ionic3的最近碰见的一些难题

用ionic3用了大概有两年了,之前一直是记录在笔记上面的,现在把他更新到博客上
1.创建platform报错：Current working directory is not a Cordova-based project.有两种情况

没有www文件：ionic build
没有config.xml文件：ionic integrations enable cordova

2.Cannot find module ‘…/cordova/platform_metadata’

如果您已经安装了cordova-plugin-photo-library，则可以仅强制删除cordova-plugin-add-swift-support，然后将其重新添加。这应该可以解决问题。
cordova plugin rm cordova-plugin-add-swift-support --force 
cordova plugin add cordova-plugin-add-swift-support
ionic cordova plugin add cordova-plugin-photo-library --variable PHOTO_LIBRARY_USAGE_DESCRIPTION="To choose photos" --force

3.ENOENT: no such file or directory, open ‘/Users/ben/SGMW/platforms/ios/CordovaLib/CordovaLib.xcodeproj/project.pbxproj’

使用 cordova platform add [email protected] 添加ios平台的时候报错了
解决方案： 将ios平台删除,重新添加5.1.1,cordova platform add 
[email protected],用5.1.1即可

4.Ensure the version of Node.js used at install time matches that used at runtime

npm remove cordova-res
npm install cordova-res

5、关于 net::ERR_CLEARTEXT_NOT_PERMITTED,或者是android请求不了后台;

https://stackoverflow.com/questions/45940861/android-8-cleartext-http-traffic-not-permitted
一个一个试下去 总有一个适合你

6、ionic3中聚焦输入框时，内容被软键盘全部往上顶

config.xml中添加
<preference name="android-windowSoftInputMode" value="adjustPan|stateHidden" />

7、App store :ITMS-90809: Deprecated API Usage - New apps that use UIWebView are no longer accepted. Instead, use WKWebView for improved security and reliability.

cordova-ios版本升级至5.1.1:cordova platform add [email protected]
在config.xml中添加以下代码
<platform name="ios">
    <preference name="WKWebViewOnly" value="true" />
    <feature name="CDVWKWebViewEngine">
        <param name="ios-package" value="CDVWKWebViewEngine" />
    </feature>
    <preference name="CordovaWebViewEngine" value="CDVWKWebViewEngine" />
</platform>

8、cordova-plugin-inAppbrowser 包含 UIWebView

cordova plugin add https://github.com/apache/cordova-plugin-inappbrowser.git