UIKit 框架之UISearchBar、UITableViewController-阿里云开发者社区

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UIKit 框架之UISearchBar、UITableViewController

简介:

//
//  tableViewController.m
//  tableVC
//
//  Created by City--Online on 15/6/1.
//  Copyright (c) 2015年 CYW. All rights reserved.
//

#import "tableViewController.h"

@interface tableViewController ()<UISearchBarDelegate,UIScrollViewDelegate>
@property(nonatomic,strong) UISearchBar *searchBar;
@property(nonatomic,strong) NSArray *allData;
@property(nonatomic,strong) NSMutableArray *searchData;
@property(nonatomic,assign) NSInteger pageIndex;
@end

@implementation tableViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    _pageIndex=1;
    //初始化数据
    _allData=@[@"abcd11",@"abcd12",@"abcd13",@"abcd14"];
    _searchData=[_allData copy];
    //初始化UISearchBar
    _searchBar=[[UISearchBar alloc]initWithFrame:CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, 44)];
    //样式
    _searchBar.barStyle=UISearchBarStyleDefault;
    //代理
    _searchBar.delegate=self;
    //文本内容
    _searchBar.text=@"abcd";
    //提示文字
    _searchBar.prompt=@"1234";
//    //文本为空时显示内容
//    _searchBar.placeholder=@"qazwsx";
//    //bookmark按钮是否显示
//    _searchBar.showsBookmarkButton=YES;
//    //取消按钮是否显示
//    _searchBar.showsCancelButton=YES;
//    //搜索结果按钮显示
//    _searchBar.showsSearchResultsButton=YES;
//
    //bar的颜色(具有渐变效果)
    _searchBar.tintColor=[UIColor redColor];
    _searchBar.barTintColor=[UIColor whiteColor];
    _searchBar.searchBarStyle=UISearchBarStyleMinimal;
    //是否透明
    _searchBar.translucent=NO;
//   Scope的内容
    _searchBar.scopeButtonTitles=@[@"English",@"China"];
    //默认选择的Scope索引
    _searchBar.selectedScopeButtonIndex=1;
    // 是否显示Scope
    _searchBar.showsScopeBar=YES;
    UIView *v=[[UIView alloc]initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 44)];
    v.backgroundColor=[UIColor yellowColor];
    //设置辅助输入视图
    _searchBar.inputAccessoryView=nil;
    // 键盘样式
    _searchBar.keyboardType=UIKeyboardTypeDefault;
    // 返回按钮样式
    _searchBar.returnKeyType=UIReturnKeyDone;
    self.tableView.tableHeaderView=_searchBar;
    self.tableView.tableFooterView=[[UIView alloc]initWithFrame:CGRectZero];
    
    //还有一些设置背景图片的一些属性方法 详见api
//    self.navigationItem.titleView=searchbar;
    
    
    self.edgesForExtendedLayout = UIRectEdgeNone;
    self.modalPresentationCapturesStatusBarAppearance = NO;
    
    
}
- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    self.refreshControl=[[UIRefreshControl alloc]init];
    self.refreshControl.attributedTitle = [[NSAttributedString alloc] initWithString:@"啦啦啦啦儿童节"];
    [self.refreshControl addTarget:self action:@selector(refresh) forControlEvents:UIControlEventValueChanged];
}


-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
//    [_searchBar resignFirstResponder];
    NSLog(@"%@", self.tableView.tableHeaderView.subviews);
   
}

-(void)refresh
{
    _pageIndex++;
    NSLog(@"1234");
    sleep(4);
    
    [self.refreshControl endRefreshing];
    [self.tableView reloadData];
    
    
}
//代理UISearchBarDelegate
//开始编辑
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar
{
    return YES;
}
// 将要结束编辑
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{
    NSLog(@"searchBarTextDidBeginEditing");
}
//是否可以结束编辑
- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar
{
    return YES;
}
// 文本内容编辑结束
- (void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
{
//    [searchBar resignFirstResponder];
    NSLog(@"searchBarTextDidEndEditing");
}
//文本内容改变
- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
    NSLog(@"textDidChange");
    NSLog(@"%@",searchText);
    if (searchText.length==0) {
        [searchBar resignFirstResponder];
        _searchData=[_allData copy];
        [self.tableView reloadData];
    }

}
//文本改变之前是否可以改变
- (BOOL)searchBar:(UISearchBar *)searchBar shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
    return YES;
}
//查询按钮点击
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar
{
    [searchBar resignFirstResponder];
    NSPredicate *predicate=[NSPredicate predicateWithFormat:@"SELF CONTAINS %@",searchBar.text];
    _searchData=[[_allData filteredArrayUsingPredicate:predicate] copy];
    [self.tableView reloadData];
}
//书签按钮点击
- (void)searchBarBookmarkButtonClicked:(UISearchBar *)searchBar
{
    NSLog(@"searchBarBookmarkButtonClicked");
}
//取消按钮点击
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar
{
    [searchBar resignFirstResponder];

}
// 搜索结果按钮点击
- (void)searchBarResultsListButtonClicked:(UISearchBar *)searchBar
{
    NSLog(@"searchBarResultsListButtonClicked");

}
//Scope选择索引改变
- (void)searchBar:(UISearchBar *)searchBar selectedScopeButtonIndexDidChange:(NSInteger)selectedScope
{
    NSLog(@"%ld",selectedScope);
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}
-(void)tableView:(UITableView *)tableView willDisplayCell:(UITableViewCell *)cell forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if ([cell respondsToSelector:@selector(setSeparatorInset:)]) {
        [cell setSeparatorInset:UIEdgeInsetsZero];
    }
    // UIView默认的layoutMargins的值为 {8, 8, 8, 8}.在我们改变View的layoutMargins这个属性时,会触发- (void)layoutMarginsDidChange这个方法。我们在自己的View里面可以重写这个方法来捕获layoutMargins的变化。在大多数情况下,我们可以在这个方法里触发drawing和layout的Update。preservesSuperviewLayoutMargins这个属性默认是NO。如果把它设为YES,layoutMargins会根据屏幕中相关View的布局而改变。
#ifdef __IPHONE_8_0
    if ([cell respondsToSelector:@selector(setLayoutMargins:)]) {
        [cell setLayoutMargins:UIEdgeInsetsZero];
    }
    
    if([cell respondsToSelector:@selector(setPreservesSuperviewLayoutMargins:)]){
        [cell setPreservesSuperviewLayoutMargins:NO];
    }
#endif
}
#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // Return the number of sections.
    return _pageIndex;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return _searchData.count;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *identifier=@"identifier";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
   
    if (cell==nil) {
        cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
        
    }
     cell.textLabel.text=[NSString stringWithFormat:@"%@",[_searchData objectAtIndex:indexPath.row] ];
    
    return cell;
}


// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath {
    // Return NO if you do not want the specified item to be editable.
    
    return YES;
}



// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath {
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        // Delete the row from the data source
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
    } else if (editingStyle == UITableViewCellEditingStyleInsert) {
        // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
    }   
}



// Override to support rearranging the table view.
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath {
}



// Override to support conditional rearranging of the table view.
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath {
    // Return NO if you do not want the item to be re-orderable.
    return YES;
}
-(UIView *)tableView:(UITableView *)tableView viewForFooterInSection:(NSInteger)section
{
    UIView *v=[[UIView alloc]initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 44)];
    v.backgroundColor=[UIColor yellowColor];
    return v;
    
}
- (CGFloat)tableView:(UITableView *)tableView heightForFooterInSection:(NSInteger)section
{
    return 44;
}
/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end




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