ios - 如何设置自定义 View 后退按钮

Question

在 View Controller A 中，在 viewDid Load 中我有这个:

UIImage * backButtonImage = [UIImage imageNamed: @"bar-arrow"];
UIBarButtonItem* b = [[UIBarButtonItem alloc] initWithImage:backButtonImage style:UIBarButtonItemStylePlain target:nil action:nil];
self.navigationItem.backBarButtonItem = b;

仍然在下一个 View Controller 的导航中。酒吧我明白了:

换句话说——IOS7原来的后退箭头仍然显示。无法摆脱它!!

Answer 1

通常隐藏 NativationBar 的默认后退按钮:

[self.navigationItem setHidesBackButton:YES animated:YES];   
[self.navigationItem setHidesBackButton:YES];

并执行以下代码:

    UIButton *BackButton =  [UIButton buttonWithType:UIButtonTypeCustom];
    [BackButton setImage:[UIImage imageNamed:@"bar-arrow"] forState:UIControlStateNormal];
    [BackButton addTarget:self action:@selector(prevButtonAction)forControlEvents:UIControlEventTouchUpInside];
    [BackButton setFrame:CGRectMake(0, 0, 12, 20)];// set as par your need


    UIBarButtonItem *barButton = [[UIBarButtonItem alloc] initWithCustomView:BackButton];
    self.navigationItem.leftBarButtonItem = barButton;


-(void)prevButtonAction
{
    [self.navigationController popViewControllerAnimated:YES];
}