Develop Reference

Android spinner - change arrow icon but keep bottom border

I have a spinner with bottom line
<Spinner
style="#style/Base.Widget.AppCompat.Spinner.Underlined"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>
But when I change a arrow icon apliyng the new style
<style name="SpinnerTheme" parent="Base.Widget.AppCompat.Spinner.Underlined">
<item name="android:background">#drawable/spinner_arrow</item>
</style>
My bottom line disappears.
How to change arrow icon and keep bottom line?

Thanks Ĝüptå Šhãsĥwæt for a answer, here is a full working drawable for API 21+
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<layer-list>
<item
android:bottom="1dp"
android:left="-2dp"
android:right="-2dp"
android:top="-2dp">
<shape android:shape="rectangle">
<stroke
android:width="1dp"
android:color="#80909c"/>
</shape>
</item>
<item >
<bitmap
android:gravity="right" android:src="#drawable/spinner_arrow" />
</item>
</layer-list>
</item>
</selector>

<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<layer-list>
<item>
<bitmap
android:gravity="right" android:src="#drawable/spinnerr" />
</item>
<item android:width="650dp" android:height="1dp" android:gravity="bottom">
<shape android:shape="rectangle">
<solid android:color="#color/colorPrimaryDarker" />
<corners android:radius="10dp" />
</shape>
</item>
</layer-list>
</item>
create a drawable background and setas background the bitmap used in this drawable is your down arrow image

How to set different color for dropdown arrow and under line in spinner?

I have spinner with dropdown arrow and under line and it's works well if I set same color for dropdown arrow and under line.
I set color with android:backgroundTint="#FFFFFF"
Refer my code below
<Spinner
android:id="#+id/spinnerPriority"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:backgroundTint="#FFFFFF" />
and selector
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<layer-list>
<item
android:left="-2dp"
android:right="-2dp"
android:top="-2dp">
<shape>
<stroke
android:width="1dp" />
</shape>
</item>
<item>
<bitmap android:gravity="center_vertical|right"
android:src="#drawable/ic_arrow_down" />
</item>
</layer-list>
</item>
</selector>
How I can set different color for dropdown arrow and under line in spinner?

try this below code my friend it will help you
<layer-list>
<item>
<shape android:shape="rectangle" >
<solid android:color="#android:color/transparent" />
<!-- background color of box -->
</shape>
</item>
<item
android:left="-2dp"
android:right="-2dp"
android:top="-2dp">
<shape>
<solid android:color="#android:color/transparent" />
<stroke
android:width="1dp"
android:color="#ff00" />
<!-- color of stroke -->
</shape>
</item>
<item android:right="5dp">
<bitmap android:gravity="center_vertical|right" android:src="#drawable/arrow" />
</item>
</layer-list>

Android EditText bottom line color and theme changes

hello all i need to remove the edittext default style i want to remove the selected portion from both the side on focus of edittext or on normal edittext i just want the simple black line on normal edittext and blue line on focus
I have created 1 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="line">
<!-- Draw a 2dp width border around shape -->
<stroke android:width="1dp" android:color="#color/blue" />
</shape>
<!-- Overlap the left, top and right border using background color -->
<item
android:bottom="1dp"
>
<shape android:shape="rectangle">
<solid android:color="#color/white"/>
</shape>
</item> <!-- pressed -->
</item>
<item android:state_focused="true"><shape android:shape="rectangle">
<!-- Draw a 2dp width border around shape -->
<stroke android:width="1dp" android:color="#color/blue" />
</shape></item>
<!-- focused -->
<item><shape android:shape="rectangle">
<!-- Draw a 2dp width border around shape -->
<stroke android:width="1dp" android:color="#color/orange" />
</shape></item>
<!-- default -->
</selector>
but it giving me RECTANGLE i just want LINE #bottom

Create the new xml file inside drawable folder.
lets say
a.xml
<?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="#android:color/transparent" /> <!--background color of box-->
</shape>
</item>
<item
android:top="-2dp"
android:right="-2dp"
android:left="-2dp">
<shape>
<solid android:color="#android:color/transparent" />
<stroke
android:width="1dp"
android:color="<Focus color>" /> <!-- color of stroke -->
</shape>
</item>
</layer-list>
Create another new xml file in drawable, lets say
b.xml
<?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="#android:color/transparent" /> <!--background color of box-->
</shape>
</item>
<item
android:top="-2dp"
android:right="-2dp"
android:left="-2dp">
<shape>
<solid android:color="#android:color/transparent" />
<stroke
android:width="1dp"
android:color="#8AC42F" /> <!-- color of stroke -->
</shape>
</item>
</layer-list>
Create another new xml file in drawable.
lets say
c.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_focused="true"
android:drawable="#drawable/a"></item>
<item android:drawable="#drawable/b">
</item>
</selector>
Try this code.
this is a selector file. it has to be made background to the edittext.
selector automatically switches between two drawable file acording to its (edittext's) state.
Using This EditText
<EditText
android:id="#+id/id_Login_emal_et"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:background="#drawable/c"
android:ems="10"
android:padding="10dip"
android:hint="Email"
android:inputType="textEmailAddress"
>

Use properties that define color for edit text that is colorControlActivated, colorControlHighlight and colorControlNormal in your app theme for style.xml.
<style name="Theme.App.Base" parent="Theme.AppCompat.Light.DarkActionBar">
<item name="colorControlNormal">#color/blackColor</item>
<item name="colorControlActivated">#color/blueColor</item>
<item name="colorControlHighlight">#color/blueColor</item>
</style>

Use Selector for different edittext states:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_window_focused="false" android:state_enabled="true"
android:drawable="#drawable/twitter_im_edittext_normal" />
<item android:state_window_focused="false" android:state_enabled="false"
android:drawable="#drawable/twitter_im_edittext_normal" />
<item android:state_pressed="true" android:drawable="#drawable/twitter_im_edittext_normal" />
<item android:state_enabled="true" android:state_focused="true" android:drawable="#drawable/twitter_im_edittext_focused" />
<item android:state_enabled="true" android:drawable="#drawable/twitter_im_edittext_normal" />
<item android:state_focused="true" android:drawable="#drawable/twitter_im_edittext_focused" />
<item android:drawable="#drawable/twitter_im_edittext_normal" />
</selector>
and your drawable would be as Jayanth sample:
<?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="#android:color/transparent" /> <!--background color of box-->
</shape>
</item>
<item
android:top="-2dp"
android:right="-2dp"
android:left="-2dp">
<shape>
<solid android:color="#android:color/transparent" />
<stroke
android:width="1dp"
android:color="#8AC42F" /> <!-- color of stroke -->
</shape>
</item>
</layer-list>

Try this code:
edit_text.xml
<EditText
android:layout_width="40dp"
android:layout_height="40dp"
android:id="#+id/edit_text"
android:background="#drawable/custom_edit_text_black_line"
/>
Put the Xml file in Drawable Folder (custom_edit_text_black_line.xml)
<?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="#android:color/black" />
</shape>
</item>
<item android:bottom="2dp">
<shape android:shape="rectangle">
<solid android:color="#ffffff" />
</shape>
</item>
</layer-list>
Put the Xml file in Drawable Folder (custom_edit_text_blue_line.xml)
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="rectangle">
<solid android:color="#color/colorPrimaryDark" />
</shape>
</item>
<item android:bottom="2dp">
<shape android:shape="rectangle">
<solid android:color="#ffffff" />
</shape>
</item>
</layer-list>
And in Activity write the below code :
edit_text.setOnFocusChangeListener(new View.OnFocusChangeListener() {
#Override
public void onFocusChange(View v, boolean hasFocus) {
if(hasFocus){
edit_text.setBackground(MainActivity.this.getResources().getDrawable(R.drawable.custom_edit_text_blue_line));
} else{
edit_text.setBackground(MainActivity.this.getResources().getDrawable(R.drawable.custom_edit_text_black_line));
}
}
});

Android - make an arrow shape with xml

I want to make a button for my shape like this one
Is there a way to do this with xml ?
Like setting some points, in my case I have 5..

What you need is to create a shape xml file in your project's drawable-xxx folder and then use this shape as background for a button.
Here is the shape file called arrow_shape.xml:
<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<!-- Colored rectangle-->
<item>
<shape android:shape="rectangle">
<size
android:width="100dp"
android:height="40dp" />
<solid android:color="#5EB888" />
<corners android:radius="0dp"/>
</shape>
</item>
<!-- This rectangle for the top arrow edge -->
<!-- Its color should be the same as the layout's background -->
<item
android:top="-40dp"
android:bottom="65dp"
android:right="-30dp">
<rotate
android:fromDegrees="45">
<shape android:shape="rectangle">
<solid android:color="#ffffff" />
</shape>
</rotate>
</item>
<!-- This rectangle for the lower arrow edge -->
<!-- Its color should be the same as the layout's background -->
<item
android:top="65dp"
android:bottom="-40dp"
android:right="-30dp">
<rotate
android:fromDegrees="-45">
<shape android:shape="rectangle">
<solid android:color="#ffffff" />
</shape>
</rotate>
</item>
</layer-list>
Then use it as button's background, for example
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/arrow_shape"/>
Here is the screenshot:
More info on Layer-List you can find here.
EDIT:
Keep in mind though that I used certain values for the shape's width and height. If you change those you might need to change the values of the top, bottom and right attributes. So, in that case consider using different values in your project's values directory.

<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:width="50dp" android:height="10dp" android:right="6dp">
<shape>
<solid android:color="#android:color/holo_green_dark"/>
<corners
android:bottomLeftRadius="2dp"
android:topLeftRadius="2dp"/>
</shape>
</item>
<item android:width="7dp" android:height="7dp"
android:left="50dp">
<rotate android:fromDegrees="45"
android:pivotX="0"
android:pivotY="0">
<shape>
<solid android:color="#android:color/holo_green_dark"/>
</shape>
</rotate>
</item>
</layer-list>

With the Material Components library you can just use the standard MaterialButton defining the shapeAppearanceOverlay attribute:
Something like:
<com.google.android.material.button.MaterialButton
app:shapeAppearanceOverlay="#style/ShapeAppearanceOverlay.Button.Triangle"
... />
And in your style define:
<style name="ShapeAppearanceOverlay.Button.Triangle" parent="">
<item name="cornerFamily">rounded</item>
<item name="cornerSizeTopLeft">0dp</item>
<item name="cornerSizeBottomLeft">0dp</item>
<item name="cornerFamilyTopRight">cut</item>
<item name="cornerFamilyBottomRight">cut</item>
<item name="cornerSizeTopRight">50%</item>
<item name="cornerSizeBottomRight">50%</item>
</style>

Android 3D button src padding

On screenshot you can see src image is at same position on both states.
I want move image down in pressed state.
layout
<ImageButton
android:id="#+id/button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/my_button"
android:src="#drawable/image" />
my_button.xml
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="true" >
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Top 1dp Shadow -->
<item>
<shape android:shape="rectangle">
<solid android:color="#248349" />
<corners android:radius="7dp" />
</shape>
</item>
<!-- Light bottom color -->
<item android:top="1dp">
<shape android:shape="rectangle">
<solid android:color="#2AB564" />
<corners android:radius="7dp" />
<stroke android:width="1px" android:color="#248349"/>
<padding
android:top="28dp"
android:bottom="36dp" />
</shape>
</item>
</layer-list>
</item>
<item>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Bottom 3dp Shadow -->
<item>
<shape android:shape="rectangle">
<solid android:color="#22A863" />
<corners android:radius="7dp" />
</shape>
</item>
<!-- Light top color -->
<item android:bottom="3dp">
<shape android:shape="rectangle">
<solid android:color="#2DCC70" />
<corners android:radius="7dp" />
<stroke android:width="1px" android:color="#22A863"/>
<padding
android:top="36dp"
android:bottom="28dp" />
</shape>
</item>
</layer-list>
</item>
</selector>
As you can see, I tried set padding android:top="36dp" android:bottom="28dp" and for pressed state android:top="28dp" android:bottom="36dp", but its same as without padding :/

What you need to do is to change the image drawable instead of the background. You can create a selector for it, and assign it a custom gravity based on it's pressed state:
<selector xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:state_pressed="true" >
<bitmap
android:src="#drawable/image"
android:gravity="bottom|center_vertical" />
</item>
<item>
<bitmap
android:src="#drawable/image"
android:gravity="center" />
</item>
</selector>
Set the scaletype of the ImageButton to fitXY, assign it a minimum width and height, and remove or modify the padding from the background, and it should work.