UIButton not responding to click event in UITableViewCell - ios

Question

there is this dark sorcery in ios is preventing my button being clicked. if i don't add button to the uitableviewcell, and i click the button, the event is triggered.
but if the button is in uitableviewcell, it won't get triggered, it seems table
i have sample code ready, if you guys can help me, please just create a simple single-view application in xcode, and just paste the following code
//GRDViewController.h
#import <UIKit/UIKit.h>
#interface GRDViewController : UIViewController <UITableViewDataSource, UITableViewDelegate>
#property (nonatomic, strong) UIView* container;
#property (nonatomic, strong) UIButton* button;
#property (nonatomic, strong) UITableView* tableView;
#property (nonatomic, strong) NSArray* arr;
#end
//GRDViewController.m
#import "GRDViewController.h"
#implementation GRDViewController
#synthesize button, container, arr, tableView;
- (void)_btnTapped {
NSLog(#"TAPPED");
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.button = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 100, 100)];
[self.button addTarget:self action:#selector(_btnTapped) forControlEvents:UIControlEventTouchUpInside];
[self.button setTitle:#"CLICK ME" forState:UIControlStateNormal];
self.arr = [[NSArray alloc] initWithObjects:#"123", #"456", #"678", nil];
self.container = [[UIView alloc]initWithFrame:self.button.frame];
[self.container addSubview:self.button];
[self.view addSubview:self.container];
//[self.view addSubview:self.button];
self.tableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 100, 400, 400)];
self.tableView.autoresizingMask = UIViewAutoresizingFlexibleHeight | UIViewAutoresizingFlexibleWidth;
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
self.tableView.delegate = self;
self.tableView.dataSource = self;
[self.view addSubview:self.tableView];
self.tableView.backgroundColor = [UIColor redColor];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath {
static NSString *cellIdentifier = #"coolcell";
UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellIdentifier];
//cell.accessoryType = UITableViewCellAccessoryNone;
UIButton * btn = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 50, 50)];
[btn addTarget:self action:#selector(_btnTapped) forControlEvents:UIControlStateNormal];
[btn setTitle:[self.arr objectAtIndex:[indexPath row]] forState:UIControlStateNormal];
[cell.contentView addSubview:btn];
}
return cell;
}
- (NSInteger)tableView:(UITableView*)tableView numberOfRowsInSection:(NSInteger)section {
return [self.arr count];
}
#end
please help
i feel this case should be common in ios, but nobody has solution for this???
edit: when click on the button it prints NSLOG msg in the xcode console...so make sure...u r looking at the results there...

Answer 1

you have not given any control event to button .Change it to UIControlEventTouchUpInside from UIControlStateNormal

Answer 2

Instead of using UIControlStateNormal for ControlEvents use UIControlEventTouchUpInside like this
[btn addTarget:self action:#selector(_btnTapped) forControlEvents:UIControlEventTouchUpInside];

Answer 3

Try doing this:
[btn.titleLabel setUserInteractionEnabled: NO];