android - Making a triangle shape using XML definitions?

Question

Is there a way that I can specify a triangle shape in an XML file?

<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="triangle">
  <stroke android:width="1dip" android:color="#FFF" />
  <solid android:color="#FFF" />
</shape>

Can we do this with a path shape or something? I just need an equilateral triangle.

Thanks

Answer 1

In this post I describe how to do it. And here is the XML defining triangle:

<?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/transparent" android:width="10dp"/>
                <solid
                    android:color="@color/your_color_here" />
            </shape>
        </rotate>
    </item>
</layer-list>

Refer to my post if something is unclear or you need explanation how it is built. It is rotated an cutout rectangle :) it is very smart and well working solution.

EDIT: to create an arrow pointing like --> use:

...
android:fromDegrees="45"
android:toDegrees="45"
android:pivotX="13%"
android:pivotY="-40%" >
...

And to create an arrow pointing like <-- use:

android:fromDegrees="45"
android:toDegrees="45"
android:pivotX="87%"
android:pivotY="140%" >