Padding Placeholder text ios

问题

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];

UPDATE

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

回答1:

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);
}

upd: also set

textFiled.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter;

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

回答2:

Same question was being asked and answered as below Set padding for UITextField with UITextBorderStyleNone

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

回答3:

You can set the starting text alignment (of the textField from xib or via code) to be center aligned.
Then in the -textFieldShouldBeginEditing, you can set the textField to be left aligned.
Similarly, on the -textFieldDidEndEditing, check if the textField is empty and if it is then set textField back to center aligned.

basically:

-(BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
    [textField setTextAlignment:NSTextAlignmentLeft];
    return YES;
}

-(void)textFieldDidEndEditing:(UITextField *)textField
{
    if(textField.text.length == 0) {
        [textField setTextAlignment:NSTextAlignmentCenter];
    }
}

EDIT::

the .h of your ViewController class should look like:

@interface ViewController : UIViewController <UITextFieldDelegate> 
{
    UITextField *myTextField;
}

now, replace your other code with this:

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

myTextField.placeholder=@"iiiiiii";

//important
[myTextField setDelegate: self];

//commented lines not really needed
//UIView *padView = [[UIView alloc] initWithFrame:CGRectMake(10, 110, 10, 0)];
//textField.leftView = padView;
//textField.leftViewMode = UITextFieldViewModeAlways;

[self.view addSubview:textField];

回答4:

sampleTextfield.leftView = UIView(frame: CGRectMake(0, 0, 20, self.sampleTextfield.frame.height))
sampleTextfield.leftViewMode = UITextFieldViewMode.Always

回答5:

The easiest way that I found to do this task on swift 2 and Xcode 7:

import UIKit

class ViewController: UIViewController {

    @IBOutlet weak var emailTextField: UITextField!

    override func viewDidLoad() {
        super.viewDidLoad()

        let paddingView = UIView(frame: CGRectMake(0, 0, 25, self.emailTextField.frame.height))
        emailTextField.leftView = paddingView
        emailTextField.leftViewMode = UITextFieldViewMode.Always
    }
}

回答6:

func placeholderPadding(textField:UITextField, leftPadding:CGFloat) {
            textField.leftView = UIView(frame: CGRect(x: 0.0, y: 0.0, width: leftPadding, height: textField.frame.height))
            textField.leftViewMode = UITextFieldViewMode.always
        }

回答7:

While I have not specifically tested it, this should work:

self.YourTextField.attributedPlaceholder = NSAttributedString(string: "    YourText")

Add the amount of blank spaces (padding) to your string

回答8:

Just hit the space key a few times to pad the placeholder text from the left.

  text

versus

text

来源：https://stackoverflow.com/questions/20425281/padding-placeholder-text-ios

标签

ios

uitextfield