• What if the iPhone suddenly goes black and can’t turn on? 3 solutions sharing


    When the iPhone system encounters serious problems, the iPhone screen will turn black and cannot be turned on even by long pressing the power key. never mind. This article will introduce three methods to help you solve the problem of iPhone black screen crash. Possible causes of iPhone black screen crash Hardware damage: one possible […]

  • Apple iPhone white screen crash? How to fix it?


    Does your iPhone or iPad suddenly crash with a white screen? Try the following 5 fixes. Reasons for iPhone white screen crash There are many reasons for the white screen on the iPhone. The most common reasons are as follows: Battery exhausted: if your iPhone runs out of power, it may get stuck on the […]

  • Why can restart solve 90% of the problems


    1. Computer system Windows 10 professional edition2. With the development of the times and the needs of work, most families will buy computers. However, with the passage of time, the computers will gradually become uncomfortable. It is realized that the mouse suddenly does not respond, the keyboard does not respond, the black screen crashes, and […]

  • Solution to crash in wkwebview javascriptbridge xcode9 of IOS development


    preface This article mainly introduces the related solutions to crash in IOS wkwebview JavaScript bridge xcode9, which can be shared for your reference. I won’t say much about it. Let’s take a look at the detailed introduction. The third party of wkwebview JavaScript bridge is quite good, but recently there has been a crash on […]

  • Summary of IOS crash file analysis methods


    Method one: symbolic crash 1. Find symbolic crash Different Xcode versions of symbolicatecrash have different directories find /Applications/Xcode.app -name symbolicatecrash -type f 2. Create a crash folder mkdir crash 3. Copy crash file, symbolic crash and dsym to the same directory 4. Export Designer_ Dir environment variable export DEVELOPER_DIR=”/Applications/XCode.app/Contents/Developer” If this line is not executed, […]

  • C language — circular structure 2 (basic part 6)


    I haven’t written a blog for a long time. Recently, the project has been basically completed, and my daily study needs to be put on the agenda. Although there is no hope in the future, I’d better move forward with my head down… Don’t go into the topic. Dead cycle Soft crash:CPUoccupy100%, dual core50%The machine […]

  • 003_ Linux command summary


    003_ Linux command summary 0th 1th firewall Firewall CMD command firewall-cmd –list-ports firewall-cmd –add-port=9092/tcp –permanent –The permanent parameter must be added man firewall-cmd After opening a port number, you must reload it with reload, otherwise it will not take effect firewall-cmd –reload firewall-cmd –remove-port=9092/tcp Close the port 2th netstat -lnpt Ports 2181 and 9092 are […]

  • The cause and solution of the computer’s breakdown after the computer starts


    Failure cause analysis: If there is no problem with the keyboard, it may be that the computer is poisoned. If there is such a problem, do not rush to re install the system, we can try to use the following method to see if it can be solved. resolvent: 1. If the calculator is opened […]

  • View the instance of how to locate and deal with the crash information of IOS launched apps


    The complete app can only be put on the shelf after many rounds of testing, but no developer can guarantee that there will be no problems. If there is a crash in the launched app, it is particularly important for developers to view the location of crash information and the corresponding processing method. Here are […]

  • IOS 13 once crash location – released nsurl.host


    Every year’s IOS upgrade will bring some adaptation work to developers, and some normal code may crash. This article discusses the problems of memory management of core foundation objects on IOS 13. 1. problem On the IOS 13 beta version, there is a necessary crash in hand Taobao: Thread 0 name: Dispatch queue: com.apple.main-thread Thread […]

  • Keyboard, static library, animation and crash location of IOS Development Notes


    Preface This paper mainly shares the problems encountered in the development and some related thoughts. Let’s share it with friends in need for reference and study. Let’s have a look at the detailed introduction. IOS 11 keyboard problems Functional background: When the keyboard pops up, if there is an input box, the position of the […]

  • Launch crash of IOS monitoring notes


    Preface Compared with the normal crash problem, the loss caused by starting crash is much greater. Normally, if there is a strong enough build release system, most of the time, problems can be found and fixed in time before the version goes online, but there is still a small probability of online accidents. Starting crash […]