//解决UINavigationBar 的leftBarButtonItem点击范围过大问题
UIImage *backImg = [UIImage imageNamed:@"fanhuibai"];
UIButton *backBtn = [[UIButton alloc] initWithFrame:CGRectMake(0.f, 0.f, backImg.size.width, backImg.size.height)];
[backBtn setImage:backImg forState:UIControlStateNormal];
[backBtn addTarget:self action:@selector(popVC) forControlEvents:UIControlEventTouchUpInside];
UIView *backBtnView = [[UIView alloc] initWithFrame:backBtn.bounds];
backBtnView.bounds = CGRectOffset(backBtnView.bounds, 0, 0);
[backBtnView addSubview:backBtn];
UIBarButtonItem *leftItem = [[UIBarButtonItem alloc] initWithCustomView:backBtnView];
//解决UINavigationController 自定义LeftBarButtonItem左边空隙问题
UIBarButtonItem *spaceItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
spaceItem.width = -10;
self.navigationItem.leftBarButtonItems = @[spaceItem,leftItem];
- (void)popVC
{
[self.navigationController popViewControllerAnimated:YES];
}
