将滑块组件旋转 90º，效果如下： [hide]来源：https://community.appinventor.mi ... o-ranges-free/29465 http://kio4.com/appinventor/294K_extension_crear_Deslizador.htm [/hide] 谢谢谢谢谢谢谢谢分享

具有两个范围的滑块，效果如下： [hide]来源：https://community.appinventor.mi ... o-ranges-free/29465 http://kio4.com/appinventor/294K_extension_crear_Deslizador.htm [/hide]

...滚动，可以使用 TableView 拓展，参考这里：https://community.appinventor.mi ... -and-5-by-ken/26000 或者这个方案：https://community.appinventor.mi ... he-listview/9105/11

https://community.kodular.io/t/f ... ols-extension/78798 https://community.appinventor.mi ... ols-extension/15803 https://community.appinventor.mi ... hin-a-label/65831/9

...ificationStyle.html 结果无论点什么按键都会报错： edu.mit.appinventor.aicompanion3: Targeting S+ (version 31 and above) requires that one of FLAG_IMMUTABLE or FLAG_MUTABLE be specified when creating a PendingIntent. Strongly consider using FLAG_IMMUTABLE, only use FLAG_MUTABLE if so...

http://kio4.com/appinventor/287_extension_gradiente_color.htm - 让我们看一下在布局中制作颜色渐变的扩展。- 我们放置一个布局，然后在该扩展的块中插入该布局的名称，放置一个包含所需颜色的列表，以及一个从 1 到 8 的数字，用于表示...

...x: 9, Size: 1 at java.util.ArrayList.add(ArrayList.java:483) at com.google.appinventor.components.runtime.LineChartBaseDataModel.addEntryFromTuple(LineChartBaseDataModel.java:89) at com.google.appinventor.components.runtime.ChartData2D$1.run(ChartData2D.java:81)at java.util.concurrent.ThreadPoolExe...

... 《App Inventor 2 连接：USB（Ai2 Starter启动手机USB调试）》 AppInventor,AppInventor2,AI伴侣

...t stores data on a test service provided by App Inventor, http://tinywebdb.appinventor.mit.edu/ . This service is helpful for testing, but it is shared by all App Inventor users, and it has a limit of 1000 entries. If you use it, your data will be overwritten eventually. For most apps you write, yo...

... 目前在10gen的努力下，BSON已经有了针对多种语言的编码解码包。并且都是Apache 2 license下开源的。并且还在随着MongoDB进一步地发展。 BSON,JSON,区别