gistfile1.java

import android.os.Parcel;
import android.os.Parcelable;

import java.util.HashMap;
import java.util.Map;


public class ActivityParms implements Parcelable {

    private Map<String, Object> parms;

    public ActivityParms() {
        parms = new HashMap<String, Object>();
    }

    private ActivityParms(Parcel in) {
        parms = new HashMap<String, Object>();
        readFromParcel(in);
    }

    public void writeToParcel(Parcel dest, int flags) {

        dest.writeInt(parms.size());

        for (String s : parms.keySet()) {
            dest.writeString(s);
            dest.writeValue(parms.get(s));
        }
    }

    public void readFromParcel(Parcel in) {

        int count = in.readInt();

        for (int i = 0; i < count; i++) {
            parms.put(in.readString(), in.readValue(Object.class.getClassLoader()));
        }
    }

    public ActivityParms put(String key, Object value) {
        parms.put(key, value);
        return this;
    }

    public <T> T get(String key) {
        return parms.get(key) == null ? null : (T) parms.get(key);
    }

    public int describeContents() {
        return 0;
    }

    public static final Parcelable.Creator<ActivityParms> CREATOR = new Parcelable.Creator<ActivityParms>() {

        public ActivityParms createFromParcel(Parcel in) {
            return new ActivityParms(in);
        }

        public ActivityParms[] newArray(int size) {
            return new ActivityParms[size];
        }
    };
}