CGFloat viewWidth = self.view.bounds.size.width; CGFloat textFieldX = 50; CGFloat textFieldH = 30; CGFloat padding = 30; UITextField *textField = [[UITextField alloc] init]; textField.frame = CGRectMake(textFieldX, 100, viewWidth - 2 * textFieldX, textFieldH); textField.borderStyle = UITextBorderStyleRoundedRect; // 邊框類型 textField.font = [UIFont systemFontOfSize:14]; NSAttributedString *attrString = [[NSAttributedString alloc] initWithString:@"請(qǐng)輸入占位文字" attributes: @{NSForegroundColorAttributeName:[UIColor redColor],     NSFontAttributeName:textField.font   }]; textField.attributedPlaceholder = attrString; [self.view addSubview:textField];

 UITextField *textField1 = [[UITextField alloc] init]; textField1.frame = CGRectMake(textFieldX, CGRectGetMaxY(textField.frame) + padding, viewWidth - 2 * textFieldX, textFieldH); textField1.borderStyle = UITextBorderStyleRoundedRect; textField1.placeholder = @"請(qǐng)輸入占位文字"; textField1.font = [UIFont systemFontOfSize:14]; // "通過(guò)KVC修改占位文字的顏色" [textField1 setValue:[UIColor greenColor] forKeyPath:@"_placeholderLabel.textColor"]; [self.view addSubview:textField1];

// 重寫(xiě)此方法-(void)drawPlaceholderInRect:(CGRect)rect { // 計(jì)算占位文字的 Size CGSize placeholderSize = [self.placeholder sizeWithAttributes:        @{NSFontAttributeName : self.font}]; [self.placeholder drawInRect:CGRectMake(0, (rect.size.height - placeholderSize.height)/2, rect.size.width, rect.size.height) withAttributes: @{NSForegroundColorAttributeName : [UIColor blueColor],     NSFontAttributeName : self.font}];}