摘要： 1. Android Listeners:http://developer.android.com/reference/android/view/View.html 2. States event:1). http://stackoverflow.com/questions/8411418/android-button-states-programmatically-in-java-not-xml2). http://stackoverflow.com/questions/5092649/android-how-to-update-the-selectorstatelistdrawable-. 阅读全文