ios 修改导航条返回按钮

ios 修改导航条返回按钮

方式一：使用系统的；可以更改系统的文字；以及通过设置导航条的颜色来达到预期的效果

    UIBarButtonItem *backBtns = [[UIBarButtonItem alloc]initWithTitle:@"返回" style:UIBarButtonItemStylePlain target:nil action:nil];
    self.navigationItem.backBarButtonItem = backBtns;
    [self.navigationController.navigationBar setTintColor:[UIColor whiteColor]];

方式二：

通过UIBarButtonItem的创建一个custom, 通过创建一个uibutton来处理！

上述效果可以用一个UIButton 里面，同时设置一照片和文字来处理

    //topNav
    UIBarButtonItem *callItems = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"indexCALL"] style:UIBarButtonItemStylePlain target:self action:@selector(tapCallBtnAction)];
    callItems.tintColor = [UIColor whiteColor];
    self.navigationItem.rightBarButtonItem = callItems;
    
    
    locBtn = [UIButton buttonWithType:UIButtonTypeCustom];
    locBtn.frame = CGRectMake(0, 0, 50, 44);
    [locBtn setTitle:@"返回" forState:UIControlStateNormal];
    locBtn.titleLabel.textAlignment = NSTextAlignmentLeft;
    [locBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
    [locBtn addTarget:self action:@selector(tapLocationBtnAction) forControlEvents:UIControlEventTouchUpInside];
    locBtn.titleLabel.font = [UIFont boldSystemFontOfSize:17];
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]initWithCustomView:locBtn];
    [locBtn setImage:[UIImage imageNamed:@"indexArrow"] forState:UIControlStateNormal];
    [locBtn setImageEdgeInsets:UIEdgeInsetsMake(0, 30, 0, 0)];
    [locBtn setTitleEdgeInsets:UIEdgeInsetsMake(0, -40, 0, 0)];