Flutter Excption

1、Android Keydown dispatch

https://stackoverflow.com/questions/58263620/how-to-use-key-press-event-on-textfromfield-in-flutter

问题: 无法从移动扫描仪设备获取Enter键事件

方案：

RawKeyboardListener(
    focusNode: _focusNode1,
    onKey: (event) {
        if (event.runtimeType == RawKeyDownEvent) {
            ToastUtils.toast(this._textEditingController1.text);
        }
    },
    child: TextFormField(
        controller: _textEditingController1,
        onFieldSubmitted: (_textController) {
        },
    ),
)

2、Could not build the application for the simulator.

问题：

Building for iOS Simulator, but the linked and embedded framework 'App.framework'was built for iOS. (in target 'Runner' from project 'Runner')

方案

rm -rf ios/Flutter/App.framework

3、Automatically assigning platform iOS with version 8.0 on target Runner``

方案

Podfile中
platform :ios, '8.0'

3、Suggestion: add 'tools:replace="android:authorities"'

方案
https://github.com/fluttercom...

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.zorvee.smart_keeper_mobile"
    xmlns:tools="http://schemas.android.com/tools">

<provider
            android:name="vn.hunghd.flutterdownloader.DownloadedFileProvider"
            android:authorities="${applicationId}.flutter_downloader.provider"
            tools:replace="android:authorities"
            android:exported="false"
            android:grantUriPermissions="true">
            <meta-data
                android:name="android.support.FILE_PROVIDER_PATHS"
                android:resource="@xml/provider_paths"
                tools:replace="android:resource"/>
        </provider>

`

4、/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby`

也面临这个问题。通过将绒毛和可可豆荚更新到最新版本然后进行修复

flutter clean
rm -Rf ios/Pods
rm -Rf ios/.symlinks
rm -Rf ios/Flutter/Flutter.framework
rm -Rf ios/Flutter/Flutter.podspec