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Appinventor 音效调用播放后没有声音？ - App应用开发 - 清泛IT社区，为创新赋能！
Q: 音效播放没有效果？是什么原因？
A:仔细观察代码，才发现调用播放后，又调用了停止方法，导致的声音不播放问题，去掉即可。
当然如果因为音频文件损坏等原因，也可能无法正常播放，这时可以先去资源区，点击...
AppInventor写二进制文件 - App应用开发 - 清泛IT社区，为创新赋能！
默认情况下，文件组件都是处理文本的，不能直接处理二进制。
使用拓展可以写二进制文件：https://www.fun123.cn/reference/iot/bytearray.html
蓝牙等组件返回的字节列表（list），目前不能直接追加到拓展中，可以采用遍历字节列...
AppInventor2 解析json数据技巧 - App应用开发 - 清泛IT社区，为创新赋能！
{
"code": 0,
"data": [
{
"identifier": "CH4",
"time": 1762406563579,
"value": "6.9",
&qu...
为什么“Screen1.初始化”方法报错？ - App应用开发 - 清泛IT社区，为创新赋能！
Q：为什么“Screen1.初始化”方法报错？
A：可以点击红色叉叉查看报错具体原因。不过这里一看就是方法重复定义导致的。也就是有两个这个方法，去掉一个就行了。
Cannot hide status bar in iOS7
I just upgraded my iPhone 5 iOS 7 to four beta version. Now when I run my app from Xcode 5 on this iPhone, status bar doesn’t hide, even though it should.
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Chrome says “Resource interpreted as script but transferred with MIME type text/plain.”, what gives?
... to configure the server to send a JavaScript response with
Content-Type: application/javascript
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Read environment variables in Node.js
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It's worth mentioning that this does not work in a React application. process.env is sanitized for security reasons. Only variables that begin with REACT_ENV_ are available. See: github.com/facebookincubator/create-react-app/blob/master/…
– Mark Edington
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Install an apk file from command prompt?
...d after compiling all the .jar files to create an .apk file for an Android application without using Eclipse.
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java.lang.ClassNotFoundException: Didn't find class on path: dexpathlist
...ent -> Instant Run -> Uncheck the checkbox for instant run. Run your app once and this apk file work properly..
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Adding a directory to $LOAD_PATH (Ruby)
...keAntins, this is really great but where should I "bootstrap" load_path in application?
– gaussblurinc
Aug 6 '14 at 13:48
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