Fixed the issue that rv.changeBackgroundColor(_ color : UIColor) does not work when new chapter is loaded in PageTransitionNone and PageTransitionSlide.

SkyEpub for iOS Advanced Demo IV in Objective C Released
a. Advanced Demo is totally rewritten in Objective C language.
b. Using storyboard, Code becomes very easy readable now.
c. Importing Epub from local device is added to Advanced Demo.
d. Advanced Demo is 100% based on WKWebView.

SkyEpub for Android Advanced Demo IV is released.

1. Project has been totally modified to use Layout xml and support new User Interface Controls like contstraintLayout or etc.
2. All Codes are written in Kotlin language.
3. Importing Epub from local device is added to Advanced Demo.
4. Advanced Demo is 100% compatible with AndroidX

Resolved the issue the page becomes shifted pixel by pixel to one side after continuous turning over.

Now AndroidX is fully supported.

SkyEpub for Android Advanced Demo IV is released.

1. Project has been totally modified to use Layout xml and support new User Interface Controls like contstraintLayout or etc.
2. A lot of issues are resolved.
3. Importing Epub from local device is added to Advanced Demo.
4. Advanced Demo is 100% compatible with AndroidX

1. skyepub.jar is updated to conform to AndroidX and the latest Android Studio.
2. New SkyEpub Advanced demo for Android is updated to AndroidX.
3. Issue Resolved that page is not displayed properly after Rotation in some devices.

Resolved the issues below
1. App crashes when Fixed Layout book opens in Landscape mode in iOS 14.0 or above. (Curling Effect)
2. App crashes when Fixed Layout book rotates in iOS 14.0 or above. (Curling Effect)
3. Zoom scale does not match to iPad Portrait mode.

New API in Fixed Layout
/** returns the current zoom scale of fixed layout */
-(double)zoomScale;

SkyEpub for iOS Advanced Demo IV in Swift Released
a. Advanced Demo is totally rewritten in Swift language.
b. Using storyboard, Code becomes very easy readable now.
c. Importing Epub from local device is added to Advanced Demo.
d. Advanced Demo is 100% based on WKWebView.

SkyEpub 8.3.0 for iOS which is built based on WKWebView has just been released.
Some of Advanced demo II build settings are changed for Xcode 12 and WKWebView.