1. Waiting for another flutter command to release the startup lock...
// 杀死dart进程
flutter packages pub build_runner watch
// 终极方案,删除flutter SDK文件夹目录下的bin/cache下边的lockfile文件
rm ./flutter/bin/cache/lockfile
// 删除flutter SDK文件夹目录下的.pub-cache下边的git文件夹
rm ./flutter/.pub-cache/git
3.点击任意空白处，软键盘收起
GestureDetector(
/// 透明也响应处理
behavior: HitTestBehavior.translucent,
onTap: () {
/// 触摸收起键盘
FocusScope.of(context).requestFocus(FocusNode());
},
child: Container(
/// xxx
),
);
4. Oops; flutter has exited unexpectedly. Sending crash report to Google.
/// 在终端执行命令
xcode-select --install
5. 页面返回隐藏虚拟导航条
@override
void deactivate() {
SystemChrome.restoreSystemUIOverlays();
super.deactivate();
}
6. 如果没有网络连接，如何启动静态html页面而不是URL ?【webview】
Future check() async {
try {
final result = await InternetAddress.lookup('google.com');
if (result.isNotEmpty && result[0].rawAddress.isNotEmpty) {
connectionStatus = true;
print("connected $connectionStatus");
}
} on SocketException catch (_) {
connectionStatus = false;
print("not connected $connectionStatus");
}
}
FutureBuilder(
future: check(),
builder: (BuildContext context, AsyncSnapshot<dynamic> snapshot) {
if (connectionStatus == true) {
/// 如果网络正常连接
return SafeArea(
child: WebviewScaffold(
url: "http://www.baidu.com",
),
),
} else {
/// 如果网络连接失败
return SafeArea(
child: WebviewScaffold(
url: Uri.dataFromString('<html><body>hello world</body></html>',
mimeType: 'text/html').toString()
),
),
}
}
)
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