Question

我用UIButtons制作键盘。在这个键盘上有49个UIButtons，它们创建了以下内容：


- (void)viewDidLoad {

    [self emoticonButtonOnTheKeyBoard_xCoordinate:0   yCoordinate:0 Emoticone_name:@"emoticon_angel.gif"        backString:@"O:-)"      keyboardView:self.view];
    [self emoticonButtonOnTheKeyBoard_xCoordinate:40  yCoordinate:0 Emoticone_name:@"emoticon_angry.gif"        backString:@":-@"       keyboardView:self.view];
    [self emoticonButtonOnTheKeyBoard_xCoordinate:80  yCoordinate:0 Emoticone_name:@"emoticon_big_smile.gif"    backString:@":-D"       keyboardView:self.view];
    [self emoticonButtonOnTheKeyBoard_xCoordinate:120 yCoordinate:0 Emoticone_name:@"emoticon_confused.gif"     backString:@":-s"       keyboardView:self.view];
    [self emoticonButtonOnTheKeyBoard_xCoordinate:160 yCoordinate:0 Emoticone_name:@"emoticon_cool.gif"         backString:@"B)"        keyboardView:self.view];
    [self emoticonButtonOnTheKeyBoard_xCoordinate:200 yCoordinate:0 Emoticone_name:@"emoticon_cry.gif"          backString:@":,-("      keyboardView:self.view];
    [self emoticonButtonOnTheKeyBoard_xCoordinate:240 yCoordinate:0 Emoticone_name:@"emoticon_disappoint.gif"   backString:@":-|"       keyboardView:self.view];
    [self emoticonButtonOnTheKeyBoard_xCoordinate:280 yCoordinate:0 Emoticone_name:@"emoticon_emo.gif"          backString:@"(Emo)"     keyboardView:self.view];

}

和创建方法：


- (IBAction) updatingTheTextFiledWithEmoticon
{
    iPhoneClientDevAppDelegate *appDelegate = (iPhoneClientDevAppDelegate *)[[UIApplication sharedApplication] delegate];
    [[appDelegate.personalchatviewcontrollerReference message_textfield] setText:[[[appDelegate.personalchatviewcontrollerReference message_textfield] text] stringByAppendingString:appDelegate.EmoticonCurrentButtonValue]];
}

- (void) emoticonButtonOnTheKeyBoard_xCoordinate:(int)x_coordinate yCoordinate:(int)y_coordinate Emoticone_name:(NSString *)emoticon_name
                                       backString:(NSString *)stringback keyboardView:(UIView *)keyboard
{
    iPhoneClientDevAppDelegate *appDelegate = (iPhoneClientDevAppDelegate *)[[UIApplication sharedApplication] delegate];
    appDelegate.EmoticonCurrentButtonValue = stringback;
    UIButton* emticon_button = [UIButton buttonWithType:UIButtonTypeCustom];
    emticon_button.frame = CGRectMake(x_coordinate, y_coordinate, 40, 43);
    [emticon_button setImage:[UIImage imageNamed:emoticon_name] forState:UIControlStateNormal];
    [emticon_button setImage:[UIImage imageNamed:emoticon_name] forState:UIControlStateHighlighted];
    [emticon_button setBackgroundImage:[UIImage imageNamed:@"background.png"] forState:UIControlStateNormal];
    [emticon_button ]
    [keyboard addSubview:emticon_button];


    [emticon_button addTarget:nil action:@selector(updatingTheTextFiledWithEmoticon)  forControlEvents:UIControlEventTouchUpInside];
}

所以，我成功地覆盖了键盘，但我遇到了一个大问题。当我按下键盘上的按钮时，应用程序始终返回最后创建的按钮值。我如何区分UIButtons？

谢谢！

Answer 1

为他们提供一个唯一的.tag属性（类型为int），并确保您的选择器将发件人作为参数：

-(IBAction)buttonPressed:(id)theButton
{
    NSLog("Button %d pressed",[theButton tag]);
}

区分iPhone上的UI按钮

1 个答案: