導航欄使用UIButton自定義返回按鈕的圖片
阿新 • • 發佈：2017-07-28
idl smi uic uiimage clas ini anim literal 使用
- (void)viewDidLoad {
UIButton *backItem = [UIButton buttonWithType:UIButtonTypeCustom];
UIBarButtonItem *back = [[UIBarButtonItem alloc] initWithCustomView:backItem];
backItem.frame = CGRectMake(18, 5, 20, 20);
[backItem setImage:[UIImage imageNamed:@"返回 (6)"] forState:UIControlStateNormal];
[backItem addTarget:self action:@selector(backSection1) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = back;
}
-(void)backSection1{
if (viewcontrollers.count>1) {
if ([viewcontrollers objectAtIndex:viewcontrollers.count-1]==self) { //push方式 [self.navigationController popViewControllerAnimated:YES];導航欄使用UIButton自定義返回按鈕的圖片