表视图的列表按钮
SecondLevelViewController.h－－－查看前边例子
接口实现：
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#import <Foundation/Foundation.h>
#import "SecondLevelViewController.h" @interface RowControlsController : SecondLevelViewController {
NSArray *list;
}
@property (nonatomic, retain) NSArray *list;
- (IBAction)buttonTapped:(id)sender;
@end | |
实现：
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#import "RowControlsController.h" @implementation RowControlsController
@synthesize list; //表视图按钮的点击事件
- (IBAction)buttonTapped:(id)sender
{
UIButton *senderButton = (UIButton *)sender;
UITableViewCell *buttonCell = (UITableViewCell *)[senderButton superview];
//获取表视图的一行id
NSUInteger buttonRow = [[self.tableView indexPathForCell:buttonCell] row];
//获取列表内容
NSString *buttonTitle = [list objectAtIndex:buttonRow];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"You tapped the button"
message:[NSString stringWithFormat:@"You tapped the button for %@", buttonTitle]
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
}
- (void)viewDidLoad {
NSArray *array = [[NSArray alloc] initWithObjects:@"R2-D2",
@"C3PO", @"Tik-Tok", @"Robby", @"Rosie", @"Uniblab",
@"Bender", @"Marvin", @"Lt. Commander Data",
@"Evil Brother Lore", @"Optimus Prime", @"Tobor", @"HAL",
@"Orgasmatron", nil];
self.list = array;
[array release];
[super viewDidLoad];
}
- (void)viewDidUnload {
self.list = nil;
[super viewDidUnload];
}
- (void)dealloc {
[list release];
[super dealloc];
}
#pragma mark -
#pragma mark Table Data Source Methods
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return [list count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *ControlRowIdentifier = @"ControlRowIdentifier";
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:ControlRowIdentifier];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault
reuseIdentifier:ControlRowIdentifier] autorelease];
//设置按钮
UIImage *buttonUpImage = [UIImage imageNamed:@"button_up.png"];
UIImage *buttonDownImage = [UIImage imageNamed:@"button_down.png"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0.0, 0.0, buttonUpImage.size.width, buttonUpImage.size.height);
[button setBackgroundImage:buttonUpImage forState:UIControlStateNormal];
[button setBackgroundImage:buttonDownImage forState:UIControlStateHighlighted];
[button setTitle:@"Tap" forState:UIControlStateNormal];
[button addTarget:self action:@selector(buttonTapped:) forControlEvents:UIControlEventTouchUpInside];
//将按钮添加到行中
cell.accessoryView = button;
}
NSUInteger row = [indexPath row];
NSString *rowTitle = [list objectAtIndex:row];
cell.textLabel.text = rowTitle;
return cell;
}
#pragma mark -
#pragma mark Table Delegate Methods
- (void)tableView:(UITableView *)tableView
didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
//点击一行时的操作
NSUInteger row = [indexPath row];
NSString *rowTitle = [list objectAtIndex:row];
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"You tapped the row."
message:[NSString stringWithFormat:@"You tapped %@.", rowTitle]
delegate:nil
cancelButtonTitle:@"OK"
otherButtonTitles:nil];
[alert show];
[alert release];
[tableView deselectRowAtIndexPath:indexPath animated:YES];
}
@end
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