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    <p>I actually had this issue and since my application wants to store a more complex object I did this I took the object serialized it then stored it to a file. I can then check from any activity this file and get the full object. No need to use the string key garbage of prefs and Bundles.</p> <pre><code>/** * @param act - current activity calling the function * @return false if global Object not set and the dat file is not there or empty */ public static void setInFile(Activity act, Object_VO obj) { ((Object) act.getApplication()).setObjectState(obj); String ser = SerializeObject.objectToString(obj); if (ser!= null &amp;&amp; !ser.equalsIgnoreCase("")) { SerializeObject.WriteSettings(act, ser, "android.dat"); } else { SerializeObject.WriteSettings(act, "", "android.dat"); } } </code></pre> <p>You will need this to serialize and deserialize:</p> <pre><code>/** * Take an object and serialize and then save it to preferences * */ public class SerializeObject { /** * Create a String from the Object using Base64 encoding * @param object - any Object that is Serializable * @return - Base64 encoded string. */ public static String objectToString(Serializable object) { ByteArrayOutputStream out = new ByteArrayOutputStream(); try { new ObjectOutputStream(out).writeObject(object); byte[] data = out.toByteArray(); out.close(); out = new ByteArrayOutputStream(); Base64OutputStream b64 = new Base64OutputStream(out,0); b64.write(data); b64.close(); out.close(); return new String(out.toByteArray()); } catch (IOException e) { e.printStackTrace(); } return null; } /** * Creates a generic object that needs to be cast to its proper object * from a Base64 ecoded string. * * @param encodedObject * @return */ public static Object stringToObject(String encodedObject) { try { return new ObjectInputStream(new Base64InputStream( new ByteArrayInputStream(encodedObject.getBytes()), 0)).readObject(); } catch (Exception e) { e.printStackTrace(); } return null; } /** * Save serialized settings to a file * @param context * @param data */ public static void WriteSettings(Context context, String data, String filename){ FileOutputStream fOut = null; OutputStreamWriter osw = null; try{ fOut = context.openFileOutput(filename, Context.MODE_PRIVATE); osw = new OutputStreamWriter(fOut); osw.write(data); osw.flush(); //Toast.makeText(context, "Settings saved",Toast.LENGTH_SHORT).show(); } catch (Exception e) { e.printStackTrace(); // Toast.makeText(context, "Settings not saved",Toast.LENGTH_SHORT).show(); } finally { try { if(osw!=null) osw.close(); if (fOut != null) fOut.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * Read data from file and put it into a string * @param context * @param filename - fully qualified string name * @return */ public static String ReadSettings(Context context, String filename){ StringBuffer dataBuffer = new StringBuffer(); try{ // open the file for reading InputStream instream = context.openFileInput(filename); // if file the available for reading if (instream != null) { // prepare the file for reading InputStreamReader inputreader = new InputStreamReader(instream); BufferedReader buffreader = new BufferedReader(inputreader); String newLine; // read every line of the file into the line-variable, on line at the time while (( newLine = buffreader.readLine()) != null) { // do something with the settings from the file dataBuffer.append(newLine); } // close the file again instream.close(); } } catch (java.io.FileNotFoundException f) { // do something if the myfilename.txt does not exits Log.e("FileNot Found in ReadSettings", "filename = " + filename); } catch (IOException e) { Log.e("IO Error in ReadSettings", "filename = " + filename); } return dataBuffer.toString(); } } </code></pre> <p>and finally you need to create global object state you can reference.</p> <pre><code>package com.utils; /** * Global class to hold the application state of the object * */ public class ObjectState extends Application { private Object_VO obj; public Object_VO getObjectState() { return this.obj; } public void setObjectState(Object_VO o) { this.obj = o; } } </code></pre> <p>Oh yeah and you need to update your AndroidManifest.xml file to include the reference to the ObjectState since it references Application like this...</p> <pre><code> &lt;application android:name="com.utils.ObjectState" android:icon="@drawable/icon" android:label="@string/app_name"&gt; &lt;activity android:name=".MainActivity" android:label="@string/app_name"&gt; &lt;intent-filter&gt; &lt;action android:name="android.intent.action.MAIN" /&gt; &lt;category android:name="android.intent.category.LAUNCHER" /&gt; &lt;/intent-filter&gt; &lt;/activity&gt; </code></pre>
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