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App Inventor 2 代码调试方式:App调试、问题排查方法 · App Inventor 2 中文网

...不能预览局部变量。如果想知道局部变量的值,只能采用一种标签调试法。 adb 调试:万能利器,调试拓展、查App崩溃 熟悉安卓开发的小伙伴肯定对adb工具不陌生了,它能做很多偏底层的调试,比如查看App...
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蓝牙扫描权限求高手解答 - App应用开发 - 清泛IT社区,为创新赋能!

用BL时发现要获得蓝牙扫描权限,请问哪位高手能帮忙解决该问题,不甚感激!硬件子板块一篇帖子:https://bbs.tsingfun.com/thread-2104-1-1.html
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Android 4.3 Bluetooth Low Energy unstable

... Important implementation hints (Perhaps some of those hints aren't necessary anymore due to Android OS updates.) Some devices like Nexus 4 with Android 4.3 take 45+ seconds to connect using an existing gatt instance. Work around: Always close gatt instances on disconnect a...
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List files with certain extensions with ls and grep

...itch to prevent that directories are recursed. – Carlos Eugenio Thompson Pinzón Oct 5 '13 at 16:50 11 ...
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NSDefaultRunLoopMode vs NSRunLoopCommonModes

...gets halted as soon as I touch iPhone screen. Thankfully, an awesome blog post by Jörn suggests an alternative option, using NSRunLoopCommonModes for connection. ...
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What happens to a detached thread when main() exits?

... running atexit handlers, flushing streams etc. it returns control to the host environment, i.e. the process exits. If a detached thread is still running (and has somehow avoided undefined behaviour by not touching anything outside its own thread) then it just disappears in a puff of smoke as the pr...
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What is the easiest way to get current GMT time in Unix timestamp format?

... Output: 1369550494.884832 For the standard CPython implementation on most platforms this will return a UTC value. share | improve this answer | follow | ...
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Why use 'git rm' to remove a file instead of 'rm'?

...git rm) and deleted many files using it, and now don't want git to track those. Is there a way to revert changes? I want git to tread my rm as removed since I didn't use git rm in the first place. – Chetan Arvind Patil Jan 30 '18 at 17:43 ...
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`Apache` `localhost/~username/` not working

... FYI, if you're trying to use PHP on Yosemite, you'll likely have to uncomment the following line from /etc/apache2/httpd.conf: LoadModule php5_module libexec/apache2/libphp5.so – Joshua Pinter Sep 6 '14 at 1:01 ...
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Replace comma with newline in sed on MacOS?

...s/,/\\\n/g' Note this will not work on all shells, but will work on the most common ones. share | improve this answer | follow | ...