Android : Way To Handl Key Events In A Paused Activity?
May 4, 2009
A main task and a secondary task - the secondary task has only one Activity - when that Activity is paused (e.g. Home key pressed), a notification is inserted to the Notification Bar, so that the user can go back to it (such as voice call does) My problem is: I need the paused Activity to receive key events. 1) Is that possible? 2) If so, how? (I have already tried setting "takeKeyEvents(true)", but whenever I press a key, the "Bookmarks" activity comes to the foreground)..
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Jun 9, 2009
I've searched for a few hours for a solution to this, so hopefully this isn't a repost I'm setting a shortcut on the Home screen which raises an Intent to my application - the problem is that I don't want to show my app, just run a little code and display a Toast notification. This must be possible - I just can't work out how.. Once I'm handling the shortcut Intent in onCreate() the UI has initialised and I get a little screen flicker if I then run my code and finish().
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Sep 25, 2010
I need to apply different layouts for portrait and landscape orientations of my activity. Besides, I need to show alert if orientation is portrait. Why onConfigurationChanged is called twice? How can I avoid it?
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May 25, 2010
I have a multithreded app where background threads are used to load data over network or from disk/db. Every once in a while user will perform some action e.g. fetch news over network, which will spawn a background AsyncTask, but for some reason user will quit the app (press back button so that activity gets destroyed). In most such scenarios, I make appropriate checks in the background thread after it returns from n/w i/o, so that it won't crash by accessing members of the activity that is destroyed by now. However some corner cases are left where crashes happen, because the background thread would access some member of activity that is now null. Do other Android developers have some generic/recommended framework to handle such scenarios?
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Jun 20, 2010
In one of my Activities I have a ListView that displays a list of locations. For each list item I want a little arrow icon that points in the direction of the corresponding location. I implemented this icon by extending ImageView. This custom View has a listener that reacts to changes of the device's orientation by rotating the icon image accordingly. I register the listener in the onAttachedToWindow() method and unregister it in onDetachedFromWindow(). This kind of works but the problem is that onDetachedFromWindow() sometimes gets called only a long time after the containing Activity has paused. Also, the whole layout overall seems a little hacky. So my question is: Is there a proper way to unregister the listeners or would you implement this in a completely different way to begin with?
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Dec 20, 2009
I wanna know how to pass data from current Activity to paused Activity?
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Sep 28, 2010
Is there any event triggered on an activity when I call startActivity("activity_id", myIntent);
If the Activity exists already. I pass a parameter to the activity via i.putExtra("someID", someSerializableObject ); and would like to call a method to refresh a WebView. Right now, the call on startActivity brings the activity in the foreground but the webview does not display what i want.
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Dec 2, 2009
I have an Activity which has no window (but it has a view). I'm using: getWindowManager().addView(view, params);I've attempted to call takeKeyEvents(true), however I see that takeKeyEvents first retrieves the Window and then calls takeKeyEvents on that Window.In my case, the Window is null.What this means is that I never receive onKeyUp and onKeyDown calls, which I need in order to intercept some key presses from external input devices (similar to a handsfree set for example).
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Jul 21, 2010
I'm trying to figure out a way to send touch events to the foreground activity. Essentially I want to write something that allows me to run it from the shell and just say "I touched this co-ordinate", so that I can automate some UI tasks for testing. Essentially what Monkey does, but application agnostic.
I think that android.view.MotionEvent holds the key, but I'm not sure how to run something without view so that I don't interfere with what is on the screen. Perhaps with a service, but I'm unclear how that would work.
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Apr 23, 2010
I have an Android activity with an ImageButton. I would like to execute some logic when the button is clicked and show a different image for the pressed state, but also receive the touch event on the activity.
By default only the button receives the touch event. If I set the clickable attribute of the button to false then only the activity receives the touch event.
What's the best way to implement the touch event in the activity and the click in the button?
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Mar 10, 2010
My application needs to display the time. Rather then displaying time as 11:00 I am wondering whether it is possible to have to have static/paused/stopped analogue clock showing 11' o clock?
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Mar 14, 2010
I need to create paused analog clock. Since I have never done any graphics/drawing before I am customizing Analogue widget defined in the core/java/android/widget.
The problem is when I create the class in my project following are the unresolved references: mContext com.android.internal.R mRight mLeft mTop mBottom
I know the most likely cause is com.android.internal is private and I need to use public but the problem I do not know what the public equivalent is. I have tried substituing it with android.R but that doesn't seem work either.
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Apr 20, 2014
I am using our country local brand walton primo gh2 phone. In notification area i see "Downloading English (US) ", under it download paused. First three or four time i tapped and hold and its took me to Language and input option and shows me that update and every time it stacked on 64%. after that when i again i tapped and hold it shows just app info nothing else and i cant remove it from my notification area. Its very annoying to see and some file goes to queue under it too download never start and i have to restart downloads. I am using android 4.2.2.
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Dec 8, 2009
I'm trying to determine whether or not my phone is defective, or if this is a current problem with the Cliq.
Of the apps I've downloaded, only a few of them have worked. Of those few that work, some don't work right. Has anyone had problems with these apps crashing on them, or just not working correctly?
- Nice Battery (see description at bottom of: My Ultimate CLIQ settings (so far))
- WeatherBug (kept showing the wrong location, crashed when trying to change location)
- Snake - doesn't work just says its "paused"
- RingDroid - crashes when I select the "Facebook Pop" button
- Layar - screen is rotated 90 degrees at all times
There have been others, but usually I just uninstall them right after discovering it doesn't work right.
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Nov 13, 2009
Not the corp calendar, the regular one. I have a band I go listen to, and I want to enter their schedule in my calendar. Generally the same times and locations, so it would be cool if I could just copy an event to a new date and use all the stuff I already entered. Or make changes to any detail if I need to. This would also be useful for irregular meetings of any type. It is NOT a recurring event.
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Sep 15, 2010
I'm just getting up to speed in Android, and today in a project meeting someone said that Android has no native calendar app so users just use whatever calendar app they like.
Is this true, and if so how do I programmatically add an event to the user's calendar? Is there a common API they all share?
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Sep 9, 2009
I understand how to call methods on a service (aidl, etc...), but how does a service event information out. how does it generate events back to the application?
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Aug 2, 2010
Whenever the memory needs to be reclaimed, the process is being killed by Activity Manager Service in killPidsForProcess. I have a back button in my activity window on right corner of the title bar.
I want to kill the activity completely on clicking the close button. Can I reuse the same function and will it have any major effect? Please help me out in this.
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Jan 20, 2009
I want to be able to show the Battery Info activity in my app, which shows things such as the exact level, battery health, etc.I'm not sure how I can get it, though a few applications such as Power Manager, Any Cut, etc. show this screen as well. I found in the source code of Settings this intent in a file called testing_settings.xml,But I don't know how to use it. I would guess from the fact that Any Cut has a list of activities, that a list of said activities exists somewhere, and therefore an easy way to access them exists, but I haven't found it.
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Aug 27, 2010
My app is comprised of a set of reusable Activities that other apps can reuse. For various reasons, I would like my Activities to be launched in context of the invoking Activity's process, instead of always being launched in my Activity's process (default behavior on Android). How can I achieve this?
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Mar 3, 2010
So I have an app with Activity A. The layout on the activity is dynamic genearted. So it's possible that on Activity A a user hits a button that goes to "A" and the new page looks different, then a user clicks another button to go to "A" again. Now I have 2 Activities in the history stack. A, A, and currently on A. Is it possible that if a user clicks a button that the whole Activity stack is cleared in a scenario such as this?
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Apr 27, 2010
How to finish any previous activity in application stack (at any level , I mean not immediate parent) , from current activity like on some particular event I want to invalidate this previous activity?
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Jul 26, 2010
How can I make sure I only retain one copy of an activity on the stack when called from non-activity? When called from an activity I can just add the FLAG_ACTIVITY_REORDER_TO_FRONT flag to the Intent, but how can I do this from e.g. a widget or a notification?
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Aug 21, 2009
I have a problem to start/create Activity in landscape mode. My Activity need to start in landscape mode and be used in landscape mode by users. So far, I used setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) to force screen orientation of my Activity to landscape mode in onCreate() method.
In addition to this screen mode requirement, my application need to start another background thread in onResume() method, and this thread takes some seconds in order to finish an initialization process, and it is not desirable to to stop/restart this thread's service during the initialization process.
However setRequestedOrientation (ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE) forces my Activity restart in a very little while (means onCreate->onResume->onPause->onStop are executed twice at the first place). As a result, my background thread be stopped/restarted during the initialization process, and this makes me a mess at this moment.
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Nov 5, 2010
The default behavior from my observation is if current activity force closes Android tries to go to previous activity on stack How can I control this behavior? I want force close to close all activities
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Jul 19, 2010
Im writing a program that offers a quick reply dialog upon receipt of an SMS.
However, I am getting an unexpected result. When I receieve an SMS, the appropriate dialog activity comes up displaying the correct phone number and message, however there is a second activity behind it that is the 'default' activity in my program (it is what opens when i launch my application)
I do not want this second activity to come up. The quick reply activity should come up by itself over top of whatever the user was doing before.
The 'floating' activity:
CODE:.........
The call to the activity inside an onReceive()
CODE:..............
The Manifest:
CODE:.................
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May 16, 2010
I'm writing an application that starts with a loading activity. In the loading activity the app requests html from web and parses the html, then it sends the parsing result to the main activity. The main activity has several tabs, and contents of these tabs are based on the result of parsing.For example, the result of parsing is a list of strings ["apple", "banana", "orange"], and I need to pass this list to main activity, so that the main activity can create three tabs named after three fruits.I would like to know if there is any way to pass a list of strings among activities, BTW, is it the common way of do this?
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Mar 3, 2010
example scenario is: from login screen - main screen - then when i clicked a hide button inside the mainscreen, the app will need to go in the home screen, and when im going to click the app again the main screen would be called and not the login screen
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Feb 18, 2010
have an activity which launches another activity, via a button click. By default, on newer OS versions of android, the OS will animate the new activity sliding in from right to left.Is there a way to disable this animation? I just want the new activity to appear without any sort of animation.
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Aug 12, 2010
I'm working on an app that launches the browser activity to perform a Twitter OAuth authorization. This process uses a callback url which will re-launch the activity that started the browser activity in the first place.My problem is that the browser pages remain in the history stack and when the user then clicks back from the preferences activity that launched the browser in the first place, they don't go back to the app's main activity, but instead are brought back to the browser. I've tried adding flags to the launching intent to prevent history and reset on clear, but it doesn't seem to work when running on my phone, only on the emulators.
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