IOS-9-UIBarButtonItem导航条-添加自定义Left或者Right按钮

1.用系统自带的返回按钮

UIBarButtonItem *leftBarButtonItem = [[UIBarButtonItem alloc]

initWithTitle:@"返回"

style:UIBarButtonSystemItemCancel

target:self

action:@selector(doClickBackAction:)];

self.navigationItem.backBarButtonItem =
leftBarButtonItem;

2.自己定义导航条右上方按钮

@property （nonatomic，strong）UIButton *issueButton;

//自定义一个导航条右上角的一个button
UIImage *issueImage = [UIImageimageNamed:@"btnpressed.png"];

self.issueButton = [UIButton
buttonWithType:UIButtonTypeRoundedRect];

self.issueButton.frame =
CGRectMake(0,
0, 54,
30);

[_issueButton
setBackgroundImage:issueImage forState:UIControlStateNormal];

[_issueButton
setTitle:@"发布"
forState:UIControlStateNormal];

_issueButton.titleLabel.font = [UIFont
systemFontOfSize:13];

[_issueButton
addTarget:self
action:@selector(issueBton)
forControlEvents:UIControlEventTouchUpInside];
[issueButtonaddTarget:selfaction:@selector(doClickBackAction:)forControlEvents:UIControlEventTouchUpInside];
//添加到导航条
UIBarButtonItem *leftBarButtomItem = [[UIBarButtonItemalloc]initWithCustomView:issueButton];
self.navigationItem.rightBarButtonItem
= leftBarButtomItem;

感谢大家指出的不妥之处，再次特别感谢！