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How to make the color of a TextView like this image?

I want to set the color of a textview like this image, It has a vertical red color line and entire textview is like pink or reddish color.

You can use a linear layout with orientation horizontal and put a view inside it.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".FirstFragment">
<LinearLayout
android:background="#color/teal_200"
android:layout_width="match_parent"
android:layout_height="wrap_content"
app:layout_constraintBottom_toTopOf="#id/button_first"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent">
<View
android:layout_width="5dp"
android:background="#color/cardview_dark_background"
android:layout_height="match_parent"/>
<TextView
android:id="#+id/textview_first"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingStart="5dp"
android:text="#string/hello_first_fragment"
android:background="#drawable/side_line"
/>
</LinearLayout>
<Button
android:id="#+id/button_first"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/next"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#id/textview_first" /></androidx.constraintlayout.widget.ConstraintLayout>
Just change the colors and you are good to go.
The output looks like this...

You can use layer list. No need more views
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:shape="rectangle">
<solid android:color="#color/teal_700"/>
</shape>
</item>
<item android:start="5dp">
<shape
android:shape="rectangle">
<solid android:color="#color/teal_200"/>
</shape>
</item>
</layer-list>
In your TextView
android:background="#drawable/your_layer_list"

How to create custom shadow for view?

I wanna to create custom shadow for view which i customize as like as my plan.
Custom Shadow looks like Card View elevation.
I need this type of shadow

Hm. This one is extremely simple and producing very similar (imo) result to what you requested. Obviously params like elevation, corner radius etc can/should be tweaked.
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.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:layout_width="match_parent"
android:padding="16dp"
android:layout_height="match_parent"
tools:context=".FirstFragment">
<androidx.cardview.widget.CardView
android:id="#+id/textview_first"
android:layout_width="300dp"
android:layout_height="100dp"
app:cardCornerRadius="20dp"
app:cardElevation="8dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>

Check this one. This works for me.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Bottom 2dp Shadow -->
<item>
<shape android:shape="rectangle">
<solid android:color="#d8d8d8" />
<corners android:radius="7dp" />
</shape>
</item>
<!-- White Top color -->
<item android:bottom="3px">
<shape android:shape="rectangle">
<solid android:color="#FFFFFF" />
<corners android:radius="7dp" />
</shape>
</item>

The first icon on my navigation bar is blue and larger than the others, how do I change that?

Completely new user of Android Studio is here, and I'm trying to make a movie review application as a school project.
So the problem here is that there will be several icons on my homepage's navigation bar, but the first icon for some reason is always blue and larger than the other icons, and I have no idea how to fix that, as you can see in the picture. Picture
Here's the XML of my homepage.xml and the nav_items.xml
HOMEPAGE
<?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"
android:background="#FFFFFF"
tools:context=".Homepage">
<android.support.design.widget.BottomNavigationView
android:layout_width="match_parent"
android:layout_height="68dp"
android:layout_alignParentBottom="true"
android:layout_alignParentStart="true"
app:menu="#menu/nav_items"></android.support.design.widget.BottomNavigationView>
</RelativeLayout>
Nav_items.XML
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:icon="#drawable/ic_input_black_24dp"
android:title="#string/nav_list" />
<item
android:icon="#drawable/outline_home_black_24"
android:title="#string/nav_home" />
</menu>

If it is blue by default then it means it is selected.

Onclick highlight my list row doesn't working

Hello friends i have tried many different ways to highlight my listview but nothing works for me. i want to highlight my customlist view when i click on that and than open a new activity.
here is my xml file list_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Selector style for listrow -->
<item
android:state_selected="false"
android:state_pressed="false"
android:drawable="#drawable/gradient_bg" />
<item android:state_pressed="true"
android:drawable="#drawable/gradient_bg_hover" />
<item android:state_selected="true"
android:state_pressed="false"
android:drawable="#drawable/gradient_bg_hover" />
</selector>
here is my gradient_bg_hover.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<!-- Gradient BgColor for listrow Selected -->
<gradient
android:startColor="#18d7e5"
android:centerColor="#16cedb"
android:endColor="#09adb9"
android:angle="270" />
</shape>
And gradient_bg.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<!-- Gradient Bg for listrow -->
<gradient
android:startColor="#f1f1f2"
android:centerColor="#e7e7e8"
android:endColor="#cfcfcf"
android:angle="270" />
</shape>
and my _activity_setup.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayout1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="#+id/listview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:divider="#b5b5b5"
android:dividerHeight="1dp"
android:listSelector="#drawable/list_selector" />
</LinearLayout>
help me

Just remove the list-selector from your listview and instead, set the background for your item view:
Your listview:
<ListView
android:id="#+id/listview"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:divider="#b5b5b5"
android:dividerHeight="1dp"
android:listSelector="#null" />
Your item view (for example):
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/LinearLayout1"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/list_selector" >
</LinearLayout>
Hope this helps.

gradient of Listview items doesnot change ontapping

I have a listview settup using an custom array adapter the list appears fine I have used an gradient ans the background of each item which also appears but the code also states to change gradient on tapping which doesnot occur below are my xml's
main.xml
<ListView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:dividerHeight="0.1dp"
android:listSelector="#drawable/list_selector"
/>
row_list.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:id="#+id/txtListText"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_horizontal"
android:padding="20dp"
android:textSize="35sp"
android:textColor="#545454"
android:background="#drawable/ogbg"
/>
</LinearLayout>
list_selector.xml
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Selector style for listrow -->
<item
android:state_selected="false"
android:state_pressed="false"
android:drawable="#drawable/ogbg" />
<item android:state_pressed="true"
android:drawable="#drawable/ogpress" />
<item android:state_selected="true"
android:state_pressed="false"
android:drawable="#drawable/ogpress" />
</selector>
ogbg.xml// normal background gradient
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#FFFAFAFA"
android:centerColor="#FFFFFFFF"
android:endColor="#FFFFFFFF"
android:angle="90"/>
</shape>
ogpress.xml//gradient to change on tapping
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#FF05c1ff"
android:endColor="#7F05c1ff"
android:angle="90"/>
</shape>

I had a similar problem in the past. Try to switch the order of your selector items, I don´t know why, but the behavior of a selector depends on the order of items. If this doesn´t work, try to deparate "selected" and "pressed". Do an extra item for every state.