In testing my cached theory, I discovered that you need to have at least two frames for the animation to continuously loop. When I added the gauge object again onDraw was continuously called. That makes me think that I should be using something else for what I'm doing.
I'm basically making a drawn speedometer getting speeds from the GPS. Each time the GPS updates I want to perform a smooth animation to the change in speed. I thought I could create a Drawable that contained it's current value and a target value, then add it to an animation that would take care of calling onDraw continuously until the current and target matched. Is there a better way? On Jul 25, 10:33 am, nkijak <[email protected]> wrote: > I'm trying to draw a "gauge" on the screen with information from > various sensors. I have a class that extends Drawable and a custom > view that during construction creates a new AnimationDrawable and sets > the only frame to my custom Drawable. I then start the > AnimationDrawable from my Activity onWindowFocusChanged method. My > custom Drawable onDraw method is only called once though. Is that by > design (as in onDraw is called for each frame once and it's cached and > shown over and over) or am I doing something wrong? > > [code from custom view's constructor] > _gaugeAnimation = new AnimationDrawable(); > _gaugeAnimation.setOneShot(false); > setBackgroundDrawable(_gaugeAnimation); > > GaugeDrawable gauge = new GaugeDrawable(); > gauge.setTargetValue(100); > _gaugeAnimation.addFrame(gauge, 500); > _gaugeAnimation.setVisible(true, false); --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en -~----------~----~----~----~------~----~------~--~---
