"Android Beginner" 10, the use of intent objects

Start Android 1, the basic concept of intent Object 1) Intent is one of the Android application components; 2) Intent object represents an intention in the Android system; 3) The most important part of intent is        Action and data, 2, the basic use of Intent objects 3, using intent to transfer data between activity Method 1) between activity can pass data through intent object; 2) Use the Putextra () series method to store data in the intent object 3) use the Getxxxextra () series method to extract data from the intent object (XXX represents the transmitted data type)