IOS questions about the keyboard masking editing area (uitextfiled/uitextview)

<span id="Label3"></p><p><p>Reference from: http://blog.csdn.net/windkisshao/article/details/21398521</p></p><p><p>1. Custom Methods for moving views</p></p><p><p>-(void) moveinputbarwithkeyboardheight: (float) _cgrectheight withduration: (nstimeinterval) _nstimeinterval;</p></p><p><p>2. Register for monitoring</p></p><p><p>Nsnotificationcenter *defaultcenter = [nsnotificationcenter defaultcenter];</p></p><p><p>[defaultcenter selector: @selector (keyboardwillshow:) name:uikeyboardwillshownotification object:nil];</p></p><p><p>[defaultcenter addobserver:self selector: @selector (keyboardwillhide:) name:uikeyboardwillhidenotification object: nil];</p></p><p><p>3. Implementation methods</p></p><p><p>-(void) keyboardwillshow: (nsnotification *) Notification {</p></p><p><p>Nsdictionary *userinfo = [notification userInfo];</p></p><p><p>nsvalue* avalue = [userInfo objectforkey:uikeyboardframeenduserinfokey];</p></p><p><p>CGRect keyboardrect = [avalue cgrectvalue];</p></p><p><p>Nsvalue *animationdurationvalue = [userInfo objectforkey:uikeyboardanimationdurationuserinfokey];</p></p><p><p>Nstimeinterval animationduration;</p></p><p><p>[animationdurationvalue getvalue:&animationduration];</p></p><p><p>If (nil==self.mytextview) Return;//self.edittextview is a control that is obscured by the keyboard</p></p><p><p>CGRect rect = self.myTextView.frame;</p></p><p><p>float texty = rect.origin.y + rect.size.height;</p></p><p><p>float bottomy = screenheight-texty;//gets The bottom border to the bottom of the distance screenheight is the height of the current device</p></p><p><p>If (bottomy >=keyboardrect.size.height) {//keyboard default height, if greater than this height, return directly</p></p><p><p>Return</p></p><p><p>}</p></p><p><p>float Movey = keyboardrect.size.height-bottomy;</p></p><p><p>[self Moveinputbarwithkeyboardheight:movey withduration:animationduration];</p></p><p><p>}</p></p><p><p></p></p><p><p>-(void) keyboardwillhide: (nsnotification *) Notification {</p></p><p><p>nsdictionary* UserInfo = [notification userInfo];</p></p><p><p>Nsvalue *animationdurationvalue = [userInfo objectforkey:uikeyboardanimationdurationuserinfokey];</p></p><p><p>Nstimeinterval animationduration;</p></p><p><p>[animationdurationvalue getvalue:&animationduration];</p></p><p><p>[self moveinputbarwithkeyboardheight:0.0 withduration:animationduration];</p></p><p><p>}</p></p><p><p></p></p><p><p>-(void) moveinputbarwithkeyboardheight: (float) _cgrectheight withduration: (nstimeinterval) _nstimeinterval{</p></p><p><p>CGRect rect1 = self.view.frame;</p></p><p><p>[UIView Beginanimations:nil context:null];</p></p><p><p>[UIView setanimationduration:_nstimeinterval];</p></p><p><p>RECT1.ORIGIN.Y =-_cgrectheight;//view Upward Movement</p></p><p><p>Self.view.frame = rect1;</p></p><p><p>[UIView commitanimations];</p></p><p><p>}</p></p><p><p>Test is used 4s real machine test, everything is perfect, but a few days ago colleagues with 6 test when found a problem, that is, when the editor can achieve the effect of the control, but found that the input of Chinese sometimes inexplicable can not knock out the chinese, there will be a series of characters, and delete when the character is deleted, Almost the more the more the Deletion. but the 4S has been tested many times without this problem. these days have been thinking about what caused this problem, looking to know the high people, pointing twos. thank you! (with the Uitextview)</p></p><p><p></p></p><p><p>IOS questions about the keyboard masking editing area (uitextfiled/uitextview)</p></p></span>