java - Project Tango: Export ADF to sdcard -

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i'm trying export adf project tango sdcard use code sample docs , failing me. i'm able export dialog pop-up proper export path. when hit export button, failure in log

12-16 00:48:12.203      192-603/? e/tango_service_library_context﹕ bool runtimeexportareadescription(const string&, const string&, const string&): internal error occured opening file: /storage/emulated/0/c5617dae-01b0-4825-8ee1-777c17693414 12-16 00:48:12.209    8246-8246/? e/androidruntime﹕ fatal exception: main process: com.projecttango.tango, pid: 8246 com.google.atap.tangoservice.tangoinvalidexception         @ com.google.atap.tango.tangointernal.throwtangoexceptionifneeded(tangointernal.java:118)         @ com.google.atap.tango.tangointernal.exportareadescriptionfile(tangointernal.java:104)         @ com.google.atap.tango.requestimportexportactivity.onexportaccepted(requestimportexportactivity.java:83)         @ com.google.atap.tango.requestimportexportdialog$1.onclick(requestimportexportdialog.java:108)         @ android.view.view.performclick(view.java:4438)         @ android.view.view$performclick.run(view.java:18422)         @ android.os.handler.handlecallback(handler.java:733)         @ android.os.handler.dispatchmessage(handler.java:95)         @ android.os.looper.loop(looper.java:136)         @ android.app.activitythread.main(activitythread.java:5030)         @ java.lang.reflect.method.invoke(native method)         @ com.android.internal.os.zygoteinit$methodandargscaller.run(zygoteinit.java:793)         @ com.android.internal.os.zygoteinit.main(zygoteinit.java:609)

my app has read/write access external storage verified writing file same path worked fine.

<uses-permission android:name="android.permission.read_external_storage"></uses-permission> <uses-permission android:name="android.permission.write_external_storage"></uses-permission>

this export code (which taken tango docs):

        adftoexport = getadfs().get(0);          string externalstoragedirectory = environment.getexternalstoragedirectory().tostring();          /* test verify app can write path         try {             string path = externalstoragedirectory + "/c5617dae-01b0-4825-8ee1-777c17693414";             file file = new file(path);             fileoutputstream fout = new fileoutputstream(file);             outputstreamwriter myoutwriter = new outputstreamwriter(fout);             myoutwriter.append("testing 1 2 3");             myoutwriter.close();             fout.close();         } catch (exception ex) {             log.e(log_tag, "failed write file: " + path, ex);         }         */          intent exportintent = new intent();         exportintent.setclassname(intent_classpackage, intent_importexport_classname);         exportintent.putextra(extra_key_sourceuuid, adftoexport);         exportintent.putextra(extra_key_destinationfile, externalstoragedirectory);         startactivityforresult(exportintent, tango.tango_intent_activitycode);

try hardcoding export path using code below instead of getting external storage's path environment.getexternalstoragedirectory() :

string mapsfolder = "/sdcard/maps"; file file = new file(mapsfolder);

i modified code arealearningsample getappsspaceadffolder() function below , works fine me.

private string getappspaceadffolder()  { //  string mapsfolder = getfilesdir().getabsolutepath() + file.separator + "maps";     string mapsfolder = "/sdcard/maps";     file file = new file(mapsfolder);     if (!file.exists()) {         file.mkdirs();     }     return mapsfolder; }

i yet figure out why environment.getexternalstoragedirectory() doesn't work , throws above mentioned exception , i'll edit answer once have results.


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