1.让所有的输入框失去第一响应者（失去焦点）

 FocusScope.of(context).requestFocus(FocusNode());

2.release包无法请求网络

android\app\src\profile\AndroidManifest.xml 文件中

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.mahaomeng.duodian">
    <!-- Flutter needs it to communicate with the running application
         to allow setting breakpoints, to provide hot reload, etc.
    -->
    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
</manifest>

android/src/main/AndroidManifest.xml 文件中

·
·
·
    </application>

    <uses-permission android:name="android.permission.READ_PHONE_STATE" />
    <uses-permission android:name="android.permission.INTERNET" />
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE" />
</manifest>

3.富文本

       RichText(
          textAlign: TextAlign.center,
          text: TextSpan(
//            text: '登陆即同意',
//            style: TextStyle(fontSize: 14, color: Colors.black),
            children: [
              TextSpan(
                text: '《协议1》',
                style: TextStyle(fontSize: 20, color: Colors.black),
              ),
              TextSpan(
                text: ' 以及 ',
                style: TextStyle(fontSize: 40, color: Colors.orangeAccent),
              ),
              TextSpan(
                text: '《协议2》',
                style: TextStyle(fontSize: 20, color: Colors.black),
              ),
            ],
          ),
        ),

4.圆角

         ClipRRect(
            borderRadius: BorderRadius.all(Radius.circular(75)),
            child:  MaterialButton(
              minWidth: 150,
              height: 150,
              color: Colors.blue,
              child:  Text(
                  '开始抢',
                  style: TextStyle(
                      fontSize: 20,
                      color: Colors.white
                  )
              ),
              onPressed: () {
                print('点击了开始抢');
              },
            ),
          )

5.页面间传值

// A页面
Navigator.push(context, MaterialPageRoute(builder: (BuildContext context) {
  return SelectListPage(dataList: _storeInfos);
})).then((value){ // 注：直接点击返回按钮也会触发then
  if (value != null) {
    _storeInfo = value;
    setState(() {});
  }
});

// B页面返回A页面
Navigator.pop(context, {value});