UILabel*placeholderLabel = [textFieldvalueForKey:@"_placeholderLabel"];
placeholderLabel.adjustsFontSizeToFitWidth=YES;
UILabel*placeholderLabel = [textFieldvalueForKey:@"_placeholderLabel"];
placeholderLabel.adjustsFontSizeToFitWidth=YES;
本文标题:iOS UITextField 的placeHolder 文字自
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