android:layout_alignParentStart="false"
android:background="#drawable/big_cancel"/>
<Button
android:layout_width="50dp"
android:layout_height="50dp"
android:id="#+id/button_ok"
android:layout_alignTop="#+id/button_cancel"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_marginRight="15dp"
android:background="#drawable/big_ok_line_green"/>
<TextView
android:layout_width="wrap_content"
android:layout_height="40dp"
android:textAppearance="?android:attr/textAppearanceMedium"
android:text="Title"
android:id="#+id/title_picker"
android:layout_marginTop="0dp"
android:layout_alignLeft="#+id/button_cancel"
android:layout_alignStart="#+id/button_cancel"
android:layout_alignRight="#+id/button_ok"
android:layout_alignEnd="#+id/button_ok"
android:layout_alignParentTop="true"
android:layout_alignParentLeft="false"
android:textAlignment="center"
android:textColor="#000000"/>
</RelativeLayout>
and this is my style
<style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
<!-- Customize your theme here. -->
<item name="colorPrimary">#color/colorPrimary</item>
<item name="colorPrimaryDark">#color/colorPrimaryDark</item>
<item name="colorAccent">#color/colorAccent</item>
<item name="numberPickerStyle">#style/NPWidget.Holo.Light.NumberPicker</item>
<item name="android:typeface">monospace</item>
</style>
<style name="AppTheme.NoActionBar">
<item name="windowActionBar">false</item>
<item name="windowNoTitle">true</item>
</style>
<style name="AppTheme.NowindowTitle">
<item name="windowActionBar">false</item>
<item name="android:windowNoTitle">true</item>
</style>
thanks for helpme

You need to customize your view appearance by setting background , etc if you want to remove that blue line . Because that is the default appearance for that platform (which I guess is started since Honeycomb).