iphone - MKMapView leaks when removing Annotations or just me? -

-

i'm getting leaks of annotations. code (stripped down bear minimum) in question is:

- (void)updatelocations:(nsarray *)result {     [mapview removeannotations:locations];     [locations removeallobjects];     [alllocations removeallobjects];     (nsdictionary *location in result) {         locationannotation *annote = [[locationannotation alloc] initwithinfo:location];         [alllocations addobject:annote];         [annote release];     }     [self updateannotations]; }  - (void)filterlocations {     (locationannotation *annote in alllocations) {         if (annote.typeflag & filterflags) {             [locations addobject:annote];         }     } }  - (void)updateannotations {     [self filterlocations];     [mapview addannotations:locations]; }  - (void)updatefilter {     [mapview removeannotations:locations];     [locations removeallobjects];     [self updateannotations]; }

alllocations array contains annotations (they not on map), , locations array holds locations displayed in map. when updatelocations: called, (or all, changes test test) of annotations added map leaking. allocation history of annotations is:

#   category            event type  timestamp   refct   address     size    responsible library responsible caller 0   locationannotation  malloc      16421111296 1       0x4953870   64      myapp               -[mapviewcontroller updatelocations:] 1   locationannotation  retain      16421383424 2       0x4953870   0       myapp               -[mapviewcontroller updatelocations:] 2   locationannotation  release     16421391104 1       0x4953870   0       myapp               -[mapviewcontroller updatelocations:] 3   locationannotation  retain      16444210176 2       0x4953870   0       myapp               -[mapviewcontroller filterlocations] 4   locationannotation  retain      16557738240 3       0x4953870   0       mapkit              -[mkquadtrie insert:] 5   locationannotation  retain      16557750272 4       0x4953870   0       mapkit              -[mkannotationcontainerview addannotation:] 6   locationannotation  retain      16564529408 5       0x4953870   0       mapkit              -[mkquadtrie insert:] 7   locationannotation  release     17296397312 4       0x4953870   0       mapkit              -[mkannotationcontainerview showaddedannotationsanimated:] 8   locationannotation  retain      21832317184 5       0x4953870   0       mapkit              -[mkannotationcontainerview removeannotation:] 9   locationannotation  autorelease 21832324096         0x4953870   0       mapkit              -[mkannotationcontainerview removeannotation:] 10  locationannotation  release     21832350208 4       0x4953870   0       mapkit              -[mkquadtrie remove:] 11  locationannotation  release     21920062208 3       0x4953870   0       myapp               -[mapviewcontroller updatelocations:] 12  locationannotation  release     21923836416 2       0x4953870   0       myapp               -[mapviewcontroller updatelocations:] 13  locationannotation  release     22050286336 1       0x4953870   0       foundation          -[nsautoreleasepool drain]

and looking @ seems culprit [mkquadtrie insert:] called twice while 1 [mkquadtrie remove:] called. missing , fault or bug in mkmapkit?

edit: have seen allocation histroy 14 [mkquadtrie insert:] calls , 1 [mkquadtrie remove:]

ok solved problem me

i trying remove annotations , add new ones (but code making sure didn't remove user location). code

i replaced this

[self.map removeannotations: [self.map.annotations filteredarrayusingpredicate:[nspredicate predicatewithformat:@"!(self iskindofclass: %@)", [mkuserlocation class]]]];

and don't same issue.


Comments

Post a Comment

Popular posts from this blog

java - SNMP4J General Variable Binding Error -

-
i trying use snmp4j snmp bulkget. when ever use snmp4j make call returned responseevent error says "general variable binding error" , data returned equal null. to debug: print out, console, exact oid , version number using in snmp4j. use printed out data snmpwalk on command line. valid results. know sending snmp4j correct pdu correct oid, version number, max repititions, etc. i have used snmp4j , code wrote succesffuly monitor other devices years. don't know different time. leaving me stumped. why "general variable binding error?" causes error? ideas debug? can reproduced? if so, first action should using wireshark or microsoft network monitor capture network packets. my guess agent gives generr response, not surprising, http://www.ietf.org/rfc/rfc1157.txt
Read more

windows - Python Service Installation - "Could not find PythonClass entry" -

-
i working on building python service. inducing error, not sure inducing it. ps c:\...> python .\file.py debug debugging service myservice - press ctrl+c stop. error 0xc00000f4 - not find service's pythonclass entry in registry error 1814 - specified resource name cannot found in image file. error 0xc0000080 - not locate module name in python class string (ie, no '.') this error coming pythonservicemessages.mc in pythonwin32. it turns out error result caused exception being thrown , python script dying off.
Read more

Determine if a XmlNode is empty or null in C#? -

-
the following code takes xmlnode data type , populates dataset object xmlnode content. write dataset's content file. public void populatedataset(xmlnode node) { xmlnodereader reader = new xmlnodereader(node); dataset ds = new dataset(); ds.readxml(reader); system.guid guid = system.guid.newguid(); string name = string.format("{0}{1}_{2}.xml", utility.xmloutputpath, utility.xmloutputfilename, guid.tostring()); //need write "node empty" file if xmlnode object empty of null ds.writexml(name, xmlwritemode.ignoreschema); } the problem encountered 1 scenario not write content file. how determine if xmlnode object null or empty? you can check if node parameter null or has innertext or innerxml properties null or empty, when enter method before creating xmlnodereader .
Read more