Android :: Concept For Detecting Changes Of An Opened File?
Sep 22, 2009
I wrote an application for video recording which stores the recording to a file. Currently I am looking for a way to implement some kind of "listener" to listen for file changes.
The concept I would like to implement is the following: Check the file on a set period of time (for example one second), extract changes (get the data that was written in the last period) and do something with these data.
I would be very thankful if anyone of you could give any suggestion or point to any useful resource that could help to solve the given problem.
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Apr 16, 2010
1. We know that we can use a concept "Java Package" but I just wanted to know that whether Android has provided a DLL concept where I can write my most of the functionality for reuse purpose.
2. Also there is doubt in mind: Can we use "Activity" for the purposes that DLL provides?
Is there any concept like DLL on Android? Can we develop a DLL for better modularization and other benefits on Android?
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Jun 22, 2010
I have 3 Google mail accounts and I transferred all of my phone contacts from my Blackberry to my EVO. I see many duplicate contacts for phone and e-mail on my phone but for some reason they don't sync back to gmail. I'd like to merge all of my contact data and then have it synced to either my main gmail account or to all 3 gmail accounts (if that's possible).
All of my accounts are set to sync on my phone but the phone contacts don't seem to be uploaded to my gmail account(s). I figured if I get all the data there I can use the "find duplicates" function in gmail and merge all of my contacts data under single names.
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Aug 11, 2010
Can any one tell me, is there any promo code concept in android for our apps like in the iPhone. If yes please provide me the necessary information how to do that?
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Aug 26, 2010
First and foremost, are there many android developers here? Is this a good place for Android related discussions?I seem to be missing a rather large concept of Android development. The gist is I am struggling understanding how to tie an application together. I'm not sure how to explain it, so I thought I would do my best with an example from the Android ApiDemo... assuming you are familiar with it.
Inside the com.example.android.apis.view namespace of the ApiDemo, there is a class called Animation3.java.Animation3 inherits the activity class and there is some code inside to display animation.I can't find a reference to the class (Animation3) anywhere in the demo code (except for its definition obviously). The only mention I found is in the manifest xml file. So how the heck does this activity get started? Don't we need to create an instance of the class somewhere and fire off a method to start it? I don't understand how to generate the code that ultimately glues this class to the rest of the application.Additionally, what about other classes like views or viewgroups? How do I generate code outside the class that initiates/starts/uses/calls (insert proper term) the class.I would appreciate any code examples as well as any concept explanation or reference documents. So far I've read pages and pages on activities and views but I'm really struggling how to tie things together.
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Oct 24, 2010
it has been booted on the incredible. This is just a proof of concept and a support thread, no a release. It reboots every 40 Seconds, touch is borked and screen tearing galore, but optical joystick does work (a bit) If anyone wants to help or show support, now is the place to do so. To do list: GET TOUCH TO WORK! Replace all Moto Drivers with Qualcomm/HTC. Get everything else to function
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May 12, 2014
I've came up with a concept of new type of "keyboard" for touchscreen devices (target: mobile phones), the tests went really great, and I am now patenting it.I'm not allowed to post links, please search "swipewheel" in youtube.
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Sep 25, 2010
In my android application I would like to get Time since when the app is opened. Initially what I tried was getting the time when the app is loaded from the server and then taking the difference with the current time from the device. But by doing that if the user changes the time then I will not be getting the actual time. Its not possible to hit the server again for the same. Is there any way to achieve this in android?
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Oct 15, 2010
I have an Android application which has four tabs (I use a main TabActivity with TabHost and TabSpecs).
In one of my sub activity (activity opened in a tab), i need to open a tab not by clicking on the tab title and i don't know how to do this.
For example, i have a button in my activity and when i click on it, it opens a different tab.
For the moment, it is what i do:
Intent intent = new Intent(myActivity.this, myTabActivity.class);
intent.putExtra("ComeFrom", true);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
Then in the TabActivity, if i get true reading the "ComeFrom" extra i open the wished tab but the problem is that it kills all the other activity. So, if someone knows a better (cleaner) way to do that trick.
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Aug 1, 2010
Is there a way to know which Intent Filter is responsible for launching an Activity which has two Intent Filters defined in AndroidManifest.xml? I want a slightly different set of logic, but not enough that should require a whole new Activity.
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Nov 11, 2009
i am attempting to hide a forcibly opened soft keyboard using // hide the soft keyboard View view = (View) findViewById(R.id.DebugText); InputMethodManager manager = (InputMethodManager) getSystemService (Context.INPUT _METHOD_SERVICE);IBinder binder = view.getApplicationWindowToken(); if (binder != null) {manager .hideSoft Input From Window(binder, 0); but it doesn't seem to be working - any ideas?
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Sep 6, 2010
I am wondering how one would create a dialog box that only pops up when the app is first opened. For example, I have an Android app on the market. When I update it, I would like to implement a box that pops up that displays what has been updated in the app and will not pop up again until the app is updated again.
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Dec 24, 2009
Visiting www.google.com on the Android browser (or even with an android spoofed user-agent), presents the option to "Share Location". When clicked, it uses the GPS/Cell phone towers to figure out the location. I tried the google.loader.clientLocation but that only works using the IP address. Is there a method to tap into the Android OS and access GPS data from a regular web application (and not an Android application) similar to the way Google does? [Perhaps Google uses the Google Gears app on Android to access this data.]
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Apr 16, 2010
I'm looking to get a home security system, you know, one that alarms when a door, window, etc is opened.
And so I was thinking, I bet there's one that can tie into an app that lets me check my home remotely.
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Mar 1, 2013
If AndChat can be opened via opening a URL? I'm setting up push notifications for IRC and I want to be able to click the notification and open AndChat, but I don't know what URLs AndChat handles, or if it does at all.
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Jul 7, 2010
I have a single bitmap with several individual pictures in (each one is an option) and I would like to detect when the user touches these pictures. I am using the event.getX and event.getY to detect where is pressed, I know the top left X Y and bottom right location of each of the pictures. What is the best way of detecting which one is pressed? (i.e. tieing up the event press and which picture has been pressed?
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Jun 3, 2009
There are return values and such that allow handling if SensorManager sensors and location providers aren't available, but what about the camera and microphone for audio recording? Is there a way to detect those in software, or are we just to assume that every device running Android (even the rumored set-top box) is going to have a camera and microphone and try to use them?
In the case of the camera, it would seem that Camera.open() returning null would indicate the lack of hardware. I don't know if that assumption is valid or not, though, considering it isn't documented as such.
In the case of the microphone, though, I don't see anything that could possibly be checked. The same goes for the camera if you're wanting to do video with the MediaRecorder class.
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Sep 2, 2009
I'm trying to figure out how my Activity can detect if it was launched by an alias as opposed to by the main icon.
Is it possible to do this?
CODE:............
alias1 and alias2 appear as expected in the Launcher, but I don't see any way in multipleEntryPointTestActivity to tell which of these icons launched the application.
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Oct 31, 2010
I have hooked in a ScaleGestureDetector to an OnTouchListener as instructed in Android documentation. For some reason the ScaleGestureDetector does not always detect end of a pinch gesture. This happens mostly when pinching fast from large to small.
The effect is that after I have released both fingers the detector does not fire the gesture end event. If I touch the screen with one afterwards it still thinks I'm continuing the scale gesture (keeps firing onScale events). I have to do another gesture to get the detector to fire end event.
I have added logs to the OnTouchListener and when the scale gesture gets stuck I still get motion events normally when using one finger and event.getPointerCount() is 1.
I have made sure that I don't have any other listeners intervening. View that has the onTouchListener is not the only view on screen but this effect happens also when I'm very careful to begin and end the gesture inside this one view.
Is there any way to improve the end detection?
Or if there a way for me to manually set the ScaleGestureDetector to fire onScaleEnd and change scaleGestureDetector.isInProgress() to false?
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Nov 26, 2009
Is there a way to detect whether a image was pulled from the folder res/drawable or res/drawable-hdpi?I am trying to save space and have a program that is using some hdpi bitmaps and some mdpi bitmaps. When an image is placed in drawable-hdpi it automatically replaces the mdpi version. I need to know when this happens beacuseI am using bitamp.resize() to fix the image sizes.The problem is that the getDensity() method (in the if statment after the && ) returns the screen density and I need the original bitmap density. This allays matched the screenDPI and returns false. I have a lot of artwork and do not want to duplicate everything for every size screen. I am trying to just create hdpi bitmaps for the ones that don't look good when re-sized.
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Oct 20, 2010
I'm trying to find out if the user is still within range of his own area code. Detecting roaming doesn't solve the problem since the user may still be in the same network with a different area code. I thought about getting the user's coarse location to find the city he's is in but this approach needs Internet access and might not be fast enough (this is done as the user is making a call and needs to finish before the call is made). Is there any way I can do this with just the info from the cellular network?
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Jun 6, 2009
I am writing a Security-oriented application for Android that is supposed to detect abuse of SMS sending.
In my work I encountered the problem of not being able to detect outgoing SMSs sent not through the use of conventional applications, i.e. merely by using SMS Manager's sendTextSMS method.
The conventional SMS applications add the contents of the sent SMS to the SMS Provider after they send it but I can assume that malicious applications will not do that... and neither will they provide the pending intents to the sendTextSMS method to be broadcast upon sending/ delivery.
My question is, is there any way I can detect the sending of the SMS without relying on the SMS provider?
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Oct 16, 2010
As far as i know there is no way to detect when an outgoing call is accepted at public API level. I can detect incoming calls (with PhoneStateListener), outgoing calls by NEW_OUTGOING_CALL intent, but i can not find a way to distinguish the dialing and connected phone states.
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Oct 11, 2009
I have an SQL which uses something like "LIMIT 100". If the cursor returns 100 rows, is there an efficient way of distinguishing between whether the LIMIT caused it or not? I suppose I could just call LIMIT 101 instead but I was hoping for a nicer way.
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Aug 27, 2010
I was trying to come up with an app that works on the call that a user gets on his phone. For this I wanted to know whether it is possible for me to get intimated when a call comes to the phone and is it possible to intercept the same.I tried to go through quite a few forums but could not get conclusive evidence on how to achieve this.Does anyone have an idea whether this is feasible and if so then how?
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Feb 18, 2010
I am testing an android device with eclair using the 2.1 CTS version. When CTS completes a set of tests and restarts the device a "device disconnected" messages appears on the CTS console. However after the device completes the restart to the android home screen CTS does not detect that the device is back online. I have to physically disconnect the USB cable and re-connect it. Do you think this is a device side issue or a USB driver issue on the Ubuntu machine (intrepid) where I am running the CTS?
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May 14, 2010
Lately I've been noticing that some apps are running in the background when I've not opened them. Footprints, Voice dialer, Messages (I use handcent), Peep and Music are the ones I've noticed and (coincidentally) are all apps I don't use. I only notice them when using Advanced Task Killer and have to kill them. It's a new issue so is it possible another app I downloaded recently is to blame? Am i maybe just insane?
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May 15, 2010
This is my first ever smart phone and android phone so excuse me if this is a silly question! I've noticed that after closing the web browser (well hitting the home key as there is no obvious exit option) and then re-opening it, the browser shows the page I was last at which makes me wonder if it's still running in the background and consuming battery (same with the PDF viewer). Am I right in thinking this and if so how do I close it?
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Apr 7, 2010
I've had the hero for about a month now, great phone but today some issues arose. When I launch the browser, my home page is google. However it google now loads in Spanish and none of the links will work (thee get highlighted but doesn't take me any where). The same is true for any of my bookmarks, the site loads but is missing images etc., seems to be all text etc., and none of the links work. I've already cleared everything, cache, history passwords etc., and even tried inputting new sites and tried loading them, same scenario, site loads but no images, format is different and links don't work. All other apps work, gmail, calendar etc.
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May 26, 2010
I swype a word, like "at", but I previously tapped out a word like" a1", it brings up a huge dialog help box telling me my new word is used over "at" , and describes how to delete a1, so annoying, how can I rid my dinc of these warnings.
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