用于iPhone的左侧空间leftBarButtonItem

Question

在iPhone 6+中，leftBarButtonItem比其他iPhone更具左偏移（其他iPhone的左侧空间大致相同）。我怎样才能获得这个空间的宽度？或者也许我可以为所有iPhone设置这个空间的宽度？

左 - iphone5， 对 - iphone6 +

Answer 1

此代码可以帮助您解决偏移问题：

UIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom];
[leftButton sizeToFit];
[leftButton addTarget:self action:@selector(onNavLeftLabelBarButtonClicked) forControlEvents:UIControlEventTouchUpInside];

UIView* leftView = [[UIView alloc] initWithFrame:CGRectMake(x, y, 200, 44)];
//use the x and y to play around with the offset, changing it conditionally
//for Iphone 5 and 6+ for example
leftView.bounds = CGRectInset(leftView.frame, x2, y2); //play around with the insets
[leftView addSubview:self.leftButton];

UIBarButtonItem *leftBarButton = [[UIBarButtonItem alloc] initWithCustomView:self.leftView];
self.navigationItem.leftBarButtonItem = leftBarButton;