IOS Toggle Keyboard

1. Click the Toolbar plus button to toggle the keyboard

After switching before switching

2 to achieve the above effect 2.1 need to listen to the keyboard pop \ Hide

[[Nsnotificationcenter Defaultcenter] addobserver:self selector: @selector (keyboardwillshow:) Name: Uikeyboardwillshownotification Object:nil];

[[Nsnotificationcenter Defaultcenter] addobserver:self selector: @selector (keyboardwillhide:) Name: Uikeyboardwillhidenotification Object:nil];

1 /**2 * Keyboard is about to be hidden3  */4- (void) Keyboardwillhide: (Nsnotification *) Note5 {6     //1. Time required for keyboard popup7CGFloat Duration =[Note.userinfo[uikeyboardanimationdurationuserinfokey] doublevalue];8     //2. Animations9[UIView animatewithduration:duration animations:^{TenSelf.toolbar.transform =cgaffinetransformidentity; One     }]; A}

1 /**2 * Keyboard is about to pop up3  */4- (void) Keyboardwillshow: (Nsnotification *) Note5 {6     //1. Time required for keyboard popup7CGFloat Duration =[Note.userinfo[uikeyboardanimationdurationuserinfokey] doublevalue];8     //2. Animations9[UIView animatewithduration:duration animations:^{Ten         //Remove the keyboard height OneCGRect KEYBOARDF =[Note.userinfo[uikeyboardframeenduserinfokey] cgrectvalue]; ACGFloat Keyboardh =KeyboardF.size.height; -Self.toolbar.transform = Cgaffinetransformmaketranslation (0, -Keyboardh); -     }]; the}

Lazy Loading method of 2.2 toolbar

1-(Uitoolbar *) toolbar{2     if(_toolbar = =Nil) {3_toolbar =[[Uitoolbar alloc]init];4_toolbar.frame = CGRectMake (0, ScreenHeight-ktoolbarheight, ScreenWidth, ktoolbarheight);5 [Self.view Addsubview:_toolbar];6         7         //Toggle the keyboard button8UIButton *changekeybord =[UIButton Buttonwithtype:uibuttontypecontactadd];9 [_toolbar Addsubview:changekeybord];Ten  One [Changekeybord addtarget:self Action: @selector (Changekeybord) Forcontrolevents:uicontroleventtouchdown]; A     } -     return_toolbar; -}

2.3 Implementing the Changekeybord method

1- (void) Changekeybord2 {3     if(Self.mytext.inputView) { //inputview exists then the custom keyboard 4Self.mytext.inputView =Nil; //Clear the custom keyboard, then change back to the system keyboard 5}Else{ //Conversely, Inputview does not exist, it indicates that the system keyboard is currently displayed 6UIView *newkeybord =[[UIView alloc]init]; //instantiation of a new keyboard 7Newkeybord.bounds = CGRectMake (0,0, the,216);8Newkeybord.backgroundcolor =[Uicolor Yellowcolor];9Self.mytext.inputView =Newkeybord; //Assign a new keyboard to Inputview Ten     } One  A     //The following sentence can not be saved, because after switching the keyboard, only the first hidden and then eject, will bring up the new keyboard - [Self.mytext Resignfirstresponder]; -     //In order to make the keyboard switch interactive effect smoother, increase the delay, if not increase the delay, will appear: The old keyboard has not been completely hidden, the new keyboard has been ejected theDispatch_after ((uint64_t)3.0, Dispatch_get_main_queue (), ^{ - [Self.mytext Becomefirstresponder]; -     }); -      +}

2.4 Customizing a new keyboard

Not to be continued

IOS Toggle Keyboard