protected void render(GLCanvas canvas) { boolean transitionActive = false; if (mTransition != null && mTransition.calculate(AnimationTime.get())) { invalidate(); transitionActive = mTransition.isActive(); } renderBackground(canvas); canvas.save(); if (transitionActive) { mTransition.applyContentTransform(this, canvas); } for (int i = 0, n = getComponentCount(); i < n; ++i) { renderChild(canvas, getComponent(i)); } canvas.restore(); if (transitionActive) { mTransition.applyOverlay(this, canvas); } }