我发现 3 个函数存在严重泄漏，并且我一次又一次地调用这些函数

Question

我一次又一次地使用 3 个函数，但每次都会出现泄漏。这些泄漏的原因是什么？

//function 1  
      UILocalNotification *localNotification = [[UILocalNotification alloc] init];
                localNotification.fireDate  = appDelegate.Date_iCal;
                localNotification.alertBody = appDelegate.Name;
                localNotification.soundName = UILocalNotificationDefaultSoundName;
                localNotification.applicationIconBadgeNumber = count;//total number of event in iCal

                NSDictionary *infoDict = [NSDictionary dictionaryWithObjectsAndKeys:@"Object 1", @"Key 1", @"Object 2", @"Key 2", nil];
                localNotification.userInfo = infoDict;

                [[UIApplication sharedApplication] scheduleLocalNotification:localNotification];
                [localNotification release]     ;
                //Local notification add

function2:
EKEventStore *eventStore = [[EKEventStore alloc]init] ;
    EKEvent *event  = [EKEvent eventWithEventStore:eventStore];

    event.title     = appDelegate.Name;
    event.startDate = appDelegate.Date_iCal;
    event.endDate   = appDelegate.Date_iCal;



    [event setCalendar:[eventStore defaultCalendarForNewEvents]];
     NSError *err;
    @try
    {
        [eventStore saveEvent:event span:EKSpanThisEvent error:&err];
        NSString* str = [[NSString alloc] initWithFormat:@"%@", event.eventIdentifier];
        appDelegate.eventIdentifier = str;
        [str release];

    }
    @catch (NSException * e)
    {
            //NSLog(@"exeption run1");

    }
    [eventStore release];

//function3
int flag1 = 0;
    if( [appDelegate.display_date length] == 0 || [appDelegate.timestamp1 length] == 0)
    {
        NSDateFormatter *df = [[NSDateFormatter alloc] init];
        [df setDateFormat:@"dd.MM.yyyy hh:mm a"];
        appDelegate.display_date    =   [df stringFromDate:[NSDate date]];
        appDelegate.timestamp1      =   @"empty";
        [df release];
    }
    addStmt1 = nil;
    if(addStmt1 == nil) 
    {

        const char *sql ="insert into actions(action_title,action_date,dificulty_level,subid,flag,needle_num,display_date,event) Values(?,?,?,?,?,?,?,?)";
        if(sqlite3_prepare_v2(database1, sql, -1, &addStmt1, NULL) != SQLITE_OK)
            NSAssert1(0, @"Error while creating add statement. '%s'", sqlite3_errmsg(database1));
    }

    sqlite3_bind_text(addStmt1, 1, [appDelegate.Name UTF8String], -1, SQLITE_TRANSIENT);
    sqlite3_bind_text(addStmt1, 2, [appDelegate.timestamp1 UTF8String], -1, SQLITE_TRANSIENT);
    sqlite3_bind_double(addStmt1, 3, appDelegate.dif_lev);
    sqlite3_bind_int(addStmt1,4,(int)appDelegate.Id);
    sqlite3_bind_int(addStmt1,5,flag1);
    sqlite3_bind_int(addStmt1,6,(int)appDelegate.needle_num);
    sqlite3_bind_text(addStmt1, 7, [appDelegate.display_date UTF8String], -1, SQLITE_TRANSIENT);
    sqlite3_bind_text(addStmt1, 8, [appDelegate.eventIdentifier UTF8String], -1, SQLITE_TRANSIENT);


    if(SQLITE_DONE != sqlite3_step(addStmt1))
    {
        @try 
        {
            NSAssert1(0, @"Error while inserting data. '%s'", sqlite3_errmsg(database1));

        }
        @catch (NSException * e) 
        {
            //NSLog(@"exeption run3");
        }
    }   

    sqlite3_reset(addStmt1);
    sqlite3_finalize(addStmt1);

    if( [appDelegate.display_date isEqualToString:@"empty"])
        appDelegate.display_date = @"";

我哪里出错了？ 这些功能只需点击一键即可运行。

Answer 1

清理您的应用程序，然后按 Command+A，这将运行仪器并显示所有泄漏。

正如你所说，有 3 个泄漏，这意味着你已经按照上述步骤操作了。

现在正确阅读泄漏，您将了解哪一行发生泄漏的原因。

请检查一下。

快乐 iCoding...