大约有 83 项符合查询结果（耗时：0.0063秒） [XML]
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
MaterialDialog 对话框增强扩展 · App Inventor 2 中文网
...
MaterialDialog1.CreateDrawer("navDrawer", VerticalArrangement1, Screen1, 250, 1)
MaterialDialog1.OpenDrawer("navDrawer")
MaterialDialog1.CloseDrawer("navDrawer")
日期/时间选择器
ShowDatePickerDialog 显示日期选择对话框(dialogId)
显...
使用App Inventor扩展实现多点触控：Rotation Detector · App Inventor 2 中文网
...re shown below.
Here’s how to implement the rotationSprite app:
On Screen1, there is a Canvas, Canvas1, which contains an ImageSprite (ArrowSprite) that we want to rotate. Label1 will show the Arrow’s heading in text format. Heading 0 points to right. We also add a RotationDetector (MyRo...
StringUtils 字符串工具扩展：强大的文本处理工具集 · App Inventor 2 中文网
... 使用示例
基本文本处理
当 Screen1.Initialize 时
设置 StringUtils1.Text 为 "Hello World"
当 Button1.Click 时
// 取左边5个字符
设置 Label1.Text 为 调用 StringUtils1.Left(5)
// 结果: "Hello"
// 取右边5个字符
设置 ...
Notifier 通知扩展：功能强大的Android通知管理工具，支持通知通道、意图、...
...示屏上的Screen。Base Activity是应用程序启动时的Screen，即Screen1。
每次通过 Control.open another screen 或 Control.open another screen with start 指令打开新的Screen时，都会创建新的Activity并成为新的Top Activity。如果用户按下Back按钮（因此得名Ba...
App Inventor 2 中的响应式设计 · App Inventor 2 中文网
...Fixed. To change the Screen.Sizing property, on the Designer screen with Screen1 selected in Components, go to Properties on the right-hand side of the App Inventor. You will find a box below “Sizing” that usually defaults to Fixed, located about 2/3 down. This property is set project-wide.
...
传感器组件 · App Inventor 2 中文网
... 假 则是写入模式。
注意： 该组件仅适用于应用程序的 Screen1 主屏幕！！
属性
最新消息
返回最近接收到的标签的内容。
启用读值模式
指定 NFC 硬件是否在读取模式下运行。读取模式 (真) 或 写入模式（假）。
写入...
App Launcher 应用启动器扩展：用于启动其他应用程序的强大工具，支持独立...
... X
-
点击通知时要打开的 Screen 的名称
“Screen1”
示例
下载压缩包包含两个示例应用程序：
UrsAI2AppLauncherTest.aia：用于启动其他应用程序
UrsAI2AppLauncherTestResponder.aia：显示启动和返回值...