<activity 
        android:name="org.qpython.qpylib.MPyApi"
        android:label="@string/qpy_run_with_share"
        android:screenOrientation="user"
        android:configChanges="orientation|keyboardHidden"
        android:exported="true">
        <intent-filter>
            <action android:name="org.qpython.qpylib.action.MPyApi" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.VIEW" />
            <category android:name="android.intent.category.DEFAULT" />
            <category android:name="android.intent.category.BROWSABLE" />
            <data android:scheme="http" />
            <data android:scheme="https" />
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.SEND"/>
            <category android:name="android.intent.category.DEFAULT"/>
            <data android:mimeType="text/plain"/>
        </intent-filter>
        <intent-filter>
            <action android:name="android.intent.action.SEND"/>
            <category android:name="android.intent.category.DEFAULT"/>
            <data android:mimeType="image/*"/>
        </intent-filter>
    </activity>

// code sample shows how to call qpython API
String extPlgPlusName = "org.qpython.qpy";          // QPython package name
Intent intent = new Intent();
intent.setClassName(extPlgPlusName, "org.qpython.qpylib.MPyApi");
intent.setAction(extPlgPlusName + ".action.MPyApi");

Bundle mBundle = new Bundle();
mBundle.putString("app", "myappid");
mBundle.putString("act", "onPyApi");
mBundle.putString("flag", "onQPyExec"); // any String flag you may use in your context
mBundle.putString("param", "");         // param String param you may use in your context

/*
* The Python code we will run
*/
String code = "import androidhelper\n" +
            "droid = androidhelper.Android()\n" +
            "line = droid.dialogGetInput()\n" +
            "s = 'Hello %s' % line.result\n" +
            "droid.makeToast(s)\n"

mBundle.putString("pycode", code);
intent.putExtras(mBundle);
startActivityForResult(intent, SCRIPT_EXEC_PY);
...

// And you can handle the qpython callabck result in onActivityResult
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == SCRIPT_EXEC_PY) {
        if (data!=null) {
            Bundle bundle = data.getExtras();
            String flag = bundle.getString("flag");
            String param = bundle.getString("param");
            String result = bundle.getString("result"); // Result your Pycode generate
            Toast.makeText(this, "onQPyExec: return ("+result+")", Toast.LENGTH_SHORT).show();
        } else {
            Toast.makeText(this, "onQPyExec: data is null", Toast.LENGTH_SHORT).show();

        }
    }
}