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Button color not change... ( Android)

I was working on a project I can create a round button and set the gradient color but when I use it in Button background the color not changed.
rounded_shape.xml
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<gradient
android:startColor="#9bbbc1"
android:centerColor="#456268"
android:endColor="#456268"
android:angle="270" />
<corners
android:radius="25dp" >
</corners>
</shape>
Button in Xml
<Button
android:id="#+id/btn1"
android:layout_below="#+id/edttxt1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="80dp"
android:layout_marginTop="2dp"
android:layout_marginRight="80dp"
android:layout_marginBottom="2dp"
android:background="#drawable/rounded_shape"
android:padding="12dp"
android:paddingTop="2dp"
android:paddingEnd="2dp"
android:paddingBottom="4dp"
android:text="Analyse"
android:textAllCaps="false"
android:textColor="#android:color/white"
android:textSize="20dp"
android:textStyle="italic"></Button>

Try it in rounded_shape.xml :
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="true" >
<shape android:shape="rectangle" >
<corners android:radius="12dip" />
<stroke android:width="1dip" android:color="#333333" />
<gradient android:angle="-90" android:startColor="#333333" android:endColor="#555555" />
</shape>
</item>
<item android:state_focused="true">
<shape android:shape="rectangle" >
<corners android:radius="12dip" />
<stroke android:width="1dip" android:color="#333333" />
<solid android:color="#58857e"/>
</shape>
</item>
<item >
<shape android:shape="rectangle" >
<corners android:radius="12dip" />
<stroke android:width="1dip" android:color="#333333" />
<gradient android:angle="-90" android:startColor="#333333" android:endColor="#555555" />
</shape>
</item>
</selector>

The AppCompat library helps with bringing modern theming to your app on all Android versions, so change Button to androidx.appcompat.widget.AppCompatButton:
<androidx.appcompat.widget.AppCompatButton
android:id="#+id/btn1"
android:layout_below="#+id/edttxt1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_marginLeft="80dp"
android:layout_marginTop="2dp"
android:layout_marginRight="80dp"
android:layout_marginBottom="2dp"
android:background="#drawable/rounded_shape"
android:padding="12dp"
android:paddingTop="2dp"
android:paddingEnd="2dp"
android:paddingBottom="4dp"
android:text="Analyse"
android:textAllCaps="false"
android:textColor="#android:color/white"
android:textSize="20dp"
android:textStyle="italic”/>

How do I add animation / styling to a button? Android Studio

I have a button
<Button
android:id="#+id/button"
android:layout_width="match_parent"
android:layout_height="45dp"
android:onClick="loginIsClicked"
android:layout_marginStart="8dp"
android:layout_marginTop="12dp"
android:layout_marginEnd="8dp"
android:background="#drawable/button"
android:text="#string/Auth"
android:textAllCaps="false"
android:textColor="#color/white"
android:textSize="16sp"
android:enabled="false" />
<?xml version="1.0" encoding="utf-8"?>
<shape android:shape="rectangle" xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#color/red"/>
<corners android:radius="10dp"/>
</shape>
How can I add animation to the button used in the default buttons?
Example:
enter image description here

If I understood correctly, what you are looking for is a ripple. Wrap your shape in a ripple as follows and provide your ripple color:
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="#color/rippleColor">
<item>
<shape android:shape="rectangle">
<solid android:color="#color/red"/>
<corners android:radius="10dp"/>
</shape>
</item>
</ripple>

Add MaterialButton.
<com.google.android.material.button.MaterialButton
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:text="Button" />
Also do not forget to change theme Theme.AppCompat.Light.DarkActionBar to Theme.MaterialComponents.Light.DarkActionBar in styles.xml file.

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>

How to Change DrawableLeft in Android Selector?

How can I change the DrawableLeft image of a button using selectors?
I'm using the below selector file and a shape XML for drawable. When the button is clicked, the image doesn't change.
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_selected="true"
android:drawable="#drawable/toolbar_button_pressed"
android:drawableLeft="#drawable/ic_selected" />
<item android:state_pressed="true"
android:drawable="#drawable/toolbar_button_pressed"
android:drawableLeft="#mipmap/ic_selected" />
<item android:drawable="#drawable/toolbar_button_normal" />
</selector>
toolbar_button_pressed
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle" >
<corners android:radius="10dp" />
<solid android:color="#color/primary_dark" />
<padding android:left="10dp"
android:top="10dp"
android:right="10dp"
android:bottom="10dp" />
<stroke android:width="1dp"
android:color="#color/divider" />
</shape>
Layout Button
<Button android:id="#+id/background_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/btn_background"
android:drawableLeft="#drawable/ic_background"
style="#style/ToolbarButton"
android:drawablePadding="10dp"
android:singleLine="true"
android:layout_weight="1" />

I was able to solve this using selectors:
<Button android:id="#+id/style_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/style_button_text"
android:drawableLeft="#drawable/toolbar_drawable_left"
style="#style/ToolbarButton"
android:layout_weight="1" />
/res/drawable/toolbar_drawable_left.xml:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_selected="true"
android:drawable="#drawable/ic_about_highlight"/>
<item android:state_pressed="true"
android:drawable="#drawable/ic_about_highlight"/>
<item android:drawable="#drawable/ic_about" />
</selector>

Buttons design like in Jeepsing

I'm trying to create buttons in Android the same way as in Jeepsing application for iPhone using linear layout but without success. Maximum that I get is three separated buttons the same size.
I need three buttons without background, separated only by their borders when two of them have one rounded corner like on the following screenshot:
This is my last try:
<LinearLayout android:id="#+id/LinearLayout02" android:layout_height="wrap_content" android:layout_width="match_parent">
<Button android:id="#+id/Button04" android:text="Button" android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content"></Button>
<Button android:id="#+id/Button05" android:text="Button" android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content"></Button>
<Button android:id="#+id/Button06" android:text="Button" android:layout_width="0dp" android:layout_weight="1" android:layout_height="wrap_content"></Button>
</LinearLayout>
I also tried GridLayout but without success.

just create shapes with corners radius for both pressed/released effects..
<solid android:color="#77000000" />
<corners android:radius="10dip" />
<gradient
android:angle="-90"
android:endColor="#44FF0000"
android:startColor="#CCFF0000" />
<padding
android:bottom="10dip"
android:left="10dip"
android:right="10dip"
android:top="10dip" />
<stroke
android:width="1dip"
android:color="#000000" >
</stroke>
for more info about shapes refer this
After creating shapes for pressed/released effects create a XML file for button selector like following example
<selector
xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:state_pressed="true"
android:drawable="#drawable/prs_arrival_fb_btn" /> <!-- pressed -->
<item
android:state_focused="true"
android:drawable="#drawable/prs_arrival_fb_btn" /> <!-- focused -->
<item
android:drawable="#drawable/arrival_fb_content_btn" /> <!-- default -->
</selector>
then set this selector to your button as background.. like the following example..
<Button android:text="Play" android:id="#+id/playBtn"
android:background="#drawable/button_selector"
android:textColor="#ffffff" />

This is how I achieved it:
up_left_button_selector.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#drawable/up_left_button_shape_pressed"
android:state_pressed="true" />
<item android:drawable="#drawable/up_left_button_shape_pressed"
android:state_selected="true" />
<item android:drawable="#drawable/up_left_button_shape_released" />
</selector>
up_left_button_shape_pressed.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#ff0000ff"
android:endColor="#ff0000ff"
android:angle="45"/>
<padding android:left="0dp"
android:top="0dp"
android:right="0dp"
android:bottom="0dp" />
<corners android:radius="8dp"
android:bottomRightRadius="0dp" android:bottomLeftRadius="0dp"
android:topLeftRadius="8dp" android:topRightRadius="0dp"/>
<stroke android:width="2dp" android:color="#ff444444"/>
</shape>
up_center_button_shape_released.xml
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#00000000"
android:endColor="#00000000"
android:angle="45"/>
<padding android:left="0dp"
android:top="0dp"
android:right="0dp"
android:bottom="0dp" />
<corners android:radius="8dp"
android:bottomRightRadius="0dp" android:bottomLeftRadius="0dp"
android:topLeftRadius="8dp" android:topRightRadius="0dp"/>
<stroke android:width="2dp" android:color="#ff444444"/>
</shape>
Center and right button shapes are the same, just need to play with which corners to round.
And finally the view layout:
<TableRow android:id="#+id/buttonsRow"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:paddingTop="10dp">
<RelativeLayout android:id="#+id/buttonsRowRelativeLayout"
android:layout_height="wrap_content"
android:layout_width="match_parent">
<Button
android:id="#+id/leftButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/save"
android:textColor="#ffffffff"
android:background="#drawable/up_left_button_selector"
android:layout_toLeftOf="#+id/centerButton" />
<Button
android:id="#+id/centerButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/change"
android:textColor="#ffffffff"
android:background="#drawable/up_center_button_selector"
android:layout_centerHorizontal="true"/>
<Button
android:id="#+id/rightButton"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/send"
android:textColor="#ffffffff"
android:background="#drawable/up_right_button_selector"
android:layout_toRightOf="#+id/centerButton" />
</RelativeLayout >
</TableRow>
And it looks pretty good.