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UITableView don't react on a tap

开发者 https://www.devze.com 2022-12-26 07:53 出处:网络
I have a fully working grouped tableview. But when i just tap on a cell - nothing happens. willSelectRowAtIndexPath is not even being called. All outlets are set correctly, userInteractions are enable

I have a fully working grouped tableview. But when i just tap on a cell - nothing happens. willSelectRowAtIndexPath is not even being called. All outlets are set correctly, userInteractions are enabled, tableView is the only view on a page. Googling for hours made no success. Everyone has a selection featu开发者_开发知识库re from the begining and someone even tries to ged rid of it. Help, please.

Code (bad one, i know):

//
//  VKFriendsPage.m
//  vKontakte
//
//  Created by ASPCartman on 3/29/10.
//  Copyright 2010 __MyCompanyName__. All rights reserved.
//

#import "VKFriendsPage.h"
#import "UIImage+Resize.h"
#import "VKProfilePage.h"


@implementation VKFriendsPage
@synthesize friends,onlineFriends,VKId,connection,avatarCache;
-(void) didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    NSLog(@" Memary Wornenk!!! OLOLOLOLOL!");
}

-(void)viewWillAppear:(BOOL)animated
{
    table.backgroundColor=[UIColor clearColor];
    if ([connection.myVkontakteID isEqual:VKId]) {
        friends=[connection.myVKProfile friendsAll];
        onlineFriends=[connection.myVKProfile friendsOnline];

    }
    self.avatarCache = [NSMutableDictionary dictionaryWithCapacity:2];
    queue = [NSOperationQueue new];
    table.allowsSelection=YES;
}
#pragma mark Table Data Source Protocol Implementation

//Количество строк в секции
//0ая - Ребята онлайн
//1ая - Все
- (NSInteger)tableView:(UITableView *)table numberOfRowsInSection:(NSInteger)section
{
    if (section==0) {
        return [onlineFriends count];
    }else if (section==1) {
        return [friends count];
    }else {
        return 0;
    }


}
//Создание клеток
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    //Инит клетки
    UITableViewCell *cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:@"FriendCell"];
    //Выбор секции
    NSArray *currentMan;
    if (indexPath.section==0) {
        currentMan=[onlineFriends objectAtIndex:indexPath.row];
    }else if (indexPath.section==1)
    {
        currentMan=[friends objectAtIndex:indexPath.row];
    }else {
        currentMan=nil;
    }
    cell.selectionStyle=UITableViewCellSelectionStyleBlue;
    cell.accessoryType=UITableViewCellAccessoryDisclosureIndicator;
    cell.textLabel.text=[currentMan objectAtIndex:1];
    cell.detailTextLabel.text=@"TODO: Статусы...";

    if ([avatarCache objectForKey:[currentMan objectAtIndex:2]]==nil) {
        NSDictionary *dic = [NSDictionary dictionaryWithObjectsAndKeys:indexPath,@"Path",[currentMan objectAtIndex:2],@"URLString",nil];

        NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self
                                                                                selector:@selector(fetchAvatar:)
                                                                                  object:dic];

        [cell.imageView setImage:[UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"profileIco" ofType:@"jpg"]]];
        [queue addOperation:operation];
        [operation autorelease];
    }else {
        [cell.imageView setImage:[avatarCache objectForKey:[currentMan objectAtIndex:2]]];
    }




    return [cell autorelease];
}

- (NSIndexPath *)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    return indexPath;
}
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    VKProfilePage *profilePage=[[VKProfilePage alloc] init];
    profilePage.title=[tableView cellForRowAtIndexPath:indexPath].textLabel.text;
    profilePage.connection=connection;  
    NSString *VKID;
    if (indexPath.section==0) {
        VKID=[[onlineFriends objectAtIndex:indexPath.row] objectAtIndex:0];
    }else if (indexPath.section==1) {
        VKID=[[friends objectAtIndex:indexPath.row] objectAtIndex:0];
    }

    profilePage.profile=[connection getProfileOf:VKID];
    [self.navigationController pushViewController:profilePage animated:YES];
    [profilePage release];
}


-(void)fetchAvatar:(NSDictionary *)dic
{
    NSData *imageData=[NSData dataWithContentsOfURL:[NSURL URLWithString:[dic objectForKey:@"URLString"]]];
    UIImage *image=[UIImage imageWithData:imageData];
    UIImage *resizedImage = [image thumbnailImage:70 transparentBorder:0 cornerRadius:5 interpolationQuality:kCGInterpolationHigh];
    [avatarCache setObject:resizedImage forKey:[dic objectForKey:@"URLString"]];
    [self performSelectorOnMainThread:@selector(updateRow:) withObject:[dic objectForKey:@"Path"] waitUntilDone:NO];
}

-(void)updateRow:(NSIndexPath *) ip
{
    [table reloadRowsAtIndexPaths:[NSArray arrayWithObject:ip] withRowAnimation:UITableViewRowAnimationNone];
}
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 2;
}

- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath;
{
    return NO;
};
- (NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section
{
    if (section==0) {
        return @"Online";
    }else {
        return @"Offline";
    }
}
- (NSString *)tableView:(UITableView *)tableView titleForFooterInSection:(NSInteger)section
{
    return nil;
};
@end


Did you implement something like this in your UITableView delegate?

- (BOOL)tableView:(UITableView *)tableView willSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    return NO;
}

Sorry, wrong assumption and a compiler warning ignored...

This is not the solution.


I did some experiments and found the property isUserInteractionEnabled on the UITableView View ancestor. If set to NO, the cell selection is disabled (as is any other interaction). In this case it is impossible to move the views cells up and down.

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