無法將圖像添加到UITextField的左視圖ios7

Question

我有一個UITextFiled添加到視圖在Xcode 5.1中，我試圖使用下面的代碼將圖像添加到其左視圖，但是當我運行所有我沒有看到圖像時，不明白其中的道理，請大家幫忙

UIImageView *imgView = [[UIImageView alloc] init]; 
imgView.image = [UIImage imageNamed:@"Key.png"]; 

[txtCode setLeftViewMode:UITextFieldViewModeAlways]; 
[txtCode setLeftView:imgView]; 

Answer 1

設置圖像視圖幀：

yourTextField.borderStyle = UITextBorderStyleNone; 

UIImageView *imgView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)]; 
imgView.image = [UIImage imageNamed:@"Key.png"]; 

[yourTextField setLeftViewMode:UITextFieldViewModeAlways]; 
[yourTextField setLeftView:imgView]; 

Answer 2

希望這將幫助你...增加圖像中paddingView如果你想。

UIView *paddingView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 5, 20)]; 
self.textFiled.leftView = paddingView; 
self.textFiled.leftViewMode = UITextFieldViewModeAlways;