分配给CLLocationManager的指针类型不兼容

时间:2012-06-21 16:16:59

标签: cllocationmanager

所以我开发了一个独立的罗盘应用程序(箭头旋转到指向tofixed lat / long point),它完全可以作为一个独立的项目工作,但是当我将它纳入更广泛的项目时,我遇到了问题。

最初我得到一个语义警告(不兼容的指针类型从'CLLoccation * __ strong'分配给'CLLocationManager *'):

- (void)locationManager:(CLLocationManager *)manager 
didUpdateToLocation:(CLLocation *)newLocation 
       fromLocation:(CLLocation *)oldLocation {

if (newLocation.horizontalAccuracy >= 0) {

    self.recentLocation = newLocation; (WARNING HERE)

CLLocation *POI2location = [[CLLocation alloc]
                                initWithLatitude:kPOI2Latitude 
                                longitude:kPOI2Longitude];
    CLLocationDistance delta = [POI2location 

                                distanceFromLocation:newLocation];

进一步我得到致命错误(在'CLLocationManager类型的对象上找不到属性'坐标'):

- (void)locationManager:(CLLocationManager *)manager
   didUpdateHeading:(CLHeading *)newHeading {

if (self.recentLocation != nil && newHeading.headingAccuracy >= 0) {
    CLLocation *POI2Location = [[CLLocation alloc]
                                initWithLatitude:kPOI2Latitude
                                longitude:kPOI2Longitude];

    double course = [self headingToLocation:POI2Location.coordinate
                                    current:recentLocation.coordinate]; (WARNING HERE)

出于某种原因,它现在不喜欢'recentLocation',而之前它们都完美无缺。有人能向我指出我所缺少的东西。我相信对于比我更有经验的人来说,这是显而易见的。

非常感谢提前。

1 个答案:

答案 0 :(得分:0)

今天早上再次开始,答案正盯着我看!

在.h文件中我放

@property (strong, nonatomic) CLLocationManager *recentLocation;

我应该放

@property (strong, nonatomic) CLLocation *recentLocation;
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