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Usually, app needs to load a lot of layout and data when it is first started. Our company needs to load an Activity with 7 fragments in it when it is first started. Add all kinds of data, often lead to white screen phenomenon at startup. In order to solve all kinds of phenomena perfectly, some efforts have been spent. Here is a record. 1: Cli ...

Zero Preparations 0 FBI WARNING The article is extremely verbose and winding. 1 version Spring version: spring 5.1.2.RELEASE IDE : idea 2018.3 2 Bean Demo package ioc; /** * java bean */ public class Person { private String name; private Integer age; public String getName() { return name; } public void setName( ...

The official address of this open source framework: https://github.com/astuetz/PagerSlidingTabStrip It can be understood as an interactive page indicator control used with ViewPager. If you don't say much, first put on the effect map. In order to demonstrate the difference between pSTS Indicator Height and pSTS Underline Height, different sett ...

The ViewModel class is designed to store and manage UI-related data in a perceptible lifecycle manner, and the data in the ViewModel will survive even if the activity configuration changes. What are the advantages of ViewModel? 1. Data persistence Before the destruction and reconstruction of activity, we can use the onSave I ...

1. Situational assumptions: Suppose there is a requirement, a layout with FragmentLeft and FragmentRight in an Activity, and a layout with Textview at the bottom. Now when a button in FragmentLeft is clicked, FragmentRight and Textview in Activeness respond, similar to this effect: 2. Solutions: i. Define an interface in Frag ...

I. Abnormal Contents could not initialize proxy - no Session 2. Analysis of Abnormal Reasons First, I have the following fragment in my persistence class User: //User.java @Entity @Table(name = "user_inf") public class User { //User's Order Information @OneToMany(targetEntity=Order.class,mappedBy="user") private Set<Order&gt ...

Delegation in Kotlin In delegation mode, two objects participate in processing the same request, and the object receiving the request delegates the request to another object for processing. Class delegate class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCr ...

Based on http Range Requests protocol, this paper realizes the function of fragmented download. Use scenarios include browser-based streaming file fragment transfer, client-based fragmented download, etc. principle http through Range Requests related header, can negotiate with the server to achieve partial requests. Here we will not elaborate o ...

demand Based on MTK8163 8.1 platform, customize the navigation bar, dynamically click on icons to hide virtual keys, and the customization steps are shown in the next article. thinking Before you start to do the requirement, you must read the code flow of the System UI Navigation module!!! Don't copy other people's changed r ...

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