introduction to canvas
Post on 17-Jan-2015
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by Tan Teck Loon
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ANDROID: CANVAS THE BASICS
CodeAndroid.org
Why Canvas? For Multimedia Applications
Games, full visual applications
Control over the Visual Effects
Allows animation to be done freely
Unique Response according to author’s design
No longer Needed
Fundamentals
Drawing an image(basic) Specify the coordinate and paint
Coordinate X and Y and paint
Paint functions
Color
Alpha(transparent)
http://developer.android.com/reference/android/graphics/Paint.html
Canvas itself
Color(background)
Drawing shape and text
Adding Bitmap
Text Size and alpha
Response onKeyDown(int, KeyEvent)
onKeyUp(int, KeyEvent)
onTrackballEvent(int, KeyEvent)
onTouchEvent(int, KeyEvent)
Question and Sharing
Thank you
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