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POGet all SharedPreferences names and all their keys?
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  1. POGet all SharedPreferences names and all their keys?
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    copied!<p>I'm making backup program, that saved the phone <code>SharedPreferences</code> data into a file of my own structure. But I don't know how to list them all, which I need:</p> <p>For example, 2 program saved their SharedPreferences with names <code>"Program A"</code> and <code>"Program B"</code>. I need to obtains thay String array contain these 2 names. Then, I use <code>getSharedPreferences</code> with "Program A", I need to get all keys that program has saved.</p> <p>Is it really possible?</p> <p>EDIT1: I DON'T know what programs/activities on the phone. I want to get ALL the <code>keys</code> that every programs saved. It just like you back up all your phone data, but only SharedPreferences values. </p> <p>For example: Your phone has 10 programs, each creates a SharedPreferences named <code>Program 1</code> to <code>Program 10</code> (but of course, whatever name they want). And I would like to obtain all these <code>Program 1</code> to <code>Program 10</code> String. Then, if <code>Program 1</code> has 5 keys called <code>Key 1</code> to <code>Key 5</code>, I want to obtain these keys name.</p> <p>EDIT2: According to <code>NikolaMKD</code> guide, this is what I've done so far, but the list return all programs, with "No Preferences" at all line, even at the first, I saved the SharedPreferences with my activity:</p> <pre><code>public class Test extends ListActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); SharedPreferences preferences = getSharedPreferences("Test", 1); // No matter what name is: Test or the package name Editor editor = preferences.edit(); editor.putInt("TestKey", 0); editor.commit(); List&lt;ResolveInfo&gt; Temp = getPackageManager().queryIntentActivities( new Intent(Intent.ACTION_MAIN, null) .addCategory(Intent.CATEGORY_LAUNCHER), 0); String[] App = new String[Temp.size()]; for (int i = 0; i &lt; Temp.size(); i++) { App[i] = Temp.get(i).activityInfo.name; FileReader reader = null; try { reader = new FileReader("/data/data/" + App[i] + "/shared_prefs/" + App[i] + "_preferences.xml"); } catch (FileNotFoundException e) { reader = null; } if (reader != null) App[i] += " (Have Prefereces)"; else App[i] += " (No Prefereces)"; } setListAdapter(new ArrayAdapter&lt;String&gt;(this, R.layout.main, App)); } } </code></pre>
 

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