Recommend 10 commonly used getView usages

I didn’t notice that listview’s getView would be executed multiple times before. This time, because the layout was more complicated, I went to breakpoint tracking during testing and found that the same piece of data was being executed repeatedly. I thought it was strange, so I searched online. The explanations on the Internet are basically the same, that is, when the ListView is laid out, neither height nor width is fill_parent, resulting in continuous calculation of height and continuous refreshing. Or its parent container is not set to fill_parent. If the layout is too complex, it is unrealistic to adjust everything according to fill_parent. So I thought of another solution, which is to dynamically fix the height. After the program runs, fix the height of the ListView and then initialize the Item information. private void fixedListView(){ listView = (ListView) findViewById(R.id.listview);

1. Solution to repeatedly refreshing ListView in android and executing getView repeatedly

#Introduction: I didn’t notice that listview’s getView would be executed repeatedly many times. During the test, I went to breakpoint tracking and found that the same piece of data kept executing. Repeat the execution, and share the correct solution with you below. I hope it will be helpful to you

2. Android Custom ListView

# Introduction: This article talks about implementing a custom list Android program. The program will implement a custom adapter (Adapter) to bind data through contextView.setTag binds data to a ListView with buttons. When the system displays a list (ListView), it will first instantiate an adapter. This article will instantiate a custom adapter. To implement a custom adapter, you must manually map data. In this case, you need to override the getView() method. The system will call this method when drawing each row of the list.

3. Detailed introduction to several writing methods for android listview optimization

##Introduction: listview Aviewthatshowsitemsinaverticallyscrollinglist. A list view that displays a vertical scrolling child. In Android development, listview is used in many places. It is used to display data into a vertical view. Using listview is a standard adapter mode, using data--, interface--xml and adapter--adapter. The data is displayed by the adapter in the required way. XML describes how the data is displayed, and these activities are controlled in the activity. If you use a custom adapter, you will need to rewrite the getView method,

4. Android Talk--Usage of BaseAdapter in ListView

#Introduction: After developing and using various Adapters, the most comfortable one to use is BaseAdapter. Although it is a little more troublesome to use than other adapters, it is still useful. It can implement many of your favorite list layouts, such as ListView, GridView, Gallery, Spinner, etc. It is directly inherited from the interface class Adapter. When using BaseAdapter, you need to rewrite many methods, the most important of which is getView, because it will involve issues such as ListView optimization. For other methods, please refer to the linked article

5. android source code learning yii2 source code learning notes 19)

Introduction: android source code learning: android source code learning yii2 source code learning notes 19): view remaining code 1/**2 * @return string|boolean the view file currently being rendered. False if no view file is being rendered.3 * The view file currently being rendered 4*/ 5 public function getViewFile()6 {7return end($th

##6.

Direct3D rendering to texture A little trick

Introduction: In Direct3D development, multiple passes are often required in HLSL files, which requires rendering to texture technology. In a D3D system currently developed, an Effect file has 3 techniques and a total of 10 passes, which means it requires 9 renderings to the texture. It is necessary to apply for multiple Texture2D, RenderTargetView and ShaderResourceView, and render according to 9 passes

[Related Q&A Recommendations]:

java - Is it possible to add multiple desktop widgets to android?

android - How can the Menu in Activity use SnackBar (I don’t know how to get the view)?

java - What is the rendering completion event of View?

android - How to understand the null and non-null of BaseAdapter.getVeiw() parameter convertView

ListView in android is nested in GridView, one of which GridView content cannot be displayed?

The above is the detailed content of Recommend 10 commonly used getView usages. For more information, please follow other related articles on the PHP Chinese website!