iOS 百度地图判断用户是否拖动地图的检测方法

前言：百度地图API并没有提供移动地图时的回调接口

实现：通过判断当前地图的中心位置是否为用户位置来判断，代码如下

-(void)mapView:(BMKMapView *)mapView regionDidChangeAnimated:(BOOL)animated {

    if (![self isCoordinateA:_mapView.centerCoordinate equalToCoordinateB:_location.coordinate]){
        UserLocationInCenter = NO;
    }
}

-(BOOL)isCoordinateA:(CLLocationCoordinate2D )locA equalToCoordinateB:(CLLocationCoordinate2D)locB{

    CLLocation *locationA = [[CLLocation alloc]initWithLatitude:locA.latitude longitude:locA.longitude];
    CLLocation *locationB = [[CLLocation alloc]initWithLatitude:locB.latitude longitude:locB.longitude];

    CGFloat dist= [locationA distanceFromLocation:locationB];

    if(dist <5){
        return YES;
    }
    return NO;
}