这几年就学了点毛

In an Android application, the uers interface is built using View and ViewGroup objects. There are many types of views and view groups, each

应用程序核心的三个组件包括-activities,services,和broadcast receivers - 都是通过消息被激活,我们把他称为intents.intent发送消息可以很容易的在同一或不同的应用程序的组件之间绑定.intent是一个Intent对象. 一个In

You define a ContentProvider subclass to expose your data to others using the conventions expected by ContentResolver and Cursor objects. Principally, this means implementing six abstract methods de