Question

请查看我的代码

-(IBAction)clickButton1:(id)sender{
label1.hidden=NO;
button1.userInteractionEnabled = NO;
NSString *sql = [NSString stringWithFormat:@"SELECT * FROM table order by id asc"];
    NSArray *all = [datebase selectData:sql columns:71];
    index = [all count]-1;
    if (index < 0) {
        NSLog(@"no");
    }
    else{
        for(i=0;i<=index;i++){
            NSArray *row = [all objectAtIndex:i];
            NSString *serid = [row objectAtIndex:0];            
            NSString *logtime = [row objectAtIndex:1];                        
            NSString *post =[NSString stringWithFormat:@"?id=%@&logtime=%@",id,ttime];
            NSString *searchTerm = [post stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
            NSString *hostStr = @"http://www.theurl.com/sy.php";
            hostStr = [hostStr stringByAppendingString:searchTerm];
            NSData *dataURL =  [NSData dataWithContentsOfURL: [NSURL URLWithString: hostStr]];
            NSString *serverOutput = [[NSString alloc] initWithData:dataURL encoding: NSUTF8StringEncoding];
            if([serverOutput isEqualToString:@"1"]){
                if (i==index) {
                    NSLog(@"success");
                }
            } 
            else {
                NSLog(@"error");
            }
        }
    }
   }

我使用代码，然后单击按钮，但标签仍然是隐藏的，所以对于button1，但如果我只移动代码

 -(IBAction)clickButton1:(id)sender{
label1.hidden=NO;
button1.userInteractionEnabled = NO;
  }

好的，他们的工作，所以我的代码有什么问题？有谁能够帮我？非常感谢

Answer 1

USE NSLog(@"bla bla bla")用于跟踪，如下所示：

-(IBAction)clickButton1:(id)sender {
    NSLog(@"bla bla bla") 
    label1.hidden=NO;
    button1.userInteractionEnabled = NO;
}

检查IB中与label1和button1的关联。（出口）

（iOS）如何使按钮和标签工作？

1 个答案: