Launch Activity from another Application Android [duplicate]

Question

Possible Duplicate:
Android Launch an application from another application

I am having a problem and it is the following one:

I have two applications, and I want to launch one of the activities from one app by the other one......I am gonna give an example:

first app package:

"es.wul4.android.app1"

second app package:

"es.wul4.android.app2"

What I want is to launch the activity whose class is called "Identificar" from the app1

This activity is NOT the main one. I tried by doind that:

Intent intent = getPackageManager().getLaunchIntentForPackage("es.wul4.app2.Identificar");
startActivity(intent);

But what i get doing that is nothing, it tells me that the app doesn´t exists.

If i try doing that:

getPackageManager().getLaunchIntentForPackage("es.wul4.app2");
startActivity(intent);

And it launch one activity, but the main one........

How can I launch this particular Activity inside the package "es.wul4.app2.Identificar"??

Thank u very much.

You want to start particular activity?

Praveenkumar
– Praveenkumar

2012-03-23 12:31:42 +00:00
Commented Mar 23, 2012 at 12:31 — Praveenkumar
– Praveenkumar, Commented Mar 23, 2012 at 12:31

Urban · Accepted Answer · 2012-03-23 12:53:00Z

18

What you need to use are intent-filters. Assume the activity to be launched is in the package launch.me. Inside this applications manifest all the activities (main or otherwise) will be decalred by the <activity> tag.
Assuming the activity you want to launch is inside the class file Launchme. Then a portion of your manifest will be something like:

<activity android:name="launch.me.Launchme"
              android:label="@string/app_name">
<intent-filter>
            <action android:name="launch.me.action.LAUNCH_IT"/>
            <category android:name="android.intent.category.DEFAULT"/>
</intent-filter>
</activity>

Now in the activity from where you want to launch the above activity use:(Note: This activity can be in any package anywhere. You have to make sure that both, the calling and the called packages are available on the device)

Intent i=new Intent();
i.setAction("launch.me.action.LAUNCH_IT");
startActivityForResult(i,0);

You can use other methods for starting the intent other than startActivityForResult, thats upto you.

answered Mar 23, 2012 at 12:53

Urban

2,19924 silver badges52 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

zapotec Over a year ago

Thank you! I didn´t know it was neccesary to use the <intent-filter> to launch the activity, now I can launch the activity without any problems and I even can send determinated data

Urban Over a year ago

yes, you can easily pass values in between them by using putExtra with the intents :)

Caner · Accepted Answer · 2012-03-23 12:33:26Z

1

Did you add activity inside app1s manifest?:

    <activity
        android:label="@string/app_name"
        android:name=".Identificar" >
    </activity>

answered Mar 23, 2012 at 12:33

Caner

59.7k37 gold badges184 silver badges185 bronze badges

2 Comments

Praveenkumar Over a year ago

+1 for important thing is mentioned

zapotec Over a year ago

.......I think you didn´t understand very well....app1 doesn´t contain Activity Identificar. The Activity Identificar is inside app2. What I want is to launch this activity from the app1. Thanks anyway.

Marcos · Accepted Answer · 2012-03-23 12:34:54Z

-4

I think, since both activities are in the same package that you only have to do:

startActivity(new Intent(getApplicationContext(), Identificar.class));

answered Mar 23, 2012 at 12:34

Marcos

4,6637 gold badges35 silver badges62 bronze badges

1 Comment

Selvin Over a year ago

read question again ... "first app package: es.wul4.android.app1, second app package: es.wul4.android.app2"

Collectives™ on Stack Overflow

Launch Activity from another Application Android [duplicate]

3 Answers 3

2 Comments

2 Comments

1 Comment

Linked

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

2 Comments

2 Comments

1 Comment

Linked

Related