sorting array based on key having time in Objective C?
-3
I have an array of dictionaries. showing follow:
(
{
from = "02:22 PM";
sport = Baseball;
"sport_id" = 39;
status = Available;
to = "03:22 PM";
},
{
from = "09:22 AM";
sport = Baseball;
"sport_id" = 39;
status = Unavailable;
to = "10:22 AM";
}
)
I want to sort these data by key 'from'. How can do that?
objective-c arrays sorting nsdictionary
asked Nov 15 '18 at 8:54
Wdp mobileWdp mobile
143
add a comment |
-3
I have an array of dictionaries. showing follow:
(
{
from = "02:22 PM";
sport = Baseball;
"sport_id" = 39;
status = Available;
to = "03:22 PM";
},
{
from = "09:22 AM";
sport = Baseball;
"sport_id" = 39;
status = Unavailable;
to = "10:22 AM";
}
)
I want to sort these data by key 'from'. How can do that?
objective-c arrays sorting nsdictionary
asked Nov 15 '18 at 8:54
Wdp mobileWdp mobile
143
You can use a formatter to transform theNSStringvalue forfromandsortedArrayUsingComparator:to sort the array using a block that compare the dictionary according to the wanted value.
– Larme
Nov 15 '18 at 9:21
add a comment |
-3
-3
-3
I have an array of dictionaries. showing follow:
(
{
from = "02:22 PM";
sport = Baseball;
"sport_id" = 39;
status = Available;
to = "03:22 PM";
},
{
from = "09:22 AM";
sport = Baseball;
"sport_id" = 39;
status = Unavailable;
to = "10:22 AM";
}
)
I want to sort these data by key 'from'. How can do that?
objective-c arrays sorting nsdictionary
asked Nov 15 '18 at 8:54
Wdp mobileWdp mobile
143
I have an array of dictionaries. showing follow:
(
{
from = "02:22 PM";
sport = Baseball;
"sport_id" = 39;
status = Available;
to = "03:22 PM";
},
{
from = "09:22 AM";
sport = Baseball;
"sport_id" = 39;
status = Unavailable;
to = "10:22 AM";
}
)
I want to sort these data by key 'from'. How can do that?
objective-c arrays sorting nsdictionary
objective-c arrays sorting nsdictionary
asked Nov 15 '18 at 8:54
Wdp mobileWdp mobile
143
asked Nov 15 '18 at 8:54
Wdp mobileWdp mobile
143
asked Nov 15 '18 at 8:54
Wdp mobileWdp mobile
143
asked Nov 15 '18 at 8:54
Wdp mobileWdp mobile
143
asked Nov 15 '18 at 8:54
Wdp mobileWdp mobile
143
143
You can use a formatter to transform theNSStringvalue forfromandsortedArrayUsingComparator:to sort the array using a block that compare the dictionary according to the wanted value.
– Larme
Nov 15 '18 at 9:21
add a comment |
You can use a formatter to transform theNSStringvalue forfromandsortedArrayUsingComparator:to sort the array using a block that compare the dictionary according to the wanted value.
– Larme
Nov 15 '18 at 9:21
You can use a formatter to transform the
NSString value for from and sortedArrayUsingComparator: to sort the array using a block that compare the dictionary according to the wanted value.– Larme
Nov 15 '18 at 9:21
You can use a formatter to transform the
NSString value for from and sortedArrayUsingComparator: to sort the array using a block that compare the dictionary according to the wanted value.– Larme
Nov 15 '18 at 9:21
add a comment |
1 Answer
1
active
oldest
votes
1
Problem solve by:
NSArray* sortedDatesArray = [ar sortedArrayUsingComparator: ^(id a, id b) {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh:mm a"];
NSDate *d1 = [dateFormatter dateFromString: [a objectForKey:@"from"]];
NSDate *d2 = [dateFormatter dateFromString: [b objectForKey:@"from"]];
return [d1 compare: d2];
}];
answered Nov 15 '18 at 9:29
Wdp mobileWdp mobile
143
1
PrefersobjectForKey:instead ofvalueForKey:. For aNSDictionary, it's okay, but if by some circumstances, it's anNSArrayfor instance, the output might not be the one you expect and might causes a crash.
– Larme
Nov 15 '18 at 9:39
@Larme thanks :)
– Wdp mobile
Nov 15 '18 at 9:49
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
1
Problem solve by:
NSArray* sortedDatesArray = [ar sortedArrayUsingComparator: ^(id a, id b) {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh:mm a"];
NSDate *d1 = [dateFormatter dateFromString: [a objectForKey:@"from"]];
NSDate *d2 = [dateFormatter dateFromString: [b objectForKey:@"from"]];
return [d1 compare: d2];
}];
answered Nov 15 '18 at 9:29
Wdp mobileWdp mobile
143
1
PrefersobjectForKey:instead ofvalueForKey:. For aNSDictionary, it's okay, but if by some circumstances, it's anNSArrayfor instance, the output might not be the one you expect and might causes a crash.
– Larme
Nov 15 '18 at 9:39
@Larme thanks :)
– Wdp mobile
Nov 15 '18 at 9:49
add a comment |
1
Problem solve by:
NSArray* sortedDatesArray = [ar sortedArrayUsingComparator: ^(id a, id b) {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh:mm a"];
NSDate *d1 = [dateFormatter dateFromString: [a objectForKey:@"from"]];
NSDate *d2 = [dateFormatter dateFromString: [b objectForKey:@"from"]];
return [d1 compare: d2];
}];
answered Nov 15 '18 at 9:29
Wdp mobileWdp mobile
143
1
PrefersobjectForKey:instead ofvalueForKey:. For aNSDictionary, it's okay, but if by some circumstances, it's anNSArrayfor instance, the output might not be the one you expect and might causes a crash.
– Larme
Nov 15 '18 at 9:39
@Larme thanks :)
– Wdp mobile
Nov 15 '18 at 9:49
add a comment |
1
1
1
Problem solve by:
NSArray* sortedDatesArray = [ar sortedArrayUsingComparator: ^(id a, id b) {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh:mm a"];
NSDate *d1 = [dateFormatter dateFromString: [a objectForKey:@"from"]];
NSDate *d2 = [dateFormatter dateFromString: [b objectForKey:@"from"]];
return [d1 compare: d2];
}];
answered Nov 15 '18 at 9:29
Wdp mobileWdp mobile
143
Problem solve by:
NSArray* sortedDatesArray = [ar sortedArrayUsingComparator: ^(id a, id b) {
NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
[dateFormatter setDateFormat:@"hh:mm a"];
NSDate *d1 = [dateFormatter dateFromString: [a objectForKey:@"from"]];
NSDate *d2 = [dateFormatter dateFromString: [b objectForKey:@"from"]];
return [d1 compare: d2];
}];
answered Nov 15 '18 at 9:29
Wdp mobileWdp mobile
143
edited Nov 15 '18 at 9:49
answered Nov 15 '18 at 9:29
Wdp mobileWdp mobile
143
answered Nov 15 '18 at 9:29
Wdp mobileWdp mobile
143
answered Nov 15 '18 at 9:29
Wdp mobileWdp mobile
143
143
1
PrefersobjectForKey:instead ofvalueForKey:. For aNSDictionary, it's okay, but if by some circumstances, it's anNSArrayfor instance, the output might not be the one you expect and might causes a crash.
– Larme
Nov 15 '18 at 9:39
@Larme thanks :)
– Wdp mobile
Nov 15 '18 at 9:49
add a comment |
1
PrefersobjectForKey:instead ofvalueForKey:. For aNSDictionary, it's okay, but if by some circumstances, it's anNSArrayfor instance, the output might not be the one you expect and might causes a crash.
– Larme
Nov 15 '18 at 9:39
@Larme thanks :)
– Wdp mobile
Nov 15 '18 at 9:49
1
1
Prefers
objectForKey: instead of valueForKey:. For a NSDictionary, it's okay, but if by some circumstances, it's an NSArray for instance, the output might not be the one you expect and might causes a crash.– Larme
Nov 15 '18 at 9:39
Prefers
objectForKey: instead of valueForKey:. For a NSDictionary, it's okay, but if by some circumstances, it's an NSArray for instance, the output might not be the one you expect and might causes a crash.– Larme
Nov 15 '18 at 9:39
@Larme thanks :)
– Wdp mobile
Nov 15 '18 at 9:49
@Larme thanks :)
– Wdp mobile
Nov 15 '18 at 9:49
add a comment |
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You can use a formatter to transform the
NSStringvalue forfromandsortedArrayUsingComparator:to sort the array using a block that compare the dictionary according to the wanted value.– Larme
Nov 15 '18 at 9:21