I’ve wasted a few hours of the last days figuring out a way to do what you (and, me too, by the way) want to do. After looking through the whole source of RemoteViews twice, I figured the only way to accomplish this task is good old, ugly and hacky Java Reflections. Here it is: … Read more
I know this question is rather old but since I originally came here looking for answers, I wanted to share my experience. Yes, you need to implement Parcelable for your Locality class but that is it. If your LocalityList is ONLY a wrapper for ArrayList, then you do not need it. Just use the putParcelableArrayList … Read more
There is a constant defined in Parcelable called CONTENTS_FILE_DESCRIPTOR which is meant to be used in describeContents() to create bitmask return value. Description for CONTENTS_FILE_DESCRIPTOR in the API ref is: Bit masks for use with describeContents(): each bit represents a kind of object considered to have potential special significance when marshalled. Which really means: If … Read more
Here’s how I’d do it… writeToParcel: dest.writeByte((byte) (myBoolean ? 1 : 0)); //if myBoolean == true, byte == 1 readFromParcel: myBoolean = in.readByte() != 0; //myBoolean == true if byte != 0
You can also use Gson to convert an object to a JSONObject and pass it on bundle. For me was the most elegant way I found to do this. I haven’t tested how it affects performance. In Initial Activity Intent activity = new Intent(MyActivity.this,NextActivity.class); activity.putExtra(“myObject”, new Gson().toJson(myobject)); startActivity(activity); In Next Activity String jsonMyObject; Bundle extras … Read more
For in-memory use, Parcelable is far, far better than Serializable. I strongly recommend not using Serializable. You can’t use Parcelable for data that will be stored on disk (because it doesn’t have good guarantees about data consistency when things change), however Serializable is slow enough that I would strongly urge not using it there either. … Read more
You almost got it ! You just need to do : public void writeToParcel(Parcel out, int flags) { out.writeString(_mac); out.writeString(_pan); out.writeInt(_band); out.writeSerializable(_lqis); out.writeTypedList(_devices); } private ZigBeeNetwork(Parcel in) { _mac = in.readString(); _pan = in.readString(); _band = in.readInt(); _lqis = (ArrayList<Integer>) in.readSerializable(); in.readTypedList(_devices, ZigBeeDev.CREATOR); } That’s all! For your list of Integer, you can also do … Read more
You can use putSerializable. Arrays are serializable. To store: bundle.putSerializable(“list”, selected_list); // Here bundle is Bundle object. To access: String[][] passedString_list = (String[][]) bundle.getSerializable(“list”); Example Intent mIntent = new Intent(this, Example.class); Bundle mBundle = new Bundle(); mBundle.putSerializable(“list”, selected_list); mIntent.putExtras(mBundle);
If you need to pass an ArrayList between activities, then I’d go with implementing Parcelable also, as there is no other way around I guess. However I don’t think you will need that much of getters and setters. Here is your Question class which implements Parcelable: public class Question implements Parcelable { public String id; … Read more
Here is my best solution, I would be happy to hear from somebody that had a thought about it. public abstract class A implements Parcelable { private int a; protected A(int a) { this.a = a; } public void writeToParcel(Parcel out, int flags) { out.writeInt(a); } protected A(Parcel in) { a = in.readInt(); } } … Read more