Android :: Add Proximity Alert Firing Repeatedly
Jun 10, 2010
I am adding a proximity Alert with an expiration of -1 (does not expire). I am testing using an Evo. The proximity Alert fires several times after entering the location and staying inside the location. I was thinking that the proximity alert should fire once when you enter the location and fire once when you exit the location. Should the proximity alert fire multiple times after you enter the location and stay inside of the location?
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Mar 4, 2009
I wrote a simple app that uses proximity alerts and after installing it on my G1 found that battery life have been halved at least. It's so bad that phone needs to be recharged mid-day or it completely dies by 9pm. There is no polling of any kind - just proximity alerts (3 of them). I tried with GPS turned off (using network triangulation for coarse GPS location) but battery life is still abysmal. Is there a general solution to improve battery life with proximity alerts or the whole GPS thing is a non-starter on G1s?
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Oct 19, 2010
I am trying to register to several proximity alerts. Here's an excerpt:................
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Nov 15, 2010
I have a list in my app.
When a user touches a list item with their finger, the onListItemClick handler fires and I have it opening a new Activity.
However, when a user uses the trackball/pad to click, I want to perform some different functionality. I've overrode onTrackballEvent and everything works perfectly fine in the emulator's trackball mode.
Unfortunately, when testing on the Samsung Moment, clicking the trackpad fires the onListItemClick handler, not the onTrackballEvent handler.
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Feb 27, 2010
Any experts on AlarmManager out there?I've got something weird going on.The basic code to set my repeating alarm works fine. I can close my app and the alarm will continue to run like clockwork every five minutes. It works fine only if I set it in the app and then close the app.I've got a registered BootReceiver for re-registering the repeating alarm. I know it fires on boot b/c the log message clearly shows it is firing and re-setting the repeating alarm in question for the same frequency. But the AlarmManager is not firing.Basically, the nearly identical code for setRepeating() fires when set from the app and continues to run when the app is closed, so I know my AlarmReceiver is functioning, but the AlarmManager is either not broadcasting this alarm or my receiver doesn't work from an alarm set in the boot receiver.
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Sep 20, 2010
I have a listview managed by an adapter that is extending BaseAdapter.
In the getview function im using the convertView to set up a OnClickListener. This OnClickListener work well when I am touching the screen but if I use the trackball of the HTC Desire, I see the row flashing on the screen, but the OnClickListener is not called...
I've read the android dev guide : http://developer.android.com/guide/topics/ui/ui-events.html
and its say that I should receive a onClick event from the trackball...
Im putting here my getview code in case someone see anything strange.
CODE:..............................
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Aug 8, 2010
I have a grid view of buttons that is generated by a CursorAdapter. When the CursorAdapter is passed to the Gridview the view renders correctly however the first item in the grid does not fire the OnClickListener event.
If I select another button in the grid, the event fires correctly however if I selected the first button then another button, it loads the first button action then the section button action.
When testing this, it only seems to be an issue in Android 2.2 on my emulator, my 1.5 phone works as expected. I've wiped the emulator but that doesn't seem to have made a difference.
CODE:.............
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Sep 25, 2010
Is any way to build and fire an event (e.g. on click event) in android applications programmatically.
I have an Activity (lets call it A) with multiple views (5 ImageView for example). And a normal Java class (lets call it B) which is used by my Activity. here is an instance of B in my Activity. If user click on a View (Image View) the view OnClickListener calls a method in B In B, if operation is successful, it will call back a method in activity again. in activity method, It will change image or state for clicked ImageView.
I the other hand: click on view (x) in Activity -------> B.doSomething() --------> A.bIsDone() -----> change image for view (x) with normal execution, its working and there is no problem. the problem is that I want to simulate this process to be automatic, my code looks like this:
CODE:.............
The issue is that, it won't render anything, until the end of the loop.
I tried to put the loop in another Thread, but its throwing exception: android.view.ViewRoot$CalledFromWrongThreadException: Only the original thread that created a view hierarchy can touch its views.
What can i do for this issue? i was think generate an click event on view (by code), to see it can help or not.
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Dec 3, 2009
My app has been pretty stable for a while, and today out of the blue something called ProtoRequestListener has started intermittently throwing WatchDogExceptions. there's no path through to my code, so i can't even catch the exception and do something about it. i googled around a bit and it seems to be connected to Maps somehow.
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May 25, 2010
I use Google Voice for all SMS notifications. I use the Gmail application for my email.Does anyone know of an application that will vibrate my phone at a certain interval, e.g., every 2 minutes, until I actually open my phone and acknowledge that I've received the notification?I would LOVE THIS! I used to have a phone that did this and it came in handy. I find that my Incredible's vibrations are a little light, and I often miss important texts when it's on vibrate.
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Sep 7, 2010
My requirement is to draw a line on canvas for every second. I am able to draw the line but its clearing the previously drawn lines when I call myview.invalidate(). Now my question is how to draw a new line retaining all the previously drawn line on the same canvas.
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Dec 8, 2008
I have the following problem: when i try to play a sound over and over again, it sometimes (actually most times) is not played.the documentation says that one should use the media player in the following sequence if a sound should be played several times: is this the wrong approach? is there a more performant way to reset the pointer in the sound sample so that it can be played from the beginning? i tried using mediaPlayer.seekTo(0); but it didn't help. Code...
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Dec 10, 2009
I am working on my first android app and so my first with the Maps API and am experiencing an odd problem. How ever when I click the screen it seems the onClick event is not being run?Have I missed something or am I better off sub classing the MyLocationOverlay I am using and override DispatchTap?How ever i would rather be able to just click anywhere on the map to dispatch the event.
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Sep 30, 2010
In fact, only the touch_down event will fire. Basically, I'm trying to implement a drag feature in my app so I need the touch_move event. I have a method that writes out the touch events to the LogCat in Eclipse but the touch_down is the only event that shows up. not even touch_up shows up. I have this problem when I debug on the device or in the avd.
This isn't really a code question. But has anyone had an issue getting different touch events to fire? If so, how did you resolve them? I'm using the latest Android SDK and Eclipse version. I'm using a simple ImageView.
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Oct 28, 2010
Following is simple html, when viewed on android browser(nexus one) results into continuos orientationchange event chain when you change phone's orientation just once.
CODE:........................
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Aug 17, 2010
A Follow up to this question: http://stackoverflow.com/questions/3488880/group-of-views-controls-on-multiple-screens
I have created a parent class and a child class that inherits from it. When I set the OnClickListener in the child class, the event fires when the button is clicked. When I move the set OnClickListener to the parent class, the event doesn't fire. I've got to be missing something obvious but I just don't see it.
CODE:............
Child Class:
CODE:.........................
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Mar 3, 2010
I'm creating a spinner and I've added an OnItemSelectedListener to it. However I've noticed that it fires on create. Now I was wondering if there was a way to ignore/discard it. I know I could use a boolean value, but that's a bit "dirty".
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Jul 9, 2010
I'm trying to implement pinch-zoom in an app I'm making and am having issues with the onTouch event. It appears that the pointer up & down actions do not fire immediately, like you won't get a pointer up or down until an action move occurs. So what happens if both fingers hit the screen nearly simultaneously is that the 2nd finger (should be pointer(1)) gets a move action before pointer down is called, making the code think it's a DRAG not a pinch zoom.
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Oct 28, 2010
I am developing an app where a single activity is instantiated multiple times by itself. I guess you could think of it like a book where each activity is a page. At the end of the page (activity) the user presses a button to go to a new page. I fire off an Intent for the same Activity, but I push different data into the Bundle so that a different page is loaded. This works fine, and I like the fact that the user can back up to a previous point, but my question is whether this will eventually be a problem? What happens if this activity is instantiated 10 times, or 50, or 100? Will the device run out of memory, will GC come along and clean up old activities, or what? If GC does clean them up, what happens when the user presses Back and the previous Activity is no longer on the stack? Is it better to keep track of the user's path, finish() the activity, and override the Back button so that whether the user is moving forward or backwards, I only load a single Activity? Another approach I could take is to refresh all the data on the page so that it's still the same activity, but with new data. The Back button would not work as expected in this case.
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Jun 19, 2010
Have been using a SQLite database, Theres a situation where i have a list which displays all the "name" field data of a table "table1". Now i have a button to insert data in "table1". The list is populated using a simple cursor adapter which is passed a cursor "cursor1" populated with the data. "cursor1" is prepared using the SQLite query - "SELECT * FROM table1". Now the moment i insert data, i need to update the list too.
My question is- will the Adapter sense the database change automatically (i guess not)?
using cursor1.requery() is correct or should i use cursor1 = db.query("table1", null, null, null, null, null, null);
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Apr 1, 2010
I've thought of some less than elegant ways to solve this, but I know I must be missing something.
My onItemSelected fires off immediately without any interaction with the user, and this is undesired behavior. I wish for the UI to wait until the user selects something before it does anything.
I even tried setting up the listener in the onResume, hoping that would help, but it doesn't. How can I stop this from firing off before the user can touch the control?
CODE:...........................
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Feb 24, 2010
I am currently firing an Intent to a Broadcast Receiver which in turns starts an Activity.
Then from the same Service another Intent is fired to a Broadcast Receiver thats in the Activity.
The problem is that the Activity isn't getting the Intent meant for it because it is fired before it is alive and the Broadcast Reciever is registered.
I was wondering is there anyway to make sure an Activity is alive before sending an Intent?
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Sep 13, 2010
For some reason the onPageFinished is firing before the WebView has finished loading -
I can't figure out why...
CODE:.............................
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Aug 31, 2009
We have an Activity which has a form on it and we launch an Intent to take a picture.We've overridden onSaveInstanceState and onRestoreInstanceState to push the data from the view fields But, on the return from the CameraActivity, the onRestoreInstanceState method is never called. Should this behavior work when calling another Intent?
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Apr 10, 2010
In my android app, I'm setting an alarm that I want to occur repeatedly, hence using AlarmManager.setRepeating().
I don't want to keep track of whether the alarm is set myself (sounds like a bad idea that's prone to fail at some point), and there seems to be no API support for checking whether a particular alarm is already set for a given Intent.
Hence, I am pessimistically resetting the alarm each time my app activates:
alarmManager.cancel(pendingIntent);
...
alarmManager.setRepeating(..., pendingIntent);
Question: is calling setRepeating() idempotent i.e. do I need to explicitly cancel() any prior alarm or can I safely just call setRepeating() and be done with it?
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Aug 9, 2010
I just started using Tasker on my Droid X and have found it to be very useful. I have had a problem with a Profile that I built around Google Maps. After reading about a GPS bug on Droid X (I believe the same issue happens with WiFi, but it not relevant here) I created a profile that turns on GPS when Maps is started and turns off GPS on exit. In order to verify the on/off tasks are being doing at the correct times, I added a popup to the end of the on/off tasks. If this worked as I thought it would, I should see the popup happen after launching Maps and I should also see it when Maps closes: So after setting this profile up in Tasker and launching Maps, I see maps open and the GPS on popup appear, but after a few seconds, the GPS off popup appears. After a few seconds, the GPS on popup appears and the GPS off popup apear again. This repeats for as long as I have the Maps app open. Maybe this has something to do with how Google Maps launches/works/exits, but I'm at a loss here. Does anyone have any ideas why this is happening?
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Oct 6, 2010
I recently did the Orange update to 2.2 and today noticed that the LED isn't firing when i get a new alert. I've tried turning missed reminder off but that doesn't make a difference, though if i go in to missed reminder and do a 'test notification' the LED does come on. Has anyone else experienced this? This is quite annoying as I rely on the LED to let me know if i've got a new event.
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Jun 8, 2010
I have an application, which (for the sake of simplicity) has two types of activities - Overview and DetailView. The Overview activity shows a list of steps and allows the user to start a DetailView activity corresponding to the step chosen.
In the DetailView activity, the user can start another Overview, which shows different steps than the ones in the parent of the current DetailView.
In the Overview, DetailView is started by using startActivityForResult (). In the DetailView, when the user decides to start a second Overview, I call setResult () and finish () and then start the new Overview. In this scenario, onActivityResult () and finishFromChild () do not fire. Instead, they fire when the parent finishes (?).
Code from Overview:
CODE:....
Code from DetailView:
CODE:..........................
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Mar 10, 2013
I have a problem with a USB hosting program I have written for the Galaxy Tab 10.1. I am trying to communicate with a PIC microcontroller via USB and had the program working a month or so back. Attachment to the PIC was by using an intent in the manifest, as per the standard method. However, I then upgraded via Kies to Android 4.0.4 and since then have not been able to use the program.
at first I had no luck in even seeing the PIC but once I told the PIC to pretend it was a mass storage device that problem cleared up (the original version was configured as an HID). It seems that in 4.0.4 Samsung have reintroduced the "whitelist"
Now I have the issue that I can trigger my program on plugging in the PIC (which proves that the permission is working on attaching) but within the program the only intent that is seen is the MAIN one.I don't want to go away from a stock device, and I don't want to have to downgrade back to 4.0.3 which I had when the system was working.
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Sep 2, 2010
okay so i downloaded skype mobile and it download but got stuck on the installing screen so i turned the phone off and back on and now it just is stuck in this endless loop of turning off and on. i tried holding down the volume up key while pressing the end call button to do a reset and it just says "cache error". any ideas? maybe skype gave me a virus?
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