Question

ios7关于自定义导航条UIBarButtonItem偏移的问题

ios7里导航条按钮会往左或右偏移几个像素，参考这篇文章 使用该方法- (UIEdgeInsets)alignmentRectInsets { UIEdgeInsets insets = UIEdgeInsetsMake(0, 0, 0,0); if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7")) { if (self.isLeft) { insets = UIEdgeInsetsMake(0, 5.0f, 0, 0); } else { // IF_ITS_A_RIGHT_BUTTON insets = UIEdgeInsetsMake(0, 0, 0, 5.0f); } } return insets;}- (UIEdgeInsets)alignmentRectInsets { UIEdgeInsets insets = UIEdgeInsetsMake(0, 0, 0,0); if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7")) { if (self.isLeft) { insets = UIEdgeInsetsMake(0, 5.0f, 0, 0); } else{ // IF_ITS_A_RIGHT_BUTTON insets = UIEdgeInsetsMake(0, 0, 0, 5.0f); } } return insets;}可以调整到正确的位置，但是切换页面的时候没办法直接切换，会有先显示旧的位置然后才会显示调整后的位置的动作，各位有何办法解决吗？

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Answer 1

你应该设置imageEdgeInsets self.view.backgroundColor = [UIColor blueColor]; UIButton* btn = [BarItemButton buttonWithType:UIButtonTypeCustom]; btn.frame = CGRectMake(0, 0, 45, 40); [btn setImage:[UIImage imageNamed:@"come_back.png"] forState:UIControlStateNormal]; btn.imageEdgeInsets = UIEdgeInsetsMake(0, -13, 0, 0); [btn addTarget:self action:@selector(handleBack:) forControlEvents:UIControlEventTouchUpInside]; self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:btn];如果你实现了alignmentRectInsets也不是不行，但是问题在于你pushViewController时候启动了动画，而alignmentRectInsets也会有动画效果 查看原帖>>

采纳哦