public void startAnimation(CanvasAnimation animation) {
GLRoot root = getGLRoot();
if (root == null) throw new IllegalStateException();
mAnimation = animation;
if (mAnimation != null) {
mAnimation.start();
root.registerLaunchedAnimation(mAnimation);
}
invalidate();
}
protected void renderChild(GLCanvas canvas, GLView component) {
if (component.getVisibility() != GLView.VISIBLE && component.mAnimation == null) return;
int xoffset = component.mBounds.left - mScrollX;
int yoffset = component.mBounds.top - mScrollY;
canvas.translate(xoffset, yoffset);
CanvasAnimation anim = component.mAnimation;
if (anim != null) {
canvas.save(anim.getCanvasSaveFlags());
if (anim.calculate(AnimationTime.get())) {
invalidate();
} else {
component.mAnimation = null;
}
anim.apply(canvas);
}
component.render(canvas);
if (anim != null) canvas.restore();
canvas.translate(-xoffset, -yoffset);
}