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POAndroid - Sdcard doesn't create / copy a file
 

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  1. POAndroid - Sdcard doesn't create / copy a file
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    <p>I am having some problems copying a file from a folder to other folder; both are in SDCard.</p> <p>I want to copy from <code>/sdcard/folder1/file.db</code> to <code>/sdcard/folder1/folder2</code>(creating if doesn't exist)<code>/file.db</code></p> <p>AndroidManifest.xml</p> <pre><code>&lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"&gt;&lt;/uses-permission&gt; </code></pre> <p>My code</p> <pre><code>public void realizarBackup() { String nombrebd = "BRSAndroid.db"; File sd = new File(Environment.getExternalStorageDirectory().getPath()); if (sd.exists() &amp;&amp; sd.canWrite()){ File bdoriginal = new File(sd.getAbsolutePath() + "/BRSAndroid/" + nombrebd); File directoriobackup = new File(sd.getAbsolutePath() + "/BRSAndroid/Backup/"); File backup = new File(sd.getAbsolutePath() + "/BSRAndroid/Backup/" + nombrebd); directoriobackup.mkdir(); // It creates this folder, this doesn't fail. if (directoriobackup.exists()) { try { if(backup.canRead()){ if(backup.canWrite()) backup.createNewFile(); else Log.e("Error", "No tiene permisos para escribir."); } else // STOPS HERE Log.e("Error", "No tiene permisos para leer."); } catch (IOException e1) { Log.e("Error", "Error al crear el fichero BRSAndroid en la carpeta de destino."); } if(backup.exists()) { try { InputStream entrada = new FileInputStream(bdoriginal); OutputStream salida = new FileOutputStream(backup); byte[] buf = new byte[1024]; int longitud; while((longitud = entrada.read(buf)) &gt; 0){ salida.write(buf, 0, longitud); } entrada.close(); salida.close(); } catch (Exception e){ Log.e("Error", "Error a la hora de hacerse el backup."); } } } else { Log.e("Error", "Error en la creación del directorio /Backup/."); } } } </code></pre> <p>What am I doing wrong? I get stuck right here and I can't go ahead.</p> <p>I have discovered that the backup hasn't got read permissions.</p> <p>LogCat log:</p> <pre><code>07-25 09:37:05.578: W/System.err(16602): java.io.IOException: open failed: ENOENT (No such file or directory) 07-25 09:37:05.578: W/System.err(16602): at java.io.File.createNewFile(File.java:940) 07-25 09:37:05.586: W/System.err(16602): at NS.Android.Clientes.ClientesActivity.realizarBackup(ClientesActivity.java:1602) 07-25 09:37:05.586: W/System.err(16602): at NS.Android.Clientes.ClientesActivity$4.onClick(ClientesActivity.java:398) 07-25 09:37:05.586: W/System.err(16602): at android.view.View.performClick(View.java:4222) 07-25 09:37:05.586: W/System.err(16602): at android.view.View$PerformClick.run(View.java:17337) 07-25 09:37:05.594: W/System.err(16602): at android.os.Handler.handleCallback(Handler.java:615) 07-25 09:37:05.594: W/System.err(16602): at android.os.Handler.dispatchMessage(Handler.java:92) 07-25 09:37:05.594: W/System.err(16602): at android.os.Looper.loop(Looper.java:137) 07-25 09:37:05.594: W/System.err(16602): at android.app.ActivityThread.main(ActivityThread.java:4895) 07-25 09:37:05.594: W/System.err(16602): at java.lang.reflect.Method.invokeNative(Native Method) 07-25 09:37:05.601: W/System.err(16602): at java.lang.reflect.Method.invoke(Method.java:511) 07-25 09:37:05.601: W/System.err(16602): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:994) 07-25 09:37:05.601: W/System.err(16602): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:761) 07-25 09:37:05.601: W/System.err(16602): at dalvik.system.NativeStart.main(Native Method) 07-25 09:37:05.609: W/System.err(16602): Caused by: libcore.io.ErrnoException: open failed: ENOENT (No such file or directory) 07-25 09:37:05.609: W/System.err(16602): at libcore.io.Posix.open(Native Method) 07-25 09:37:05.609: W/System.err(16602): at libcore.io.BlockGuardOs.open(BlockGuardOs.java:110) 07-25 09:37:05.609: W/System.err(16602): at java.io.File.createNewFile(File.java:933) 07-25 09:37:05.617: W/System.err(16602): ... 13 more </code></pre> <h2>Solved changing path from File to String.</h2> <pre><code>String ruta = Environment.getExternalStorageDirectory().getPath()+"/BRSAndroid/" String nombrebd = "BRSAndroid.db"; File bdoriginal = new File(ruta + nombrebd); File backup = new File(ruta + "Backup/" + nombrebd); </code></pre>
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    1. USJose Antonio Benitez Montero
    1. USJose Antonio Benitez Montero
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      1. POAndroid - Sdcard doesn't create / copy a file
      1. USArun C
    2. CONo I don't, I'm going to update with Logcat information.
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      1. POAndroid - Sdcard doesn't create / copy a file
      1. USJose Antonio Benitez Montero
 

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