How to launch an Activity from another Application in Android

java android android-intent
Bastian picture Bastian · Oct 6, 2010 · Viewed 427.6k times · Source

I want to launch an installed package from my Android application. I assume that it is possible using intents, but I didn't find a way of doing it. Is there a link, where to find the information?

Answer

andep picture andep · Sep 27, 2011

If you don't know the main activity, then the package name can be used to launch the application.

Intent launchIntent = getPackageManager().getLaunchIntentForPackage("com.package.address");
if (launchIntent != null) { 
    startActivity(launchIntent);//null pointer check in case package name was not found
}

Related questions

How to pass an object from one activity to another on Android

I am trying to work on sending an object of my customer class from one Activity and display it in another Activity. The code for the customer class: public class Customer { private String firstName, lastName, Address; int Age; public Customer(…

Read More
Sending Email in Android using JavaMail API without using the default/built-in app

I am trying to create a mail sending application in Android. If I use: Intent emailIntent = new Intent(android.content.Intent.ACTION_SEND); This will launch the built-in Android application; I'm trying to send the mail on button click directly …

Read More
Launching Google Maps Directions via an intent on Android

My app needs to show Google Maps directions from A to B, but I don't want to put the Google Maps into my application - instead, I want to launch it using an Intent. Is this possible? If yes, how?

Read More