1.Flutter AppBar 自定义顶部按钮图标、颜色
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.red,
leading: IconButton(
icon: Icon(Icons.menu), tooltip: "Search", onPressed: () {
print('menu Pressed');
}
), title: Text('FlutterDemo'), actions: <Widget>[
IconButton(
icon: Icon(Icons.search), tooltip: "Search", onPressed: () {
print('Search Pressed');
}
), IconButton(
icon: Icon(Icons.more_horiz), tooltip: "more_horiz", onPressed: () {
print