多次点击按钮时出现错误的异常错误

Question

我们有Like，Dislike和Comment的功能。每当任何用户点击Like按钮更多时间，它就会显示Exc_Bad_Access [Code = 1]错误。下面是代码中我收到此错误的部分。

-(IBAction)sendLike:(id)sender{
    UIButton *btn=(UIButton *)sender;
    if(!btn.tag)
    {
        btn.tag=0;
    }
    postCell *curCell=(postCell *)[self.tableView cellForRowAtIndexPath:[NSIndexPath indexPathForRow:btn.tag inSection:0]];
    user *myUser = [[[user alloc] init] autorelease];
    if([myUser likeObjectByID:[[[self.thePosts objectAtIndex:[(UIButton *) sender tag]] theData] objectForKey:@"itemID"]]){
        curCell.myASB.likeCount += 1;
        curCell.myASB.canLike=YES;
        [[[self.thePosts objectAtIndex:curCell.myIndex] theData] setObject:[NSString stringWithFormat:@"0"] forKey:@"canLike"];
        NSString *tempCount = [NSString stringWithFormat:@"%i", curCell.myASB.likeCount];

        [[[self.thePosts objectAtIndex:curCell.myIndex] theData] setObject:tempCount forKey:@"likes"];
        [self.tableView reloadData];
    }
}

Answer 1

尝试在代码中使用try - catch - finally。 也许它会让应用程序继续运行。

@try {
        //Here write the code which you want to run,
        //In your case add the button action code here.
    }
    @catch (NSException *exception) {
        NSLog(@"Exception At: %s %d %s %s %@", __FILE__, __LINE__, __PRETTY_FUNCTION__, __FUNCTION__,exception);

        //Here you can put some alert view to notify the user, that something went wrong.
        //This is not compulsary.
    }
    @finally {
    }