![](/img/trans.png)
[英]I want to change the icon color of one layer in leaflet, I have two point ,layers all appearing as blue default icons
[英]How do I change one icon into two different icons in flutter?
如何在flutter中將一個圖標更改為兩個不同的圖標? 這是我到目前為止。
Widget build(BuildContext context) {
final WebPage currentPage = webPages[currentPageIndex];
return Scaffold(
body: SafeArea(
child: WebView(
initialUrl: currentPage.url,
javaScriptMode: JavaScriptMode.unrestricted,
onWebViewCreated: _controller.complete,
),
),
bottomNavigationBar: BottomNavigationBar(
onTap: onTapNavigation,
currentIndex: currentPageIndex,
items: webPages
.map((webPage) => BottomNavigationBarItem(
icon: Icon(Icons.school), title: Text(webPage.title)))
.toList()),
);
}
這是我曾經如何根據布爾值實現切換圖標
bool _newNotification = false;
Tab(
icon: _newNotification
? Icon(
Icons.directions_boat,
size: 28,
color: Colors.white,
),
: Icon(
Icons.notifications,
size: 28,
color: Colors.white,
),
),
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