How to transmit the value of Intent on two pages in Android

In Android, Intent has two types of values on two pages. One is to transfer values between two activities, and the other is to transfer data between a common page and an Activity.

1. Intent transfers values between two activities

First define two activities FirstActivity and SecondActivity

Code in the onCreate () method of FirstActivity

Intent intent = new Intent ();

String str = "data to be passed ";

Intent. putExtra ("str", str );

Intent. setClass (FirstActivity. this, SecondActivity. class );
StartActivity (intent );

 

On the SecondActivity page

Intent intent = getIntent ();

Intent. getStringExtra ("str ");

 

 

2. Intent transmits data between a common page and an Activity

The two pages are MainActivity and Intention. java.

Code in the onCreate () method of MainActivity

Intent intent = new Intent ();

String str = "data to be passed ";

Intent. putExtra ("str", str );

Intent. setClass (context, SecondActivity. class );
Context. startActivity (intent );

 

The code in Intention. java is

Intent intent = getIntent ();

Intent. getStringExtra ("str ");