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POHow to pass data both ways between different android applications?
 

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  1. POHow to pass data both ways between different android applications?
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    <p>What's the easiest way to <strong>pass string variables from one application to another and also return values back</strong>? I have access to the source code of both apps, but it has to be two different applications.</p> <p>I tried with startActivityForResult, but this only seems to work between activies of the same application. When calling an activity from a different package, startActivityForResult returns immediately with RESULT_CANCELED. There seems to be the possibility to solve this with a Service, but isn't that a bit oversized for just some string vars?</p> <p>Is there an easy and clean way to do this?</p> <p>Here the code i tried to use for startActivityForResult:</p> <pre><code>//App A: Intent intent = new Intent(); intent.setAction("com.example.testapp.MESSAGE"); Bundle b = new Bundle(); b.putString("loginToken", "263bhqw3jhf6as4yf8j0agtz8h2hj2z9j3hg3g3ggh34uzh2h2ui78h3i9wdnj89x"); intent.putExtra("MyData", b); startActivityForResult(intent, TEST_REQUEST); @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { Log.d("pairing", "onActivityResult called"); // Check which request we're responding to if (requestCode == TEST_REQUEST) { // Make sure the request was successful Log.d("pairing", "got result, resultCode: " + resultCode); if (resultCode == RESULT_OK) { // The Intent's data Uri identifies which contact was selected. if (data.hasExtra("returnMessage")) { Toast.makeText(this, data.getExtras().getString("returnMessage"), Toast.LENGTH_LONG).show(); } } } } // App B: Intent result = new Intent(); Bundle b = new Bundle(); b.putString("returnValue", "this is the returned value"); result.putExtra("MyData", b); setResult(Activity.RESULT_OK, result); Log.d("pairing", "RESULT_OK set"); finish(); //App B Manifest &lt;activity android:name="com.example.testapp" android:launchMode="singleTop" android:screenOrientation="portrait" android:windowSoftInputMode="adjustPan" &gt; &lt;intent-filter&gt; &lt;action android:name="com.example.testapp.MESSAGE" /&gt; &lt;category android:name="android.intent.category.DEFAULT" /&gt; &lt;data android:mimeType="text/plain" /&gt; &lt;/intent-filter&gt;&lt;/activity&gt; </code></pre> <p>Anybody seeing the mistake? App B always returns immediately with RESULT_CANCELED</p> <p>EDIT: Right now I'm getting a <em>android.content.activitynotfoundexception no activity found to handle intent { act=com.example.testapp.MESSAGE (has extras) }</em> error. What am I doing wrong?</p>
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    1. COcan you post the code of the two activities?
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      1. USAriel Magbanua
    2. COstartActivityForResult should work... Problem seems to be within your code
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      1. USSelvin
    3. COIt seems for me this is not possible with startActivityForResult(). It works between Activities of the same app, even with different packages, but not with two different Applications. See [link](http://stackoverflow.com/questions/11919259/how-to-get-startactivityforresult-on-external-activity-to-work)
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