Summary of common UI Methods --- UILabel UITextField (continuously updating) and uilabeluitextfield

Summary of common UI Methods --- UILabel UITextField (continuously updating) and uilabeluitextfield

UILabel: UIView <NSCoding>

1. Create a UILabel object

UILabel * label = [[UILabelalloc] initWithFrame: CGRectMake (30,30, 280,60)];

2. backgroundColor

Background Color

3. text

Displayed text information

Eg: label. text = @ "displayed text ";

4. textColor

Text color

Eg: label. textColor = [UIColoryellowColor];

5. shadowColor

Text shadow color

Eg: label. shadowColor = [UIColorblueColor];

6. shadowOffset

Text shadow offset

Eg: label. shadowOffset = CGSizeMake (3, 3 );

7. textAlignment

Text format processing (alignment)

Eg: label. textAlignment = NSTextAlignmentCenter;

8. lineBreakMode

When the text is too long, the label displays the broken line mode.

Eg: label. lineBreakMode = NSLineBreakByTruncatingHead;

9. numberOfLines

Control the number of lines displayed by the label

Eg: label. numberOfLines = 0;

10. font

Font size: default font size: 17

Eg: label. font = [UIFontsystemFontOfSize: 20];

UITextField: UIControl <UITextInput, NSCoding>

1. Create a UITextField object

UITextField * name = [[UITextFieldalloc] initWithFrame: CGRectMake (30,100,280, 30)];

2. placeholder

The default placeholder string is automatically hidden once input.

Eg: name. placeholder = @ "Enter here ";

3. secureTextEntry

Input to Black Point

Eg: name. secureTextEntry = YES;

4. keyboardType

Change the keyboard type

Name. keyboardType = UIKeyboardTypeASCIICapable;

5. borderStyle

Appearance Control

Name. borderStyle = UITextBorderStyleRoundedRect;

6. clearButtonMode

Clear button

Name. clearButtonMode = UITextFieldViewModeWhileEditing;

7. backgroundColor

Background Color

8. Reclaim the keyboard

[TextField resignFirstResponder];

9.-(BOOL) textFieldShouldBeginEditing :( UITextField *) textField;

// Whether input is allowed

10.-(BOOL) textField :( UITextField *) textField shouldChangeCharactersInRange :( nsange) range replacementString :( NSString *) string;

// Restrict input characters

Eg: if ([stringisEqualToString: @ "a"]) {

ReturnNO;

}

NSLog (@ "% @", string );

ReturnYES;

11.-(BOOL) textFieldShouldReturn :( UITextField *) textField;

// Return button call Method

What is the difference between UITextField UILabel in IOS? UITextField inherits UIControl UILabel and UIView;

UITextField can be edited and input, but UILabel cannot. When UITextField is input, a proxy responds to the operation.
I do not particularly understand what you compare them with and where you want to use them. I have a premise that you can only understand what you said.