ios - '-[UITextView autocapitalizationType]: unrecognized selector sent to instance? -
i create custom subclasses(subcustomview) of uiview when click on button , added uitextview class on subcustomview subview. when initiate uitextview use initwithframe:textcontainer: method. when used method, project crashed. when use initwithframe: method project not crashed. using following code:
textcontainer1 = [[nstextcontainer alloc] initwithsize:cgsizemake(2, cgfloat_max)]; stringtextview = [[uitextview alloc] initwithframe:cgrectmake(0, 0, frame.size.width, frame.size.height) textcontainer:textcontainer1]; //stringtextview = [[uitextview alloc] initwithframe:cgrectmake(0, 0, frame.size.width, frame.size.height)]; stringtextview.keyboardappearance = yes; stringtextview.autoresizingmask = uiviewautoresizingflexibleheight | uiviewautoresizingflexiblewidth; stringtextview.scrollenabled = yes; stringtextview.backgroundcolor = [uicolor redcolor]; stringtextview.autocapitalizationtype = uitextautocapitalizationtypewords; stringtextview.delegate = self; [self addsubview:stringtextview]; [stringtextview becomefirstresponder]; nsstring *samplestring=@"gprisdoingfirst ios 7.0 project"; textstorage = [[nstextstorage alloc] initwithstring:samplestring]; layoutmanager = [[customlayoutm alloc] init];//customlayoutm subclass of `nslayoutmanager` [textstorage addlayoutmanager:layoutmanager]; [textstorage addattribute:nsfontattributename value:[uifont fontwithname:@"helvetica-bold" size:30.0] range:nsmakerange(0, [textstorage length])]; [layoutmanager addtextcontainer:textcontainer1]; the error is:
terminating app due uncaught exception 'nsinvalidargumentexception', reason: '-[uitextview setkeyboardappearance:]: unrecognized selector sent instance 0x93ab000'
first throw call stack:
( 0 corefoundation 0x019706f4 __exceptionpreprocess + 180 1 libobjc.a.dylib 0x016f08b6 objc_exception_throw + 44 2 corefoundation 0x01a0d983 -[nsobject(nsobject) doesnotrecognizeselector:] + 275 3 libobjc.a.dylib 0x01702959 -[nsobject forwardinvocation:] + 68 4 corefoundation 0x019607ea ___forwarding___ + 458 5 corefoundation 0x019605fe _cf_forwarding_prep_0 + 14 6 uikit 0x006ff4b3 -[uitextinputtraits taketraitsfrom:] + 1075 7 uikit 0x006ffc2b +[uitextinputtraits traitsbyadoptingtraits:] + 83 8 uikit 0x0063a659 -[uikeyboardimpl taketextinputtraitsfromdelegate] + 177 9 uikit 0x0063acbb -[uikeyboardimpl setdelegate:force:] + 1040 10 uikit 0x0063a8a6 -[uikeyboardimpl setdelegate:] + 48 11 uikit 0x008e535d -[uiperipheralhost(uikitinternal) _reloadinputviewsforresponder:] + 640 12 uikit 0x005c0d5a -[uiresponder(uiresponderinputviewadditions) reloadinputviews] + 287 13 uikit 0x005c064b -[uiresponder becomefirstresponder] + 550 14 uikit 0x004c4dab -[uiview(hierarchy) becomefirstresponder] + 114 15 uikit 0x00b33e69 -[uitextview becomefirstresponder] + 79 16 uikit 0x004c4df8 -[uiview(hierarchy) deferredbecomefirstresponder] + 67 17 uikit 0x004c4e8c -[uiview(hierarchy) _promoteselfordescendanttofirstresponderifnecessary] + 115 18 uikit 0x004c514e __45-[uiview(hierarchy) _postmovedfromsuperview:]_block_invoke + 224 19 foundation 0x014a453c -[nsisengine withbehaviors:performmodifications:] + 107 20 foundation 0x01334395 -[nsisengine withautomaticoptimizationdisabled:] + 48 21 uikit 0x004c4fcd -[uiview(hierarchy) _postmovedfromsuperview:] + 313 22 uikit 0x004d00d1 -[uiview(internal) _addsubview:positioned:relativeto:] + 1847 23 uikit 0x004c35c1 -[uiview(hierarchy) addsubview:] + 56 24 practiceios7 0x000085a6 -[textcurveview createtextviewmethod] + 518 25 practiceios7 0x00008a9d -[textcurveview panmethod:] + 1101 26 uikit 0x007de61c _uigesturerecognizersendactions + 230 27 uikit 0x007dd290 -[uigesturerecognizer _updategesturewithevent:buttonevent:] + 383 28 uikit 0x007decfd -[uigesturerecognizer _delayedupdategesture] + 60 29 uikit 0x007e225d ___uigesturerecognizerupdate_block_invoke + 57 30 uikit 0x007e21de _uigesturerecognizerremoveobjectsfromarrayandapplyblocks + 317 31 uikit 0x007d88d8 _uigesturerecognizerupdate + 199 32 uikit 0x004a6e9a -[uiwindow _sendgesturesforevent:] + 1291 33 uikit 0x004a7dba -[uiwindow sendevent:] + 1030 34 uikit 0x0047bb86 -[uiapplication sendevent:] + 242 35 uikit 0x0046635f _uiapplicationhandleeventqueue + 11421 36 corefoundation 0x018f996f __cfrunloop_is_calling_out_to_a_source0_perform_function__ + 15 37 corefoundation 0x018f92fb __cfrunloopdosources0 + 235 38 corefoundation 0x019163ce __cfrunlooprun + 910 39 corefoundation 0x01915bf3 cfrunlooprunspecific + 467 40 corefoundation 0x01915a0b cfrunloopruninmode + 123 41 graphicsservices 0x030fca27 gseventrunmodal + 192 42 graphicsservices 0x030fc84e gseventrun + 104 43 uikit 0x00468f0b uiapplicationmain + 1225 44 practiceios7 0x00009b8d main + 141 45 libdyld.dylib 0x02dec725 start + 0 ) libc++abi.dylib: terminating uncaught exception of type nsexception
you should initialize objects in proper order.
first create , attach nstextstorage, nstextcontainer , nslayoutmanager. , create uitextview prepared use nstextcontainer.
// 1. create , prepare nstextcontainer textcontainer1 = [[nstextcontainer alloc] initwithsize:cgsizemake(2, cgfloat_max)]; nsstring *samplestring=@"gprisdoingfirst ios 7.0 project"; textstorage = [[nstextstorage alloc] initwithstring:samplestring]; layoutmanager = [[customlayoutm alloc] init];//customlayoutm subclass of `nslayoutmanager` [textstorage addlayoutmanager:layoutmanager]; [textstorage addattribute:nsfontattributename value:[uifont fontwithname:@"helvetica-bold" size:30.0] range:nsmakerange(0, [textstorage length])]; [layoutmanager addtextcontainer:textcontainer1]; // 2. create uitextview stringtextview = [[uitextview alloc] initwithframe:cgrectmake(0, 0, frame.size.width, frame.size.height) textcontainer:textcontainer1]; // 3. setup uitextview stringtextview.keyboardappearance = yes; stringtextview.autoresizingmask = uiviewautoresizingflexibleheight | uiviewautoresizingflexiblewidth; stringtextview.autocapitalizationtype = uitextautocapitalizationtypewords; // …
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