分段控件更改tableView數據源

Question

UISegmentedControl更改tableView數據源。我描述[myView addSubview:_tableView];
代替[self.view addSubview:_tableView];，
後
daySegmentedControl過程中停止工作。

我有這段代碼。

ViewController.m

@implementation ViewController 
{ 
    int _tableType; 
    NSArray *_data1; 
    NSArray *_data2; 
} 

@synthesize segment; 
@synthesize daySegment; 
@synthesize myView; 

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    _tableType = 1; 
    _data1 = @[@[@"A",@"B",@"C"]]; 
    _data2 = @[@[@"D",@"E",@"F"]]; 

    myView = [[UIView alloc]initWithFrame:CGRectMake(-1, 44, 340, 480)]; 
    [self.view addSubview:myView]; 
    myView.opaque = NO; 
    myView.backgroundColor = [UIColor colorWithWhite:1.0f alpha:0.0f]; 
    [self.view bringSubviewToFront:myView]; 

    [self segmentView]; 
    [self daySegmentView]; 
    [self dayTableView]; 
} 

- (void)segmentView 
{ 
    NSArray *SegmentContent = [NSArray arrayWithObjects:@"View1",@"View2",nil]; 
    segment = [[UISegmentedControl alloc] initWithItems:WDSegmentContent]; 
    segment.frame = CGRectMake(-2, 20, 326, 25); 
    segment.selectedSegmentIndex = 0; 
    [segment addTarget:self action:@selector(WDSegmentAction:) forControlEvents:UIControlEventValueChanged]; 
    [self.view addSubview:segment]; 
} 

- (void)WDSegmentAction:(id)sender 
{ 
    switch (segment.selectedSegmentIndex){ 
     case 0: 
      [self dayTableView]; 
      break; 

     case 1: 
      [self dayTableView]; 
      break; 

     default: 
      break; 
    } 
} 

- (void)daySegmentView 
{ 
    NSArray *daySegmentContent = [NSArray arrayWithObjects:@"A",@"D",nil]; 
    daySegment = [[UISegmentedControl alloc] initWithItems:daySegmentContent]; 
    daySegment.frame = CGRectMake(0, 0, 326, 25); 
    daySegment.selectedSegmentIndex = 0; 
    [daySegment addTarget:self action:@selector(daySegmentAction:) forControlEvents:UIControlEventValueChanged]; 
    [myView addSubview:daySegment]; 
} 

- (void)daySegmentAction:(id)sender 
{ 
    switch (segment.selectedSegmentIndex){ 
     case 0: 
      _tableType = 1; 
      [self.tableView reloadData]; 
      break; 

     case 1: 
      _tableType = 2; 
      [self.tableView reloadData]; 
      break; 

     default: 
      break; 
    } 
} 

- (void)dayTableView 
{ 
    _tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 30, 320, 480)]; 
    _tableView.dataSource = self; 
    _tableView.delegate = self; 
    [myView addSubview:_tableView]; 
} 

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView 
{ 
    return 1; 
} 

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section 
{ 
    return [_data1[section]count]; 
} 

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath 
{ 
    static NSString *CellIdentifier = @"Cell"; 
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier]; 
    if (cell == nil) { 
     cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier]; 
    } 

    NSString *data; 
    if (_tableType == 1) { 
     data = _data1[indexPath.section][indexPath.row]; 
    } else if (_tableType == 2){ 
     data = _data2[indexPath.section][indexPath.row]; 
    } 
    cell.textLabel.text = data; 

    return cell; 
} 

@end 

我如何可以修復它的任何想法？

Answer 1

使用daySegment.selectedSegmentIndex，而不是在

- (void)daySegmentAction:(id)sender 

Answer 2

我使用不同的方法來改變段。爲了方便說明：

在段改變方法：

[_tableView reloadData]; 

在你numberOfRowsInSection：

if(_segControl.selectedSegmentIndex == 0) 
    { 
     return [dataSourceOne count]; 
    }else 
    { 
     return [dataSourceTwo count]; 
    } 
} 

在你heightForRowAtIndexPath

if(_segControl.selectedSegmentIndex == 0) { //one 
     return 60; 
    } else { //two 
     return 70; 
    } 

在你的cellForRowAtIndexPath

if(_segControl.selectedSegmentIndex == 0) { 
    //generate and populate cell for type one 
}else 
{ 
    //generate and populate cell for type two 
}