[英]Get dictionary value from array in iOS?
I have the following NSArray
: 我有以下
NSArray
:
(
{
geometry = {
location = {
lat = "37.789632";
lng = "-122.417004";
};
};
icon = "http://maps.gstatic.com/mapfiles/place_api/icons/doctor-71.png";
vicinity = "900 Hyde Street, San Francisco";
},
{
geometry = {
location = {
lat = "37.794774";
lng = "-122.398941";
};
};
icon = "http://maps.gstatic.com/mapfiles/place_api/icons/lodging-71.png";
vicinity = "2 Embarcadero Center, San Francisco";
}
)
From this how can I get the latitude
and longitude
from each index? 从这个我怎么能得到的
latitude
和longitude
从各指标?
You didn't even try to think this one out?? 您甚至都没有想过这个? I'll help you out for the funs, but help yourself man
我会帮你找乐子,但是帮你自己
NSArray *values = ...;
for (NSDictionary *geometry in values) {
NSDictionary *loc = [geometry valueForKey:@"location"];
if (loc) {
NSNumber *lat = [loc valueForKey:@"lat"];
NSNumber *lng = [loc valueForKey:@"lng"];
if (lat && lng) {
// do whatever
}
}
}
EDIT: maybe it's like this 编辑:也许是这样的
NSArray *values = ...;
for (NSDictionary *item in values) {
NSDictionary *geo = [item valueForKey:@"geometry"];
if (geo) {
NSDictionary *loc = [geometry valueForKey:@"location"];
if (loc) {
NSNumber *lat = [loc valueForKey:@"lat"];
NSNumber *lng = [loc valueForKey:@"lng"];
if (lat && lng) {
// do whatever
}
}
}
}
for (int i=0 ; i<[parsedAry count] ; i++) {
NSMutableDictionary * location = [[[parsedAry objectAtIndex:i]objectForKey:@"geometry"]objectForKey:@"location"];
NSString * lat = [location objectForKey:"lat"];
NSString * lng = [location objectForKey:"lng"];
[latAry addObject:lat];
[LongAry addObject:lng];
}
You have to create and allocate latAry and longAry 您必须创建并分配latAry和longAry
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