Tip1 頁(yè)面跳轉(zhuǎn)的時(shí)候navigator報(bào)錯(cuò)

'package:flutter/src/widgets/navigator.dart': Failed assertion: line 3790 

原因： 不能在build到時(shí)候跳轉(zhuǎn)頁(yè)面，延遲一會(huì)會(huì)
解決：

Future.delayed(Duration.zero, () { Navigator.。。。; });

Tip2 如何擴(kuò)大 Text 點(diǎn)擊區(qū)域大?。?/h3>

在 GestureDetector 里面添加屬性：behavior: HitTestBehavior.opaque，配合Padding組件包裹Text widget 即可：

SizedBox.fromSize(
  size: Size(double.infinity, 44),
  child: Container(
    alignment: Alignment.center,
    child: GestureDetector(
      behavior: HitTestBehavior.opaque,
      child: Padding(
        padding: EdgeInsets.symmetric(
          horizontal: 80,
          vertical: 15,
        ),
        child: Text(
          'Press me!',
          style: TextStyle(
            color: Colors.lightBlue,
            fontWeight: FontWeight.bold,
          ),
        ),
      ),
      onTap: () {
        print('just test it!!!');
      },
    ),
  ),
);