javascript/NativeScript
1
0
Fork 0
mirror of https://github.com/NativeScript/NativeScript.git synced 2025-08-16 03:31:45 +08:00
Code Issues Packages Projects Releases Wiki Activity

Added documentation for selectedIndexChanged event.

Browse Source
This commit is contained in:
Nedyalko Nikolov
2016-07-22 16:13:43 +03:00
parent a4743713d7
commit c991cd7ed0
2 changed files with 16 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
tests/app/ui/tab-view/tab-view-tests.ts
View File

@ -231,10 +231,12 @@ export class TabViewTest extends testModule.UITest<tabViewModule.TabView> {
return tabView.selectedIndex === expectedOldIndex;
}, helper.ASYNC);
// >> article-tabview-selectedIndexChanged
tabView.on(tabViewModule.TabView.selectedIndexChangedEvent, (args: tabViewModule.SelectedIndexChangedEventData) => {
actualOldIndex = args.oldIndex;
actualNewIndex = args.newIndex;
});
// << article-tabview-selectedIndexChanged
tabViewTestsNative.selectNativeTab(tabView, expectedNewIndex);
TKUnit.waitUntilReady(function () {

14
tests/app/ui/tab-view/tab-view.md
View File

@ -33,3 +33,17 @@ Using a TabView requires the "ui/tab-view" module.
{%snippet article-select-tab%}
## Creating a TabView
{%snippet article-create-tabview%}
### Using selectedIndexChanged changed event
{%snippet article-tabview-selectedIndexChanged%}
### Using selectedIndexChanged event from xml
```XML
<Page>
<TabView selectedIndexChanged="onSelectedIndexChanged">
...
</TabView>
</Page>
```
```TypeScript
export function onSelectedIndexChanged(args) {...}
```
> Note: Initially selectedIndexChanged event will be raised just after adding a new items to TabView without any user interaction, which will happen on TabView loaded. SelectedIndexChanged event will be raised because value of the selectedIndex property is changed from undefined (default) (with no items) to 0 (first tab item). Depends on how TabView.items are set or added it may happen to raise one or two times selectedIndexChanged event even before page events (loaded, navigatingTo, navigatedTo, ...).