所以我设法以编程方式完成我的解决方案......一些抱怨它不起作用的用户......那么如何使用图像和项目创建 UTToolbar 以便您可以通过色调更改按钮的颜色,它会神奇地改变图像和标题标签 ?我的 UI 编辑器解决方案确实有效...在此代码中可以更清楚地说明问题,您也可以以编程方式进行...
- (void)loadToolbar {
NSMutableArray *items = NSMutableArray.new;
[items add:[UIBarButtonItem createWithItem:UIBarButtonSystemItemFlexibleSpace :nil :nil]];
for (uint pageIndex = 0; pageIndex < _controllers.count; ++pageIndex) {
UIView *itemView = [UIView.alloc initWithFrame:CGRectMake(0, 0, 100, 44)];
itemView.backgroundColor = [UIColor clearColor];
itemView.tintColor = [UIColor orangeColor];
[itemView addSubview:[self createToolbarForItemView:pageIndex]];
[itemView addSubview:[self createButtonForItemView:pageIndex]];
UIBarButtonItem *item = [UIBarButtonItem.alloc initWithCustomView:itemView];
item.style = UIBarButtonItemStylePlain;
[items add:item];
[items add:[UIBarButtonItem createWithItem:UIBarButtonSystemItemFlexibleSpace :nil :nil]];
}
[_toolbar setItems:items];
}
- (UIButton *)createButtonForItemView:(uint)pageIndex {
UIButton *itemButton = [UIButton buttonWithType:UIButtonTypeSystem];
itemButton.frame = CGRectMake(0, 0, 100, 44);
itemButton.titleLabel.font = [UIFont systemFontOfSize:11];
itemButton.contentEdgeInsets = UIEdgeInsetsMake(30, 0, 0, 0);
itemButton.text = [_controllers[pageIndex] tabTitle];
itemButton.touchUp = ^(UIButton *sender) {
for (UIButton *button in _buttons) button.superview.tintColor = UI.toolBarInactiveButtonTextColor;
sender.superview.tintColor = UI.toolBarActiveButtonTextColor;
[self showPage:pageIndex];
};
[_buttons add:itemButton];
return itemButton;
}
- (UIToolbar *)createToolbarForItemView:(uint)pageIndex {
UIToolbar *itemToolbar = [UIToolbar.alloc initWithFrame:CGRectMake(0, 0, 100, 44)];
itemToolbar.tintColor = nil;
itemToolbar.barStyle = _toolbar.barStyle;
itemToolbar.translucent = _toolbar.translucent;
UIBarButtonItem *imageItem = [_controllers[pageIndex] tabImageItem];
imageItem.style = UIBarButtonItemStylePlain;
imageItem.tintColor = nil;
imageItem.imageInsets = UIEdgeInsetsMake(-10, 0, 0, 0);
itemToolbar.items = @[
[UIBarButtonItem createWithItem:UIBarButtonSystemItemFlexibleSpace :nil :nil],
imageItem,
[UIBarButtonItem createWithItem:UIBarButtonSystemItemFlexibleSpace :nil :nil]
];
return itemToolbar;
}