v4.2.88

主要修改内容：
（1）Android 平台问题修复

• 修复 Android 5 和 Android 6 系统 onAnimationEnd 无法接收回调问题；
• 修复 Android 平台频繁调用 play 方法渲染异常问题
• 修复 SDK 混淆问题
• 修复部分场景 java.util.ConcurrentModificationException crash
• 完善 PAGImageView 及 PAGView，修复部分场景渲染异常问题
• 修复 CallObjectMethod crash
• 增加导出 C++ 层 pag 相关符号，修复 C++ API 无法使用问题

（2）iOS 平台问题修复

• 修复进入后台 PAGImageView 某些情况下画面不显示的问题

（3）微信小程序

• 增加对没有Unicode属性转义环境的支持

Main revisions:
（1）The fixes of Android platform issues

• Fix the issue of onAnimationEnd not being able to receive callbacks in Android 5 and Android 6 systems;
• Fix the abnormal rendering issue of frequently calling the play method on the Android platform
• Fix SDK obfuscation issue
• Fix java.util.ConcurrentModificationException crash in some scenarios
• Improve PAGImageView and PAGView, fix abnormal rendering issue of some scenarios
• Fix CallObjectMethod crash
• Add the export of C++ layer PAG related symbols, and fix the problem that the C++ API cannot be used

（2）The fixes of iOS platform issues

• Fix the problem that the screen does not display in some cases when entering the background PAGImageView

（3）WeChat mini program

• Add support for escaping environments without Unicode properties