新的titleView,添加UIbutton的方法 ios11更加坑intrinsicContentSize,这个方法,就不管了,直接固定大小居中
UIView * container = [[UIView alloc]initWithFrame:CGRectZero];
UIButton * button = [[UIButton alloc]initWithFrame:CGRectZero];
[button addTarget:self action:@selector(backToHOmePage) forControlEvents:UIControlEventTouchUpInside];
[button setImage:[UIImage imageNamed:@"clanak_default.png"] forState:UIControlStateNormal];
[button sizeToFit];
[container addSubview:button];
[button release];
[container sizeToFit];
self.navigationItem.titleView = container;
[container release];
添加两个lable的方法
UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 0, 0)];
titleLabel.backgroundColor = [UIColor clearColor];
titleLabel.textColor = [UIColor whiteColor];
titleLabel.font = [UIFont boldSystemFontOfSize:20];
titleLabel.text = @"Your Title";
[titleLabel sizeToFit];
UILabel *subTitleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 22, 0, 0)];
subTitleLabel.backgroundColor = [UIColor clearColor];
subTitleLabel.textColor = [UIColor whiteColor];
subTitleLabel.font = [UIFont systemFontOfSize:12];
subTitleLabel.text = @"Your subtitle";
[subTitleLabel sizeToFit];
UIView *twoLineTitleView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, MAX(subTitleLabel.frame.size.width, titleLabel.frame.size.width), 30)];
[twoLineTitleView addSubview:titleLabel];
[twoLineTitleView addSubview:subTitleLabel];
float widthDiff = subTitleLabel.frame.size.width - titleLabel.frame.size.width;
if (widthDiff > 0) {
CGRect frame = titleLabel.frame;
frame.origin.x = widthDiff / 2;
titleLabel.frame = CGRectIntegral(frame);
}else{
CGRect frame = subTitleLabel.frame;
frame.origin.x = abs(widthDiff) / 2;
subTitleLabel.frame = CGRectIntegral(frame);
}
self.navigationItem.titleView = twoLineTitleView;