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[操作系统]IOS7、8模态半透明弹出框


//源Controller中跳转方法实现  

 MKDialogController *controller = [[MKDialogController alloc] init];  

 controller.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;  // 跳转时的动画效果

if ([[UIDevice currentDevice].systemVersion floatValue] >= 8.0) {  

    controller.providesPresentationContextTransitionStyle = YES;  

   controller.definesPresentationContext = YES;  

  controller.modalPresentationStyle = UIModalPresentationOverCurrentContext;  

 [self presentViewController:controller animated:YES completion:nil];  

 } else {  

   self.view.window.rootViewController.modalPresentationStyle = UIModalPresentationCurrentContext;  

     [self presentViewController:controller animated:NO completion:nil];  

   self.view.window.rootViewController.modalPresentationStyle = UIModalPresentationFullScreen;  

}