First

两年前写的一个古诗软件里面的选择器，闲着没什么事，就给传上去玩玩。

Controller类里面没什么东西，就是根据view选择的内容，加载不同的数据，然后就是改变需要显示列表的View的frame的变化。 _headView=[[SXSearchHeadView alloc]initWithFrame:CGRectMake(0, 0,ScreenWidth, 40*almightyHeight) andDataSource:Arr]; __weak SXMainViewController *vc=self;

//接受点击button时的下标
_headView.titleBlock=^(NSInteger index){
    [vc showOrHiddenWhenTheValueChanged:index];
};

//接收点击cell时的消息
//当headView的cell被点击时，收回tableView
__weak SXSearchHeadView *view=_headView;

_headView.selectBlock=^(NSString *str){
    [UIView animateWithDuration:.6 animations:^{
        float height=40*almightyHeight;
        
        CGRect rect=view.frame;
        
        rect.size.height=height;
        
        view.frame=rect;
        
    }];
    
    [vc showInfoWithDynasty:view.dynastyButton.currentTitle andPeomType:view.dataButton.currentTitle andForm:view.formButton.currentTitle];
};

[self.view addSubview:_headView];

}

//选择完成之后调用

(void)showInfoWithDynasty:(NSString *)dynasty andPeomType:(NSString *)type andForm:(NSString *)form{

self.navigationItem.title = [NSString stringWithFormat:@"%@%@的%@",dynasty,type,form];

}

主要的东西还是在view类里面。 //开始选择 -(void)beginToSearch:(UIButton *)sender{

// 因为有的三个字有的两个字，要调整一下内间距，有一个根据字体大小获得文本长度的方法，有兴趣的可以找一下，我比较懒

[self changeFrameOfButton:sender];
_currentTag=sender.tag;

//如果两次点击是同一次button
if (_selectIndex==sender.tag) {
    _selectIndex=0;
    
    //并且这个tableView‘是打开状态的
    if (_isForming||_isDybasting||_isDataing) {
        //封装方法，让其关闭
        [self restorationForButtonImageView];
        
    }else{
        //如果不是开启状态，打开tableView并显示你所点击的button对应的内容
        [self change:sender.tag];
    }
    
}else{
    //如果两次点击的不是同一个button，打开tableView并显示你所点击的button对应的内容
    [self change:sender.tag];
    
}
//最后，将你所点击的button的下标block传给控制器
if (_titleBlock) {
    _titleBlock(self.selectIndex);
}
//点击之后刷新tableView 以刷新button对应的内容
[self.searchTableView reloadData];

// [self.searchTableView selectRowAtIndexPath:[NSIndexPath indexPathForRow:0 inSection:0] animated:NO scrollPosition:UITableViewScrollPositionTop]; }

//如果两次点击的不是同一个Button或者点击的是同一个button‘ 但是两次点击的时候tableView都处于关闭状态的时候------调用此方法。 //有点难讲，这个状态比较少触发，可以打个断点多玩玩 -(void)change:(NSInteger)num{

//既然是要打开，点击的button的下标赋给_selectIndex 以便后面block传给控制器
_selectIndex=num;

//根据点击不同的button，将其设置为选中状态，打开状态开启，图片旋转，其他的都取消掉
if (num==100) {
    
    [UIView animateWithDuration:.25 animations:^{
        
        _dataButton.selected=YES;
        _dynastyButton.selected=NO;
        _formButton.selected=NO;

// 点击到的按钮图片旋转，其他的都返回原样 _dataButton.imageView.transform=CGAffineTransformMakeRotation(M_PI); _dynastyButton.imageView.transform=CGAffineTransformIdentity; _formButton.imageView.transform=CGAffineTransformIdentity;

        //设置button的image
        [_dataButton setImage:[UIImage imageNamed:@"upblack"] forState:(UIControlStateNormal)];
        [_dynastyButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
        [_formButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
        
    }];
    
    _isDataing=YES;
    _isForming=NO;
    _isDybasting=NO;
    
}else if (_currentTag==101){
    
    [UIView animateWithDuration:.25 animations:^{
        _dynastyButton.selected=YES;
        _dataButton.selected=NO;
        _formButton.selected=NO;
        
        _dataButton.imageView.transform=CGAffineTransformIdentity;
        _dynastyButton.imageView.transform=CGAffineTransformMakeRotation(M_PI);
        _formButton.imageView.transform=CGAffineTransformIdentity;
        
        //设置button的image
        [_dataButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
        [_dynastyButton setImage:[UIImage imageNamed:@"upblack"] forState:(UIControlStateNormal)];
        [_formButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
        
    }];
    
    _isDataing=NO;
    _isForming=NO;
    _isDybasting=YES;
    
}else if (_currentTag==102){
    
    [UIView animateWithDuration:.25 animations:^{
        
        _dynastyButton.imageView.transform=CGAffineTransformIdentity;
        _formButton.imageView.transform=CGAffineTransformMakeRotation(M_PI);
        
        _dataButton.imageView.transform=CGAffineTransformIdentity;
        
        _formButton.selected=YES;
        _dynastyButton.selected=NO;
        _dataButton.selected=NO;
    
        //设置button的image
        [_dataButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
        [_dynastyButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
        [_formButton setImage:[UIImage imageNamed:@"upblack"] forState:(UIControlStateNormal)];
        
    }];
    
    _isDataing=NO;
    _isForming=YES;
    _isDybasting=NO;
    
}

}

(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{ //1.根据分区获取该分区对应的数组

if (_currentTag==100) { return self.dataArr.count; }else if (_currentTag==101){ return self.dynastyArr.count; } return self.formArr.count; }
(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

SXShowConditionCell *cell=[tableView dequeueReusableCellWithIdentifier:identify forIndexPath:indexPath];

// 看看是否需要显示后面的选中标记 BOOL isSame = NO;

//根据点击不同的button将不同的数据array中的string置为其标题
NSString *name;


if (_currentTag==100) {

// 在赋值的过程中，因为选择过的内容会显示在顶部的按钮上，如果数组里面的字符和按钮相同，就证明那个是上次选择的对象，加个标记 if ([self.dataArr[indexPath.row] isEqualToString:_dataButton.titleLabel.text]) { isSame = YES; }

    name = self.dataArr[indexPath.row];
}else if (_currentTag==101){
    if ([self.dynastyArr[indexPath.row] isEqualToString:_dynastyButton.titleLabel.text]) {
        isSame = YES;
    }
    name = self.dynastyArr[indexPath.row];
}else if (_currentTag==102){
    
    if ([self.formArr[indexPath.row] isEqualToString:_formButton.titleLabel.text]) {
        isSame = YES;
    }
    name = self.formArr[indexPath.row];
}

cell.backgroundColor = [UIColor clearColor];

// isSame取反的原因可以去cell类里面看一眼 [cell setName:name andIsSelected:!isSame];

return cell;

}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{

//与点击button原理一样
if (_currentTag==100) {
    if ([_dataButton.titleLabel.text isEqualToString:self.dataArr[indexPath.row]]) {
        
    }else{
        
        [_dataButton setTitle:self.dataArr[indexPath.row] forState:UIControlStateNormal];
        
    }
}else if (_currentTag==101){
    
    [_dynastyButton setTitle:self.dynastyArr[indexPath.row] forState:UIControlStateNormal];
[self changeFrameOfButton:_dynastyButton];
    
}else if (_currentTag==102){
    
    [_formButton setTitle:self.formArr[indexPath.row] forState:UIControlStateNormal];
    [self changeFrameOfButton:_formButton];
}

// 选择完毕，恢复状态 [self restorationForButtonImageView];

//每当点击cell 说明类型变换了，告诉控制器，需要重新根据标题更新新数据了。
if (_selectBlock) {
    _selectBlock(@"点击了");
}

[self.searchTableView reloadData];

}

// 当点击了任何一个cell，就说明选择过了，除了按钮的标题要变，其他的都恢复初始状态 -(void)restorationForButtonImageView{

[UIView animateWithDuration:.25 animations:^{
    _dataButton.imageView.transform=CGAffineTransformIdentity;
    _dynastyButton.imageView.transform=CGAffineTransformIdentity;
    _formButton.imageView.transform=CGAffineTransformIdentity;
    
    _isDataing=NO;
    _isForming=NO;
    _isDybasting=NO;
    
    _dataButton.selected=NO;
    _dynastyButton.selected=NO;
    _formButton.selected=NO;
    
    [_dataButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
    [_dynastyButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
    [_formButton setImage:[UIImage imageNamed:@"upwhite"] forState:(UIControlStateNormal)];
    
}];

}

ZhangZiyao/First

First