Does anyone have an idea what I can do to improve the stability of this 3d app, which has 2 activities? I want to avoid the crashes.
On Sep 22, 1:14 pm, MobileVisuals <[email protected]> wrote: > I thought that it worked like it should,but I noticed that this is not > the case. This version crashes sometimes, often when onResume() is > called on any of the activities. It crashes on my Samsung Galaxy > device. I have tried to reproduce this on the emulator, but it doesn't > crashes there. The previous version based on ViewFlipper never > crashed, even on the Samsung device. > > Maybe the crashes are caused by the threads? I have set the priorities > to MIN_PRIORITY. I call on yield() on the 2d thread for every > onResume() and onPause() call to the 2d activity. I call on yield() > on the 3d thread for every onResume() and onPause() call to the 3d > activity. Should I implement another approach for the threading? Or do > think that something else causes the crashes? > > On Sep 21, 8:10 pm, MobileVisuals <[email protected]> wrote: > > > Thanks for the info. I have redesigned the app now and it worked. > > > On Sep 20, 6:37 pm, Mark Murphy <[email protected]> wrote: > > > > Use startActivity(), with FLAG_ACTIVITY_REORDER_TO_FRONT, to bring an > > > existing activity back into the foreground (or create it if it does > > > not exist). > > > > On Tue, Sep 20, 2011 at 12:32 PM, MobileVisuals > > > > <[email protected]> wrote: > > > > I see, then I would have to use one SurfaceView for the first activity > > > > and a GLSurfaceView for the other activity. I searched for information > > > > about how to switch between 2 activities on the forum and found one of > > > > your threads: > > > > >http://groups.google.com/group/android-developers/browse_thread/threa... > > > > > You recommend using a viewflipper here, so I can not use that > > > > approach. I found another thread > > > > >http://groups.google.com/group/android-developers/browse_thread/threa... > > > > > where they used the StartActivityForResult method. How would you > > > > recommend that I should swith between the activites without using a > > > > ViewFlipper? > > > > > On Sep 20, 4:43 pm, Mark Murphy <[email protected]> wrote: > > > >> Use two activities. > > > > >> On Tue, Sep 20, 2011 at 9:54 AM, MobileVisuals > > > >> <[email protected]> wrote: > > > >> > I got the viewflipper to work, but I found that it is not possible to > > > >> > use a GLSurfaceView in a viewflipper, like this thread describes: > > > > >> >http://groups.google.com/group/android-developers/browse_thread/threa... > > > > >> > How can I then switch between 2d and 3d rendering? > > > > >> > On Jul 27, 2:53 pm, Mark Murphy <[email protected]> wrote: > > > >> >> On Wed, Jul 27, 2011 at 8:49 AM, MobileVisuals > > > >> >> <[email protected]> wrote: > > > >> >> > I try to add 2 views to a Viewflipper, but I get > > > > >> >> > "java.lang.IllegalStateException: The specified child already has > > > >> >> > a > > > >> >> > parent. > > > >> >> > You must call removeView() on the child's parent first." > > > > >> >> > when I try to add the view. I don't know why this happens. I try > > > >> >> > to > > > >> >> > remove the view from the ViewFlipper, but I still get the same > > > >> >> > message. How can I add a ViewFlipper to the layout? You can view > > > >> >> > my > > > >> >> > code and XML layout below: > > > >> >> > --------------------------------------------------- > > > >> >> > setContentView(R.layout.lunar_layout); > > > >> >> > mLunarView = (LunarView) findViewById(R.id.lunar); > > > >> >> > ViewFlipper vf=(ViewFlipper) findViewById(R.id.flip); > > > >> >> > vf.addView(mLunarView, 0); > > > > >> >> The error should be self-explanatory. You already have R.id.lunar > > > >> >> as a > > > >> >> child of the LinearLayout. > > > > >> >> > layout: > > > >> >> > ------------------------------------------------------------------ > > > >> >> > <?xml version="1.0" encoding="utf-8"?> > > > > >> >> > <LinearLayout xmlns:android="http://schemas.android.com/apk/res/ > > > >> >> > android" > > > >> >> > android:layout_width="wrap_content" > > > >> >> > android:layout_height="wrap_content"> > > > > >> >> > <ViewFlipper > > > >> >> > android:id="@+id/flip" > > > >> >> > android:layout_width="fill_parent" > > > >> >> > android:layout_height="fill_parent"/> > > > > >> >> > <astral.effectsf.LunarView > > > >> >> > android:id="@+id/lunar" > > > >> >> > android:layout_width="fill_parent" > > > >> >> > android:layout_height="fill_parent"/> > > > > >> >> > </LinearLayout> > > > > >> >> Make the LunarView be a child element of your ViewFlipper, and get > > > >> >> rid > > > >> >> of the Java code to try adding it to the ViewFlipper, and you will > > > >> >> be > > > >> >> set. > > > > >> >> Here are some projects demonstrating the use of a ViewFlipper: > > > > >> >>https://github.com/commonsguy/cw-android/tree/master/Fancy/Flipper1ht... > > > > >> >> -- > > > >> >> Mark Murphy (a Commons > > > >> >> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy > > > > >> >> Android Training in NYC:http://marakana.com/training/android/ > > > > >> > -- > > > >> > You received this message because you are subscribed to the Google > > > >> > Groups "Android Developers" group. > > > >> > To post to this group, send email to > > > >> > [email protected] > > > >> > To unsubscribe from this group, send email to > > > >> > [email protected] > > > >> > For more options, visit this group at > > > >> >http://groups.google.com/group/android-developers?hl=en > > > > >> -- > > > >> Mark Murphy (a Commons > > > >> Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy > > > > >> Android Training...At Your Office:http://commonsware.com/training > > > > > -- > > > > You received this message because you are subscribed to the Google > > > > Groups "Android Developers" group. > > > > To post to this group, send email to [email protected] > > > > To unsubscribe from this group, send email to > > > > [email protected] > > > > For more options, visit this group at > > > >http://groups.google.com/group/android-developers?hl=en > > > > -- > > > Mark Murphy (a Commons > > > Guy)http://commonsware.com|http://github.com/commonsguyhttp://commonsware.com/blog|http://twitter.com/commonsguy > > > > Android Training...At Your Office:http://commonsware.com/training -- You received this message because you are subscribed to the Google Groups "Android Developers" group. 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