Hey, i would use graphhopper to draw route between two points, but i can’t load graphs ma code sample:
void loadGraphStorage() {
protected Path saveDoInBackground(Void... v) throws Exception {
GraphHopper tmpHopp = new GraphHopper().forMobile();
String folderpath = new File("/storage/sdcard1/", currentArea).getAbsolutePath() + "-gh";
File folder = new File(folderpath);
if(folder.isDirectory() && folder.exists() && folder.canRead() && folder.canWrite()) {
tmpHopp.load(folderpath);
log("found graph " + tmpHopp.getGraphHopperStorage().toString() + ", nodes:" + tmpHopp.getGraphHopperStorage().getNodes());
hopper = tmpHopp;
}else{
logUser("No access to folder");
}
return null;
}
protected void onPostExecute(Path o) {
if (hasError()) {
logUser("An error happened while creating graph:"
+ getErrorMessage());
} else {
logUser("Finished loading graph. Long press to define where to start and end the route.");
}
I have my map and graph files on sdcard. I read map file properly but when i try to load graphs on line tmpHopp.load(folderpath); i occure an error:
An error happened while creating graph: To avoid reading partial data we need to obtain the read lock but it failed. In /storage/sdcard1/poland-gh
Folder path looks fine, files also looks good i don’t how can i fix it. Could you help me ? I use graphhoper 0.10-SNAPSHOT. I generete files from script in the same version.