uploading database file in assets not returning a record

Posted by Alexander on Stack Overflow See other posts from Stack Overflow or by Alexander
Published on 2012-06-05T10:18:37Z Indexed on 2012/06/05 10:40 UTC
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I have a problem with a database file not being read I have added the database file in assets called mydb but when i run my code it says its not being located. It is calling this toast Toast.makeText(this, "No contact found", Toast.LENGTH_LONG).show(); This is being called because no records are being returned. This is an example form Android Application Development book.

public class DatabaseActivity extends Activity {
    /** Called when the activity is first created. */
    TextView quest, response1, response2;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextView quest = (TextView) findViewById(R.id.quest);


        try {           
            String destPath = "/data/data/" + getPackageName() + "/databases/MyDB";
            File f = new File(destPath);            
            if (!f.exists()) {          
                CopyDB( getBaseContext().getAssets().open("mydb"), 
                    new FileOutputStream(destPath));
            }
        } catch (FileNotFoundException e) {         
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        }

        DBAdapter db = new DBAdapter(this); 


        //---get a contact---
        db.open();
        Cursor c = db.getContact(2);
        if (c.moveToFirst())        
            DisplayContact(c);
        else
            Toast.makeText(this, "No contact found", Toast.LENGTH_LONG).show();
        db.close();



    }

    public void CopyDB(InputStream inputStream, OutputStream outputStream) 
    throws IOException {
        //---copy 1K bytes at a time---
        byte[] buffer = new byte[1024];
        int length;
        while ((length = inputStream.read(buffer)) > 0) {
            outputStream.write(buffer, 0, length);
        }
        inputStream.close();
        outputStream.close();
    }

    public void DisplayContact(Cursor c)
    {
    quest.setText(String.valueOf(c.getString(1)));      
        //quest.setText(String.valueOf("this is a text string"));    
    } 
}

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