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使用Masonry布局，动态添加按钮数量，实现效果如图所示
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Using Masonry layout. Dynamicly adding buttons.
通过正常的创建视图的方法创建即可YFFilterView *filterView = [[YFFilterView alloc] initWithFrame:frame]
Create by the normal way. YFFilterView *filterView = [[YFFilterView alloc] initWithFrame:frame]
按钮根据传入的titleArray动态创建，在setupUIWithTitleArray方法执行后，视图元素才会被加载。
The button was created with titleArray. The view element was loaded after setupUIWithTitleArray method get called.
根据block中的btn.tag来判断第几个按钮被点击，从而进行相应的逻辑处理。
Get the selected index by btn.tag in the block. Implement the rest logic by yourself.
[filterView setupUIWithTitleArray:@[@"目的地", @"旅行主题", @"旅行天数", @"hhh"].mutableCopy fontAttributes:nil handler:^(UIButton *btn) {
NSLog(@"%ld", btn.tag);
[self changeSelectionView:btn.tag];
}];
由于按钮点击后的视图按需而变，故这里的逻辑留给coder自己处理。
一般地，在选中筛选条件后，按钮标题会变为选中项。itemDidChosenWithTitle:atIndex:方法实现该逻辑，index为按钮的位置。
Generally, after selecting the condition. The title of that button would be changed to the selection item. itemDidChosenWithTitle:atIndex: this method implemented this logic & index was the button's index.
[self.filterView itemDidChosenWithTitle:@"哈哈哈" atIndex:0];
使用视图隐藏的方式切换视图，视图的隐藏在YFFilterView中已封装，使用者只需在block中实现特定视图的显示即可。
Switching the view by hidden property.
- (void)changeSelectionView:(NSUInteger)index {
switch (index) {
case 0: {
if (!self.firstView) {
self.firstView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
self.firstView.backgroundColor = [UIColor redColor];
[self.filterView.bgView addSubview:self.firstView];
}
self.firstView.hidden = NO;
[self.filterView itemDidChosenWithTitle:@"哈哈哈" atIndex:0];
break;
}
case 1:{
if (!self.secondView) {
self.secondView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 200, 300)];
self.secondView.backgroundColor = [UIColor blueColor];
[self.filterView.bgView addSubview:self.secondView];;
}
self.secondView.hidden = NO;
break;
}
case 2: {
if (!self.thirdView) {
self.thirdView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
self.thirdView.backgroundColor = [UIColor yellowColor];
[self.filterView.bgView addSubview:self.thirdView];;
}
self.thirdView.hidden = NO;
break;
}
default:
break;
}
}
- 如果在使用过程中遇到BUG，希望你能Issues我，谢谢（或者尝试下载最新的框架代码看看BUG修复没有）
- Issue me if you find bug
- 如果你想为YFFilterView输出代码，请拼命Pull Requests我
- Pull Requests ME Desperately!
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