UITableView 和 UISegmentedControl
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【中文标题】UITableView 和 UISegmentedControl【英文标题】：UITableView and UISegmentedControl 【发布时间】：2013-03-06 06:12:02 【问题描述】：我是 iPhone 开发的新手。我有一个 UITableView 三个部分，每个部分有三行。我有一个带有三个索引的 UISegmentedControl。tableview 最初是隐藏的。当我选择 segmentIndex 的任何索引时，它会显示三个部分的 tableview。 但我的问题是，当我选择分段控件的索引时，它会显示只有一个部分的 tableView，而其他两个部分隐藏在 tableView 中。如何做请回答 这是我的代码
#import "DetailViewController.h"
@interface DetailViewController ()
@end
@implementation DetailViewController
@synthesize tblView;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self)
// Custom initialization
return self;
- (void)viewDidLoad
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
//Customize tableview
tblView = [[UITableView alloc] init];
firstName = [NSArray arrayWithObjects:@"Parth",@"Bhadresh",@"Marshal", nil];
middleName = [NSArray arrayWithObjects:@"Dipakbhai",@"Dineshbhai",@"Mansukhbhai",nil];
lastName = [NSArray arrayWithObjects:@"Patel",@"Laiya",@"Kaneria", nil];
tblView.delegate = self;
tblView.dataSource = self;
-(void)viewWillAppear:(BOOL)animated
sgmtControl.frame = CGRectMake(17, 180, 285, 44);
tblView.frame = CGRectMake(0, 0, 320, 364);
tblView.hidden = YES;
[self.view addSubview:tblView];
- (void)didReceiveMemoryWarning
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
return 3;
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
switch (section)
case 0:
return 3;
break;
case 1:
return 3;
break;
case 2:
return 3;
break;
return 0;
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection: (NSInteger)section
switch (section)
case 0:
return @"FirstName";
break;
case 1:
return @"MiddleName";
break;
case 2:
return @"LastName";
break;
return nil;
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
static NSString *myIdentifier = @"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:myIdentifier];
if (cell == nil)
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:myIdentifier];
switch (indexPath.section)
case 0:
cell.textLabel.text =[firstName objectAtIndex:indexPath.row];
break;
case 1:
cell.textLabel.text = [middleName objectAtIndex:indexPath.row];
break;
case 2:
cell.textLabel.text = [lastName objectAtIndex:indexPath.row];
break;
return cell;
-(IBAction)changeSegement:(id)sender
if(sgmtControl.selectedSegmentIndex == 0)
tblView.hidden = NO;
else if (sgmtControl.selectedSegmentIndex == 1)
tblView.hidden = NO;
else if (sgmtControl.selectedSegmentIndex == 2)
tblView.hidden = NO;
【问题讨论】：
在每个段点击重新加载表格 在每个段中重新放置的表在我的表视图中显示所有三个部分。但我只想显示一个部分，而隐藏其他两个部分。 【参考方案1】：这样做，
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
return 1;
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
switch (sgmtControl.selectedSegmentIndex)
case 0:
return [firstName count];
break;
case 1:
return [middleName count];
break;
case 2:
return [lastName count];
break;
return 0;
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection: (NSInteger)section
switch (sgmtControl.selectedSegmentIndex)
case 0:
return @"FirstName";
break;
case 1:
return @"MiddleName";
break;
case 2:
return @"LastName";
break;
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
static NSString *myIdentifier = @"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:myIdentifier];
if (cell == nil)
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:myIdentifier];
switch (sgmtControl.selectedSegmentIndex)
case 0:
cell.textLabel.text =[firstName objectAtIndex:indexPath.row];
break;
case 1:
cell.textLabel.text = [middleName objectAtIndex:indexPath.row];
break;
case 2:
cell.textLabel.text = [lastName objectAtIndex:indexPath.row];
break;
return cell;
-(IBAction)changeSegement:(id)sender
if(sgmtControl.selectedSegmentIndex == 0)
tblView.hidden = NO;
else if (sgmtControl.selectedSegmentIndex == 1)
tblView.hidden = NO;
else if (sgmtControl.selectedSegmentIndex == 2)
tblView.hidden = NO;
[tblView reloadData];
【讨论】：
【参考方案2】：对 Mountain Lion 的代码稍作修改，使其更通用并移除开关
@synthesize currentArray;
.
.
.
.
- (void)viewDidLoad
.
.
.
//ALLOCATE currentArray
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
return 1;
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
return currentArray.count;
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection: (NSInteger)section
switch (sgmtControl.selectedSegmentIndex)
case 0:
return @"FirstName";
break;
case 1:
return @"MiddleName";
break;
case 2:
return @"LastName";
break;
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
static NSString *myIdentifier = @"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:myIdentifier];
if (cell == nil)
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:myIdentifier];
cell.textLabel.text =[currentArray objectAtIndex:indexPath.row];
return cell;
-(IBAction)changeSegement:(id)sender
if(sgmtControl.selectedSegmentIndex == 0)
currentArray = firstName;
else if (sgmtControl.selectedSegmentIndex == 1)
currentArray = middleName;
else if (sgmtControl.selectedSegmentIndex == 2)
currentArray = lastName;
tblView.hidden = NO;
[tblView reloadData];
【讨论】：
【参考方案3】：试试这个
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
return 1;
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
switch (sgmtControl.selectedSegmentIndex)
case 0:
return 3;
break;
case 1:
return 3;
break;
case 2:
return 3;
break;
return 0;
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection: (NSInteger)section
switch (sgmtControl.selectedSegmentIndex)
case 0:
return @"FirstName";
break;
case 1:
return @"MiddleName";
break;
case 2:
return @"LastName";
break;
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
static NSString *myIdentifier = @"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:myIdentifier];
if (cell == nil)
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:myIdentifier];
switch (sgmtControl.selectedSegmentIndex)
case 0:
cell.textLabel.text =[firstName objectAtIndex:indexPath.row];
break;
case 1:
cell.textLabel.text = [middleName objectAtIndex:indexPath.row];
break;
case 2:
cell.textLabel.text = [lastName objectAtIndex:indexPath.row];
break;
return cell;
【讨论】：
【参考方案4】：我相信我理解您想要做什么，您希望根据选择的按钮段显示不同的表格视图单元格。
您需要让 cellForRowAtIndexPath 检查选择了哪个段并返回正确的单元格集。
当用户更改分段按钮时，有changeSegment：将选定的分段存储在实例变量中。然后让它调用 [self reloadData];
#import "DetailViewController.h"
@interface DetailViewController ()
NSArray *names;
NSInteger segIndex;
@property (nonatomic, strong) NSArray *names;
@property (nonatomic) segIndex;
@end
@implementation DetailViewController
@synthesize tblView;
@synthesize names;
@synthesize segIndex;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self)
// Custom initialization
return self;
- (void)viewDidLoad
[super viewDidLoad];
// Do any additional setup after loading the view from its nib.
//Customize tableview
tblView = [[UITableView alloc] init];
self.names = [NSArray arrayWithObjects: [NSArray arrayWithObjects:@"Parth",@"Bhadresh",@"Marshal", nil],
[NSArray arrayWithObjects:@"Dipakbhai",@"Dineshbhai",@"Mansukhbhai",nil],
[NSArray arrayWithObjects:@"Patel",@"Laiya",@"Kaneria", nil],
nil];
tblView.delegate = self;
tblView.dataSource = self;
-(void)viewWillAppear:(BOOL)animated
sgmtControl.frame = CGRectMake(17, 180, 285, 44);
tblView.frame = CGRectMake(0, 0, 320, 364);
tblView.hidden = YES;
[self.view addSubview:tblView];
- (void)didReceiveMemoryWarning
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
return [self.names count];
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
return [[self.names objectAtIndex:section] count];
-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection: (NSInteger)section
switch (section)
case 0:
return @"FirstName";
case 1:
return @"MiddleName";
case 2:
return @"LastName";
return nil;
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
static NSString *myIdentifier = @"MyIdentifier";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:myIdentifier];
if (cell == nil)
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:myIdentifier];
cell.textLabel.text =[[self.names objectAtIndex:self.segIndex] objectAtIndex:indexPath.row];
return cell;
-(IBAction)changeSegement:(id)sender
self.segIndex = sgmtControl.selectedSegmentIndex;
[self reloadData];
【讨论】：
它的小工作第一次选择按钮段，它显示一个部分，另一个被隐藏，但第二次显示两个部分，第三次选择按钮段显示带有三个部分的 tableview 我想要每个时间按钮段被选中，它只显示一个部分，其他两个被隐藏 @parthpatel 不客气。如果这是您在程序中使用的代码，请将此回复标记为您问题的答案。【参考方案5】： //You may get hint from my code
//UISegmentedControl with TableView using Objective C
//complete working code
@interface TabTwoScheduleViewController () <UITableViewDelegate , UITableViewDataSource>
CGRect rect;
NSArray *list;
NSArray *list1;
NSArray *list2;
NSArray *list3;
NSArray *list4;
UITableView *segmentTableView;
@end
@implementation TabTwoScheduleViewController
- (void)viewDidLoad
[super viewDidLoad];
rect = [[UIScreen mainScreen]bounds];
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(10, 10, rect.size.width-20, rect.size.height/10-23)];
scroll.contentSize = CGSizeMake(rect.size.width, rect.size.height * 2);
scroll.showsHorizontalScrollIndicator = YES;
scroll.backgroundColor = [UIColor yellowColor];
NSArray *itemArray = [NSArray arrayWithObjects: @"ONLINE", @"CLAs-s-rOOM", @"WEBCASTING", nil];
list = [NSArray arrayWithObjects:@"list.1",@"list.2",@"list.3",@"list.4",@"list.5", nil];
list1 = [NSArray arrayWithObjects:@"list1.1",@"list1.2",@"list1.3",@"list1.4",@"list1.5", nil];
list2 = [NSArray arrayWithObjects:@"list2.1",@"list2.2",@"list2.3",@"list2.4",@"list2.5", nil];
list3 = [NSArray arrayWithObjects:@"list3.1",@"list3.2",@"list3.3",@"list3.4",@"list3.5", nil];
list4 = [NSArray arrayWithObjects:@"list4.1",@"list4.2",@"list4.3",@"list4.4",@"list4.5", nil];
// segmentedControl is declared as property
self.segmentedControl = [[UISegmentedControl alloc] initWithItems:itemArray];
self.segmentedControl.frame = CGRectMake(0, 0, rect.size.width-20, 50);
self.segmentedControl.segmentedControlStyle =UISegmentedControlStylePlain;
[self.segmentedControl addTarget:self action:@selector(MySegmentControlAction:) forControlEvents: UIControlEventValueChanged];
self.segmentedControl.selectedSegmentIndex = 0;
[scroll addSubview:self.segmentedControl];
[self.view addSubview:scroll];
//ADDING TABLEVIEW OVER VIEW(I added this view to get leading and trailing space for tableViewCell)
UIView *vw = [[UIView alloc]initWithFrame:CGRectMake(0, 70, rect.size.width, rect.size.height)];
vw.backgroundColor = [UIColor redColor];
[self.view addSubview:vw];
//TABLE VIEW
segmentTableView = [[UITableView alloc]initWithFrame:CGRectMake(10, 0, rect.size.width-20, rect.size.height-230) style:UITableViewStylePlain];
segmentTableView.backgroundColor = [UIColor yellowColor];
segmentTableView.delegate = self;
segmentTableView.dataSource = self;
[vw addSubview:segmentTableView];
// number of sections for tableView
- (NSInteger)numberOfSectionsInTableView:(UITableView *)theTableView
NSInteger a=0;
switch (self.segmentedControl.selectedSegmentIndex)
case 0:
a=list.count;
break;
case 1:
a=list1.count;
break;
case 2:
a=list1.count;
break;
default:
a=list1.count;
break;
return a;
// number of row in the section
- (NSInteger)tableView:(UITableView *)theTableView numberOfRowsInSection:(NSInteger)section
return 1;
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
static NSString *simpleTableIdentifier = @"ScheduleCustomTableViewCell";
//ScheduleCustomTableViewCell is name of custom TabelViewCell
ScheduleCustomTableViewCell *cell =(ScheduleCustomTableViewCell *) [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier];
if (cell == nil)
NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"ScheduleCustomTableViewCell" owner:self options:nil];
cell = [nib objectAtIndex:0];
// conditions to get different values on label
if (self.segmentedControl.selectedSegmentIndex==0)
cell.labelAddress1.text = [list objectAtIndex:indexPath.section];
cell.labelAddress2.text = [list1 objectAtIndex:indexPath.section];
else if (self.segmentedControl.selectedSegmentIndex==1)
cell.labelAddress1.text = [list1 objectAtIndex:indexPath.section];
cell.labelAddress2.text = [list2 objectAtIndex:indexPath.section];
else
cell.labelAddress1.text = [list2 objectAtIndex:indexPath.section];
cell.labelAddress2.text = [list3 objectAtIndex:indexPath.section];
cell.backgroundColor = [UIColor yellowColor];
return cell ;
-(CGFloat)tableView:(UITableView* )tableView heightForRowAtIndexPath:(NSIndexPath* )indexPath
return 130;
// Header is given to get spacing between TableViewCells
-(CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
return 10;
- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
UIView *headerView = [[UIView alloc] init];
headerView.backgroundColor = [UIColor redColor];
return headerView;
- (void)didReceiveMemoryWarning
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
- (void)MySegmentControlAction:(UISegmentedControl *)segment
[segmentTableView reloadData];
@end
【讨论】：
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