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verified publisher icon MicroKibaco

same/mico面试: 说说ViewModel和LiveData原理?ViewModel在Activity旋转的时候还能保存数据,内部是怎么实现的?

Open MicroKibaco opened this issue 5 years ago • 0 comments

Activity在横竖屏切换时悄悄保存了viewModelStore,放到了NonConfigurationInstances实例里面,横竖屏切换时保存了又恢复了回来,相当于ViewModel实例就一直在,也就避免了横竖屏切换时的数据丢失

MicroKibaco avatar Nov 06 '20 14:11 MicroKibaco