How launchmode parameter in activity behaves

<activity android:name=.FirstActivity
 android:launchMode=singleTop></activity>

Let us assume different activity as A ,B ,C ,D ,E

1   android:launchMode=”singleTop”

    Let us assume the state of activity in a stack.

 D - D is on top of Activity Stack

 C

 B

 A

Starting D from another part of  application (like in service)

Final Activity Stack state

D - old instance of d activity gets extras data through onNewIntent(Intent newintent);

C

B

A

Eg Two:

Assuming activity in stack as follows

C

B

A

Starting  D from other part of  application (like in service)

Final Activity Stack state

D -starts as usual.

C

B

A

Eg 3

Assuming activity in stack

C

D

B

A

Start D from C

Final Activity Stack state

D -old  object of D gets extras data through onNewIntent(Intent newIntent);

C

B

A