Question

我正在尝试使用以下代码设置自定义类的CLLocation属性（名为objectLocation），从我的主ViewController调用。不幸的是，我收到一条错误，告诉我＆＃34;评论＆＃34;表示＆＃34;表达式不可分配。＆＃34; locationsArray是自定义类的对象数组。我真的需要设置这个值，所以感谢任何帮助！

- (void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations
{
for (int i = 0; i < [locationsArray count]; i++) {

if ([locationsArray[i] objectLocation] == NULL) {
    [locationsArray[i] objectLocation] = [locations lastObject]; //retrieves most recent location data - THIS IS THE LINE THAT RECEIVES THE ERROR
    //now set up a region and start monitoring data for that region
    [locationsArray[i] region] = [[CLRegion alloc]
                                          initCircularRegionWithCenter:
                                          [[locationsArray[i] objectLocation] coordinate]
                                                                radius:2
                                                            identifier:[NSString stringWithFormat:@"%@", [locationsArray[i] objectLocationName]]];
       }
}
}

Answer 1

如果它是您班级中CLLocation的属性，并且假设您的locationsArray拥有该对象且您的locations数组确实包含CLLocation个对象，请尝试以下内容：

((<YOUR_CLASS>*)[locationsArray[i]).objectLocation = [locations lastObject];

希望这有帮助。

无法设置属性，CLLocation

1 个答案: