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Android Expert Notes - Crash Optimization (2)

1. Crash information: whether the crashed process is foreground process or background process, whether the crash occurred in the UI thread. 2. System information 3. Memory information 4. Resource information The maximum number of file handles that can be opened by a single process is 1024. The current thread size can be determined by the above...

Android: Several common interface switching effects

An Activity switch animation is an animation that jumps from one Activity to another. After version 2.0 of Android, there is a function to help us implement this animation. This function is overridePendingTransition the code above is only part of the splash screen. It's not as good as the last one, but it's...

APP memory is abnormal. How to solve the problem effectively

In Android, the.java files we write are eventually compiled into.class files, which are loaded by the class loader, and form a meta-information object in the JVM that describes the class structure. This meta-information object lets you know the class's structural information (constructors, properties, methods), and so on. The NUMBER of classes that the JVM describes...

Front-end Performance Optimization - Use of Performance walkthrough

Performance is a Performance monitoring tool provided by Chrome. According to my usage, the simple understanding is that we can record browser activity for a period of time through it, and analyze whether there is room for improvement through the data of the activity. To capture activity data for a page, the first step is to record browser activity. Open F12 and enter Perfomance TAB...

Front-end Performance {Performance}

FP & FCP difference: THE key word of FP is "visual change", as long as there is a visual change, the page will trigger FP; The key word of FCP is "DOM content", such as the drawing of text, pictures, SVG, Canvas and other elements. The FMP algorithm may be inaccurate in the presentation of actual page content, such as font rendering. The core is JS...

MySQL > select * from *

Applications are slow for a variety of reasons, whether it's the network, the system architecture, or the database. So how to improve the database SQL statement execution speed? Some might say that performance tuning is a matter for database administrators (DBAs), but performance tuning is a matter for programs

IOS development - Summary of APP Performance detection schemes

1. CPU Usage As the central processing unit (CPU) of a mobile phone, the CPU is the most critical component of a mobile phone. All applications need it to schedule and run, and resources are limited. Therefore, when the CPU continues to run at a high load due to improper design of our APP, the APP will be stuck, the phone will get hot, and the power consumption will be too fast, which will seriously affect the user experience. Therefore, we apply the application in C...

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