NS_CLASS_DEPRECATED_IOS(2_0, 8_3, "UIActionSheet is deprecated. Use UIAlertController with a preferredStyle of UIAlertControllerStyleActionSheet instead") __TVOS_PROHIBITED
在iOS8之后UIActionSheet (以及它们各自的 delegate protocols)已经被弃用，用UIAlertController来代替，一下是iOS8之前和之后的2种做法：
double version = [[UIDevice currentDevice].systemVersion doubleValue];//判定系统版本。
if(version>=8.0f){
UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"提示" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
[alertController addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"确定");
}]];
[alertController addAction:[UIAlertAction actionWithTitle:@"取消" style:UIAlertActionStyleDestructive handler:^(UIAlertAction * _Nonnull action) {
NSLog(@"取消");
}]];
[self presentViewController:alertController animated:YES completion:nil];
}else{
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
UIActionSheet *sheetView = [[UIActionSheet alloc] initWithTitle:@"提示" delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:@"确定",@"取消", nil];
#pragma clang diagnostic pop
sheetView.actionSheetStyle = UIActionSheetStyleDefault;
[sheetView showInView:self.view];
}
#pragma mark actionSheet_delegate 点击事件
- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex NS_DEPRECATED_IOS(2_0, 8_3) __TVOS_PROHIBITED{
NSLog(@"%@",@(buttonIndex));
}