Programmer Group

Reorg is mainly to rearrange the data to save unnecessary space use, at the same time, it can reduce the number of write buffers and improve performance. Reducing space occupancy can be achieved by reducing the high water level in surface space. In order to analyze various reorg cases, an experimental test was carried out in particular. 1. ...

Android Baidu Map (1): Detailed introduction of sdk-type method parameters and positioning principle for Baidu Map positioningAndroid Baidu Map (2): Baidu Location and Map Display Location Points Source address https://github.com/zhuhao Happig/BaiduMapApi The last article describes how to display location points on a map. This article mainly de ...

Android Baidu Map (1): Detailed introduction of sdk-type method parameters and positioning principle for Baidu Map positioningAndroid Baidu Map (3): Baidu Map Track and Layer Click Event Processing Source address https://github.com/zhuhao Happig/BaiduMapApi Introduction of Centennial Map and Location sdk In the last article, the parameters and ...

// Contact person: Shihu QQ: 1224614774 nickname: buzzing Links to the original text: http://www.jianshu.com/p/66f8410c6bbc Array traversal, this topic seems to have nothing to explore, how to traverse on how to traverse! But if you want to answer these questions: What are the most efficient ways to traverse OC arrays? Why? Wha ...

In my work, I used the H5 interface to call the activity of native s, and I thought of two ways. The first way is through scheme, and the second way is through intercepting the url of webview and redirecting it. Here's how to do this. I hope I can help the students I need. The first way uses Scheme to invoke a native activity Using Scheme, y ...

Official documents: https://developer.android.com/training/sync-adapters/index.html 1. Introduction Facebook can regularly update your friends with the latest information and integrate updates and mood phrases into your contacts. Purpose 2 Purpose 3 2. Synchronization Framework Structure 3. Account Management AuthenticationService ...

I. Brief Introduction Many times we need to use some validation methods. Sometimes when we need to use regular expressions to validate data, we often need to go to the Internet for a long time, and the results are not quite what we want. So I share my checking help class, share it here, leave a bottom for myself, and also give you a reference f ...

Thread pool mainly solves two problems: on the one hand, thread pool can provide better performance when a large number of asynchronous tasks are executed, because using thread pool can reduce the call overhead of each task (because thread pool is reusable). On the other hand, thread pools provide a means of resource limitation and management, ...

Circular Display Pictures (Picture-in-Picture Effect) CANVAS 2.0 Edition Previously designed version has some problems in testing. PC-side testing is not a problem, but when accessed on mobile phones, flash screen appears when the screen is cut (the original big picture does not appear, the previous small picture suddenly becomes bigger, flash ...

When writing a registration, I want to use the mobile phone number to verify, to ensure the user's safe operation, because the previous use of email verification is too troublesome. So we found a better third party on the Internet to provide short message service. Try it, the speed is good, basically three seconds or so can receive short ...