Android getlastknownlocation () solution to obtain the null location

Developing with the Google map API is a tangle

When getlastknownlocation () is used, the value cannot be obtained inexplicably. If it is null, then it is inexplicably better. After debugging for a long time, it is useless. If you go online to find information, you will get an answer from the previous article.

So let it survive in the future.

Locationmanager = (locationmanager) getsystemservice (context. location_service); Criteria = new criteria (); criteria. setaccuracy (criteria. accuracy_fine); string provider = locationmanager. getbestprovider (criteria, true); locationmanager. requestlocationupdates (provider, 2000, 0, this );

Mostrecentlocation = locationmanager. getlastknownlocation (provider );

You don't need to write more of these six sentences!

At the same time, the current location is not accurate. I don't know how Google uses it. Is it because I have not practiced enough?

After testing, we found that,

Add a while (mostrecentlocation = NULL)

So it will keep searching, and it will be found in about 3 minutes, so be patient.

If you are confused, try it !!

 

In the end, I still want to develop JS web pages. Why should I withdraw it to Android Java?

My thinking is sometimes correct, that is, I cannot grasp the details, and I am inexplicably excited about the inexplicable bugs. I have no patience in solving these problems.

This is a problem!