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MakeViewUp 扩展：美化和自定义 Android 视图，可实现组件任意角度旋转 - A...
...de]来源：https://community.appinventor.mi ... droid-views/27185/1[/hide]插件不错谢谢分享铣削
CustomWebView拓展：WebViewer的扩展版本，具有更高的自定义性和灵活性 - A...
.../将您的应用添加到浏览器列表中
使用内置 DownloadHelper 插件下载文件
滚动更改事件和函数以滚动到特定位置
动态创建和删除 WebView
广告拦截器
全屏视频功能（OnShowCustomView 和 OnHideCustomView）
暂停和恢复 WebView
获取内部历史...
Image fingerprint to compare similarity of many images
...produce a normative mapping of the image data - store this with each image and then compare just the fingerprints. This is a complex algorithm and not for the faint of heart.
a few simple solutions are possible:
Create a luminosity histogram for the image as a fingerprint
Create scaled down versi...
App Inventor 2 拓展参考文档 · App Inventor 2 中文网
...定时任务组件）
【通知】Notifier 通知扩展：功能强大的Android通知管理工具
【媒体通知】MediaNotification 媒体通知扩展：管理媒体播放器通知，支持播放控制（常用功能已内置为本地通知组件的媒体通知）
【唤醒】KeepAwake 保...
数据存储组件 · App Inventor 2 中文网
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加密签名
不可见组件：常用的摘要（MD5、SHA1、SHA256）、HMAC-SHA256 签名、AES 加解密、Base64 编解码和随机字符串。
调用各家接口时的参数签名、提交前把密码转成摘要、把敏感数据加密后再保存，都用它。
所...
What is a good Hash Function?
What is a good Hash function? I saw a lot of hash function and applications in my data structures courses in college, but I mostly got that it's pretty hard to make a good hash function. As a rule of thumb to avoid collisions my professor said that:
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PHP random string generator
I'm trying to create a randomized string in PHP, and I get absolutely no output with this:
59 Answers
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Encrypt Password in Configuration Files? [closed]
I have a program that reads server information from a configuration file and would like to encrypt the password in that configuration that can be read by my program and decrypted.
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Which UUID version to use?
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Version 1: This generates a unique ID based on a network card MAC address and a timer. These IDs are easy to predict (given one, I might be able to guess another one) and can be traced back to your network card. It's not recommended to create these.
Version 4: These are generated from random (or ps...
UIDevice uniqueIdentifier deprecated - What to do now?
...ght that the UIDevice uniqueIdentifier property is deprecated in iOS 5 and unavailable in iOS 7 and above. No alternative method or property appears to be available or forthcoming.
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