Two types of custom system pop-up view above the keyboard

We may encounter this in many applications. In the view above the pop-up keyboard, add some controls for auxiliary functions. Below I will introduce them in two cases:

// The physical height of the screen # define screenheight [uiscreen mainscreen]. bounds. size. height // The physical width of the screen # define screenwidth [uiscreen mainscreen]. bounds. size. width @ interface hmtmainviewcontroller () @ property (nonatomic, strong) uiview * testview; @ property (nonatomic, strong) uitextfield * testtextfield; @ property (nonatomic, strong) nsnumber * duration; @ property (nonatomic, strong) nsnumber * curve; @ end @ implementation hmtmainviewcontroller-(ID) initwithnibname :( nsstring *) bundle :( nsbundle *) Detail {self = [Super initwithnibname: nibnameornil Bundle: nibbundleornil]; If (Self) {// custom initialization} return self;}-(void) viewdidload {[Super viewdidload]; // do any additional setup after loading the view. self. navigationitem. title = @ "Demo"; [self testcustonkeyboardview ___ 1]; [self testcustonkeyboardview ___ 2];} // view above the keyboard displayed on the custom system ---> General situation-(void) testcustonkeyboardview ___ 1 {uitextfield * testtextfield = [[uitextfield alloc] initwithframe: cgrectmake (60,200,200, 40)]; testtextfield. borderstyle = uitextborderstyleroundedrect; [self. view addsubview: testtextfield]; // custom view uiview * customview = [[uiview alloc] initwithframe: cgrectmake (0, 0,320, 40)]; customview. backgroundcolor = [uicolor redcolor]; testtextfield. inputaccessoryview = customview; // Add various UI controls to the custom view (taking uibutton as an example) uibutton * button = [[uibutton alloc] initwithframe: cgrectmake (270, 5, 40, 30)]; button. backgroundcolor = [uicolor blackcolor]; [Button settitle: @ "for" forstate: uicontrolstatenormal]; [Button addtarget: Self action: @ selector (didclickbuttonaction) forcontrolevents: uicontroleventtouchupinside]; [customview addsubview: button] ;}- (void) didclickbuttonaction {nslog (@ "% s __% D __|%@" ,__ function __,__ line __, @ "test"); [self. view endediting: Yes];} // view on the top of the keyboard displayed on the custom system, QQ chat, and other effects-(void) testcustonkeyboardview ___ 2 {self. testview = [[uiview alloc] initwithframe: cgrectmake (0, screenheight-40,320, 40)]; _ testview. backgroundcolor = [uicolor graycolor]; [self. view addsubview: _ testview]; self. testtextfield = [[uitextfield alloc] initwithframe: cgrectmake (40, 2,200, 36)]; _ testtextfield. borderstyle = uitextborderstyleroundedrect; [_ testview addsubview: _ testtextfield]; uibutton * leftbtn = [uibutton buttonwithtype: uibuttontypesystem]; leftbtn. frame = cgrectmake (242, 2, 36, 36); [leftbtn settitle: @ "-" forstate: uicontrolstatenormal]; leftbtn. titlelabel. font = [uifont systemfontofsize: 28.0]; [_ testview addsubview: leftbtn]; uibutton * rightbtn = [uibutton buttonwithtype: uibuttontypesystem]; rightbtn. frame = cgrectmake (282, 2, 36, 36); rightbtn. titlelabel. font = [uifont systemfontofsize: 28.0]; [rightbtn settitle: @ "+" forstate: uicontrolstatenormal]; [_ testview addsubview: rightbtn]; // notification-Listen to the keyboard pop-up event [[nsnotificationcenter defacenter center] addobserver: Self selector: @ selector (changekeyboardwillshownotification :) name: uikeyboardwillshownotification object: Nil]; // notification-Listen to the keyboard reclaim event [[nsnotifcenter center defacenter center] addobserver: Self selector: @ selector (changekeyboardwillhidenotification :) name: uikeyboardwillhidenotification object: Nil];}-(void) changekeyboardwillshownotification :( nsnotification *) Notification {nsdictionary * userinfo = [Notification userinfo]; // struct object nsvalue * valueendframe = [userinfo objectforkey: uikeyboardframeenduserinfokey] of the frame after the keyboard pops up; // obtain the Y coordinate cgfloat keyboardendy = valueendframe where the keyboard view is displayed. cgrectvalue. origin. y; // animation time displayed on the keyboard self. duration = [userinfo objectforkey: uikeyboardanimationdurationuserinfokey]; // animation curve self displayed on the keyboard. curve = [userinfo objectforkey: uikeyboardanimationcurveuserinfokey]; // Add a mobile animation to move the view following the keyboard (the animation time and curve are consistent) [uiview animatewithduration: [_ duration doublevalue] animations: ^ {[uiview setanimationbeginsfromcurrentstate: Yes]; // if this parameter is not set, you can see the difference [uiview setanimationcurve: [_ curve intvalue]; _ testview. center = cgpointmake (_ testview. center. x, keyboardendy-_ testview. bounds. size. height/2.0) ;}];/*** + (void) setanimationcurve :( uiviewanimationcurve) curve; * typedef ns_enum (nsinteger, uiviewanimationcurve) {* Fade, // fade in and out, slow at the beginning, from slow to fast, the fastest in the middle, and then slow down * uiviewanimationcurveeasein, // fade in, start slowly and then get faster and faster * uiviewanimationcurveeaseout, // fade out, start fast and then get slower * uiviewanimationcurvelinear // linear speed, start and end is a speed *}; */}-(void) changekeyboardwillhidenotification :( nsnotification *) notification {nsdictionary * userinfo = [Notification userinfo]; // struct object nsvalue * valuestatrframe = [userinfo objectforkey: uikeyboardframeenduserinfokey] of the frame before the keyboard pop-up; // obtain the Y coordinate cgfloat keyboardstatry = valuestatrframe of the keyboard view displayed. cgrectvalue. origin. y; [uiview animatewithduration: [_ duration doublevalue] animations: ^ {[uiview setanimationbeginsfromcurrentstate: Yes]; [uiview setanimation curve: [_ curve intvalue]; _ testview. center = cgpointmake (_ testview. center. x, keyboardstatry-_ testview. bounds. size. height/2.0) ;}] ;}- (void) touchesbegan :( nsset *) touches withevent :( uievent *) event {[self. view endediting: Yes];}

@ Example: