Creating cool animation <50 Android Hacks>

Hack 5: transitions with TextSwitcher and ImageSwitcher

切换TextView内容时如何显示动画?

使用TextSwitcher,步骤: - textSwitcher.setFactory - textSwticher.setInAnimation/setoutAnimation

Hack 6: Adding eye candy to your ViewGroups’s children

添加child view到viewgroup时,显示动画?

LayoutAnimationController controller = new LayoutAnimationController(animationSet, 0.5f);
mListView.setLayoutAnimation(controller);

Hack 7: Doing animation over the canvas

A canvas work for you as a interface to the actual surface upon which your graphics will be drawn. Canvas holds all draw calls,这些calls在underlying Bitmap上执行.

Hack 8: Slideshow using the Ken Burns effect

Ken Burns effect is nothing more than a type of panning and zooming effect used in video production from still imagery.

通过放大.以及translate动画实现Ken Burns effect. 为了使用新的animation API并兼容3.0以下使用了NineOld库.

ps: idea很好,把rss feed列表改为image+title展示,因为静态图片展示太无聊,又添加Ken Burns效果.