custom adapter

Adapter mode practice-restructuring the circle menu of Hongyang's Android Construction Bank For many developers, cool UI effects are the most attractive to them. Many also learn some well-known UI libraries for these cool effects. The premise of making cool effects is that you must understand the custom View. As a 90-year-old citizen, it is no exception. Especially for the small people who were just in the

same principle). 1. Create a Recyclerview and instantiate it, then wait for our little brother (Adapter) to finish the rest of the physical work. Recyclerview mrecycler= (Recyclerview) Findviewbyid (R.id.mrecycler); Mrecycler.setlayoutmanager (New Staggeredgridlayoutmanager (2,staggeredgridlayoutmanager.vertical)); 2.Adapter use, we first understand the callback cycle of ea

ListView, to get users to customize the layout, parsing, and data binding of menu items, and all you need to know is that each menu item is a view. This separates the changes through the adapter layer, and you rely only on adapter this abstraction. Each user can have a different implementation, you only need to implement the circular menu measurement, layout work can be. This allows you to embrace change,

--------------------------------------------------------------------------------------Then bind the component to mainActivity. java. Private ListView listView;Private Adapter adapter; // AdapterPrivate ArrayList Statement of objects aboveBind listView = (ListView) findViewById (R. id. lv_left_menu );Objects and above are bound to objects.ArrayList = new ArrayList Assume that four items are stored in the ar

from various aspects, and then look at some examples. I should be able to master it completely! How the adapter works: How does the adapter process the obtained data and display it? Actually it is very simple. To put it bluntly, the adapter is also a class. In the class, it implements the methods of the parent class: Public int getCount () // get the number o

that are not highly correlated with each other, including some classes that may be introduced in the future. 5.3.3 when the two classes do the same or similar things but have different interfaces. 5.3.4 the class developed by the old system has implemented some functions, but the client can only access it in the form of another interface, but we do not want to manually change the original class. 5.3.5 use third-party components. The definition of component interfaces is different from that of

from all aspects, and then look at some examples that I think should be able to master it completely! How the adapter works:How does the adapter handle the resulting data and show it out? In fact, it is very simple, the adapter it is also a class, in the class it is actually the parent class of these methods:public int GetCount ()///number of rows to get dataPu

each other, including some classes that may be introduced in the future. 3: When two classes do the same or similar things but have different interfaces. 4: The class developed by the old system has implemented some functions, but the client can only access it in the form of another interface, but we do not want to manually change the original class. 5: third-party components are used. The definition of component interfaces is different from that of custom