How to Pass Data Between Activities in Android Application

How do I pass data between Activities in Android application?

The easiest way to do this would be to pass the session id to the signout activity in the Intent you're using to start the activity:

Intent intent = new Intent(getBaseContext(), SignoutActivity.class);
intent.putExtra("EXTRA_SESSION_ID", sessionId);
startActivity(intent);

Access that intent on next activity:

String sessionId = getIntent().getStringExtra("EXTRA_SESSION_ID");

The docs for Intents has more information (look at the section titled "Extras").

Using intents to pass data between activities

Pass the data from Activity-1 to AndroidTabRes.. as below:

At sending activity...

Intent intent = new Intent(current.this, AndroidTabRestaurantDescSearchListView.class);
intent.putExtra("keyName","value");
startActivity(intent);

At AndroidTabRes.. activity...

  String data = getIntent().getExtras().getString("keyName");

Thus you can have data at receiving activity from sending activity...

And in your AndroidTabRestaurantDescSearchListView class, do this:

String value= getIntent().getStringExtra("keyName");

Intent intent = new Intent(this, RatingDescriptionSearchActivity.class);
intent.putExtra("keyName", value);
startActivity(intent);

Then in your RatingDescriptionSearchActivity class, do this:

 String data= getIntent().getStringExtra("keyName");

How to passing data between 3 activities (Android Studio)

In Activity 1:on click listener of insert button put this:

   Intent  i = new Intent(Activity1.this, Activity2.class);
   String name = input.gettext();
   i.putExtra("name",name);
   StartActivity(i);

above code will pass value from activity 1 to activity 2,i assume you are quite new to android development go through this link carefully to understand Intents and starting activity

Now in Activity2 get the values from intent

  String name=getIntent().getStringExtra("name");

name will have value passed from activity 1;

Now following same pattern you can pass value from activity 2 to activity 3

How to pass data between 3 or more activities in Android Studio?

i believe you are trying to create new intent and start it outside of oncreate methond, but you are declaring the variable phonenumber inside of it, so it cant be reached outside of its scope, try declaring it as a private field of a activity class and initialize it in onCreate() method, then you will be able to use it.

How do I transfer data from one activity to another in Android Studio?

Inside Activity2

You can place data inside the Intent directly or you can put them in a Bundle and then put the inside the Intent. Avoid using both for consistency.

  Intent activity3Intent = new Intent(getApplicationContext(), Activity3.class);
  //Direct Intent approach
  activity3Intent.putExtras("YOUR_STRING_KEY","YOUR_DATA");
  //OR Bundle approach
  Bundle bundle = new Bundle();
  bundle.putString("YOUR_STRING_KEY","YOUR_DATA");
  activity3Intent.putExtras(bundle);
  startActivity(activity3Intent);

Inside the Activity3 class.

//if direct intent approach
String value = getIntent.getStringExtra("YOUR_STRING_KEY") 
//If bundle approach was used.
String value = getIntent().getExtras().getString("YOUR_STRING_KEY");

How do I pass data between Activities in Android application?

The easiest way to do this would be to pass the session id to the signout activity in the Intent you're using to start the activity:

Intent intent = new Intent(getBaseContext(), SignoutActivity.class);
intent.putExtra("EXTRA_SESSION_ID", sessionId);
startActivity(intent);

Access that intent on next activity:

String sessionId = getIntent().getStringExtra("EXTRA_SESSION_ID");

The docs for Intents has more information (look at the section titled "Extras").

What are ways to transfer data between activities

Using Intent, you can share data between two activities.
In your case, you have to make user object parcelable.

1. Implement Parcelable interface in your user class.

2. Send the user object in intent like
   intent.putExtra("user", userObject)

3. In your second activity get user object from intent :

User user = (User) getIntent().getExtras().getParcelable("user")

How to pass data between activities that don't follow one another

Its very simple you can add Shared Preferences in your login activity add the following code

First, make a constant

public static final String USERNAME = "0";//Write this at the start

//Then add this inside a function 
SharedPreferences sharedPreferences = getSharedPreferences("username", 0);
Editor editor = sharedPreferences.edit();
editor.putString(USERNAME, username);//username is your username.
editor.apply();

Then maybe in your third/fourth activity add this in function onCreate()

SharedPreferences sharedPreferences = getSharedPreferences("username", 0);
String Username = sharedPreferences.getString(USERNAME, "");
//Now you can use the String Username wherever you want

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