Android :: Re-open Background Application Via Notification Item
Jun 2, 2010
I got an app with tabs and a notification bar entry, when I send it to background (click on home button) and try to re-open the application via click on the notification bar, the app restarts (last selected tab is lost).
When I hold the home button if the application is in the background and select it from there or click the app's icon on the homescreen, the previous state is restored per default (the correct tab is selected)
IMO the intent of the notification is wrong, but I'm not sure how to fix it.
In short: How to get a background application back to foreground when I click the notification entry?
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Sep 26, 2010
I would like to change the background color of a ListView Item after it has been touched until a further event.
This is my code:
CODE:............
Changing the background color of view yields weird results.
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Feb 16, 2010
CODE:.............
This is my current row. If I created a .JPEG, and I want that to be for each item...how would I change this .xml file? Where would I put the image? In Assets?
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Mar 10, 2010
I have a background color applied to a ListView but everytime the list is scrolled the background color changes back to the system default (black). When the scrolling stops the color goes back to @color/window_background.The style is applied in AndroidManifest.xml:<activity android:name=".event.EventList" android:theme="@style/CKButtons"></activity> and my ListView looks like this: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
><ListView
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:id="@+id/android:list"/>
<TextView
android:id="@+id/android:empty"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:text="@string/eventlist_no_items"/>
</LinearLayout>How can I prevent this from happening?
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Apr 1, 2010
Is it possible to apply a custom background to each Listview item via the list selector?
The default selector specifies @android:color/transparent for the state_focused="false" case, but changing this to some custom drawable doesn't affect items that aren't selected. Romain Guy seems to suggest in this answer that this is possible.
I'm currently achieving the same affect by using a custom background on each view and hiding it when the item is selected/focused/whatever so the selector is shown, but it'd be more elegant to have this all defined in one place.
For reference, this is the selector I'm using to try and get this working:
CODE:...............
And this is how I'm setting the selector:
CODE:.........................
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Apr 16, 2010
I am trying to overwrite the default backgroud color of List item which is holding the focus in the ListView. As you can see, in Android Setting Menu, when you scroll through the ListView, the focused ListItem has a red backgroud to highlight its focus. Does any way to change the default behavior by highlighting it with other color or just a bottom red line under this Item.
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Jul 17, 2009
I am using openContextMenu() when someone clicks on an item of a list (not when they long press as usual). The context menu does appear, however, it shows the context menu for the last item that the context menu had appeared. For example, if I long press the item C of the list then the context menu for item C appears, and later if I click on item B, with openContextMenu() the context menu for item C will again appear, not for B that I was expecting. How can I set the current item for which the context menu will appear to be the item of the list the user clicks on? I do have the position from onListItemClick() and I was trying to find a call like setContextMenuItem() or something, but I can't find anything.
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Dec 10, 2009
I am trying to use the long press option on the listview items to open a multi choice Alert Dialog. Is this possible?
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Apr 17, 2009
Im trying to change background color when an item is selected. Something like using a color selector, but actually it crashes. I've created a list_selector.xml inside /res/color/.<?xml version="1.0" encoding="UTF-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"><item android:state_focused="true" android:color ="@ color/ plain_yellow"/><item android:state_pressed="true" android:state_enabled="false" android:color ="@color /plain _yellow" /><item android:state_enabled="false" android:color="@color/ plain_yellow" /><item android: state_active="true" android:color="@color/ plain_yellow" /><item android:color="@android: color/ transparent" /></selector> plain_yellow is a color i've defined in /res/values. I've tried to assign that selector programatically and using the xml, but the app crashes. Am i doing something wrong?
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Sep 6, 2010
CODE:......
When i select an item random other items background also gets changed although they are not added to the array names and numbers. i need only the background of the selected item tochange..is there a way to do this without creating my own listadapter ?
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Jun 28, 2009
If you derive a class from ArrayAdapter for the purpose of customizing the views of listview items, and you vary the background color of those items by doing something like this in getView()...
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Jun 1, 2009
I have a ListView containing a few different type of items, all having their own background image and font color. In my first implementation I implemented each type of item as its own layout with the background image etc defined in XML (and implemented Adapter.getView() so that it only reuses convertView if it's of the correct type). This works fine but the performance is not that great while scrolling since I'm inflating quite a few Views due to convertView mismatches, so instead I tried using the same layout for all items (to benefit fully from convertView reuse) and changing the background image and font size in runtime. I even keep the three background Drawables I need as members to save time decoding them from a resource for each item, and call View.setBackgroundDrawable() from Adapter.getView(). The problem is, sometimes the 9-patch is not correctly wrapped around the content of the list item when using this approach. While scrolling it usually looks correct but when the scrolling stops, or sometimes when I just tap anywhere on the list, the background 9-patch of some large items starts flickering and is either cropped or resized to its original PNG size rather than stretched to wrap the content.
First of all, I suspect this is a bug? Any ideas why this happens? Could it be that the View is not always measured to reflect the changed content when the 9-patch is applied? I have tried adding an extra call to View.invalidate() but it doesn't solve the problem. Second, does this approach sound reasonable at all, or how should I go about to optimize this scenario?
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Dec 14, 2009
I'm using ExpandableListView in my app and one of the complains is that when expanded it's hard to visually distinguish where the child item ends and next group item begins. So I would like to change background of the child list item to the different shade. Brutal attempts that I've made so far were based on directly changing background color and text of the elements inside the child view item but that leads to loss of hovers and highlights. So my question is - what is a good strategy to achieve the above? I tried styles and selectors but what really bums me out - that if I change one thing then I need to add selectors for all combinations of focus/enabled etc. when all I'm trying to do it to overwrite a single thing. Is there a way to inherit parent style and set just a background for non- focused, enabled child item?
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Jul 22, 2010
Somehow when I select icons and menu items now, it's bright red.I'm pretty sure it wasn't there before.Where can I change that back? What was the default color?Even if someone doesn't know the answer, can someone at least select any icon on one of their home screens and tell me what color the background turns.Argh, there's got to be a way to change it.
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Apr 18, 2013
I have to develop one android application.
Here is the scenario:There are many images in a linearlayout. When selected, the layout should be displayed with another(gradient_bg_hover.xml) background. This works well now.
Now, I would like that when I open a new activity and come back to this one, the last selected layout should still be the highlighted one (with the (gradient_bg_hover.xml) background).
Now i have used below code for highlighting the image when pressed:
[HIGH]
LinearLayout ar = new LinearLayout(this);
ar.setOrientation(LinearLayout.VERTICAL);
ar.setPadding(3, 3, 3, 3);
ar.setLayoutParams(artiLayoutParams);
ar.setGravity(Gravity.CENTER);
ar.setBackgroundColor(Color.parseColor("#666666")) ;
[Code]...
In OnClick function i have wrote the below code:
[HIGH]
private OnClickListener mArticleClick = new OnClickListener()
{
@Override
public void onClick ( View v )
{
int object = v.getId();
v.setSelected(true);
[Code]...
Here i have to clicked one item means it is go to next activity.afterthat i have clicked back button means the selected item is stay on highlighted with another background.afterthat i have selected another item means its go to next activity.now i have to click back button means these item only highlight with background....but the pervious item also highlighted....
I wish to need the o/p like :
The last selected item only highlighted after click the back button...
So i have used sharedpreferences :
I have declared int prevPosition = -1; globally...
[HIGH]
ar = new LinearLayout(this);
ar.setOrientation(LinearLayout.VERTICAL);
ar.setPadding(3, 3, 3, 3);
ar.setLayoutParams(artiLayoutParams);
ar.setGravity(Gravity.CENTER);
[Code]...
In Onclick method:
[HIGH]
private OnClickListener mArticleClick = new OnClickListener()
{
@Override
public void onClick ( View v )
{
int object = v.getId();
[Code]...
But my background color is not staying after press the back button...
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Dec 8, 2009
I have had open home (full version) for a few weeks now and I'm very pleased with it so far. The last couple of days I have been rearranging my folders and widgets and some of the open home settings.I also changed my background but when I chose the picture I wanted I only got the option of cropping in portrait. Now the background doesn't move from side to side when I change screens.I am assuming it's a setting I changed when I was playing around but I can't find any way of changing it back to the original landscape background that moves from side to side.
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Sep 27, 2010
I am currently playing about with lesson 08 here http://insanitydesign.com/wp/projects/nehe-android-ports/ I would like to change the background colour from black to white. In order to do this at the start of onDrawFrame() I have called gl.glClearColor(1.0f, 0.0f, 0.0f, 0.0f); This does indeed set a white background screen, but also results in nothing else showing up on the screen! Clearly this is therefore an incorrect method, but why, and how do I fix it?
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Sep 13, 2010
i'am trying to load an url in background using the default browser. So the user can switch to the browser whenever he finished reading the current activity and the page is already loaded. Is there a way to fire an Intent (Browser) but stay in the original Activity? I'am aware of the FrameLayout approach with setting the visibilty but this is not possible with the default browser.
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Nov 19, 2010
I have an Options menu up and running in my Android application and I've overridden the onCreateOptionsMenu, onOptionsItemSelected and onPrepareOptionsMenu methods to customize the menu a little. My question is related to keeping the Options menu open after the user clicks on a menu item. Basically, I'd like to be able to hide the menu until the user clicks on the device menu key. Once the user clicks on this key, I'd like to be able to hold the menu in place regardless of how many times the user clicks on menu items. If the user wants to hide the Options menu, they'd just need to click on the device menu key again. Is this type of interaction supported (or even advisable).
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May 3, 2009
I need some help using ListActivity. The API provides "onListItemClick" which you can override and is called when user selects an item in the list.
However I want the same type of functionality when an item in the list is selected. So as soon as user highlights something in the list I want my application to do something (like play a preview). I dont want to wait for user to select the button.
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Nov 3, 2010
I am creating like timer application and when I start timer I have option to go to android Home or start any other activity .When I start timer I set a notification bar icon and if i use some other application (mean go from started timer activity) and now I need to go to back to my previously started timer activity by clicking on notification icon?When I click I am starting a new instance timer activity , not the previously started timer activity and if I then click back button it show me a previously timer activity .Question is: How to call previously started activity trough notification bar , not to start new instance of that activity?
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Aug 5, 2010
I create an application which displays the notification when the service starts. If an user navigates to HOME screen (without exiting the application), the user could still go back to the previous application by pressing on the notification icon. This is very similar case as the track recording service in Google application "My Track".
I want the existing activity as Single Top activity since it has associated service running. However when my application tries to bring the existing activity to front via notification, the existing activity's onDestroy has been called which causes problem. How can I skip this onDestroy method? Here is my current codes:
CODE:............................
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Apr 9, 2010
I don't know exactly how to explain this problem, but I'll try. I have a ListView with several items. Each item has inside a TextView and two ImageView. I want the ImageView change when I click on them, and I want to open a context menu when I press for a long time into the ListView item.For the ImageView, everything works properly. For the whole item, I can show the context menu after a long press, but my problem is that the ImageView changes as well when I am pressing the TextView, for example.I hope you understand my problem. I think that all the children of a view are affected by an event in the parent, but I am not sure.
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Jun 23, 2010
I'm having another problem with my milestone that I'd like to share with developers and Android coders: Whenever I run memory-intensive applications while I have an IM app running in the background, the IM app is often killed without any user notification whatsoever.Take this scenario for instance (works every time on my Milestone): A few background apps are already running: Sipdroid, Locale, Titanium Backup's service... 2. Launch Nimbuzz (or Fring, eBuddy or Meebo - it's reproducible on all of them) 3. Use lots of memory - for instance with a browser (open lots of windows will full desktop sites), or by launching multiple memory- intensive applications at once (Maps Navigation or other navigation apps work well)
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May 31, 2010
When we expand the notification expanded view ,we get a default white background with small squares. how can i change this white background to some other color.
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Oct 30, 2012
Is there a way you can do this on Android? Like on iOS you can open up the notification bar in any app.
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Nov 11, 2010
Just got my D2 yesterday after spending way too long with the Eris... so far I'm loving it, but I have one question: do everyone's phones seem to randomly open 10-20 apps in background at all times? These aren't even apps I use, like a Sudoku game I haven't tried once yet. I'm not too worried about it, since performance seems to be fine, but I'm wondering if this will affect battery life.
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Nov 20, 2010
I jave a list of item (linearlayout inside a scrollview where i add buttons vertically to linearlayout dynamically from the java code)i need when i click on one button the item moves up (scroll up) , to make the item at the first of the screen
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May 25, 2010
I need to get an item's position in spinner knowing it's ID. I've tried to do it with Spinner and SpinnerAdapter classes but there are no corresponding methods there.
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Sep 9, 2009
Why cant we put a picture as a background in the notification bar,when you pull it down, you can customize everything else about the phone,but not this, can rooted phones change this?
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