This means you can choose between writing code like the example above or chaining calls, like this: You can do the same with other primitive types, Strings, or arrays of primitives or Strings.Īt this point, you can signal that we intend to start a new Activity that will receive the Intent we just made, as you normally would with:Ī quick digression: In case you didn’t realize this, putExtra returns the calling object. Intent intent = new Intent(this, NextActivity.class)

For example, the following code will store an int variable called intToSend in an Intent, giving the int the key “my-int.” Primitives and Strings can easily be put into Intents.

The bundle is one of the mechanisms through which Intents transfer data to other activities, and it is my main focus in this post. It’s the same structure you see every time you override an Activity’s onCreate method. This is a Bundle, storing key value pairs in which keys are Strings. Intent objects all have an extras property. In this post, I’ll discuss a few ways to pass data between Activities using Intents, including passing primitives, Strings, and object types.

Often, you will want to pass information to the new Activity. One of the most common uses of Intents is to open a new Activity in your app. Import 7.app.Android Intents are objects used to trigger actions from other Android Activities. This file can include each of the fundamental lifecycle methods. Step 2 − Following is the content of the modified main activity file MainActivity.java. Step 2 − Add the following code to res/layout/activity_main.xml. Step 1 − Create a new project in Android Studio, Go to File ⇒ New Project and fill all required details to create a new project. Here is the example to send an object between two activities. The byte stream is a platform independent, so it's going to work on the JVM and other platforms. Using serialization, we can convert state of an object into a byte stream. Before getting into the code, we should know about serialization and how does it work with intent in android. Using serialization, we can pass object's state or array between two activities.

Pass data using intent android studio