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  • 导航栏上的item的位置设置

     /**
         leftItem
         */
        UIButton *leftbtn = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 40, 40)];
        [leftbtn setImage:[UIImage imageNamed:@"public_back_n"] forState:UIControlStateNormal];
        [leftbtn addTarget:self action:@selector(clickBackItem) forControlEvents:UIControlEventTouchUpInside];
        self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:leftbtn];
        UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
        negativeSpacer.width = 40;// 右移  负左移
        self.navigationItem.leftBarButtonItems = @[negativeSpacer,self.navigationItem.leftBarButtonItem];
        
        /**
         rightItem
         */
        UIButton *rightbtn = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 40, 40)];
        [rightbtn setImage:[UIImage imageNamed:@"public_appraise_icon"] forState:UIControlStateNormal];
        [rightbtn addTarget:self action:@selector(clickBackItem1) forControlEvents:UIControlEventTouchUpInside];
        
        
        self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:rightbtn];
        UIBarButtonItem *rightnegativeSpacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil];
        rightnegativeSpacer.width = 40; //左移  负右移
        self.navigationItem.rightBarButtonItems = @[rightnegativeSpacer,self.navigationItem.rightBarButtonItem];
        
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  • 原文地址:https://www.cnblogs.com/liuwenqiang/p/7441729.html
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