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AppInventor2 vs Android Studio - App应用开发 - 清泛IT社区，为创新赋能！
有同学问：
如果用 AppInventor2 设计好了 回头出现问题用这个软件解决不了 是不是能用 Android Studio来重新编译呢？
不能，不同的源码体系。但是android studio工具可以调查部分app的通用问题，最终的apk他们是一致的，只是源码形...
无法打包成apk - App应用开发 - 清泛IT社区，为创新赋能！
...报错信息截图看一下
这个是图片
我也有时会出现同样的问题这个问题已经解决了，通过将部分功能移出，删减单页面代码数量，已经能够完成编译，并运行。核心原因：源码中逻辑问题，代码块超限导致yail保存不了。中文网...
BLE connection error “Connection status was set to OS code 133” - 创...
https://stackoverflow.com/questi ... droid-bluetooth-ble
问题原来是设备试图发送大于 MTU 大小的数据包，Android 默认为 23，至少在我测试的特定设备上是这样。
请求更大的 MTU 大小确实解决了问题。
但是，如果错误代码可以明确指出...
App Inventor 2 经典蓝牙(SPP) 硬件接入：hc05 · App Inventor 2 中文网
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HC05 简单介绍
基本接入代码参考
乱码问题排查思路
参与讨论
« 返回首页 Iot 专题
经典蓝牙硬件有很多款，但是hc05尤为常见，这里以hc05为例，介绍一下经典蓝牙模块如何接入AppInventor。
HC05 简...
Can the jQuery UI Datepicker be made to disable Saturdays and Sundays (and holidays)?
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There is the beforeShowDay option, which takes a function to be called for each date, returning true if the date is allowed or false if it is not. From the docs:
beforeShowDay
The function takes a date as a parameter and must return an array with [0] equal to true/false indicating wh...
Is there a PHP function that can escape regex patterns before they are applied?
...our regex, commonly a forward slash (/) - will not be escaped. You will usually want to pass whatever delimiter you are using with your regex as the $delimiter argument.
Example - using preg_match to find occurrences of a given URL surrounded by whitespace:
$url = 'http://stackoverflow.com/questio...
ie8 var w= window.open() - “Message: Invalid argument.”
...n you look at the official documentation page, you see that Microsoft only allows the following arguments, If using that argument at all:
_blank
_media
_parent
_search
_self
_top
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C# 能否获取一个对象所占内存的大小？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...所占内存的大小？今日，在项目重构的时候忽然想到一个问题，一个类哪些成员的增加，会影响一个类所占内存的大小？C#有没有办法知道一个对象占多少内存呢？ ...今日，在项目重构的时候忽然想到一个问题，一个类哪些成员...
Preserve Line Breaks From TextArea When Writing To MySQL
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Out of all the answers, this one is least concise
– JacobRossDev
Aug 14 '15 at 21:04
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move_uploaded_file gives “failed to open stream: Permission denied” error
...ke the owner of those folders same as httpd process owner OR make them globally writable (bad practice).
Check apache process owner: $ps aux | grep httpd. The first column will be the owner typically it will be nobody
Change the owner of images and tmp_file_upload to be become nobody or whatever t...