Use of Urtext

• Uitextfield is Uicontrol subclass, Uicontrol is also UIView subclass, so is a view, but more than UIView two functions, 1. Text display, 2. Editing

  The use of the process is in four steps:

  1. Create an Object

  2. Configuration Properties

  3 Add to Parent view

  4. Release of ownership

  1. Create an Object

  Uitextfield *text = [[Uitextfield alloc] Initwithframe:cgrectmake (50, 50, 180, 50)]; Text.backgroundcolor = [Uicolor Yellowcolor]; [_view Addsubview:text]; [Text release];

  2. Set the text border style (fillet)

  Text.borderstyle = Uitextborderstyleroundedrect;

  3. Set text default display text (but not as part of text content)

  Text.placeholder = @ "Please enter user name";

  4. Set text text

  Text.text = @ "What tattered";

  5. Set the text color
  

  Text.textcolor = [Uicolor blackcolor];

  6. Set the alignment of text

  Text.textalignment = Nstextalignmentcenter;

  7. Set Text font

  Text.font = [Uifont systemfontofsize:18];

  8. Set whether the input box can be edited

  text.enabled = YES;

  9. Set whether to clear the contents of the box when you start editing

  text.clearsonbeginediting = YES;

  10. Set the password format (the contents of the input box are displayed as dots)

  Text.securetextentry = YES;

  11. Set the style of the pop-up keyboard (numeric keypad)

  Text.keyboardtype = Uikeyboardtypenumberpad;

  12. Lower right corner of keyboard display style

  Text.returnkeytype = Uireturnkeygo;

  
  13. Set the Tag value
  Text.tag = 120;
  

  14. Keyboard Recycling

  
  1. Click on the lower right corner or enter to recycle the keyboard
  1. Setting up the agent
  Text.delegate = self;
  
  2. Compliance with the agreement
  Add the protocol in the corresponding. h file, such as
  @interface Mayappdelegate:uiresponder <UIApplicationDelegate,UITextFieldDelegate>
  Obey the,<uitextfielddelegate> agreement
  
  3. Implementing the methods in the Protocol
  -(BOOL) Textfieldshouldreturn: (Uitextfield *) TextField
  

  {

  Recycle keyboard, cancel first responder

  [TextField Resignfirstresponder]; return YES;

  }

  2. Click the empty space to recycle the keyboard
  1. Setting up the agent
  Text.delegate = self;
  
  2. Compliance with the agreement
  Add the protocol in the corresponding. h file, as
  @interface Mayappdelegate:uiresponder <UIApplicationDelegate,UITextFieldDelegate>
  Obey the,<uitextfielddelegate> agreement
  
  3. Implementing the methods in the Protocol
  

  -(void) touchesended: (Nsset *) touches withevent: (Uievent *) Event {

  [Text Resignfirstresponder];

  }

Use of Urtext