How to send an object from one Android Activity to another using Intents

Question

How can I pass an object of a custom type from one Activity to another using the putExtra   method of the class Intent

User · Answer

You can send serializable object through intent     send where details is object ClassName details   new ClassName    Intent i   new Intent context  EditActivity class   i putExtra  Editing   details   startActivity i       receive ClassName model    ClassName  getIntent   getSerializableExtra  Editing     And   Class ClassName implements Serializable

User · Answer

I found that the fast way is by using HashMap   first put your Object or your list of object in a HashMap   second send it through putExtra method     first HashMap lt String Customer gt  customerMap new HashMap lt  gt     customerMap put  quot customer quot   yourCustomerObjects      then you put and send this hashMap object through an intent Intent i  new Intent YourCurrentActivity this Destination class   i putExtra  quot customerMap quot  customerMap   startActivity i     so then you get this data at the destinations class like this   HashMap lt String Customer gt  received  HashMap lt String Customer gt  getIntent   getSerializableExtra  quot customerMap quot       then you get your object from the HashMap  Customer mCustmer received get  quot customer quot

User · Answer

In your first Activity   intent putExtra  myTag   yourObject     And in your second one   myCustomObject myObject    myCustomObject  getIntent   getSerializableExtra  myTag      Don t forget to make your custom object Serializable    public class myCustomObject implements Serializable

User · Answer

You ll need to serialize your object into some kind of string representation  One possible string representation is JSON  and one of the easiest ways to serialize to from JSON in android  if you ask me  is through Google GSON   In that case you just put the string return value from  new Gson    toJson myObject   and retrieve the string value and use fromJson to turn it back into your object   If your object isn t very complex  however  it might not be worth the overhead  and you could consider passing the separate values of the object instead

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public class SharedBooking implements Parcelable       public int account id      public Double betrag      public Double betrag effected      public int taxType      public int tax      public String postingText       public SharedBooking             account id   0          betrag   0 0          betrag effected   0 0          taxType   0          tax   0          postingText                  public SharedBooking Parcel in            account id   in readInt            betrag   in readDouble            betrag effected   in readDouble            taxType   in readInt            tax   in readInt            postingText   in readString               public int getAccount id             return account id            public void setAccount id int account id            this account id   account id            public Double getBetrag             return betrag            public void setBetrag Double betrag            this betrag   betrag            public Double getBetrag effected             return betrag effected            public void setBetrag effected Double betrag effected            this betrag effected   betrag effected            public int getTaxType             return taxType            public void setTaxType int taxType            this taxType   taxType            public int getTax             return tax            public void setTax int tax            this tax   tax            public String getPostingText             return postingText            public void setPostingText String postingText            this postingText   postingText            public int describeContents                TODO Auto-generated method stub         return 0            public void writeToParcel Parcel dest  int flags            dest writeInt account id           dest writeDouble betrag           dest writeDouble betrag effected           dest writeInt taxType           dest writeInt tax           dest writeString postingText               public static final Parcelable Creator lt SharedBooking gt  CREATOR   new Parcelable Creator lt SharedBooking gt                  public SharedBooking createFromParcel Parcel in                        return new SharedBooking in                     public SharedBooking   newArray int size                        return new SharedBooking size                           Passing the data   Intent intent   new Intent getApplicationContext   YourActivity class   Bundle bundle   new Bundle    i putParcelableArrayListExtra  data    ArrayList lt   extends Parcelable gt   dataList   intent putExtras bundle   startActivity intent     Retrieving the data   Bundle bundle   getIntent   getExtras    dataList2   getIntent   getExtras   getParcelableArrayList  data

User · Answer

Easiest and java way of doing is   implement serializable in your pojo model class  Recommended for Android for performance view    make model parcelable

User · Answer

Thanks for parcelable help but i found one more optional solution    public class getsetclass implements Serializable           private int dt   10        pass any object  drwabale          public int getDt                 return dt                     public void setDt int dt                this dt   dt                    In Activity One  getsetclass d   new getsetclass                     d setDt 50                   LinkedHashMap lt String  Object gt  obj   new LinkedHashMap lt String  Object gt                     obj put  hashmapkey   d               Intent inew   new Intent SgParceLableSampelActivity this                      ActivityNext class               Bundle b   new Bundle                b putSerializable  bundleobj   obj               inew putExtras b               startActivity inew     Get Data In Activity 2   try    setContentView R layout main               Bundle bn   new Bundle                bn   getIntent   getExtras                HashMap lt String  Object gt  getobj   new HashMap lt String  Object gt                 getobj    HashMap lt String  Object gt   bn getSerializable  bundleobj                getsetclass  d    getsetclass  getobj get  hashmapkey              catch  Exception e                Log e  Err   e getMessage

User · Answer

I struggled with the same problem  I solved it by using a static class  storing any data I want in a HashMap  On top I use an extension of the standard Activity class where I have overriden the methods onCreate an onDestroy to do the data transport and data clearing hidden  Some ridiculous settings have to be changed e g  orientation-handling   Annotation  Not providing general objects to be passed to another Activity is pain in the ass  It s like shooting oneself in the knee and hoping to win a 100 metres   Parcable  is not a sufficient substitute  It makes me laugh    I don t want to implement this interface to my technology-free API  as less I want to introduce a new Layer    How could it be  that we are in mobile programming so far away from modern paradigm

User · Answer

First implement  Parcelable in your class  Then pass object like this   SendActivity java  ObjectA obj   new ObjectA        Set values etc   Intent i   new Intent this  MyActivity class   i putExtra  com package ObjectA   obj    startActivity i     ReceiveActivity java  Bundle b   getIntent   getExtras    ObjectA obj   b getParcelable  com package ObjectA      The package string isn t necessary  just the string needs to be the same in both Activities   REFERENCE

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Start another activity from this activity pass parameters via Bundle Object  Intent intent   new Intent this  YourActivity class   Intent putExtra AppConstants EXTRAS MODEL  cModel   startActivity intent   Retrieve on another activity  YourActivity   ContentResultData cModel   getIntent   getParcelableExtra AppConstants EXTRAS MODEL

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Your class should implements Serializable or Parcelable   public class MY CLASS implements Serializable   Once done you can send an object on putExtra  intent putExtra  KEY   MY CLASS instance    startActivity intent     To get extras you only have to do  Intent intent   getIntent    MY CLASS class    MY CLASS  intent getExtras   getSerializable  KEY      If your class implements Parcelable use next  MY CLASS class    MY CLASS  intent getExtras   getParcelable  KEY      I hope it helps  D

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If you re just passing objects around then Parcelable was designed for this  It requires a little more effort to use than using Java s native serialization  but it s way faster  and I mean way  WAY faster    From the docs  a simple example for how to implement is      simple class that just has one member property as an example public class MyParcelable implements Parcelable       private int mData          everything below here is for implementing Parcelable            99 9  of the time you can just ignore this      Override     public int describeContents             return 0                write your object s data to the passed-in Parcel      Override     public void writeToParcel Parcel out  int flags            out writeInt mData                 this is used to regenerate your object  All Parcelables must have a CREATOR that implements these two methods     public static final Parcelable Creator lt MyParcelable gt  CREATOR   new Parcelable Creator lt MyParcelable gt              public MyParcelable createFromParcel Parcel in                return new MyParcelable in                      public MyParcelable   newArray int size                return new MyParcelable size                            example constructor that takes a Parcel and gives you an object populated with it s values     private MyParcelable Parcel in            mData   in readInt              Observe that in the case you have more than one field to retrieve from a given Parcel  you must do this in the same order you put them in  that is  in a FIFO approach    Once you have your objects implement Parcelable it s just a matter of putting them into your Intents with putExtra     Intent i   new Intent    i putExtra  name of extra   myParcelableObject     Then you can pull them back out with getParcelableExtra     Intent i   getIntent    MyParcelable myParcelableObject    MyParcelable  i getParcelableExtra  name of extra      If your Object Class implements Parcelable and Serializable then make sure you do cast to one of the following   i putExtra  parcelable extra    Parcelable  myParcelableObject   i putExtra  serializable extra    Serializable  myParcelableObject

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Create Android Application  File    New    Android Application  Enter Project name  android-pass-object-to-activity  Pakcage  com hmkcode android  Keep other defualt selections  go Next  till you reach Finish  Before start creating the App we need to create POJO class    Person    which we will use to send object from one activity to another  Notice that the class is implementing Serializable interface   Person java  package com hmkcode android  import java io Serializable   public class Person implements Serializable       private static final long serialVersionUID   1L       private String name      private int age              getters  amp  setters           Override     public String toString             return  Person  name     name      age     age                     Two Layouts for Two Activities  activity main xml   lt LinearLayout xmlns android  http   schemas android com apk res android  xmlns tools  http   schemas android com tools  android layout width  match parent  android layout height  match parent  android orientation  vertical  tools context   MainActivity   gt    lt LinearLayout     android layout width  fill parent      android layout height  wrap content      android orientation  horizontal  gt       lt TextView         android id    id tvName          android layout width  100dp          android layout height  wrap content          android layout gravity  center          android gravity  center horizontal          android text  Name    gt        lt EditText         android id    id etName          android layout width  wrap content          android layout height  wrap content           android ems  10   gt           lt requestFocus   gt       lt  EditText gt   lt  LinearLayout gt    lt LinearLayout      android layout width  fill parent      android layout height  wrap content      android orientation  horizontal  gt   lt TextView     android id    id tvAge      android layout width  100dp      android layout height  wrap content      android layout gravity  center      android gravity  center horizontal      android text  Age    gt   lt EditText     android id    id etAge      android layout width  wrap content      android layout height  wrap content      android ems  10    gt   lt  LinearLayout gt    lt Button     android id    id btnPassObject      android layout width  wrap content      android layout height  wrap content      android layout gravity  center horizontal      android text  Pass Object to Another Activity    gt    lt  LinearLayout gt    activity another xml   lt LinearLayout xmlns android  http   schemas android com apk res android  xmlns tools  http   schemas android com tools  android layout width  match parent  android layout height  match parent  android orientation  vertical    gt    lt TextView     android id    id tvPerson      android layout height  wrap content      android layout width  fill parent      android layout gravity  center      android gravity  center horizontal     gt    lt  LinearLayout gt    Two Activity Classes  1 ActivityMain java  package com hmkcode android   import android os Bundle  import android app Activity  import android content Intent  import android view View  import android view View OnClickListener  import android widget Button  import android widget EditText   public class MainActivity extends Activity implements OnClickListener    Button btnPassObject  EditText etName  etAge   Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity main        btnPassObject    Button  findViewById R id btnPassObject       etName    EditText  findViewById R id etName       etAge    EditText  findViewById R id etAge        btnPassObject setOnClickListener this       Override public void onClick View view            1  create an intent pass class name or intnet action name      Intent intent   new Intent  com hmkcode android ANOTHER ACTIVITY            2  create person object     Person person   new Person        person setName etName getText   toString         person setAge Integer parseInt etAge getText   toString              3  put person in intent data     intent putExtra  person   person           4  start the activity     startActivity intent          2 AnotherActivity java  package com hmkcode android   import android app Activity  import android content Intent  import android os Bundle  import android widget TextView   public class AnotherActivity extends Activity    TextView tvPerson    Override protected void onCreate Bundle savedInstanceState           TODO Auto-generated method stub     super onCreate savedInstanceState       setContentView R layout activity another           1  get passed intent      Intent intent   getIntent            2  get person object from intent     Person person    Person  intent getSerializableExtra  person            3  get reference to person textView      tvPerson    TextView  findViewById R id tvPerson           4  display name  amp  age on textView      tvPerson setText person toString

User · Answer

the most easiest solution i found is   to create a class with static data members with getters setters   set from one activity and get from another activity that object   activity A  mytestclass staticfunctionSet           etc      activity b  mytestclass obj  mytestclass staticfunctionGet

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We can send data one Activty1 to Activity2 with multiple ways like  1- Intent 2- bundle 3- create an object and send through intent                                                   1 - Using intent Pass the data through intent Intent intentActivity1   new Intent Activity1 this  Activity2 class   intentActivity1 putExtra  name    Android    startActivity intentActivity1   Get the data in Activity2 calss Intent intent   getIntent    if intent hasExtra  name          String userName   getIntent   getStringExtra  name                                                         2- Using Bundle Intent intentActivity1   new Intent Activity1 this  Activity2 class   Bundle bundle   new Bundle    bundle putExtra  name    Android    intentActivity1 putExtra bundle   startActivity bundle   Get the data in Activity2 calss Intent intent   getIntent    if intent hasExtra  name          String userName   getIntent   getStringExtra  name                                                         3-  Put your Object into Intent Intent intentActivity1   new Intent Activity1 this  Activity2 class               intentActivity1 putExtra  myobject   myObject               startActivity intentActivity1     Receive object in the Activity2 Class Intent intent   getIntent        Myobject obj     Myobject  intent getSerializableExtra  myobject

User · Answer

The simplest would be to just use the following where the item is a string   intent putextra  selected item  item    For receiving   String name   data getStringExtra  selected item

User · Answer

Another way to do this is to use the Application object  android app Application   You define this in you AndroidManifest xml file as    lt application     android name   MyApplication            You can then call this from any activity and save the object to the Application class   In the FirstActivity   MyObject myObject   new MyObject    MyApplication app    MyApplication  getApplication    app setMyObject myObject     In the SecondActivity  do    MyApplication app    MyApplication  getApplication    MyObject retrievedObject   app getMyObject myObject     This is handy if you have objects that have application level scope i e  they have to be used throughout the application  The Parcelable method is still better if you want explicit control over the object scope or if the scope is limited   This avoid the use of Intents altogether  though  I don t know if they suits you  Another way I used this is to have int identifiers of objects send through intents and retrieve objects that I have in Maps in the Application object

User · Answer

There are a couple of ways by which you can access variables or objects in other classes or Activity   A  Database   B  shared preferences   C  Object serialization   D  A class that can hold common data can be named Common Utilities it depends on you   E  Passing data through Intents and Parcelable Interface   It depends upon your project needs   A  Database  SQLite is an Open Source Database which is embedded into Android  SQLite supports standard relational database features like SQL syntax  transactions  and prepared statements    Tutorials -- http   www vogella com articles AndroidSQLite article html  B  Shared Preferences  Suppose you want to store username  So there will be now two things a Key Username  Value Value   How to store      Create an object of SharedPreferences   SharedPreferences sharedPref   PreferenceManager getDefaultSharedPreferences this      now get Editor  SharedPreferences Editor editor   sharedPref edit       put your value  editor putString  userName    stackoverlow        commits your edits  editor commit      Using putString   putBoolean   putInt   putFloat   putLong   you can save your desired dtatype   How to fetch  SharedPreferences sharedPref   PreferenceManager getDefaultSharedPreferences this   String userName   sharedPref getString  userName    Not Available      http   developer android com reference android content SharedPreferences html  C  Object Serialization  Object serialization is used if we want to save an object state to send it over the network or you can use it for your purpose also   Use java beans and store in it as one of his fields and use getters and setter for that  JavaBeans are Java classes that have properties  Think of properties as private instance variables  Since they re private  the only way they can be accessed from outside of their class is through methods in the class  The methods that change a property s value are called setter methods  and the methods that retrieve a property s value are called getter methods    public class VariableStorage implements Serializable         private String inString        public String getInString             return inString             public void setInString String inString            this inString   inString              Set the variable in your mail method by using  VariableStorage variableStorage   new VariableStorage    variableStorage setInString inString     Then use object Serialzation to serialize this object and in your other class deserialize this object   In serialization  an object can be represented as a sequence of bytes that includes the object s data as well as information about the object s type and the types of data stored in the object   After a serialized object has been written into a file  it can be read from the file and deserialized that is  the type information and bytes that represent the object and its data can be used to recreate the object in memory   If you want a tutorial for this to refer this link  http   javawithswaranga blogspot in 2011 08 serialization-in-java html  Get variable in other classes  D  CommonUtilities  You can make a class by your self which can contain common data which you frequently need in your project   Sample  public class CommonUtilities        public static String className    CommonUtilities        E  Passing Data through Intents  Please refer to this tutorial for this option of passing data   http   shri blog kraya co uk 2010 04 26 android-parcel-data-to-pass-between-activities-using-parcelable-classes

User · Answer

Short answer for fast need   1  Implement your Class to Serializable    If you have any inner Classes don t forget to implement them to Serializable too    public class SportsData implements  Serializable public class Sport implements  Serializable  List lt Sport gt  clickedObj    2  Put your object into Intent    Intent intent   new Intent SportsAct this  SportSubAct class               intent putExtra  sport   clickedObj               startActivity intent     3  And receive your object in the other Activity Class  Intent intent   getIntent        Sport cust    Sport  intent getSerializableExtra  sport

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Start another activity from this activity pass parameters via Bundle Object  Intent intent   new Intent getBaseContext    YourActivity class   intent putExtra  USER NAME    xyz gmail com    startActivity intent     Retrieve on another activity  YourActivity   String s   getIntent   getStringExtra  USER NAME      This is ok for simple kind data type  But if u want to pass complex data in between activity u need to serialize it first   Here we have Employee Model  class Employee      private String empId      private int age      print Double salary       getters        setters        You can use Gson lib provided by google to serialize the complex data  like this  String strEmp   new Gson   toJson emp   Intent intent   new Intent getBaseContext    YourActivity class   intent putExtra  EMP   strEmp   startActivity intent    Bundle bundle   getIntent   getExtras        String empStr   bundle getString  EMP                Gson gson   new Gson                Type type   new TypeToken lt Employee gt                    getType                Employee selectedEmp   gson fromJson empStr  type

User · Answer

you can use putExtra Serializable    and getSerializableExtra   methods to pass and retrieve objects of your class type  you will have to mark your class Serializable and make sure that all your member variables are serializable too

User · Answer

For situations where you know you will be passing data within an application  use  globals   like static Classes   Here is what Dianne Hackborn  hackbod - a Google Android Software Engineer  had to say on the matter      For situations where you know the activities are running in the same   process  you can just share data through globals   For example  you   could have a global HashMap lt String  WeakReference lt MyInterpreterState gt  gt    and when you make a new MyInterpreterState come up with a unique name   for it and put it in the hash map  to send that state to another   activity  simply put the unique name into the hash map and when the   second activity is started it can retrieve the MyInterpreterState from   the hash map with the name it receives

User · Answer

POJO class  Post   Note that it is implemented Serializable   package com example booklib   import java io Serializable  import java util ArrayList  import java util List   import android graphics Bitmap   public class Post implements Serializable      public String message      public String bitmap      List lt Comment gt  commentList   new ArrayList lt Comment gt         public String getMessage             return message            public void setMessage String message            this message   message            public String getBitmap             return bitmap            public void setBitmap String bitmap            this bitmap   bitmap            public List lt Comment gt  getCommentList             return commentList            public void setCommentList List lt Comment gt  commentList            this commentList   commentList             POJO class  Comment  Since being a member of Post class it is also needed to implement the Serializable       package com example booklib       import java io Serializable       public class Comment implements Serializable          public String message          public String fromName          public String getMessage                 return message                    public void setMessage String message                this message   message                    public String getFromName                 return fromName                    public void setFromName String fromName                this fromName   fromName                     Then in your activity class  you can do as following to pass the object to another activity   ListView listview    ListView  findViewById R id post list   listview setOnItemClickListener new OnItemClickListener             Override         public void onItemClick AdapterView lt   gt  parent  View view                  int position  long id                Post item    Post parent getItemAtPosition position               Intent intent   new Intent MainActivity this CommentsActivity class               intent putExtra  post  item               startActivity intent                        In your recipient class  CommentsActivity  you can get the data as the following    Post post   Post getIntent   getSerializableExtra  post

User · Answer

I use Gson with its so powerful and simple api to send objects between activities   Example     This is the object to be sent  can be any object public class AndroidPacket        public String CustomerName        constructor    public AndroidPacket String cName          CustomerName   cName                other fields               You can add those functions as LiveTemplate       public String toJson             Gson gson   new Gson            return gson toJson this              public static AndroidPacket fromJson String json            Gson gson   new Gson            return gson fromJson json  AndroidPacket class             2 functions you add them to the objects that you want to send  Usage  Send Object From A to B         Convert the object to string using Gson     AndroidPacket androidPacket   new AndroidPacket  Ahmad        String objAsJson   androidPacket toJson         Intent intent   new Intent A this  B class       intent putExtra  my obj   objAsJson       startActivity intent     Receive In B   Override protected void onCreate Bundle savedInstanceState                Bundle bundle   getIntent   getExtras        String objAsJson   bundle getString  my obj        AndroidPacket androidPacket   AndroidPacket fromJson objAsJson           Here you can use your Object     Log d  Gson   androidPacket CustomerName       I use it almost in every project i do and I have no performance issues

User · Answer

Intent i   new Intent    i putExtra  name of extra   myParcelableObject   startACtivity i

User · Answer

By far the easiest way IMHO to parcel objects   You just add an annotation tag above the object you wish to make parcelable   An example from the library is below https   github com johncarl81 parceler   Parcel public class Example       String name      int age       public Example      Required empty bean constructor          public Example int age  String name            this age   age          this name   name             public String getName     return name         public int getAge     return age

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In Koltin  Add kotlin extension in your build gradle   apply plugin   kotlin-android-extensions   android       androidExtensions           experimental   true          Then create your data class like this    Parcelize data class Sample val id  Int  val name  String    Parcelable   Pass Object with Intent   val sample   Sample 1  naveen    val intent   Intent context  YourActivity  class java      intent putExtra  id   sample      startActivity intent    Get object with intent  val sample   intent getParcelableExtra  id

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If you are not very particular about using the putExtra feature and just want to launch another activity with objects  you can check out the GNLauncher  https   github com noxiouswinter gnlib android wiki gnlauncher  library I wrote in an attempt to make this process more straight forward   GNLauncher makes sending objects data to an Activity from another Activity etc as easy as calling a function in the Activity with the required data as parameters  It introduces type safety and removes all the hassles of having to serialize  attaching to the intent using string keys and undoing the same at the other end

User · Answer

in your class model  Object  implement Serializable  for Example   public class MensajesProveedor implements Serializable        private int idProveedor        public MensajesProveedor                public int getIdProveedor             return idProveedor             public void setIdProveedor int idProveedor            this idProveedor   idProveedor              and your first Activity   MensajeProveedor mp   new MensajeProveedor    Intent i   new Intent getApplicationContext    NewActivity class                   i putExtra  mensajes  mp                   startActivity i     and your second Activity  NewActivity           MensajesProveedor  mensajes    MensajesProveedor getIntent   getExtras   getSerializable  mensajes      good luck

User · Answer

implement serializable in your class  public class Place implements Serializable          private int id          private String name           public void setId int id               this id   id                    public int getId                return id                    public String getName                return name                     public void setName String name               this name   name                Then you can pass this object in intent       Intent intent   new Intent this  SecondAct class        intent putExtra  PLACE   Place        startActivity intent     int the second activity you can get data like this       Place place   Place  getIntent   getSerializableExtra  PLACE      But when the data become large this method will be slow

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I know it s a little bit late  but if you want to do this for a few objects only why don t you just declare you objects as a public static objects in your destination activity    public static myObject   new myObject      and from your source activity just give it a value    destinationActivity myObject   this myObject    in your source activity you can use it like any global object  Fro a large number of object it may cause some memory issues but for a few number of objects i think this is the best way to do

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If you have a singleton class  fx Service  acting as gateway to your model layer anyway  it can be solved by having a variable in that class with getters and setters for it   In Activity 1   Intent intent   new Intent getApplicationContext    Activity2 class   service setSavedOrder order   startActivity intent     In Activity 2   private Service service  private Order order    Override protected void onCreate Bundle savedInstanceState        super onCreate savedInstanceState       setContentView R layout activity quality        service   Service getInstance        order   service getSavedOrder        service setSavedOrder null    If you don t want to save it for the entire session of the app      In Service   private static Service instance   private Service           Constructor content    public static Service getInstance         if instance    null                instance   new Service              return instance    private Order savedOrder   public Order getSavedOrder         return savedOrder     public void setSavedOrder Order order        this savedOrder   order      This solution does not require any serialization or other  packaging  of the object in question  But it will only be beneficial if you are using this kind of architecture anyway

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Using google s Gson library you can pass object to another activities Actually we will convert object in the form of json string and after passing to other activity we will again re-convert to object like this  Consider a bean class like this   public class Example       private int id      private String name       public Example int id  String name            this id   id          this name   name             public int getId             return id             public void setId int id            this id   id             public String getName             return name             public void setName String name            this name   name            We need to pass object of Example class  Example exampleObject new Example 1  hello    String jsonString   new Gson   toJson exampleObject   Intent nextIntent new Intent this NextActivity class   nextIntent putExtra  example  jsonString    startActivity nextIntent     For reading we need to do the reverse operation in NextActivity   Example defObject new Example -1 null         default value to return when example is not available     String defValue  new Gson   toJson defObject       String jsonString getIntent   getExtras   getString  example  defValue         passed example object     Example exampleObject new Gson   fromJson jsonString Example  class     Add this dependancy in gradle  compile  com google code gson gson 2 6 2

User · Answer

if your object class implements Serializable  you don t need to do anything else  you can pass a serializable object   that s what i use

User · Answer

You can use android BUNDLE to do this   Create a Bundle from your class like   public Bundle toBundle         Bundle b   new Bundle        b putString  SomeKey    SomeValue         return b      Then pass this bundle with INTENT  Now you can recreate your class object by passing bundle like  public CustomClass Context  context  Bundle b        context    context      classMember   b getString  SomeKey        Declare this in your Custom class and use

User · Answer

I know this is late but it is very simple All you have do is let your class implement Serializable like  public class MyClass implements Serializable       then you can pass to an intent like  Intent intent        MyClass obje new MyClass    intent putExtra  someStringHere  obje     To get it you simpley call   MyClass objec  MyClass intent getExtra  theString

[android] How to send an object from one Android Activity to another using Intents?

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