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PONot Serializable exception Android
 

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  1. PONot Serializable exception Android
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    <p>i´ve posted this question short time ago</p> <p><a href="https://stackoverflow.com/questions/17042130/save-array-of-drawable-to-file-android">Question</a></p> <p>The answer was good but its really hard to do and i have to change most of my app logic.</p> <p>so i searched for another solution, i found this: <a href="https://stackoverflow.com/questions/9219023/best-way-to-serialize-deserialize-an-image-in-android">Best way to Serialize / Deserialize an image in Android</a></p> <p>So using that class i can serialize my arraylist of images without so much pain.</p> <p>I´ve made needed changes to implement it, so my item class is at follows.</p> <pre><code>public class SeccionItem implements Serializable{ String name; String text; ArrayList&lt;SerializableImage&gt; img; SeccionItem() { img = new ArrayList&lt;SerializableImage&gt;(); } } </code></pre> <p>But im still getting NotSerializableException for SeccionItem and i really dont know why.</p> <p>I dont want to save each image on separate files from the input stream because i have many images related to a object and i dont want to have so much files for one part of my app.</p> <p>code of serializableImage</p> <pre><code>public class SerializableImage implements Serializable { private transient static final int NO_IMAGE = -1; private transient Bitmap image; public Bitmap getImage() { return image; } public void setImage(Bitmap image) { this.image = image; } SerializableImage(Bitmap b) { image = b; } private void writeObject(ObjectOutputStream out) throws IOException { if (image != null) { final ByteArrayOutputStream stream = new ByteArrayOutputStream(); image.compress(Bitmap.CompressFormat.PNG, 100, stream); final byte[] imageByteArray = stream.toByteArray(); out.writeInt(imageByteArray.length); out.write(imageByteArray); } else { out.writeInt(NO_IMAGE); } } private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException { final int length = in.readInt(); if (length != NO_IMAGE) { final byte[] imageByteArray = new byte[length]; image = BitmapFactory.decodeByteArray(imageByteArray, 0, length); } } </code></pre> <p>Logcat just says WriteAbortedException caused by NotSerializableException on my call to oos.writeObject(data);</p> <p>Complete stack trace</p> <pre><code>06-11 13:23:51.429: W/System.err(22409): java.io.WriteAbortedException: Read an exception; java.io.NotSerializableException: com.example.app.SeccionItem 06-11 13:23:51.449: W/System.err(22409): at java.io.ObjectInputStream.readNonPrimitiveContent(ObjectInputStream.java:933) 06-11 13:23:51.449: W/System.err(22409): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2262) 06-11 13:23:51.459: W/System.err(22409): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2217) 06-11 13:23:51.459: W/System.err(22409): at java.util.ArrayList.readObject(ArrayList.java:665) 06-11 13:23:51.459: W/System.err(22409): at java.lang.reflect.Method.invokeNative(Native Method) 06-11 13:23:51.469: W/System.err(22409): at java.lang.reflect.Method.invoke(Method.java:507) 06-11 13:23:51.469: W/System.err(22409): at java.io.ObjectInputStream.readObjectForClass(ObjectInputStream.java:1520) 06-11 13:23:51.469: W/System.err(22409): at java.io.ObjectInputStream.readHierarchy(ObjectInputStream.java:1443) 06-11 13:23:51.469: W/System.err(22409): at java.io.ObjectInputStream.readNewObject(ObjectInputStream.java:2112) 06-11 13:23:51.469: W/System.err(22409): at java.io.ObjectInputStream.readNonPrimitiveContent(ObjectInputStream.java:916) 06-11 13:23:51.469: W/System.err(22409): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2262) 06-11 13:23:51.479: W/System.err(22409): at java.io.ObjectInputStream.readObject(ObjectInputStream.java:2217) 06-11 13:23:51.479: W/System.err(22409): at com.example.app.CachedContent.getData(CachedContent.java:35) 06-11 13:23:51.479: W/System.err(22409): at com.example.app.SeccionParser.load(SeccionParser.java:46) 06-11 13:23:51.479: W/System.err(22409): at com.example.app.Downloader.run(Downloader.java:28) 06-11 13:23:51.479: W/System.err(22409): Caused by: java.io.NotSerializableException: com.example.app.SeccionItem 06-11 13:23:51.479: W/System.err(22409): at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1535) 06-11 13:23:51.479: W/System.err(22409): at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1847) 06-11 13:23:51.479: W/System.err(22409): at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1689) 06-11 13:23:51.489: W/System.err(22409): at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1653) 06-11 13:23:51.489: W/System.err(22409): at java.util.ArrayList.writeObject(ArrayList.java:651) 06-11 13:23:51.489: W/System.err(22409): at java.lang.reflect.Method.invokeNative(Native Method) 06-11 13:23:51.499: W/System.err(22409): at java.lang.reflect.Method.invoke(Method.java:507) 06-11 13:23:51.499: W/System.err(22409): at java.io.ObjectOutputStream.writeHierarchy(ObjectOutputStream.java:1219) 06-11 13:23:51.499: W/System.err(22409): at java.io.ObjectOutputStream.writeNewObject(ObjectOutputStream.java:1575) 06-11 13:23:51.499: W/System.err(22409): at java.io.ObjectOutputStream.writeObjectInternal(ObjectOutputStream.java:1847) 06-11 13:23:51.499: W/System.err(22409): at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1689) 06-11 13:23:51.499: W/System.err(22409): at java.io.ObjectOutputStream.writeObject(ObjectOutputStream.java:1653) 06-11 13:23:51.499: W/System.err(22409): at com.example.app.CachedContent.saveData(CachedContent.java:22) 06-11 13:23:51.499: W/System.err(22409): at com.example.app.SeccionParser.load(SeccionParser.java:78) 06-11 13:23:51.499: W/System.err(22409): ... 1 more </code></pre> <p>CachedContent class:</p> <pre><code>public class CachedContent { public static void saveData(String filename,Context context,ArrayList&lt;?&gt; data) { try{ File path = new File(context.getFilesDir(),filename); ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(path)); oos.writeObject(data); oos.close(); }catch(Exception ex) { ex.printStackTrace(); } } public static ArrayList&lt;?&gt; getData(String filename,Context context) { try{ File path = new File(context.getFilesDir(),filename); ObjectInputStream ois = new ObjectInputStream(new FileInputStream(path)); ArrayList&lt;?&gt; data = (ArrayList&lt;?&gt;)ois.readObject(); ois.close(); return data; }catch(Exception ex) { ex.printStackTrace(); return null; } } public static void saveDate(Date date, String filename,Context context) { try{ File path = new File(context.getFilesDir(),filename+"_date"); ObjectOutputStream oos = new ObjectOutputStream(new FileOutputStream(path)); oos.writeObject(date); oos.close(); }catch(Exception ex) { ex.printStackTrace(); } } public static Date getDate(String filename,Context context) { try{ File path = new File(context.getFilesDir(),filename+"_date"); ObjectInputStream ois = new ObjectInputStream(new FileInputStream(path)); Date d =(Date)ois.readObject(); ois.close(); return d; }catch(Exception ex) { ex.printStackTrace(); return null; } } public static boolean hasInternet(Context a){ ConnectivityManager cm = (ConnectivityManager)a.getSystemService(Context.CONNECTIVITY_SERVICE); NetworkInfo netInfo = cm.getActiveNetworkInfo(); if(netInfo!=null &amp;&amp; netInfo.isConnected()){ return true; } return false; } } </code></pre>
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    1. This table or related slice is empty.
    1. PTQuestion
    1. USCommunity
    1. USNanoc
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    2. PL
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    1. This table or related slice is empty.
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    1. COAre `SeccionItem` or `SerializableImage` nested classes? They have to be defined in their own files, it won't work as nested classes.
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      1. PONot Serializable exception Android
      1. USTorben Kohlmeier
    2. COthey are on their own file each one
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      1. PONot Serializable exception Android
      1. USNanoc
    3. COPlease add the logcat and the code for `SerializableImage`.
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      1. PONot Serializable exception Android
      1. USTorben Kohlmeier
 

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