Android get previous activity

I have 2 activities: Activity1 and Activity2. In each of this activities there is a button that leads me to a third activity (MainActivity). In MainActivity I want to know from which activity page was called.

Solution 1:

You can use the putExtra attribute of the Intent to pass the name of the Activity.

Calling Activity,

Intent intent = new Intent(this, Next.class);
intent.putExtra("activity","first");
startActivity(intent);

Next Activity,

Intent intent = getIntent();
String activity = intent.getStringExtra("activity");

Now in the string activity you will get the name from which Activity it has came.

Solution 2:

You can use:

public ComponentName getCallingActivity()

to know which Activity called your current Activity.

Solution 3:

Use putExtra() to identify the previous activity.

Intent i = new Intent(Activity1.this, MainActivity.class).putExtra("from", "activity1");
startActivity(i);

To check the activity in Main Activity,

if(getIntent().getStringExtra("from").equals("activity1")){
//From Activity 1
}else {
// Activity 2
}