ios - Not able to use UIView in NSObject Xcode -

#import <foundation/foundation.h>  typedef enum _nsbubbletype { bubbletypemine = 0, bubbletypesomeoneelse = 1 } nsbubbletype;  @interface nsbubbledata : nsobject  @property (readonly, nonatomic, strong) nsdate *date; @property (readonly, nonatomic) nsbubbletype type; @property (readonly, nonatomic, strong) uiview *view; @property (readonly, nonatomic) uiedgeinsets insets; @property (nonatomic, strong) uiimage *avatar;  - (id)initwithtext:(nsstring *)text date:(nsdate *)date type:      (nsbubbletype)type; + (id)datawithtext:(nsstring *)text date:(nsdate *)date type:(nsbubbletype)type; - (id)initwithimage:(uiimage *)image date:(nsdate *)date type:(nsbubbletype)type; + (id)datawithimage:(uiimage *)image date:(nsdate *)date type: (nsbubbletype)type; - (id)initwithview:(uiview *)view date:(nsdate *)date type:(nsbubbletype)type insets:(uiedgeinsets)insets; + (id)datawithview:(uiview *)view date:(nsdate *)date type:(nsbubbletype)type insets:(uiedgeinsets)insets; 

below object , .m class #import "nsbubble.h" #import

@implementation nsbubble  @synthesize datee,vieww,insetss,typee;  #pragma mark - text bubble  const uiedgeinsets textinsetsmine = {5, 10, 11, 17}; const uiedgeinsets textinsetssomeone = {5, 15, 11, 10};  + (id)datawithtext:(nsstring *)text date:(nsdate *)date type:(nsbubbletype)type {     return [[nsbubble alloc] initwithtext:text date:date type:type]; }  - (id)initwithtext:(nsstring *)text date:(nsdate *)date type:(nsbubbletype)type { uifont *font = [uifont systemfontofsize:[uifont systemfontsize]]; cgsize size = [(text ? text : @"") sizewithfont:font constrainedtosize:cgsizemake(220, 9999) linebreakmode:nslinebreakbywordwrapping];  uilabel *label = [[uilabel alloc] initwithframe:cgrectmake(0, 0, size.width, size.height)]; label.numberoflines = 0; label.linebreakmode = nslinebreakbywordwrapping; label.text = (text ? text : @""); label.font = font; label.backgroundcolor = [uicolor clearcolor];  uiedgeinsets insets = (type == bubbletypemine ? textinsetsmine : textinsetssomeone); return [self initwithview:label date:date type:type insets:insets]; }   #pragma mark - custom view bubble  + (id)datawithview:(uiview *)view date:(nsdate *)date type:(nsbubbletype)type insets:(uiedgeinsets)insets { return [[nsbubble alloc] initwithview:view date:date type:type insets:insets]; }  - (id)initwithview:(uiview *)view date:(nsdate *)date type:(nsbubbletype)type insets:(uiedgeinsets)insets { self = [super init]; if (self) {      vieww = view;     datee = date;      typee = type;     insetss = insets; } return self; }   @end 

this table view

#import <uikit/uikit.h>  #import "headerdatasource.h" #import "nsbubbletblcell.h"  @interface nsbubbletblview : uitableview      <uitableviewdatasource,uitableviewdelegate>  @property (nonatomic, assign) iboutlet  id<uibubbletableviewdatasource> bubbledatasource; @property (nonatomic) nstimeinterval snapinterval;  - (void) scrollbubbleviewtobottomanimated:(bool)animated; 

this .m

#import "nsbubbletblview.h" #import "nsbubble.h" #import "nsbubbletblheadercell.h"  @interface nsbubbletblview ()  @property (nonatomic, retain) nsmutablearray *bubblesection;  @end  @implementation nsbubbletblview  @synthesize datasource,snapinterval,bubblesection;  #pragma mark - initializators  - (void)initializator { // uitableview properties  self.backgroundcolor = [uicolor clearcolor]; self.separatorstyle = uitableviewcellseparatorstylenone; assert(self.style == uitableviewstyleplain);  self.delegate = self; self.datasource = self;  // uibubbletableview default properties  self.snapinterval = 120;  }  - (id)init { self = [super init]; if (self) [self initializator]; return self; }  - (id)initwithcoder:(nscoder *)adecoder { self = [super initwithcoder:adecoder]; if (self) [self initializator]; return self; }  - (id)initwithframe:(cgrect)frame { self = [super initwithframe:frame]; if (self) [self initializator]; return self; }  - (id)initwithframe:(cgrect)frame style:(uitableviewstyle)style { self = [super initwithframe:frame style:uitableviewstyleplain]; if (self) [self initializator]; return self; }  #pragma mark - override  - (void)reloaddata { self.showsverticalscrollindicator = no; self.showshorizontalscrollindicator = no; nslog(@"%@",bubblesection); // cleaning self.bubblesection = nil;  // loading new data int count = 0; self.bubblesection = [[nsmutablearray alloc] init];  if (self.bubbledatasource && (count = [self.bubbledatasource rowsforbubbletable:self]) > 0) {     nsmutablearray *bubbledata = [[nsmutablearray alloc] initwithcapacity:count];      (int = 0; < count; i++)     {         nsobject *object = [self.bubbledatasource bubbletableview:self dataforrow:i];         assert([object iskindofclass:[nsbubble class]]);         [bubbledata addobject:object];          [bubbledata sortusingcomparator:^nscomparisonresult(id obj1, id obj2)          {              nsbubble *bubbledata1 = (nsbubble *)obj1;              nsbubble *bubbledata2 = (nsbubble *)obj2;              return [bubbledata1.datee compare:bubbledata2.datee];          }];          nsdate *last = [nsdate datewithtimeintervalsince1970:0];         nsmutablearray *currentsection = nil;          (int = 0; < count; i++)         {             nsbubble *data = (nsbubble *)[bubbledata objectatindex:i];              if ([data.datee timeintervalsincedate:last] > self.snapinterval)             {                 currentsection = [[nsmutablearray alloc] init];                 [self.bubblesection addobject:currentsection];             }             [currentsection addobject:data];             last = data.datee;         }     }   }  [super reloaddata]; } #pragma mark - uitableviewdatasource implementation   - (nsinteger)numberofsectionsintableview:(uitableview *)tableview { int result = [self.bubblesection count];  return result;  }    - (nsinteger)tableview:(uitableview *)tableview numberofrowsinsection:(nsinteger)section  {    return [[self.bubblesection objectatindex:section] count];    }   - (float)tableview:(uitableview *)tableview heightforrowatindexpath:(nsindexpath *)indexpath  {   // header  if (indexpath.row == 0)  {      return [nsbubbletblheadercell height];  }   nsbubble *data = [[self.bubblesection objectatindex:indexpath.section] objectatindex:indexpath.row - 1];  return data.insetss.top + data.vieww.frame.size.height + data.insetss.bottom;   }   - (uitableviewcell *)tableview:(uitableview *)tableview cellforrowatindexpath:(nsindexpath *)indexpath  {   // header date , time  if (indexpath.row == 0)  {      static nsstring *cellid = @"tblbubbleheadercell";      nsbubbletblheadercell *cell = [tableview dequeuereusablecellwithidentifier:cellid];      nsbubble *data = [[self.bubblesection objectatindex:indexpath.section] objectatindex:0];       if (cell == nil) cell = [[nsbubbletblheadercell alloc] init];       cell.date = data.datee;       return cell;  }   // standard bubble  static nsstring *cellid = @"tblbubblecell";  nsbubbletblcell *cell = [tableview dequeuereusablecellwithidentifier:cellid];  nsbubble  *data = [[self.bubblesection objectatindex:indexpath.section] objectatindex:indexpath.row - 1];   if (cell == nil)   cell = [[nsbubbletblcell alloc] init];   cell.data = data;   return cell;   } 

showing multiple while run project. out of blue .help must appreciated. might problem tableview , datasource think understanding how can implement in this url help.

> ***assertion failure in -[nsbubbletblview > _createpreparedcellforglobalrow:withindexpath:willdisplay:], /sourcecache/uikit_sim/uikit-3318.16.14/uitableview.m:9269 2015-07-27 > 16:53:23.807 hansel[6740:143046] *** terminating app due uncaught > exception 'nsinternalinconsistencyexception', reason: 'uitableview > datasource not set' 

as can see., error: uitableview datasource not set indicates table view data source not set. have connect table view data source in interface builder.