iOS

1.加入依赖

flutter_inappbrowser: 1.2.1

2.修改Run工程的podfile，修改完后执行pod install

target 'Runner' do
    use_frameworks!  # required by simple_permission 
    ...
end

post_install do |installer|
    installer.pods_project.targets.each do |target|
        target.build_configurations.each do |config|
            config.build_settings['SWIFT_VERSION'] = '4.0'  # required by simple_permission
            config.build_settings['ENABLE_BITCODE'] = 'NO'
    end
  end
end

3.修改info.plist文件

<key>io.flutter.embedded_views_preview</key>
<true/>
<key>NSAppTransportSecurity</key>
<dict>
	<key>NSAllowsArbitraryLoads</key>
	<true/>
</dict>

4.修改TRAGETS

安卓

找到文件AndroidManifest.xml

路径

android-app-src-main-AndroidManifest.xml

在android:name="io.flutter.app.FlutterApplication"添加键值对

android:usesCleartextTraffic="true"

iOS

安卓