android - Using Parceble to communicate between activities -

so trying pass object 1 activity using parceble provided in android right thing use in case.

this bean class have serialized implementing parceble

customer.class

public class customer implements parcelable {      int a;     string name;      public customer(int ab , string n) {     this.a=ab;     this.name=n;     }      public int geta() {         return a;     }      public void seta(int a) {         this.a = a;     }      public string getname() {         return name;     }      public void setname(string name) {         this.name = name;     }       public customer(parcel in) {          a= in.readint();             name= in.readstring();         //readfromparcel(in);     }      @override     public int describecontents() {         // todo auto-generated method stub         return 0;     }      @override     public void writetoparcel(parcel dest, int flags) {         dest.writestring(name);         dest.writeint(a);     }      public static final parcelable.creator<customer> creator= new parcelable.creator<customer>() {          @override         public customer createfromparcel(parcel source) {             return new customer(source);         }          @override         public customer[] newarray(int size) {             return new customer[size];         }     };       private void readfromparcel(parcel in) {          a= in.readint();             name= in.readstring();    } } 

mainactivity.class

public class mainactivity extends activity {      button b;     customer c;       @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);         setcontentview(r.layout.activity_main);          b=(button) findviewbyid(r.id.button1);          c=new customer(33,"nn");          b.setonclicklistener(new view.onclicklistener() {              @override             public void onclick(view v) {                 intent i=new intent(mainactivity.this,customactivity.class);                 i.putextra("myobj", c);                 startactivity(i);             }         });     }  } 

customactivity.class

public class customactivity extends activity{      @override     protected void oncreate(bundle savedinstancestate) {         super.oncreate(savedinstancestate);          intent it=getintent();         customer c=(customer)it.getparcelableextra("myobj");          system.out.println("and object "+c.geta()+"/"+c.getname());     } } 

and output in logcat:

05-15 12:02:56.014: i/system.out(25581): , object 2/null 

the problem in readfromparcel method. rule "the sequence of members must same while writing or reading members of parcelable objects"

so have change readfromparcel(parcel in) from

private void readfromparcel(parcel in) {             a= in.readint();             name= in.readstring();    } 

to

private void readfromparcel(parcel in) {                       name= in.readstring();        a= in.readint();      } 

because writetoparcel(..) writes name first , a.

parcelable interface overview can reference you.