iOS Learning-Location Services 2 achieving basic positioning

1 positioning, what is the main thing to do?

1 Getting location-related data

2 Getting location-related information

As a result, I thought of playing counter-strike inside with the sight of the sights of the feeling:

2 that ... How to position it?

1 First, you have to aim.

    Locationmanager=[[cllocationmanager Alloc]init]; Define the Locationmanage object to  open the sight mirror     locationmanager.delegate=self;                  Realize the agent  own shooting    [Locationmanager requestalwaysauthorization];   Request permanent authorization  How long can you take your gun?    locationmanager.desiredaccuracy=kcllocationaccuracybest;  Set positioning accuracy  adjustment surface quasi-mirror near    //authorization authorized, approved        locationmanager.distancefilter=1000.0f;                   Set the minimum distance to get Mobile information  How far do I need to adjust?

Here's an explanation: there are two scenarios for requesting authorization: 1 Requestalwaysauthorization obtaining a permanent license 2 Requestwheninuseauthorization when using the authorization
There are six options for setting the accuracy:

1 Kcllocationaccuracybestfornavigation navigation with the highest precision, general vehicle navigation (need external power)

2 kcllocationaccuracybest; Highest accuracy when battery is used

3 kcllocationaccuracynearesttenmeters; Accurate to 10 meters

4 kcllocationaccuracyhundredmeters; Accurate to 100 meters

5 Kcllocationaccuracykilometer; accurate to 1000 m

6 kcllocationaccuracythreekilometers; Accurate to 3-kilometer

2 You're going to load the bullets, you're done with the bullets.

-(void) Viewdidappear: (BOOL) animated{     [locationmanager startupdatinglocation];//Start update location information bullets loaded}-(void) Viewdiddisappear: (BOOL) animated{    [Locationmanager stopupdatinglocation];//  End Update location information unload the bullet}

3 and then you can shoot. (Implementing a Delegate method)

/* Method of---------------------------Locationmanagerdelegate----------------------------------*/// :-() Location Manager: Location where the administrator has updated: A location information-(void) Locationmanager: (Cllocationmanager *) Manager didupdatelocations: (nsarray *) locations{    cllocation *currentlocation=[locations lastobject];    Longtitudetextfield.text=[nsstring stringwithformat:@ "%3.5f", currentLocation.coordinate.longitude];    Latitudetextfield.text=[nsstring stringwithformat:@ "%3.5f", currentLocation.coordinate.latitude];    Hightextfield.text=[nsstring stringwithformat:@ "%3.5f", Currentlocation.altitude];}

4 in the event of a missed shot? (Protocol method)

Call failed//:-() Location Manager: An error message that an administrator has failed: An error message-(void) Locationmanager: (Cllocationmanager *) Manager Didfailwitherror: ( Nserror *) error{    //Small translation: Deny Deny    if (error.code==kclerrordenied)    {        NSLog (@ "Access Denied");    } else if (Error.code==kclerrorlocationunknown)    {        NSLog (@ "Location information Unknown");}    }

3 but will you be able to fix it? (Be careful not to let others)

1 To add two keys to the info.list!

nslocationalwaysusagedescription

nslocationwheninuseusagedescription

2 Remember right-click the option below

3 What about the effect? (Set options appear inside)

4 Running Results

5 Source Code

https://git.oschina.net/zhengaoxing/location1selflocation

iOS Learning-Location Services 2 achieving basic positioning