以前導(dǎo)航的做按鈕或者右按鈕一直沒注意一些細節(jié)問題，比如下圖：

pic1.png

但是新出的圖是這樣的：

pic2.png

右邊完全是沒空隙的，緊貼著，而且圖片變大，點擊的也變大
因此，查了一下網(wǎng)上的方法，在此記錄一下：

左邊的方法為：

    UIButton *backButton =[UIButton  buttonWithType:UIButtonTypeCustom];
    [backButton setBackgroundImage:[UIImage imageNamed:imageNamed] forState:UIControlStateNormal];
    backButton.frame=CGRectMake(0, 0, 44, 44);
    [backButton addTarget:self action:@selector(leftAction) forControlEvents:(UIControlEventTouchUpInside)];
    UIBarButtonItem*item=[[UIBarButtonItem alloc]initWithCustomView:backButton];
    UIBarButtonItem *navSpace = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
    navSpace.width = - 15;
    self.navigationItem.leftBarButtonItems = [NSArray arrayWithObjects:navSpace,item, nil];

右邊的方法為：

    UIButton *addsearchForTalentButton =[UIButton  buttonWithType:UIButtonTypeCustom];
    [addsearchForTalentButton setBackgroundImage:[UIImage imageNamed:@"search_talents_icon_search"] forState:UIControlStateNormal];
    addsearchForTalentButton.frame=CGRectMake(0, 0, 44, 44);
    [addsearchForTalentButton addTarget:self action:@selector(addsearchForTalentButtonClick) forControlEvents:(UIControlEventTouchUpInside)];   
    UIBarButtonItem*item=[[UIBarButtonItem alloc]initWithCustomView:addsearchForTalentButton];
    UIBarButtonItem *navSpace = [[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
    navSpace.width = - 15;
    self.navigationItem.rightBarButtonItems = [NSArray arrayWithObjects:navSpace,item, nil];

最后實現(xiàn)的結(jié)果如圖所示：

pic3.png