Use of adapter adapter in Android

　　　　The most commonly used adapters in Android are adapter three kinds: 1.ArrayAdapter 2.SimpleAdapter 3.BaseAdpter, here we use the code in conjunction with the text to understand the way.

　　You first need to set up three button buttons in the start layout activity_main.xml file and set the click events separately and combine with the mainactivity

　　

One: Arrayadapter: Easy-to-use adapter, typically used to wrap multiple values of an array or list collection into multiple list items.

1. The first step in declaring Arrayadapter: Create a Activity_array_adapter.xml, create a ListView control

2. Declaring the control in Arrayadapteractivity and building the adapter

　　　　Here is how to prepare the Data section: array data and collection data two

　　　　Here is the second parameter in adapter () when building the adapter, Textviewresouceid, which represents a Arrayadapter list item component

Two: Simpleadapter:

Create activity and declare the display interface Activity_simple_adapter

　　　　

　　　　

　　　　

Declaring a Activity_simple_adapter_item.xml file in build adapter

　　　　

　　　　

Three: Baseadapter

Write to an entity class user class

　　　　

Create a Userlistadapter class

　　　　

　　　　

　　　　

Returns the Uiactivity_base_adapter_item.xml layout file in the Userlistadapter,getview method, where the method 1,getcount () and Method 4,getview () are important

Here are the five TextView written in Baseadapter written separately.

　　　　

Statement baseadapteractivity

　　　　

Create a layout UI interface Activity_base_adapter

　　　　

This part is my own practice adapter adapter when the set of code, but only the use of the ListView, but not listed in the use of the GridView, but the difference is not particularly large

　　　　

　　

　

Use of adapter adapter in Android