java - permission denied write with USB pen drive -


this androidmanifest.xml

<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.example.abc2"     android:versioncode="1"     android:versionname="1.1.8" >     <uses-sdk         android:minsdkversion="8"         android:targetsdkversion="18" />      <uses-permission android:name="android.permission.receive_boot_completed" />     <uses-permission android:name="android.permission.disable_keyguard" />     <uses-permission android:name="android.permission.wake_lock" />     <uses-permission android:name="android.permission.read_phone_state"/>     <uses-permission android:name="android.permission.write_external_storage" />      <uses-permission android:name="android.permission.internet" />     <uses-permission android:name="android.permission.access_network_state" />

and m trying copy apps's database usb pendrive, last time using sd card, working fine, after have change sd card path /mnt/sda/sda2 error permission denied, /mnt/sda/sda2 usb pendrive path

this copy file function copy database pendrive 

private void copyfile(string inputpath, string inputfile, string outputpath) {          inputstream in = null;         outputstream out = null;         try {              //create output directory if doesn't exist             file dir = new file (outputpath);              if (!dir.exists())             {                 dir.mkdirs();             }               in = new fileinputstream(inputpath + inputfile);                     out = new fileoutputstream(outputpath + inputfile);              byte[] buffer = new byte[1024];             int read;             while ((read = in.read(buffer)) != -1) {                 out.write(buffer, 0, read);             }             in.close();             in = null;                  // write output file (you have copied file)                 out.flush();             out.close();             out = null;               toast.maketext(ultilityactivity.this, "export successful!", toast.length_short).show();          }  catch (filenotfoundexception fnfe1) {             log.e("tag", fnfe1.getmessage());             toast.maketext(ultilityactivity.this, "export failed", toast.length_short).show();         }                 catch (exception e) {             log.e("tag", e.getmessage());             toast.maketext(ultilityactivity.this, "export failed", toast.length_short).show();         }      }     }

this how call copyfile function

copyfile("/data/data/com.example.abc2/databases/","db_busdata","/mnt/sda/sda2/");

last time copied sd card , code

copyfile("/data/data/com.example.abc2/databases/","db_busdata","/mnt/sdcard/");

copied sd card working, usb pendrive errror :-

03-10 10:58:13.204: d/mainactivity(1832): open failed: eacces (permission denied) 03-10 10:58:13.204: d/mainactivity(1832): java.io.ioexception: open failed: eacces (permission denied)

it need mount usb drive? can mount in programmatically ? how? please give me example?

in android os, usb pendrive know sd card,
but, permission in androidmanifest.xml need declare different permission, usb external storage need media enable permission below :-

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

Comments

Post a Comment

Popular posts from this blog

Android layout hidden on keyboard show -

i have strange problem layout. when tap on edittext , keyboard shown edittext stay on bottom , when tap on to hide keyboard , keyboard hides , edittext go should when want input text. when tap again, keyboard shown , edittext goes down behind keyboard... <relativelayout android:layout_width="match_parent" android:layout_height="match_parent" > <scrollview android:layout_width="match_parent" android:layout_height="fill_parent" android:above="@+id/rl_commands"> <textview android:layout_width="match_parent" android:layout_height="wrap_content"/> </scrollview> <relativelayout android:layout_width="match_parent android:layout_height="24dp" android:id="@+id/rl_commands" android:alignparentbottom="true"> ...
Read more

google app engine - 403 Forbidden POST - Flask WTForms -

i have flask application running on google app engine. trying submit form built using wtform , keep getting following error. 403 forbidden: don't have permission access requested resource. either read-protected or not readable server. location.html (part of code) <form method=post action="/home/location"> .... <button type="submit" class="btn btn-primary" value="submit"> directions </button> </form> main.py @app.route('/home/location', methods=['post', 'get']) def location(): form = cfcdirections.direction(request.form) print(request.method) if request.method == 'post' , form.validate(): print("after if") directions = cfcdirections() street_no = directions.no street = directions.street suburb = directions.suburb postcode = directions.postcode ...
Read more

c - Why would PK11_GenerateRandom() return an error -8023? -

i looking through internet trying find source of pk11_generaterandom() function see why function fail. have program uses function when moved new flavor of linux, fails after forking ( fork() ) since not believe there problem nss, suspect doing incorrectly disregarded in older versions of linux new 1 there issue. the openssl package same on 'good' , 'bad' server: openssl 0.9.8e-fips-rhel5 01 jul nss rpm differs though. 'good' has nss-3.12.2.0-2.el5 and bas has version nss-3.15.3-4.el5_10 the 'good' server uses quite obsolete linux: linux 2.6.18-128.el5 #1 smp wed jan 21 08:45:05 est 2009 x86_64 x86_64 x86_64 gnu/linux enterprise linux enterprise linux server release 5.3 (carthage) red hat enterprise linux server release 5.3 (tikanga) the 'bad' server newer: linux bad 2.6.18-371.4.1.el5 #1 smp wed jan 29 11:05:49 pst 2014 x86_64 x86_64 x86_64 gnu/linux oracle linux server release 5.10 red hat enterprise linux server release...
Read more