iOS keyboard Related settings (Uitextfield)

http://blog.csdn.net/h3c4lenovo/article/details/8447661

First, the keyboard style

The Uikit Framework supports 8 styles of keyboards.

2. typedef ENUM {
4. Uikeyboardtypedefault,//default keyboard: All characters supported
6. Uikeyboardtypeasciicapable,//ASCII-enabled default keyboard
8. Uikeyboardtypenumbersandpunctuation,//Standard telephone keypad, supports +* #等符号
10. Uikeyboardtypeurl,//URL keyboard with. com button; URL characters only
12. Uikeyboardtypenumberpad,//numeric keypad
14. Uikeyboardtypephonepad,//Telephone keypad
16. Uikeyboardtypenamephonepad,//telephone keypad, also support input person name
18. Uikeyboardtypeemailaddress,//keyboard for entering e-mail addresses
20. } Uikeyboardtype;

Usage Use cases:

Textview.keyboardtype= Uikeyboardtypenumberpad;

Second, keyboard appearance

1. typedef ENUM {
2. Uikeyboardappearancedefault,//default appearance: Light grey
3. Uikeyboardappearancealert,//dark grey/Graphite
4. } uikeyboardappearance;

Usage Use cases:

Textview.keyboardappearance=uikeyboardappearancedefault;

Third, enter

2. typedef enum  {  
4. Uireturnkeydefault,//default: Gray button, marked with return
6. Uireturnkeygo,//blue button labeled Go
8. Uireturnkeygoogle,//blue button labeled Google for search
10. Uireturnkeyjoin,//blue button labeled Join
12. Uireturnkeynext,//blue button labeled Next
14. Uireturnkeyroute,//blue button labeled route
16. Uireturnkeysearch,//blue button labeled Search
18. Uireturnkeysend,//blue button labeled Send
20. Uireturnkeyyahoo,//blue button labeled Yahoo! for searching
22. Uireturnkeydone,//blue button labeled done
24. Uireturnkeyemergencycall,//Emergency call button
26. } Uireturnkeytype;

Usage Use cases:

Textview.returnkeytype=uireturnkeygo;

Four, automatic capitalization

1. typedef ENUM {
2. Uitextautocapitalizationtypenone,//not automatically capitalized
3. Uitextautocapitalizationtypewords,//capitalize the first letter of the word
4. Uitextautocapitalizationtypesentences,//capitalize the first letter of the sentence
5. Uitextautocapitalizationtypeallcharacters,//All letters capitalized
6. } Uitextautocapitalizationtype;

Usage Use cases:

Textfield.autocapitalizationtype  =  Uitextautocapitalizationtypewords ;

Five, automatic correction

1. typedef ENUM {
2. uitextautocorrectiontypedefault,//Default
3. uitextautocorrectiontypeno,//does not automatically correct
4. uitextautocorrectiontypeyes,//Auto Correction
5. } Uitextautocorrectiontype;

Usage Use cases:

Textfield.autocorrectiontype = Uitextautocorrectiontypeyes;

Six, secure text input

Textview.securetextentry=yes;

Turning on secure input is primarily for passwords or some private data input, which disables AutoCorrect and self-caching.

Statistic character and response return key

Statistical characters:

1, Uitextview

-(void) Textviewdidchange: (Uitextview *) textview{    int count = [Textview.text length];    Count here is the number of characters}

2, Uitextfield

Method One:

Add a response method for Uitextfield's editing changed event first

-(Ibaction) Valuechange//m_textfield is a iboutlet{     int count = [M_textfield.text length] of Uitextfield;     Count is the current number of characters    //The bottom is to limit the characters within 140    if ([M_textfield.text length]>140) {        [M_textfield settext:[m_ Textfield.text substringtoindex:140]];//140, fetch only the first 140 characters    }}

Method Two:

In the Proxy method:-(BOOL) TextField: (Uitextfield *) Textfieldshouldchangecharactersinrange: (Nsrange) Rangereplacementstring: (nsstring*) string, judging the value of range.length to determine whether the input is a back lattice or other characters

Response Return key :

1, Uitextview

Proxy method

-(BOOL) TextView: (Uitextview *) TextView Shouldchangetextinrange: (nsrange) Range Replacementtext: (NSString *) text{    if (1 = = Range.length) {//press the next SPACEBAR to        return YES;    }    if ([text isequaltostring:@ "\ n"]) {//press the RETURN key//        hide the keyboard here, do not do any processing        [TextView Resignfirstresponder];        return NO;    } else {        if ([Textview.text length] < 140) {//To determine the number of characters            return YES;}      }    return NO;}

2, Uitextfield

This is a direct proxy method, huh?

-(BOOL) Textfieldshouldreturn: (Uitextfield *) TextField

Uitextfield Enter edit state to get focus Becomefirstresponder

Turn off keyboard resignfirstresponder