GPS Debug Record

GPS debug record:
1. The GPS data is incomplete and the log information is as follows:
W / LocationManagerService (392): Dropping incomplete location: Location [gps 22.563652,113.866384 acc = ??? t =?!? Et = + 3m15s512ms alt = 128.724
W / LocationManagerService (392): Dropping incomplete location: Location [gps 22.563652,113.866384 acc = ??? t =?!? Et = + 3m15s514ms alt = 128.724
This is because GPS data was strictly judged in Android 4.2, and the isComplete () function was added; therefore, for compatibility with 4.0 systems, it can be shielded by default:
Drop isComplete () ----- Force reporting data frameworks / base / services / java / com / android / server / LocationManagerService.java


2. The content of the passed data cannot be passed to the bundle data
In the original mLocation.getExtras (). PutString (LOCATION_PROVIDER, GPS_CFG_GPS); ----- This forces the assignment to extras
Log.v (TAG, "reportLocation" + mLocationExtras.getString (LOCATION_PROVIDER)); The null value has been printed all the time, which is suspected to be a problem with data transmission.

But in 4.2 getExtras () ------ The default bundle passed only satllites: as seen in the following log
D / LocationManagerService (376): incoming location: Location [gps 22.564725,113.865403 acc = ??? t =?!? Et = + 6m12s856ms alt = -32.327 {Bundle [{satellites = 0}]
}]

Solution: You need to operate satllites in a similar way to pass data:
mLocationExtras.putString (LOCATION_PROVIDER, GPS_CFG_GPS);
mLocationExtras.putInt ("satellites", svCount);
The data passed like this is normal:
D / LocationManagerService (356): incoming location: Location [gps 22.564725,113.865403 acc = ??? t =?!? Et = + 7m25s937ms alt = -32.327 {Bundle [{location_provi
der = gos}]}]]
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Original link: https://blog.csdn.net/tianruxishui/article/details/41514815