填充占位符文本ios [英] Padding Placeholder text ios

问题描述

我想让占位符文本显示在文本字段的中间(填充占位符文本).占位符文本的大小也需要增加.我的代码如下，我该如何解决?

I want to make the placeholder text display in middle of the textfield (Padding placeholder text). The size of the placeholder text also needs to increase. My code is as follows, how can i solve this ?

UITextField *textField = [[UITextField alloc] initWithFrame:CGRectMake(30, 220,250,55)];

textField.placeholder=@"iiiiiii";

UIView *padView = [[UIView alloc] initWithFrame:CGRectMake(10, 110, 10, 0)];
textField.leftView = padView;
    textField.leftViewMode = UITextFieldViewModeAlways;


[self.view addSubview:textField];

更新

我希望占位符文本的字体大小增加你的名字，并且它应该有一个左边的填充.

I want the font size of the placeholder text to increase your name, and it should have a Left padding to it.

推荐答案

您可以子类化 UITextFiled 并覆盖方法:

You could subclass your UITextFiled and override methods:

MyTextField.m

- (CGRect)textRectForBounds:(CGRect)bounds {
    return [self rectForBounds:bounds];
}

- (CGRect)editingRectForBounds:(CGRect)bounds {
    return [self rectForBounds:bounds];
}

- (CGRect)placeholderRectForBounds:(CGRect)bounds {
    return [self rectForBounds:bounds];
}

//here 40 - is your x offset
- (CGRect)rectForBounds:(CGRect)bounds {
    return CGRectInset(bounds, 40, 3);
}

更新:也设置

textFiled.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;

因为 io6 与 ios 7 垂直定位可能存在一些问题

because it could some problems with io6 vs ios 7 vertical positionning

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