摘要：
开启状态保存和恢复将下列两个方法添加到AppDelegate.m文件的application delegate中- (BOOL)application:(UIApplication *)application shouldSaveApplicationState:(NSCoder *)coder{ return YES;}- (BOOL)application:(UIApplication *)application shouldRestoreApplicationState:(NSCoder *)coder{ return YES;}RestorationldentifierUI... 阅读全文
