startActivity(intent);然后finish();
activity的切换效果是缩放的那种
finish();然后startActivity(intent);
activity的切换效果是全屏从上而下缩放下拉的那种，很夸张
startActivity(intent);然后finish();和finish();然后startActivity(intent);
【上篇】android in practice_Implementing custom message loops(ProducerConsumer project)
【下篇】android RelaLayout
【下篇】android RelaLayout