入门
开发指南
- 模块
- 控件基础知识
- 控件树
- 选择器 API
- 布局
- 手势和触摸事件
- W3C APIs 兼容
- Cordova 插件支持
- EcmaScript 6,TypeScript 和 JSX
- Windows 10 支持说明
- 构建 Tabris.js App
- Tabris.js App 补丁
API 参考文档
- app
- device
- fs
- localStorage
- ui
- ActionSheet(操作列表)
- AlertDialog(对话框)
- CanvasContext
- InactivityTimer(闲置定时器)
- NativeObject
- Popup(弹出窗)
- Timer(计时器)
- WidgetCollection
控件
- Action
- ActivityIndicator
- Button
- Canvas
- CheckBox
- CollectionView
- Composite
- Drawer
- ImageView
- NavigationBar
- NavigationView
- Page
- Picker
- ProgressBar
- RadioButton
- ScrollView
- SearchAction
- Slider
- StatusBar
- Switch
- Tab
- TabFolder
- TextInput
- TextView
- ToggleButton
- Video
- WebView
- Widget
自定义控件
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ActivityIndicator
Extends Widget
A widget representing a spinning indicator for indeterminate loading / processing time.
Import this type with “const {ActivityIndicator} = require('tabris');
”
Android | iOS |
---|---|
Properties
tintColor
iOSAndroid
Type: Color
The color of the indicator.
Events
tintColorChanged
Fired when the tintColor property has changed.
Event Parameters
target: this The widget the event was fired on.
value: Color The new value of tintColor.
Example
const {ActivityIndicator, Button, ui} = require('tabris');
// Create the activity indicator centered in the page
let activityIndicator = new ActivityIndicator({
centerX: 0,
centerY: 0
}).appendTo(ui.contentView);
// Create reload button
let reloadButton = new Button({
centerX: 0, centerY: 0,
text: 'Run Task'
}).on('select', () => executeLongRunningTask())
.appendTo(ui.contentView);
function executeLongRunningTask() {
// Toggle visibility of elements
activityIndicator.visible = true;
reloadButton.visible = false;
setTimeout(() => {
// Async action is done
activityIndicator.visible = false;
reloadButton.visible = true;
}, 2500);
}
executeLongRunningTask();
See also
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