Category：Android
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Time：2019-8-24
Now, there are many screen sizes and full screen solutions on the market. Here I use a picture of millet to illustrate: Both of the above screens can be collectively referred to as Liu Hai Ping, but for the smaller Liu Hai on the right, the industry is generally referred to as water drop screen […]
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Time：2019-8-23
Parcelable and Serializable Serializable is a standardized serialization interface provided by Java. Parcelable is Android’s serialized interface for us. Contrast: 1. Parcelable is more complex than Serializable. 2. Parcelable is also much more efficient than Serializable. 3. Parcelable can’t be used when data is stored on disk, because Parcelable can’t guarantee the persistence of data […]
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Time：2019-8-22
Flutter is based on the development idea of React. React has this. props. children and Vue has <slot></slot> on the socket of sub-components. Of course, Flutter also has a similar Widget, which is Navigator, but it is implemented in the form of router (like < router-view > </router-view>??). The use of Navigator has three attributes […]
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Time：2019-8-21
Preface I use Camera to implement custom cameras. If you use Camera 2, this article will not apply to you. In order to reduce the space, this paper mainly explains how to realize manual focusing, on the premise that you can realize the basic functions of customized camera preview. Catalog Analysis of Manual Focusing Method […]
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Time：2019-8-20
Preface When using input boxes, products often have some requirements, such as 123456789 becoming 123-456-789 or restricting the input of some characters, etc. Most of the time, online search is done, but it is a waste of time to search every time, and some do not meet the needs. So write one by yourself, and […]
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Time：2019-8-19
basic function Just got the demand, a very simple function, without saying anything, soon came out: Perfect! Go online smoothly! A few days later, the leader came over with his mobile phone and said, “It’s hard to see all these numbers together. Like other Apps, add a blank space!” So there’s this demo. Expanding Functions […]
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Time：2019-8-18
Application ID and package name differences Every Android application has a unique application ID. In Android devices and the market, this ID is the only identity of your application. If you want to update an application in the market, the ID of the new application must be the same as that of the original apk […]
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Time：2019-8-17
Preface Looking at the company’s Flutter project recently, I found it very difficult to analyze data, either data missing or data anomaly. As a mature enterprise, this is very dangerous. Lack of data is like a ship without direction when sailing at sea, it will become confused, so this week spent a little time. Time […]
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Time：2019-8-16
01. Problems encountered in the actual development and preservation of pictures Business requirements In the Nine-palace material of the material list page, the picture loaded by the network request is displayed. If the user clicks the save button, save several pictures to the local area. Specifically, use glide to load images, and then set listener […]
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Time：2019-8-15
Preface After using flutter for a while, I like flutter more and more. Flutter is stronger than we thought. This article describes how to use flutter to show a beautiful list, first look at the effect map. The style is still very beautiful. Next, we will complete this project step by step. Pre-development preparation We […]
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Time：2019-8-14
Preface In this paper, the realization principle of pull-down damping effect will be explained by code. The inspiration comes from this blog, but the code of this blog is not satisfactory, or bad, but thank the author for his inspiration. Most Android Apps now have a drop-down refresh feature, such as the widget entry at […]
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Time：2019-8-13
This article uses Alarm Manager to implement Android’s timed background looping tasks. Use scenario: The project requires app to request an interface from the server every once in a while to update locally saved information. Introduction to Alarm Manager Alarm Manager is a system-level prompting service commonly used in Android that broadcasts a specified Intent […]
