I wanna write an app to enable and disable the Bluetooth device synchronized. Referring the Android source code, I registered following receiver to receive the bluetooth state change event:
CODE:............
But it doesn't work. Although the BT status has been changed (the icon of BT has been appeared or disappeared), the receiver could not receive nothing.
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I'm currently working on a project which requires the detection of user state (walking, running, driving), I've looked through some of the existing solutions on Android platform such as pedometer or calculating velocity with given acceleration, but I'm still unsure how I can approach this problem. Is there a way to accomplish this without much of data mining/signal processing? How can I solve this with simple logic? Or is this better solved with gps instead of accelerometer? The program will only need to return simple user-state descriptions like walking.
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View 2 Replies View RelatedI can use this code make outgoing call.
Intent dial = new Intent(Intent.ACTION_CALL); dial.setData(Uri.parse("tel:5556") );
context.startActivity(dial);
But how to detect call pick up the call or refuses to answer?
I tried PhoneStateListener but not working.
How to detect the bluetooths device found?
View 2 Replies View RelatedI'm new to Bluetooth programming and I was wondering if I had a Bluetooth headset that was paired to an Android phone. What's the best way to detect that a button was pressed? Are there modifiers to tell which kind of button it was (e.g. volume up/down, main button) or what kind of press it was(regular, long press etc).
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im currently looking for the way that my app knows when the phone has being paired and connected to a bluetooth headset device.
I read something about this intent, but not on the Reference documentation of http://developer.android.com
android.bluetooth.a2dp.intent.action.SINK_STATE_CHANGED
Is this actually working, is it officially supported.
I mean, can we just register a broadcastreceiver to handle this intent , check for the EXTRA_STATE string extra to see if it equals STATE_CONNECTED and be sure that the phone is now connected with a bluetooth headset device ?
What about this BluetoothA2dpService class? There is no official documentation about this, everything i found i from code snippets of the android OS source code.
I didn't find an API to detect if a Bluetooth A2DP is connected. Can somebody point me out how to check? It looks like if I route audio to Bluetooth A2DP without check, the sound will be routed anyway, and the speaker is turned off.
View 2 Replies View RelatedAm I right if I say that, there is no broadcast action currently for the SIM card state changes?
View 2 Replies View RelatedI was looking at the way Android handles orientation change for my application (I discovered that it restarts the mainactivity on orientation change :| ). I've seen that you can ovveride the method protected void onSaveInstanceState(Bundle outState)to save stuff, then have the in onStart. The problem is that I've my view with custom objects and a listview using a custom adapter... Everything is in a ArrayList of these objects, but I've noticed that you can't put arbitrary objects in the bundle! So how do I save the state?
View 2 Replies View RelatedI am able to display multiple overlayItems on Googlemap, now I want to change icon of any specific overlayItem (to show it is currently selected event). I want to do it through navigation buttons (next, previous) as on Google maps.
I am using StateListDrawable to display icons for OverlayItems. code...
Now my question is how do I change the state of any overlayItem/Icon on map when user click on one of navigation keys?
I m currently working on landscape mode for android app in which i want to know how to maintain the state of the activity and views displayed on orientation change i.e from portrait mode to landscape mode ?
View 3 Replies View RelatedI am using the Android SDK icon-button for refresh (ic_menu_refresh) in a widget and I need to change the selection state when it is pressed. How is this done? Do I define an XML for the button?
View 1 Replies View RelatedI want to send an intent to my service everytime the state of Wifi connectivity changes. So when I currently use a broadcast receiver to listen for the state changes in Wifi, so when this recieves an intent I want to be able to send this info on to my service. Is this possible and if so the correct way to do it?
View 2 Replies View RelatedI have a main activity class that launches a couple of my subordinate activities from a tabHost.
Periodically (actually when I receive an incoming message on a socket), I want to inform the subordinate activities that application state has changed so that they can refresh their views.
In Swing I could wire this together using something like a PropertyChangeListener. As far as I can see, the Android design philosophy requires creating an Intent and broadcasting to (as far as I can tell all) other activities that are running.
This strikes me as overkill considering that I'm only trying to notify my own views of a model change. Am I missing something?
I have a custom View, what is the proper way of saving / restoring it's state after orientation change. I know I should implement onSaveStateInstatnce() and onRestoreInstanceState() methods, but how exactly (with which argumets) and when I should call them?
View 4 Replies View RelatedMy Application need to perform a database search when the user change the text in an EditText view. I need a method like onChange to allow me to know when the text in the EditText changed. How can I detect a change in the EditText view?
View 2 Replies View RelatedI am writing a home screen widget and want to update (modify) the home screen widget when the device orientation changes from portrait to landscape or the other way. How can I make it? Currently, I tried to register to CONFIGURATION_CHANGED action like the code below ...
View 3 Replies View Relatedchange the charging state from usb charging to ac charger without using ac charger.I mean how to scam my tablet to think that is charged with ac charger when im charging with usb from pc.
HTC Flyer P510e
I want to fetch the IMSI number so that I could keep it in memory and detect whenever SIM card changes. Is it actually possible? Is there anyone who can guide me a bit?
View 4 Replies View RelatedI have a compound UI component built up from a ViewGroup containing a number of TextView, ImageView etc. components. Many of these have StateListDrawables as their images/backgrounds. Is there any way of making them select from this drawable based on the state of the parent ViewGroup rather than the component itself? Ideally I want to be able to change the visual state of all children of the ViewGroup (text colour, image etc) based on the state of the ViewGroup, preferably without having to hook up complex logical code. This seems like a fairly common sort of requirement, so I was hoping it would be straightforward in Android - am I going to be disappointed?
View 1 Replies View RelatedI'm a little confused by what I'm seeing with regards to phone state transitions via the PhoneStateListener. When I receive a call, this is what happens: (call comes in) RINGING -> IDLE (I pick up) OFFHOOK (I hang up) IDLE It's that first transition from RINGING to IDLE without any interaction from me (not ending the call, not answering the call) that confuses me. Do I really have to implement an idle counter to know that an incoming call has really ended? Seems like the reported phone state represents some sort of phone state that isn't the obvious one.Is this a bug or am I just not in tune with the paradigm here?
View 2 Replies View RelatedI have created one custom view that contains the horizontalscrollview. Now when i changes the orientation its scroll state change to 0 every time. I got the previous scroll state by using onSaveInstanceState(Bundle savedInstanceState) and onRestoreInstanceState(Bundle savedInstanceState) . in onRestoreInstanceState i am using following method to get reposition the scroll, hoz_scroll.scrollTo(hoz_x_pos, hoz_scroll.getScrollY());
View 2 Replies View RelatedI have a weird issue, I have a Bluetooth speaker that I used for music on my Blackberry Storm, the storm automatically recognized that the speaker was a speaker, but the droid recognizes it as headphones, which is an issue, because the speakers are a2dp, and it's using the headset profile, which makes the sound quality SUCK!
Anyone have any idea how I can change it? I've tried unpairing and repairing it like 3 times now...
I am able to upgrade now and im thinking about jumping ship to Android. I currently have a Blackberry Storm2, i absolutely love the S2 but unfortunately the OS is so far behind everything else on the market and its sooo buggy! A while back i did have a HTC magic but i hated it as there was so much missing from it as in features/specs. I Have a few questions about the Desire if someone wouldn't mind trying to answer (most are biased from using the magic) 1) Do you get push email (I use gmail) 2) are you able to bluetooth pictures etc between phones? 3) are there any niggles about the phone or anything missing from it as in features? 4) Are you able to change ringtone/SMS/MMS/Email/Cnectd/Messenger tones to any MP3 you want? Is there any previous Storm2 or other blackberry users which have jumped to the Desire? If so do you miss anything/how are you finding it.
View 26 Replies View RelatedIs there anyway off changing your scene to say 'car' and it turning on GPS, Bluetooth and then going back to a scene called home and it turns them off and turns wifi on (I've tried that but it doesn't seem to work) or an app that can do this (with out GPS enabled) for me.
I'm on Android v1.5 default ROM
I have a BlueAnt T1 headset that I use with my Droid 2. When you turn on the headset it says "Powering Up" then "your phone is connected" followed by a child's voice that says "Droid 2." For some reason, that kid's voice is getting on my nerves. Is there a way to change (or remove) it?
View 3 Replies View Relatedso ive been playing alot of emus on my phone now and heard about the wiimote app and went to try it out but its not finding my blue tooth is there a fix to this... also is it possible to change my bt address to 30:30:30:30:30:30 so i can sync with pairing code 000000.
View 2 Replies View RelatedMy code is based on the BluetoothChat sample from the API. I connect to another device just fine and I can read and write to the connection no problem. But then if I turn the device the orientation of the UI changes automatically. After this, if I try to write to the Bluetooth connection, my application crashes!
It seems weird that the orientation of the screen somehow affects the Bluetooth. I am new to Android, and I am not yet sure about stuff like when I should be saving and reloading the application's state. Is this one of those times? Does changing the orientation of the screen somehow reset the application's state?!