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App Inventor 2 TaifunTM拓展：获取本机手机号码 · App Inventor 2 中文网
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TaifunTM拓展
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TaifunTM拓展
该拓展用于从电话管理器获取一些信息。
最低 API 级别为 18！
所需权限：android.permission.READ_PHONE_STATE 或 android.permission.READ_PHONE_NUMBERS。请...
Why should I avoid multiple inheritance in C++?
...ly, it was done for bad reasons, and it will blow back in the face of the maintainer.
Summary
Consider composition of features, instead of inheritance
Be wary of the Diamond of Dread
Consider inheritance of multiple interfaces instead of objects
Sometimes, Multiple Inheritance is the right thing. I...
How to copy files from 'assets' folder to sdcard?
...ssetManager.list("");
} catch (IOException e) {
Log.e("tag", "Failed to get asset file list.", e);
}
if (files != null) for (String filename : files) {
InputStream in = null;
OutputStream out = null;
try {
in = assetManager.open(filename);
...
YouTube API to fetch all videos on a channel
...p;maxResults=20
After that you will receive a JSON with video ids and details, and you can construct your video URL like this:
http://www.youtube.com/watch?v={video_id_here}
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git command to show all (lightweight) tags creation dates
... fits my needs:
git log --tags --simplify-by-decoration --pretty="format:%ai %d"
I've put that command in an alias in my ~/.alias, so now everytime I run gitshowtagbydate I get what I needed.
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RegEx for matching UK Postcodes
... I can't get this to work in JavaScript. Does it only work with certain regex engines?
– NickG
Mar 27 '14 at 9:57
13
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What do column flags mean in MySQL Workbench?
In MySQL Workbench table editor there are 7 column flags available: PK, NN, UQ, BIN, UN, ZF, AI.
3 Answers
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蓝牙BLE设备使用BLE拓展连不上蓝牙？ - 创客硬件开发 - 清泛IT社区，为创新赋能！
...App 或者 nRF Connect App 进行硬件连接和测试，没问题再使用ai2 ble拓展开发。
如果测试没有问题，ai2 蓝牙连接处代码及具体的报错信息截图提供，具体问题具体分析。
WakeLock 拓展：保持App活动状态，不自动关屏 - App Inventor 2 拓展 - 清...
AI2 WakeLock Extension: Always stay active
来源：https://ullisroboterseite.de/android-AI2-WakeLock-en.html
AppInventor2 vs Android Studio - App应用开发 - 清泛IT社区，为创新赋能！
...决？
安卓开发经验是相通的，安卓工程师能极快上手 ai2。ai2 本地版有个特色，编译信息非常清晰，即使出错绝大部分都能解决，不外乎就是代码块写的有问题。只要按照规范写，一般不会出错，即使查不出来的错误，我们技...