Uitextfield of iOS Learning UI

<span id="Label3"></p><p>Uitextfield->uicontrol->uiview<br>Common Properties<br>1. Convert picture objects to color objects<br>Textfield.backgroundcolor = [uicolor colorwithpatternimage:[uiimage imagenamed:@ "DOVE 1"]];<br>2.borderStyle border Style<br>Textfield.borderstyle = uitextborderstylenone;<br>3.contentVerticalAlignment Text Vertical Direction<br>Textfield.contentverticalalignment = uicontrolcontentverticalalignmentcenter;<br>4.adjustsFontSizeToFitWidth Adaptive Text Size<br>Textfield.adjustsfontsizetofitwidth = YES;<br>5.minimumFontSize Minimum Font<br>Textfield.minimumfontsize = 18;<br>6.keyboardAppearance Keyboard appearance<br>Textfield.keyboardappearance = uikeyboardappearancedark;<br>7.keyboardType keyboard Style<br>Textfield.keyboardtype = uikeyboardtypedefault;<br>8.textColor text color<br>Textfield.textcolor = [uicolor purplecolor];<br>9.returnKeyType return key Style<br>Textfield.returnkeytype = uireturnkeygo;<br>10.autocapitalizationType Letter Capitalization Style<br>Textfield.autocapitalizationtype =uitextautocapitalizationtypeallcharacters;<br>11.autocorrectionType Automatic error correction<br>Textfield.autocorrectiontype = NO;<br>12.placeholder hint Text<br>Textfield.placeholder = @ "dragon slayer blades, click on send";<br>13.secureTextEntry whether the ciphertext display<br>Textfield.securetextentry = YES;<br>14.clearButtonMode One-click Delete Mode<br>Textfield.clearbuttonmode = uitextfieldviewmodewhileediting;<br>15.clearsOnBeginEditing re-editing is cleared<br>textfield.clearsonbeginediting = YES;<br>16.leftView left View<br>Textfield.leftview = view;<br>17.leftViewMode Left view mode<br>Textfield.leftviewmode = uitextfieldviewmodealways;<br>18.rightView Right View<br>19.rightViewMode Right view mode<br>The view above the 20.inputAccessoryView keyboard<br>21.inputView keyboard Style<br>Agent for 22.textfield<br>/**<br>* Whether the input box can start entering text<br>*<br>* @param TextField<br>*<br>* @return no means no input, yes indicates you can enter<br>*/<br>-(BOOL) textfieldshouldbeginediting: (uitextfield *) textfield{<br>NSLog (@ "%s",<strong><strong>func</strong></strong>);<br>Return YES;</p><p>}//return NO to disallow Editing.<br>/**<br>* The input box starts responding and executes<br>*<br>* @param TextField<br>*/<br>-(void) textfielddidbeginediting: (uitextfield *) textfield{<br>NSLog (@ "%s",<strong><strong>func</strong></strong>);<br>}//became First Responder<br>Whether the input box can end the input text<br>-(BOOL) textfieldshouldendediting: (uitextfield *) textfield{<br>If (textField.text.length!=2) {<br>Return NO;<br>// }<br>NSLog (@ "%s",<strong><strong>func</strong></strong>);<br>Return YES;<br>}//return YES to allow editing to stop and to resign first responder Status. NO to disallow the editing session to end<br>/**<br>* Input box end response is executed<br>*<br>* @param TextField<br>*/<br>-(void) textfielddidendediting: (uitextfield *) textfield{<br>NSLog (@ "%s",<strong><strong>func</strong></strong>);<br>}//may is called if forced even if shouldendediting returns NO (E.G. view removed from Window) or endediting:yes called<br>//<br>/**<br>* The method to execute if the text of the input box changes<br>*<br>* @param TextField<br>* @param range<br>* @param string<br>*<br>* @return<br>*/<br>-(BOOL) textField: (uitextfield<em><em>) TextField shouldchangecharactersinrange: (nsrange) range replacementstring: (nsstring</em></em>) string{</p><pre><pre><code>NSLog(@"%ld %ld",range.length,range.location);NSLog(@"%@",string);return YES;</code></pre></pre><p><p>}//return NO to the change text<br>/**<br>* One-click Delete<br>*<br>* @param TextField<br>*<br>* @return No means delete is invalid<br>*/<br>-(BOOL) textfieldshouldclear: (uitextfield *) textfield{<br>If ([textfield.text isequaltostring:@ "123"]) {<br>Return NO;<br>}<br>NSLog (@ "%s",<strong>func</strong>);<br>Return YES;<br>}//called when Clear button Pressed. Return no to ignore (no NOTIFICATIONS)<br>/**<br>* Textfieldshouldreturn<br>*<br>* @param TextField an incoming keyboard<br>*<br>* @return<br>*/<br>-(BOOL) textfieldshouldreturn: (uitextfield *) textfield{<br>Retract keyboard: cursor disappears input box loses first response<br>[textField resignfirstresponder];<br>NSLog (@ "%s",<strong>func</strong>);<br>Return YES;<br>}//called when ' return ' key Pressed. return NO to Ignore.</p></p> <p><p>Uitextfield of iOS Learning UI</p></p></span>