How to create a button of arbitrary shape without using bitmaps

I am trying to create custom buttons for a touchscreen device. I just want triangles and circles, but without generating a bitmap for each one. Is this possible?

i.e. instead of this:

<button x="center" y="50" width="50" height="50">
    <state id="stateDefault" bitmap="@Drawables.UpArrow" />
</button>

Can I do something like this:

<button x="center" y="50" width="50" height="50">
    <state id="stateDefault">
    	<shape type = "rectangle" x = "0" y = "0" width = "10" height = "10"/>
    </state>
</button>

Top Replies

jim_m_58 over 5 years ago +1

dc.drawCircle, dc.fillPolygon. If you're using layouts, you can do it after View.onUpdate(dc)

You can set the color, location, etc, very easily.

All Replies

0 jim_m_58 over 5 years ago

dc.drawCircle, dc.fillPolygon. If you're using layouts, you can do it after View.onUpdate(dc)

You can set the color, location, etc, very easily.

0 Barney over 5 years ago in reply to jim_m_58

Hi Jim. Sorry I don't understand. Are you saying taht I use layout to position buttons then draw over them with the circle polygon or whatever? I am trying to use layouts to make my applciation compatible across multiple devices, some of which are touch-screen and some aren't. If I have to use dc.drawCircle then i am back to doing it in code, no?

Do you have an example?

Apologies, but I have spent a long time now trying to figure this out and am a bit lost if I'm honest. Thank you.

0 jim_m_58 over 5 years ago in reply to Barney

Here's a case where I have an on screen button, using a rounded rectangle. While this app doesn't use layouts, it could, where all the other text is in the layout, and after the View.onUpdate, the button gets drawn.

You also need to handle input, but only for a specific button,