Day.h
#import <Foundation/Foundation.h>
#import "GData.h"
#define KEY_CALENDAR @"calendar"
#define KEY_EVENTS @"events"
#define KEY_TICKET @"ticket"
#define KEY_EDITABLE @"editable"
@interface Day : NSObject{
GDataServiceGoogleCalendar * service;
}
@property (retain) NSDate* date;
@property (retain) NSMutableArray* schedule;
@property (retain) NSMutableArray* allWO;
@property (retain) NSMutableArray* selectedWO;
@property (retain) DistanceMatrixResponse* dmr;
@property (retain) NSMutableArray* array;
@property (retain) NSMutableArray* data;
- (id)init:(NSDate*)d;
@end
Day.m
@implementation Day
@synthesize date, schedule, allWO, selectedWO, dmr, array, data;
- (void)calendarsTicket:(GDataServiceTicket *)ticket finishedWithFeed:(GDataFeedCalendar *)feed error:(NSError *)error{
if( !error ){
int count = [[feed entries] count];
for( int i=0; i<count; i++ ){
GDataEntryCalendar *calendar = [[feed entries] objectAtIndex:i];
// Create a dictionary containing the calendar and the ticket to fetch its events.
NSMutableDictionary *dictionary = [[NSMutableDictionary alloc] init];
[data addObject:dictionary];
[dictionary setObject:calendar forKey:KEY_CALENDAR];
[dictionary setObject:[[NSMutableArray alloc] init] forKey:KEY_EVENTS];
if( [calendar ACLLink] ) // We can determine whether the calendar is under user's control by the existence of its edit link.
[dictionary setObject:KEY_EDITABLE forKey:KEY_EDITABLE];
NSURL *feedURL = [[calendar alternateLink] URL];
if( feedURL ){
GDataQueryCalendar* query = [GDataQueryCalendar calendarQueryWithFeedURL:feedURL];
NSDate *minDate = [NSDate date]; // Display Event from now
NSDate *maxDate = [NSDate dateWithTimeIntervalSinceNow:60*60*24*90]; // ...to 90 days from now.
[query setMinimumStartTime:[GDataDateTime dateTimeWithDate:minDate timeZone:[NSTimeZone systemTimeZone]]];
[query setMaximumStartTime:[GDataDateTime dateTimeWithDate:maxDate timeZone:[NSTimeZone systemTimeZone]]];
[query setOrderBy:@"starttime"];
[query setIsAscendingOrder:YES];
[query setShouldExpandRecurrentEvents:YES];
GDataServiceTicket *ticket = [service fetchFeedWithQuery:query
delegate:self
didFinishSelector:@selector( eventsTicket:finishedWithEntries:error: )];
[dictionary setObject:ticket forKey:KEY_TICKET];
}
}
}else
NSLog(@"Some Error: 1");
NSLog(@"POINT 1-=-=-=-=-=-=-=-= %d", [data count]);
array = [[NSMutableArray alloc] initWithArray:data copyItems:YES];
}
- (void)eventsTicket:(GDataServiceTicket *)ticket finishedWithEntries:(GDataFeedCalendarEvent *)feed error:(NSError *)error{
if( !error ){
NSMutableDictionary *dictionary;
for( int section=0; section<[data count]; section++ ){
NSMutableDictionary *nextDictionary = [data objectAtIndex:section];
GDataServiceTicket *nextTicket = [nextDictionary objectForKey:KEY_TICKET];
if( nextTicket==ticket ){ // We've found the calendar these events are meant for...
dictionary = nextDictionary;
break;
}
}
if( !dictionary )
return; // This should never happen. It means we couldn't find the ticket it relates to.
int count = [[feed entries] count];
NSMutableArray *events = [dictionary objectForKey:KEY_EVENTS];
for( int i=0; i<count; i++ ){
[events addObject:[[feed entries] objectAtIndex:i]];
}
NSURL *nextURL = [[feed nextLink] URL];
if( nextURL ){ // There are more events in the calendar... Fetch again.
GDataServiceTicket *newTicket = [service fetchFeedWithURL:nextURL
delegate:self
didFinishSelector:@selector( eventsTicket:finishedWithEntries:error: )]; // Right back here...
// Update the ticket in the dictionary for the next batch.
[dictionary setObject:newTicket forKey:KEY_TICKET];
}
}else
NSLog(@"Some error: 2");
//[self handleError:error];
}
- (void)refresh{
[data removeAllObjects];
GDataServiceTicket *ticket =[service fetchCalendarFeedForUsername:googleusername
delegate:self
didFinishSelector:@selector( calendarsTicket:finishedWithFeed:error: )];
}
- (id)init:(NSDate*)d
{
self = [super init];
if(self){
NSArray* days = [[NSArray alloc]initWithObjects:@"Sunday", @"Monday", @"Tuesday", @"Wednesday", @"Thursday", @"Friday",@"Saturday", nil];
data = [[NSMutableArray alloc]init];
self.date = d;
self.allWO = [[NSMutableArray alloc]init];
self.selectedWO = [[NSMutableArray alloc]init];
self.schedule = [[NSMutableArray alloc]init];
NSCalendar *gregorian = [[NSCalendar alloc]
initWithCalendarIdentifier:NSGregorianCalendar];
NSDateComponents *weekdayComponents = [gregorian components:(NSDayCalendarUnit | NSWeekdayCalendarUnit) fromDate:self.date];
NSInteger dayofweek = [weekdayComponents weekday];
int st = 600;
for(int i = 0; i<32; i++){
int et = st +50;
TimePeriod* tp = [[TimePeriod alloc]init:[days objectAtIndex:dayofweek-1]: st%100 == 0?st:st-20 :et%100 == 0?et:et-20];
[schedule addObject:tp];
st+=50;
}
service = [[GDataServiceGoogleCalendar alloc] init];
[service setUserCredentialsWithUsername:googleusername
password:googlepassword;
[self refresh];
NSLog(@"Count: %d", [array count]);
}
return self;
}
}
@end
只是想知道是否有人可以提供帮助！
上述代码旨在检索所有用户googleCalendar事件和日历，并将其存储在＆＃34;数据＆＃34; NSMutableArray里。它完美地做到了。我使用的Google用户有三个日历，因此此行的计数
NSLog(@"POINT 1-=-=-=-=-=-=-=-= %d", [data count]);
打印3，应该如此。但是在这一行，计数仍为0。
NSLog(@"Count: %d", [array count]);
我相信当调用[self refresh]时代码会继续运行
[service fetchCalendarFeedForUsername:googleusername
delegate:self
didFinishSelector:@selector( calendarsTicket:finishedWithFeed:error: )];
已经跑完了。
我只需要在日期对象中保留一系列Days事件（来自Google日历）。
有什么建议吗？
答案 0 :(得分：1)
让我用这种方式解释一下：
声明了MyClass并包含一个名为“theArray”的实例变量。
MyClass* instanceA = [[MyClass alloc] init]; // init leaves "theArray" nil
MyClass* instanceB = [[MyClass alloc] init];
[instanceA someMethodThatSetsTheArray];
[instanceB someMethodThatReferencesTheArray];
第二个方法调用将发现“theArray”为零。
答案 1 :(得分：0)
你在问题中的想法是正确的：
我相信当调用[self refresh]时代码会继续运行
[service fetchCalendarFeedForUsername:...已经跑完了。
这是完全正确的。在异步服务调用返回数据之前，您没有设置array，这是在您的init方法返回之后的。所以你只是过早地阅读array。
事实上，您会在日志中注意到这一行：
NSLog(@"Count: %d", [array count]);
打印 之前：
NSLog(@"POINT 1-=-=-=-=-=-=-=-= %d", [data count]);