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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Hi Xinxin,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Can you please send me the APK file?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Best regards,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'> Steven<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> soot-list-bounces@CS.McGill.CA [mailto:soot-list-bounces@CS.McGill.CA] <b>Im Auftrag von </b>Xinxin Jin<br><b>Gesendet:</b> Freitag, 13. Februar 2015 00:13<br><b>An:</b> Wei Yang; Dacong Yan<br><b>Cc:</b> Soot list<br><b>Betreff:</b> Re: [Soot-list] Why FlowDroid invokes one activity multiple times in dummyMainMethod()<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><div><div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>In addition, I also observed other entry point methods are invoked multiple times. For example, "BaseActivity: onStart()" is invoked in multiple statements of dummyMain: <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>virtualinvoke $r4.<BaseActivity: void onStart()>();<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>virtualinvoke $r14.<BaseActivity: void onStart()>();<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>virtualinvoke $r17.<BaseActivity: void onStart()>();<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>...<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>...<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Thanks.<o:p></o:p></span></p></div></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Thu, Feb 12, 2015 at 2:59 PM, Xinxin Jin <<a href="mailto:xinxinjin89@gmail.com" target="_blank">xinxinjin89@gmail.com</a>> wrote:<o:p></o:p></p><div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Hi Wei,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Sorry for the confusion. What I mean is the init method "</span><span style='font-family:"Courier New"'>SessionLivestreamActivity: void <clinit>()></span><span style='font-family:"Arial","sans-serif"'>" is invoked multiple times. In the generated dummyMain, I can see a lot of statements like: </span><o:p></o:p></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>$r63 = new com.google.samples.apps.iosched.ui.SessionLivestreamActivity<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>$r115 = new com.google.samples.apps.iosched.ui.SessionLivestreamActivity<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>$r121 = new com.google.samples.apps.iosched.ui.SessionLivestreamActivity<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>$r205 = new com.google.samples.apps.iosched.ui.SessionLivestreamActivity<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>...<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>...<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Is it normal ?<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Thanks very much.<o:p></o:p></span></p></div></div></div><div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>On Thu, Feb 12, 2015 at 2:51 PM, Wei Yang <<a href="mailto:davidyoung8906@gmail.com" target="_blank">davidyoung8906@gmail.com</a>> wrote:<o:p></o:p></p><div><div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=MsoNormal>Hi! Xinxin,<o:p></o:p></p></div><p class=MsoNormal> Your question is not very clear. Are you referring to call graph when you say "<span style='font-size:10.5pt;font-family:"Arial","sans-serif"'> dummyMainMethod() invokes an Activity called SessionLivestreamActivity </span>"? Activity normally has multiple entry point methods (e.g. onCreate(), onStop() ), so it is likely that in an call graph, the same activity could appear on several CG nodes.<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>Thanks!<o:p></o:p></p></div></div><div><p class=MsoNormal><br clear=all><o:p></o:p></p><div><div><p class=MsoNormal>Best wishes,<o:p></o:p></p><div><p class=MsoNormal>David <o:p></o:p></p></div></div></div><p class=MsoNormal><o:p> </o:p></p><div><p class=MsoNormal>2015-02-12 14:35 GMT-06:00 Xinxin Jin <<a href="mailto:xinxinjin89@gmail.com" target="_blank">xinxinjin89@gmail.com</a>>:<o:p></o:p></p><div><div><div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Hello,<o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'><o:p> </o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>I am running FlowDroid on one Android app, and found dummyMainMethod() invokes an Activity called SessionLivestreamActivity <b>14</b> times. <o:p></o:p></span></p></div><div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>In my mind, each activity is an entry point of an app. So should not dummyMainMethod() only invokes each entry point once ? <o:p></o:p></span></p></div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>From my experiments, most of the time the activity class is indeed invoked just once. So I am confused in which particular situation the activity class will be invoked multiple times ?<o:p></o:p></span></p></div><p class=MsoNormal><o:p> </o:p></p></div><div><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Thank you very much !<o:p></o:p></span></p></div></div><p class=MsoNormal><span style='color:#888888'><br clear=all><o:p></o:p></span></p><div><p class=MsoNormal><span style='color:#888888'><o:p> </o:p></span></p></div><p class=MsoNormal><span style='color:#888888'>-- <o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#888888'>Xinxin</span><span style='color:#888888'><o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p></div></div><p class=MsoNormal style='margin-bottom:12.0pt'>_______________________________________________<br>Soot-list mailing list<br><a href="mailto:Soot-list@CS.McGill.CA" target="_blank">Soot-list@CS.McGill.CA</a><br><a href="https://mailman.CS.McGill.CA/mailman/listinfo/soot-list" target="_blank">https://mailman.CS.McGill.CA/mailman/listinfo/soot-list</a><o:p></o:p></p></div><p class=MsoNormal><o:p> </o:p></p></div></blockquote></div></div></div><p class=MsoNormal><span style='color:#888888'><br><br clear=all><span class=hoenzb><o:p></o:p></span></span></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal><span class=hoenzb><span style='color:#888888'>-- </span><o:p></o:p></span></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif";color:#888888'>Xinxin</span><o:p></o:p></p></div></div></div><p class=MsoNormal><br><br clear=all><o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><p class=MsoNormal>-- <o:p></o:p></p><div><p class=MsoNormal><span style='font-family:"Arial","sans-serif"'>Xinxin</span><o:p></o:p></p></div></div></div></body></html>