I have once implemented Sygic in an app and this is basically how my code looks like (after hours of debug because the documentation was very poor...):
// surfaceView for displaying the "map"
SurfaceView mSygicSurface = (SurfaceView) findViewById(R.id.sygic_surface); // surface
// api status
int mSygicAPIStatus = -2;
// start the drive
ApplicationAPI.startDrive(new ApiCallback() {
public void onRunDrive() {
mSygicSurface.post(new Runnable() {
public void run() {
runDrive(mSygicSurface, getPackageName());
}
});
}
public void onInitApi() // gets called after runDrive();
{
mSygicAPIStatus = ApplicationAPI.InitApi(getPackageName(), true, new ApplicationHandler() { /* nothing relevant here */ }); // api initialization
if (mSygicAPIStatus != 1) {
// error
return;
}
}
});
Once you want to navigate somewhere:
GeoPoint point = new GeoPoint(/* ... */, /* ... */);
final SWayPoint wayPoint = new SWayPoint("", point.getLongitudeE6(), point.getLatitudeE6());
SError error = new SError();
final int returnCode = ApplicationAPI.StartNavigation(error, point, NavigationParams.NpMessageAvoidTollRoadsUnable, true, true, 0);
Carefully note that Sygic uses E6 coordinates.