如何在圖像視圖中對齊標籤？

我有一個滾動視圖（IBOutlet）;在那個scrollview中我添加了一個imageview。我試圖根據其大小在圖像中添加標籤。我的意思是，有9個選項可以在圖像中添加標籤：例如TR（右上角），TC（頂部中心），C（中心）......假設我的圖像比iPhone的分辨率要小，比如300x160。現在，我在圖像視圖中加載標籤，但它不能正常工作，標籤的對齊方式不正確。這裏是我的對齊按鈕代碼：如何在圖像視圖中對齊標籤？

-(IBAction)btn_AlignPressed:(UIButton*)sender{ 
    lbl.tag = sender.tag; 
    [imgView addSubview:lbl]; 
    if (sender.tag == 1) { 
     lbl.frame = CGRectMake(0, 0, imgView.frame.size.width, imgView.frame.size.height); 
    } else if(sender.tag == 2) { 
     lbl.frame = CGRectMake(160-(imgView.frame.size.width/2), 0, imgView.frame.size.width, imgView.frame.size.height); 
    } else if(sender.tag == 3) { 
     lbl.frame = CGRectMake(320-imgView.frame.size.width, 0, imgView.frame.size.width, imgView.frame.size.height); 
    } else if(sender.tag == 4) { 
     lbl.frame = CGRectMake(0, 210-(imgView.frame.size.height/2), imgView.frame.size.width, imgView.frame.size.height); 
    } else if(sender.tag == 5) { 
     lbl.frame = CGRectMake(160-(imgView.frame.size.width/2), 210-(imgView.frame.size.height/2), imgView.frame.size.width, imgView.frame.size.height); 
    } else if(sender.tag == 6) { 
     lbl.frame = CGRectMake(320-imgView.frame.size.width, 210-(imgView.frame.size.height/2), imgView.frame.size.width, imgView.frame.size.height); 
    } else if(sender.tag == 7) { 
     lbl.frame = CGRectMake(0, 420-imgView.frame.size.height, imgView.frame.size.width, imgView.frame.size.height); 
    } else if(sender.tag == 8) { 
     lbl.frame = CGRectMake(160-(imgView.frame.size.width/2), 420-imgView.frame.size.height, imgView.frame.size.width, imgView.frame.size.height); 
    } else if(sender.tag == 9) { 
     lbl.frame = CGRectMake(320-imgView.frame.size.width, 420-imgView.frame.size.height, imgView.frame.size.width, imgView.frame.size.height); 
    } 
}

請幫幫我。

在此先感謝。

來源

2012-06-28 HML

您只設置x和y值，您還必須處理標籤的寬度和高度。

來源

2012-06-28 06:41:01 AJS

如何在圖像視圖中對齊標籤？

回答

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