CODEWITHSUNDEEP
androidapiandroid-activity
mtmurdock
mtmurdock

Reputation: 13062

android: how do i open another app from my app?

I understand how to use intents and startActivity() when opening another activity within my own app, but how do you start a different app? specifically:

Upvotes: 22

Views: 32842

Answers (3)

Mauricio Peñaranda
Mauricio Peñaranda

Reputation: 1

This works for me:

Intent launchIntent = getPackageManager().getLaunchIntentForPackage("com.example.testing_app");
if (launchIntent != null) {
    startActivity(launchIntent);
} else {
    Toast.makeText(MainActivity.this, "testing_app is not installed", Toast.LENGTH_LONG).show();
}

Upvotes: 0

Tim Kryger
Tim Kryger

Reputation: 11246

How to see if Intent is available:

  1. Try calling Intent and deal with ActivityNotFoundException if it isn't available

    Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setDataAndType(path, "application/pdf");
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

try {
    startActivity(intent);
} 
catch (ActivityNotFoundException e) {
    Toast.makeText(OpenPdf.this, 
        "No Application Available to View PDF", 
        Toast.LENGTH_SHORT).show();
}

    or

  2. Query the Package Manager to see if it is ahead of time:

    PackageManager packageManager = getPackageManager();
Intent intent = new Intent(Intent.ACTION_VIEW);
intent.setType("application/pdf");

List list = packageManager.queryIntentActivities(intent,
    PackageManager.MATCH_DEFAULT_ONLY);

if (list.size() > 0) {
    intent.setDataAndType(path, "application/pdf");
    startActivity(intent);
}

How to pass parameters to an application or know its capabilities:

  1. List of Available Intents for Google Applications
  2. List of Intents by 3rd parties @ OpenIntents

Upvotes: 33

HXCaine
HXCaine

Reputation: 4258

What you are looking for are intents and intent filters.

Everything you want to know is detailed on the Android developer guide.

http://developer.android.com/guide/topics/intents/intents-filters.html

Upvotes: 1

Related Questions