Uitextfield common attributes and keyboard for uitextfield Revocation

Uitextfield is a subclass of uicontrol, and uicontrol is a subclass of uiview, so it is also a view, but there are two more functions than uiview, 1. text display, 2. text editing

The procedure is as follows:

1. Create an object

2. Configure attributes

3 add to parent View

4. Release ownership

1. Create an object

Uitextfield * text = [[uitextfieldalloc] initwithframe: cgrectmake (,)]; text. backgroundcolor = [uicoloryellowcolor]; [_ viewaddsubview: text]; [textrelease];

2. Set the border style (rounded corner) of Text)

Text. borderstyle = uitextborderstyleroundedrect;

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

Text. placeholder = @ "Enter the user name ";

4. Set text

Text. Text = @ "What is broken ";

5. set text color

Text. textcolor = [uicolorblackcolor];

6. set text alignment

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 content in the box when editing starts.

Text. clearsonbeginediting = yes;

10. Set the password format (whether the content in the input box is displayed as a dot)

Text. securetextentry = yes;

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

Text. keyboardtype = uikeyboardtypenumberpad;

12. display style in the lower right corner of the keyboard

Text. returnkeytype = uireturnkeygo;

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

14. keyboard recycling

1. Click the lower right corner or press enter to recycle the keyboard.
1. Set proxy
Text. Delegate = self;

2. Obey the agreement
Add the protocol to the corresponding. h file, as shown in figure
@ Interface mayappdelegate: uiresponder <uiapplicationdelegate, uitextfielddelegate>
Obey, <uitextfielddelegate> Protocol

3. Methods in the Implementation Protocol
-(Bool) textfieldshouldreturn :( uitextfield *) textfield

{

Reclaim the keyboard and cancel the first responder

[Textfield resignfirstresponder]; returnyes;

}

2. Click the blank space to clear the keyboard
1. Set proxy
Text. Delegate = self;

2. Obey the agreement
Add the protocol to the corresponding. h file, as shown in figure
@ Interface mayappdelegate: uiresponder <uiapplicationdelegate, uitextfielddelegate>
Obey, <uitextfielddelegate> Protocol

3. Methods in the Implementation Protocol

-(Void) touchesended :( nsset *) touches withevent :( uievent *) event {

[Text resignfirstresponder];

}

Uitextfield common attributes and keyboard for uitextfield Revocation