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POAndroid File Read and Write
 

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    <p>I am new to Android programming and so kingly pardon me if this question sounds stupid. I want to read and write from a file in an Android Program. I am aware of how to do that in Java. </p> <p>Having read the documentation I wrote the following code. However I am unable to locate where this file is. According to the documentation it should be in folder data/data/package_name.</p> <p>I have Samsung Galaxy S2. I launched the application, then closed it. When I went looking for the file I could not find it. I looked in My Files/data. But there is no data folder inside this data folder. What am I doing wrong?</p> <p>Thank you for the help.</p> <p>Sources: 1. <a href="http://developer.android.com/training/basics/data-storage/files.html" rel="nofollow">http://developer.android.com/training/basics/data-storage/files.html</a> 2. <a href="http://www.vogella.com/articles/AndroidFileBasedPersistence/article.html#overview" rel="nofollow">http://www.vogella.com/articles/AndroidFileBasedPersistence/article.html#overview</a></p> <pre><code>public class MainActivity extends Activity { private void writeFileToInternalStorage() { String eol = System.getProperty("line.separator"); BufferedWriter writer = null; try { writer = new BufferedWriter(new OutputStreamWriter(openFileOutput("myfile.txt", MODE_WORLD_WRITEABLE))); writer.write("This is a test1." + eol); writer.write("This is a test2." + eol); } catch (Exception e) { e.printStackTrace(); } finally { if (writer != null) { try { writer.close(); } catch (IOException e) { e.printStackTrace(); } } } } @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); writeFileToInternalStorage(); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.activity_main, menu); return true; } } </code></pre>
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    1. COalso attach logcat result when your application crashes
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      1. USρяσѕρєя K
    2. COit doesnt crash. I am unable to locate the file where data is written to.
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    3. COto access (outside of the app) the data/data/package_name folder your device must be rooted
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      1. USKirill Kulakov
 

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