table基本用法
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
// Return the number of rows in the section.
return data.count;
}
//行高度
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
//动态控制cell的高度
//UITableViewCell *cell = [self tableView:tableView cellForRowAtIndexPath:indexPath];
//return cell.frame.size.height;
return 120;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *cellIdentifier = @"cell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil)
{
cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleValue1 reuseIdentifier:cellIdentifier];
}
//#import <SDWebImage/UIImageView+WebCache.h>
[cell.imageView setImageWithURL:[NSURL URLWithString:@"http://www.jjmc.com.cn/images/navi_figure_03.png"]
placeholderImage:[UIImage imageNamed:@"goodsHot"]];//左侧图片
//配置cell样式
cell.textLabel.text = [self.data objectAtIndex:[indexPath row]];//主标题
cell.detailTextLabel.text = @"detailslable";//副标题
//cell.imageView.image = [UIImage imageNamed:@"goodsHot"];//左侧图片
cell.accessoryView = [[UIImageView alloc]initWithImage:[UIImage imageNamed:@"goodsHot"]];//右侧图片
cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
return cell;
}
自定义UITableViewCell有两种方法：
1:利用xib
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *cellIdentifier=@"name";
BOOL nibsRegistered=NO;
if (!nibsRegistered) {
UINib *nib=[UINib nibWithNibName:@"TableViewCell1" bundle:nil];
[tableView registerNib:nib forCellReuseIdentifier:cellIdentifier];
nibsRegistered=YES;
}
TableViewCell1 *cell=[tableView dequeueReusableCellWithIdentifier:cellIdentifier];
//cell 上的元素初始化代码
return cell;
}
2:使用NSBundle
static NSString *tableCellIdentifier = @"name";
TableViewCell1 *cell = (TableViewCell1 *)[tableView dequeueReusableCellWithIdentifier:tableCellIdentifier];
if(cell == nil){
NSArray *nib = [[NSBundle mainBundle]loadNibNamed:@"TableViewCell1" owner:self options:nil];
for(id oneObject in nib){
if([oneObject isKindOfClass:[TableViewCell1 class]]){
cell = (TableViewCell1 *)oneObject;
}
}
}
cell.lable1.text = [self.data objectAtIndex:indexPath.row];
return cell;
2.1:无nib文件
static NSString *CellIdentifier = @"Cell";
PostTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (!cell) {
cell = [[PostTableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
cell.post = [self.posts objectAtIndex:(NSUInteger)indexPath.row];
return cell;
//initWithStyle 方法
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (!self) {
return nil;
}
3:使用故事版 （注意1:设置Identifier2:设置prototype cell 1 3：配置cell的class）
1 -(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
2 {
3 //这个是在storyboard中设置的identifier
4 static NSString *tableCellIdentifier = @"name";
5 MyCell *cell = (MyCell *)[tableView dequeueReusableCellWithIdentifier:tableCellIdentifier];
6 //cell初始化
7 return cell;
8 }
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
#warning Potentially incomplete method implementation.
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
#warning Incomplete method implementation.
// Return the number of rows in the section.
return self.flilterData.count;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *tableCellIdentifier = @"name";
TableViewCell1 *cell = (TableViewCell1 *)[tableView dequeueReusableCellWithIdentifier:tableCellIdentifier];
if(cell == nil){
NSArray *nib = [[NSBundle mainBundle]loadNibNamed:@"TableViewCell1" owner:self options:nil];
for(id oneObject in nib){
if([oneObject isKindOfClass:[TableViewCell1 class]]){
cell = (TableViewCell1 *)oneObject;
}
}
}
cell.lable1.text = [self.flilterData objectAtIndex:indexPath.row];
return cell;
}
搜索查询
-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{
// NSLog(@"%@",searchBar.text);
}
-(void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText{
NSLog(@"%@",searchBar.text);
[self filterContentForSearchbar:searchText];
}
-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{
NSLog(@"cancel");
}
-(void)filterContentForSearchbar:(NSString *)searchText{
if([searchText length]==0){
//查询所有
self.flilterData = [NSArray arrayWithArray:self.data];
}
else{
NSPredicate *predicate = [NSPredicate predicateWithFormat:@"SELF CONTAINS %@",searchText];
self.flilterData = [self.flilterData filteredArrayUsingPredicate:predicate];
}
}
#pragma mark 索引列表
- (NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView
{
//set color
tableView.sectionIndexColor = [UIColor redColor];
tableView.sectionIndexBackgroundColor = [UIColor clearColor];
NSMutableArray *toBeReturned = [[NSMutableArray alloc]init];
for(char c = 'A';c<='Z';c++)
[toBeReturned addObject:[NSString stringWithFormat:@"%c",c]];
return toBeReturned;
}
- (NSInteger)tableView:(UITableView *)tableView sectionForSectionIndexTitle:(NSString *)title atIndex:(NSInteger)index
{
// [tableView setContentOffset:CGPointMake(0,41*(count-1)-20) animated:YES];
return 5;
}
