Android : Calling the other package activity from the current package Activity

Hi All,

After a long time one more android blog, or you can say a new problem which I encounter. In general cases we call activity using intent within the same package. but what if we want to call some other package activity. So here is the solution. Here I will be using the name convention as Calling Activity as First Activity and Called Activity as Final Activity.

Method 1 : Using setClass() method in Intent class.

It is the same thing which you do in normal scenario but with a little tweak in it. In FirstActivity where ever you want to call other activity from other package, put following code

Intent i = new Intent();
i.setClassName("com.android.finalactivity", "com.android.finalactivity.FinalActivity");
startActivity(i);

/* Here com.android.finalactivity is the package name and com.android.finalactivity.FinalActivity is full class name. */

Now go to the AndroidManifest.xml of the FirstActivity and Add following line

activity android:name=”com.samsung.finalactivity.FinalActivity” in application tag.

It will work fine.

Method 2. Using action name

For this first go to your Final Activity and Modify the Manifest file like this :

Instead of the action android :name =”android.intent.action.MAIN” Use

action android:name=”finalApplication.intent.LAUNCH”

Now go to your FirstActivity.java and write

Intent i = new Intent("finalApplication.intent.LAUNCH");
startActivity(i);

Here no need to change AndroidManifest file for FirstApplication.

Hope it helps.