我的plist文件:如何在字典中添加鍵和字符串?
NSArray *documentPaths = NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES);
NSString *path = [[documentPaths lastObject] stringByAppendingPathComponent:@"data.plist"];
dict = [NSDictionary dictionaryWithContentsOfFile:path];
遍歷數組,添加註釋和計算距離:
ann = [dict objectForKey:@"Blue"];
[resultArray addObject:@"Blue"];
for(int i = 0; i < [ann count]; i++) {
NSString *coordinates = [[ann objectAtIndex:i] objectForKey:@"Coordinates"];
double realLatitude = [[[coordinates componentsSeparatedByString:@","] objectAtIndex:1] doubleValue];
double realLongitude = [[[coordinates componentsSeparatedByString:@","] objectAtIndex:0] doubleValue];
MyAnnotation *myAnnotation = [[MyAnnotation alloc] init];
CLLocationCoordinate2D theCoordinate;
theCoordinate.latitude = realLatitude;
theCoordinate.longitude = realLongitude;
myAnnotation.coordinate=CLLocationCoordinate2DMake(realLatitude,realLongitude);
myAnnotation.title = [[ann objectAtIndex:i] objectForKey:@"Name"];
myAnnotation.subtitle = [[ann objectAtIndex:i] objectForKey:@"Address"];
myAnnotation.icon = [[ann objectAtIndex:0] objectForKey:@"Icon"];
[mapView addAnnotation:myAnnotation];
[annotations addObject:myAnnotation];
CLLocation *pinLocation = [[CLLocation alloc]
initWithLatitude:realLatitude
longitude:realLongitude];
CLLocation *userLocation = [[CLLocation alloc]
initWithLatitude:mapView.userLocation.coordinate.latitude
longitude:mapView.userLocation.coordinate.longitude];
CLLocationDistance distance = [pinLocation distanceFromLocation:userLocation];
NSLog(@"Distance: %4.0f m.", distance);
}
我的plist結構:
現在我需要添加所有Dictionaries
「藍色」Array
新Key
名爲「距離「與string
距離
http://stackoverflow.com/questions/3159844/how-to-add-to-an-nsdictionary這可以幫助你 – 2013-05-04 11:16:29