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Android: Draw shape with skewed corner

I want to use a background for my buttons. But when I use a png it slows down the app. Therefore I want to use a xml shape but I do not know how to make the corner cut (like on the picture).
By now I have the following shape which is just a rectangle:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#color/blue_semi_transparent"/>
<padding android:bottom="10dp" android:right="10dp" android:top="10dp" android:left="10dp"/>
<margin android:bottom="10dp" android:right="10dp" android:top="10dp" android:left="10dp"/>
</shape>
How can I draw the bottom right corner?

You can try this,
skewed_background.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="#3F8EEB" />
</shape>
</item>
<item>
<rotate
android:fromDegrees="110"
android:pivotX="90%"
android:pivotY="90%"
>
<shape android:shape="rectangle" >
<solid android:color="#FFF" />
</shape>
</rotate>
</item>
</layer-list>
sample_layout.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp"
android:orientation="vertical" >
<View
android:layout_width="200dp"
android:layout_height="50dp"
android:background="#drawable/triangle1"/>
</LinearLayout>
If you want to modify the skewed area you just need to change the value of fromDegrees, pivotX and pivotY value in the second item in skewed_background.xml.

This is exactly what you looking for
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<Button
android:id="#+id/button2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/bg"
android:paddingRight="15dp"
android:textColor="#ffffff"
android:layout_centerInParent="true"
android:text="Button" />
</RelativeLayout>
bg.xml
<?xml version="1.0" encoding="UTF-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<shape android:shape="rectangle">
<size
android:width="100dp"
android:height="40dp" />
<solid android:color="#13a89e" />
</shape>
</item>
<item
android:right="100dp"
android:left="100dp"
android:top="-100dp"
android:bottom="-100dp">
<rotate
android:fromDegrees="45">
<shape android:shape="rectangle">
<solid android:color="#ffffff" />
</shape>
</rotate>
</item>
<item
android:right="-100dp"
android:left="100dp"
android:top="-100dp"
android:bottom="-100dp">
<rotate
android:fromDegrees="45">
<shape android:shape="rectangle">
<solid android:color="#ffffff" />
</shape>
</rotate>
</item>
</layer-list>
OUTPUT

This will give you your desired result
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item android:drawable="#color/colorPrimary"/>
<item android:top="-20dp"
android:bottom="-50dp"
android:left="350dp"
android:right="-120dp">
<rotate
android:fromDegrees="10"
android:pivotX="50%"
android:pivotY="0%">
<shape
android:shape="rectangle">
<solid
android:color="?android:colorBackground"/>
</shape>
</rotate>
</item>
</layer-list>

Rectangle Shape with Arrow using XML

How to implement this shape of Departments header using shape and xml without 9-patch ?
I mean rectangle with arrow on the left.
My code snippet:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:bottom="1px"
android:left="#dimen/edittext_border"
android:right="#dimen/edittext_border"
android:top="#dimen/edittext_border">
<shape android:shape="rectangle">
<stroke
android:width="#dimen/edittext_border_width"
android:color="#color/menu_divider" />
<solid android:color="#color/background" />
<corners android:radius="4dp" />
</shape>
</item>
</layer-list>

if you are looking for someting like this, try the following code..
Make a xml arrow_shape in your drawable folder.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<rotate android:fromDegrees="45" android:toDegrees="45"
android:pivotX="-40%" android:pivotY="87%" >
<shape android:shape="rectangle" >
<stroke android:color="#c6802a" android:width="10dp"/>
<solid android:color="#c6802a" />
</shape>
</rotate>
</item>
</layer-list>
Make a xml rectangle_shape in your drawable folder.
<?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="#B2E3FA" />
</shape>
</item>
In your main xml file
<LinearLayout
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"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal"
android:gravity="center"
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:context="com.example.stpl.myapplication.MainActivity">
<RelativeLayout
android:id="#+id/arrow"
android:layout_width="30dp"
android:layout_height="30dp"
android:background="#drawable/arrow_shape"
android:rotation="270" />
<RelativeLayout
android:id="#+id/rectangle"
android:layout_width="150dp"
android:layout_height="50dp"
android:background="#drawable/rectangle_shape"
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:android="http://schemas.android.com/tools" />
</LinearLayout>

A solution with a gradient:
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:width="2dp" android:height="2dp"
android:top="4dp" android:left="3dp">
<rotate android:fromDegrees="45"
android:pivotX="0"
android:pivotY="0">
<shape>
<solid android:color="#D83945"/>
</shape>
</rotate>
</item>
<item android:width="50dp" android:height="11dp" android:left="3dp">
<shape>
<gradient
android:startColor="#D83945"
android:endColor="#F9700C"
/>
<corners
android:radius="2dp"
/>
</shape>
</item>
</layer-list>
The final result is:

Triangle Shape - How does it work?

I found several answers to How to draw a triangle shape in Android in the resources files. But I don't found any to explain how I can change the triangle rotation.
Example that I found:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<rotate
android:fromDegrees="45"
android:toDegrees="45"
android:pivotX="-40%"
android:pivotY="87%" >
<shape
android:shape="rectangle" >
<stroke
android:color="#color/color_app_transparent"
android:width="10dp" />
<solid
android:color="#color/color_app_primary" />
</shape>
</rotate>
</item>
</layer-list>
Somebody can explain how can I change the Triangle Shape to do a arrow like this:

I manage to draw that arrow, here is the code:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item android:id="#+id/triangle_shape">
<rotate
android:fromDegrees="45"
android:toDegrees="45"
android:pivotX="0%"
android:pivotY="140%" >
<shape
android:shape="rectangle" >
<stroke
android:color="#color/color_app_transparent"
android:width="2dp" />
<size android:width="50dp" android:height="50dp"/>
<solid
android:color="#color/color_app_primary" />
</shape>
</rotate>
</item>
</layer-list>
For what I understand, I had to rotate the square 45º and then I tried to adjust the X and Y points to manage to hide most of the square and show only one edge and this way I made the arrow.
The shape after rotating 45º:
And then the final result after changing the points X and Y:
I used a ImageView to display my arrow with width and height as wrap_content.

Drawing triangle in XML [duplicate]

This question already has answers here:
Making a triangle shape using XML definitions?
(20 answers)
Closed 8 years ago.
In XML I'm attempting to draw a drop down triangle to be used as a background for a button but cant seem to get my head round the rotate XML tags.
Here's my XML code:
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<rotate
android:fromDegrees="45"
android:toDegrees="45"
android:pivotX="80%"
android:pivotY="20%">
<shape
android:shape="rectangle" >
<solid
android:color="#FFCC00" />
</shape>
</rotate>
</item>
</layer-list>
And here's the outcome of the XML:
Any ideas are appreciated.

i can draw triangle shape using XML
triangle .xml
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<rotate
android:fromDegrees="45"
android:pivotX="-40%"
android:pivotY="87%"
android:toDegrees="45" >
<shape android:shape="rectangle" >
<stroke
android:width="10dp"
android:color="#00000000" />
<solid android:color="#00ACED" />
</shape>
</rotate>
</item>
</layer-list>

Try out the Below
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item >
<rotate
android:fromDegrees="-45"
android:toDegrees="45"
android:pivotX="90%"
android:pivotY="-50%" >
<shape
android:shape="rectangle" >
<stroke android:color="#android:color/transparent" android:width="1dp"/>
<solid
android:color="#ffffff" />
</shape>
</rotate>
</item>
</layer-list>

Android - dynamically change the shape file attributes

I have a shape.xml file something like this :
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android" >
<item>
<rotate
android:fromDegrees="-45"
android:pivotX="0%"
android:pivotY="100%"
android:toDegrees="-45" >
<shape android:shape="rectangle" >
<stroke
android:layout_width="match_parent"
android:color="#color/red" />
<solid android:color="#color/red" />
</shape>
</rotate>
</item>
</layer-list>
I have to change the attributes of this file dynamically. I know that i have to use GradientDrawable but i am not be able to get the exact configuration as defined in this file. Can anyone help.