版本：
"react": "16.8.6", "react-native": "0.59.8",这个ActivityCompat是属于v4包下的api，但是RN项目却无法调用，使用多种办法依然无法解决，包括在对应项目的gradle添加依赖
implementation 'com.android.support:support-v4:28.0.0'依赖无效，不知道怎么回事~~最终把jar包下载过来，添加lib的依赖才解决了问题
androidstudio添加依赖后会在这个目录缓存对应资源文件
C:\Users\xxx\.gradle\caches\transforms-1\files-1.1\support-compat-28.0.0.aar\b45efbe48115f5396321f36453b90e70只需要在上图所示的jars目录里面把jar包添加至libs目录下，然后添加依赖即可
虽然api能调用了，但是会产生新的错误
> Android resource linking failed error: resource style/Theme.AppCompat.Light.NoActionBar (aka com.companyloans:style/Theme.AppCompat.Light.NoActionBar) not found. error: resource style/Theme.AppCompat.Light.Dialog (aka com.companyloans:style/Theme.AppCompat.Light.Dialog) not found. error: resource style/TextAppearance.Compat.Notification.Info (aka com.companyloans:style/TextAppearance.Compat.Notification.Info) not found. error: resource style/TextAppearance.Compat.Notification (aka com.companyloans:style/TextAppearance.Compat.Notification) not found. error: resource style/TextAppearance.Compat.Notification.Time (aka com.companyloans:style/TextAppearance.Compat.Notification.Time) not found. error: resource style/TextAppearance.Compat.Notification.Title (aka com.companyloans:style/TextAppearance.Compat.Notification.Title) not found. C:\Users\PJ-3\.gradle\caches\transforms-1\files-1.1\coordinatorlayout-28.0.0.aar\8a4a6226525cb71f1d4262e87ff047b3\res\values\values.xml: AAPT: error: style attribute 'attr/windowActionBar (aka com.companyloans:attr/windowAct ionBar)' not found. error: failed linking references.就是找不到资源,添加如下依赖解决这个错误
implementation 'androidx.appcompat:appcompat:1.0.0-alpha1'
