[android-developers] Re: Android application StartUp Internals
Thanks Nadeem I Understood. When i checked setContentView() API i found that a new instance of Window is getting created so if there is already a default window then why new instance of window getting created on call this method? Regards Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Android application StartUp Internals
Hi all, I am very much interested to know how an android application starts.After much googling I understood something but not fully. Below some of my observations: 1.When i click an application icon from launcher ,System look for activity with intent action main and category Launcher and starts that activity. *I need some more clarity regarding who launch main activity or who filtering main activity from others(I think package manager does). 2.Once Activity is launched there will be no windows associated with that application until i call setContentView(layout id). 3.When i call setContentView(layout id),Activity creates a new Window inance and this window has some default root layout to which we set our layout . *I think this window have a Surface instance and is associated with native Bitmap ?Did this surface have a Canvas wrapper over native bitmap ? 4.Once Layout is attached to Window ,This window is added to Window manager. 5.Window manager gives gives all window(having Surface) on screen to Surface Flinger. 6.SurfaceFlinger based on visibility of window set pixels in FrameBuffer and displays to screen. I am not sure whether what i said above is right or wrong.Please correct me if my understanding is wrong. Also add extra processes happening whilhe application start up. Thanks and have a Nice day :) -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Android application StartUp Internals
Hi Mark Thanks for your reply :) I have some doubts regarding the reply to point 2. When i call setContentView(layoud id) only new window instance get created before that there is no UI so no need of window right? I am only a android application developer but i wish to know what really happening behind the scene :) Where can i find exact information regarding this ? Regards Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Android application StartUp Internals
Thanks a lot Mark -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Android application StartUp Initialization
Hi all, I am very much interested to know how an android application starts.After much googling I understood something but not fully. Below some of my observations: 1.When i click an application icon from launcher ,System look for activity with intent action main and category Launcher and starts that activity. *I need some more clarity regarding who launch main activity or who filtering main activity from others(I think package manager does). 2.Once Activity is launched there will be no windows associated with that application until i call setContentView(layout id). 3.When i call setContentView(layout id),Activity creates a new Window inance and this window has some default root layout to which we set our layout . *I think this window have a Surface instance and is associated with native Bitmap ?Did this surface have a Canvas wrapper over native bitmap ? 4.Once Layout is attached to Window ,This window is added to Window manager. 5.Window manager gives gives all window(having Surface) on screen to Surface Flinger. 6.SurfaceFlinger based on visibility of window set pixels in FrameBuffer and displays to screen. I am not sure whether what i said above is right or wrong.Please correct me if my understanding is wrong. Also add extra processes happening whilhe application start up. Thanks and have a Nice day :) -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: ScrollView resize issue with LinearLayout
Please give some suggestion i am stuck -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] ScrollView resize issue with LinearLayout
Hi, I have a scrollView with linear layout as child Layout .This child linear layout has two other linear layout in vertical orientation .Layout follows ScrollView/*height=wrap content*/ LinearLayout /*layout 1*/ /*height=wrap content*/ LinearLayout /* inner layout 1 */ //*height=wrap content*/ LinearLayout /* inner layout 2 */ //*height=wrap content*/ /LinearLayout /ScrollView Inner layout 1 and 2 contains dynamic number of views. So i am expecting the scrollview to resize based on child contents(number of views) but the output is , when i remove inner layout 1 child views the scrollview is not resizing it remains same height as before removing its child views. But behaviour is proper when i remove inner layout 2 child views. Please help why this unexpected behaviour of scrollview. Thanks in Advance . -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] ExpandableListView How to get bitmap of each item separately
Hi, I am trying expand/collapse animation in expandable listview but i am stuck :( i have two group each with some dynamic number of items. so when first group expands, second group slides down (along with its child items) smoothly and displays first group child items with some alpha animation. I got idea for this animation but i have to get bitmap for each (group and child) and draw this bitmap on surfaceview canvas with some logic but problem is how to get bitmap for group/child items . I tried following and got first group bitmap : View mView = mExpandableListView.getChildAt(0); mView.setDrawingCacheEnabled(true); mView.setDrawingCacheQuality(DRAWING_CACHE_QUALITY_HIGH); Bitmap sweet = mView.getDrawingCache(); but how to get bitmap for particular group /child generically ? Please help me with your valuable comments :) Thanks and regards -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: ExpandableListView How to get bitmap of each item separately
Hi Treking Thanks for your reply :) I am facing one issue even for getting bitmap of first group item. My group item layout/UI changes in expand and collapse state . If i get drawing cache in expand state i am getting bitmap correspond to collapse state ... How to get latest bitmap of corresponding group ? Thanks and regards Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] activityCloseExitAnimation not working
Hi, I tried to apply enter/exit animation to my activity using following style resources style name=VizioActivityAnimation parent=android:style/ Animation.Activity item name=android:activityOpenEnterAnimation@anim/ launch_left_to_right/item item name=android:activityCloseExitAnimation@anim/ close_right_to_left/item /style /resources When i start my application the main activity is entering with animation but when i press back button its exiting without animation. please help !! Thanks and regards Mansoor -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] activityCloseExitAnimation not working
Hi, I tried to apply enter/exit animation to my activity using following style resources style name=myActivityAnimation parent=android:style/ Animation.Activity item name=android:activityOpenEnterAnimation@anim/ launch_left_to_right/item item name=android:activityCloseExitAnimation@anim/ close_right_to_left/item /style /resources When i start my application the main activity is entering with animation but when i press back button its exiting without animation. please help !! Thanks and regards Mansoor -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Expandable ListView : A special scenario
Hi Treking thank you very much for the best solution. It worked :) -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] How to acheive following scenario in Expandable ListView.
Hi , Consider a expandable listview with two parent item Parent1 and Parent2 . Each item have some child item. -- Parent1 -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Expandable ListView : A special scenario
Hi , Consider a expandable listview with two parent item Parent_1 and Parent_2 . Each item have some child item. -- Parent_1 -- Parent_2 -- if Parent is in collapsed state i want to show a view(for example a TextView) down that parent -- Parent_1 -- TextView - Parent_2 -- TextView -- if Parent is in expanded state the textView should be in gone state and corresponding child items is showned --- v Parent_1 --- child items. -- Parent_2 -- TextView -- I got a alternate solution by creating two expandable listview with 1 parent item each. and a textview down to each expandable listview. so when fexpandable listview expand/collapse i make corresponding textview gone/visible. But problem is i want to scroll both expandable listviews and textviews as a one unit .for that i used scrollview as follow: ScrollView ExpandableListView/ TextView/ ExpandableListView/ TextView/ /ScrollView But am not getting expected scroll behaviour. I know above approach is not proper as listview should not be contained inside scrollview . Is there any better solution for this problem . please share your valuable suggestion and help me. Thanks and regards Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Why seekbar progress background always rounded corner ?
Hi, I am using a red rectangular image as seekbar progress background but background is always drawing with rounded corner. how can i make it as rectangular without rounded corner? Following is my seekbar layer-list: ?xml version=1.0 encoding=utf-8? layer-list xmlns:android=http://schemas.android.com/apk/res/ android item android:id=@android:id/background android:drawable=@drawable/mybackground corners android:radius=0dp/ /item item android:id=@android:id/secondaryProgress clip shape corners android:radius=0px / gradient android:startColor=#80ffd300 android:centerColor=#80ffb600 android:centerY=0.75 android:endColor=#a0ffcb00 android:angle=270 / /shape /clip /item item android:id=@android:id/progress scale android:scaleWidth=100% android:drawable=@drawable/progress / /item /layer-list please help me .. Thanks and regards Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] FLAG_ACTIVITY_CLEAR_TOP VS singleTask launchMode
Hi all,
I am bit confused after reading documentation about
FLAG_ACTIVITY_CLEAR_TOP and singleTask launchMode
In documentation it given as :
{
FLAG_ACTIVITY_CLEAR_TOP
If the activity being started is already running in the current
task, then instead of launching a new instance of that activity, all
of the other activities on top of it are destroyed and this intent is
delivered to the resumed instance of the activity (now on top),
through onNewIntent()).
There is no value for the launchMode attribute that produces this
behavior.
}
But i experimented FLAG_ACTIVITY_CLEAR_TOP behaviour using
singleTask launchMode and i got exactly same . I created 3 activies
Activity_A,Activity_B and Activity_C. In manifest file i set
android:launchMode=singleTask for activity B. Each activity have a
button to launch next activity ie Activity_A launches Activity_B
launches Activity_C launches Activity_B.
so this is the order in which i launch activity ABCB.
In case of FLAG_ACTIVITY_CLEAR_TOP:
I did ABC then as per documentation i started Activity_B from
Activity C using intent with flag FLAG_ACTIVITY_CLEAR_TOP so Activity
C is destroyed and back stack contains AB .
In case of singleTask launchMode in Activity_B:
i followed same procedure as ABCB above instead of
FLAG_ACTIVITY_CLEAR_TOP flag i used singletask launch mode . finally
the back stack contains AB .
So what is difference between both ?In documentation it says There
is no value for the launchMode attribute that produces this behavior
as of FLAG_ACTIVITY_CLEAR_TOP but I got same behaviour with
singleTask launchMode ..
Please clear my understanding
Thanks and regards
Mansoor V.M
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[android-developers] Re: Adding animation to LinearLayout
hi, In your onCreate method u doing something wrong LinearLayout layout = (LinearLayout) findViewById(R.layout.menu); u have to give linear layout id instead of using R.layout.menu it should be somthing as follow: LinearLayout layout = (LinearLayout) findViewById(R.id.your linear layout id given in xml); regards Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] HoneyComb VolumePanel customization issue
hi, i am trying to customize VolumePanel UI in honeycomb but i am not able to make the volumepanel bottom of screen. i changed following code snippet in VolumePanel.java to make the dialog bottom of screen // Change some window properties Window window = mDialog.getWindow(); //window.setGravity(Gravity.TOP); window.setGravity(Gravity.BOTTOM); WindowManager.LayoutParams lp = window.getAttributes(); lp.token = null; lp.type = WindowManager.LayoutParams.TYPE_SYSTEM_ALERT; window.setAttributes(lp); window.addFlags(WindowManager.LayoutParams.FLAG_ALT_FOCUSABLE_IM); i changed setGravity to bottom but still dialog(contains custom layout) not coming to bottom.it is displaying somewhat middle only ? am missing anything? I also tried to show a toast from volume panel that also not showing in bottom ? Please help ... Thanks and regards Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] How to set width and height of a View in DP through code not in XML ?
hi , i am creating a Image view through code dynamically based on certain condition as below: ImageView t = new ImageView(mContext); t.setLayoutParams(new LinearLayout.LayoutParams(390, 300)); the width and height is in PX i.e 390 PX and 300 PX but i want to know how to set width and height in dp instead of px programmatically . In xml we can do but i have no idea how to do it in code please help me . Thanks Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: How to Declare file write permission in framework code
hi Dianne Hackborn, is there any better way to handle this issue instead of modifying launcher ? -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] How to Declare file write permission in framework code
hi friend, i created a custom listview in framework path: /froyo/frameworks/base/core/java/android/widget/ and i am using this listview inside homescreen widget just like analog clock. Inside this custom listview as per my requirement, i am creating a file output stream as FileOutputStream out = new FileOutputStream(sdcard/share.png); But at this line i am getting a FileNotFoundException (permission denied ) even i set android.permission.WRITE_EXTERNAL_STORAGE in my widget manifest. Please help me how can i set the permission for my custom listview in framework ? Thanks and regards Mansoor V.M -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: How to Declare file write permission in framework code
hey thanks a lot Kostya Vasilyev and Chris Stratton for your kind reply :) i resolved the issue by adding uses-permission android:name=android.permission.WRITE_EXTERNAL_STORAGE/uses- permission tag to Launcher application manifest . Thanks a lot once again :) -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Gestures in custom view?
hi friends,
I am trying to handle fling event in my custom view using gesture
detector but onFling() method is not calling .code snippet for
handling fling follows
public class CustomView extends View {
private GestureDetector gestureDetector;
public CustomView6(Context context, AttributeSet ats, int
defaultStyle) {
super(context, ats, defaultStyle);
gestureDetector = new GestureDetector(new MyGestureDetector());
}
@Override
public boolean onTouchEvent(MotionEvent e) {
Log.e(,ontouch);
if (gestureDetector.onTouchEvent(e)) {
return true;
}
return false;
}
class MyGestureDetector extends SimpleOnGestureListener {
@Override
public boolean onFling(MotionEvent e1, MotionEvent e2, float
velocityX, float velocityY) {
Log.e(,onFling);
return true;
}
}
}
Am missing something? please help me...
Thanks and regards
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[android-developers] Re: Water ripple effect
Thanks robert green . and all who replied to the post. I acheived the ripple effect by drawing the water background on a 2d mesh and generated ripples by using sine wave function.Ripples are quite realistic and good.once again thank u all :) -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Water ripple effect
hi treking, i am expecting some technical advice to acheive ripple effect ...if anyone know it please share.. Thanks and regards -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Water ripple effect
hi friends, i am trying to create a ripple effect one similar to water live wallpaper in nexus one.please give me direction to acheive it. Thanks and regards :) Mansoor -- You received this message because you are subscribed to the Google Groups Android Developers group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
