//toolbar均分
UIBarButtonItem*item = [[UIBarButtonItem alloc]initWithTitle:@"sssss" style:UIBarButtonItemStylePlain target:self action:@selector(aaaaa)];
UIBarButtonItem*item2 = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:@selector(aaaaa)];
self.navigationController.toolbar.translucent = NO;
self.navigationController.toolbar.tintColor = [UIColor redColor];
// self.toolbarItems = @[item,item2];
[selfsetToolbarItems:@[item2,item,item2]animated:YES];
self.view.backgroundColor = [UIColor yellowColor];
