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我有一個UIButton子類，它定製了一個按鈕。然後我有一個UITableViewCell子類，它使用此按鈕並將其放置在單元格中。最後，我有一個UITableViewController的子類，它顯示錶視圖幷包含自定義的單元格。我的問題是，定製按鈕「starbtn」不會顯示在表格中，而其他一切正常。我的代碼有什麼問題？按鈕不會出現在表格單元格中
favButton.h
#import <UIKit/UIKit.h>
@interface favButton : UIButton {
BOOL _checked;
}
@property (nonatomic, setter = setChecked:) BOOL checked;
-(void) setChecked:(BOOL) check;
@end
favButton.m
#import "favButton.h"
@implementation favButton
@synthesize checked = _checked;
-(id) init
{
if(self=[super init])
{
self.checked = NO;
[self addTarget:self action:@selector(OnCheck:) forControlEvents:UIControlEventTouchUpInside];
}
return self;
}
-(void) awakeFromNib
{
self.checked = NO;
[self addTarget:self action:@selector(OnCheck:) forControlEvents:UIControlEventTouchUpInside];
}
-(void) setChecked:(BOOL) check
{
_checked = check;
if(_checked)
{
[self setTintColor:[UIColor clearColor]];
UIImage* img = [UIImage imageNamed:@"startbefore.jpg"];
[self setImage:img forState:UIControlStateNormal|UIControlStateHighlighted|UIControlStateSelected|UIControlStateDisabled];
}
else
{
[self setTintColor:[UIColor clearColor]];
UIImage* img = [UIImage imageNamed:@"startafter.jpg"];
[self setImage:img forState:UIControlStateNormal|UIControlStateHighlighted|UIControlStateSelected|UIControlStateDisabled];
}
}
-(void) OnCheck:(id) sender
{
self.checked = !_checked;
}
@end
imageCellCell.h
#import <UIKit/UIKit.h>
#import "favButton.h"
@interface imageCellCell : UITableViewCell
@property (nonatomic, strong) UIView *view;
@property (nonatomic, strong) UILabel *label1;
@property (nonatomic, strong) UILabel *label2;
@property (nonatomic, strong) UIImageView *prodimage;
@property (nonatomic, strong) UIImageView *thumbsup;
@property (nonatomic, strong) UILabel *label3;
@property (nonatomic, strong) UIImageView *basket;
@property (nonatomic, strong) UIButton *homebtn;
@property (nonatomic, strong) favButton *starbtn;
@end
imageCellCell.m
#import "imageCellCell.h"
@implementation imageCellCell
@synthesize view;
@synthesize label1;
@synthesize label2;
@synthesize prodimage;
@synthesize thumbsup;
@synthesize label3;
@synthesize basket;
@synthesize homebtn;
@synthesize starbtn;
- (instancetype)init {
self = [super init];
self.starbtn = [[favButton alloc]initWithFrame:CGRectMake(243,0, 30, 30)];
[starbtn setTintColor:[UIColor clearColor]];
[starbtn setBackgroundImage:[UIImage imageNamed:@"startbefore.jpg"]
forState:UIControlStateNormal];
return self;
}
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
if (self) {
view = [[UIView alloc] initWithFrame:self.frame];
[self addSubview:view];
// initiate image
prodimage = [[UIImageView alloc]initWithFrame:CGRectMake(30,2, 180, 180)];
// initiate label1 score value
label1 = [[UILabel alloc] initWithFrame:CGRectMake(230,80,150,20)];
label1.textColor = [UIColor greenColor];
[[self label1] setFont:[UIFont systemFontOfSize:25]];
// initiate label2 score label
label2 = [[UILabel alloc] initWithFrame:CGRectMake(232,50,150,20)];
// initiate image
thumbsup = [[UIImageView alloc]initWithFrame:CGRectMake(240,108, 30, 30)];
// initiate label3 manufacturer
label3 = [[UILabel alloc] initWithFrame:CGRectMake(90,200,180,20)];
// initiate image
basket = [[UIImageView alloc]initWithFrame:CGRectMake(280,1, 30, 30)];
// initiate home button
homebtn = [[UIButton alloc]initWithFrame:CGRectMake(4,0, 30, 30)];
[homebtn setTintColor:[UIColor clearColor]];
[homebtn setBackgroundImage:[UIImage imageNamed:@"home.jpg"]
forState:UIControlStateNormal];
[view addSubview:prodimage];
[view addSubview:label1];
[view addSubview:label2];
[view addSubview:thumbsup];
[view addSubview:label3];
[view addSubview:basket];
[view addSubview:homebtn];
[view addSubview:starbtn];
}
return self;
}
@end
ProdViewController.m
#import "ProdViewController.h"
#import "imageCellCell.h"
@interface ProdViewController()
@end
@implementation ProdViewController
@synthesize tableview;
@synthesize tabbar;
@synthesize addfav;
@synthesize favData;
- (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.
favData = [[NSMutableArray alloc] init];
[tableview setDataSource:self];
[tableview setDelegate:self];
}
- (void)viewDidUnload
{
[self setTableview:nil];
[self setTabbar:nil];
[self setAddfav:nil];
[super viewDidUnload];
// Release any retained subviews of the main view.
}
...
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
NSString *CellIdentifier;
NSString *CellIdentifierimg;
UITableViewCell *cell;
if (cell == nil) {
if (indexPath.row == 0) {
cell = [[imageCellCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifierimg];
} else if (indexPath.row == 1) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}else if (indexPath.row == 2) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}else if (indexPath.row == 3) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}else if (indexPath.row == 4) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
}
switch ([indexPath row])
{
case 0:
{
imageCellCell *firstRowCell = (imageCellCell *)cell;
[firstRowCell.thumbsup setImage: [UIImage imageNamed:@"thumbs-up-green.jpg"]];
[firstRowCell.prodimage setImage: [UIImage imageNamed:@"test1.jpg"]];
[firstRowCell.label1 setText:@"10"];
[firstRowCell.label2 setText:@"Score"];
[firstRowCell.label3 setText:@"Name"];
[firstRowCell.basket setImage: [UIImage imageNamed:@"Basket.jpg"]];
// reference of the home button to the buttonclick method
[firstRowCell.homebtn addTarget:self action:@selector(clickButton:) forControlEvents:UIControlEventTouchUpInside];
// reference of the favorites button to the buttonclick method
[firstRowCell.starbtn addTarget:self action:@selector(clickFavButton:) forControlEvents:UIControlEventTouchUpInside];
firstRowCell.accessoryType = UITableViewCellAccessoryNone;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
break;
}
case 1:
{
cell.textLabel.text = @"Row 2";
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
break;
}
case 2:
{
cell.textLabel.text = @"Row 3";
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
break;
}
case 3:
{
cell.textLabel.text = @"Row 4";
cell.accessoryType = UITableViewCellAccessoryDetailDisclosureButton;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
break;
}
}
return cell;
}
-(IBAction)clickFavButton:(id)sender{
[favData addObject:@"productname"];
}
@end
看看我的新編輯答案 –