1. what is the getKeyDownTime() method? What does its return value mean logically? 2. what is the getKeyEventTime() method? What does its return value mean logiccaly? 3. I want to measure the time a key was depressed for. Eg: Key A was pressed for 60 ms. which of the above methods would be useful?
View 7 Replies
While doing debugging with Eclipse I noted that the debugger highlights the wrong line as "next line to execute" for methods with multiple return points. It fools the developer that the last line of the method is executed, where in fact it is not.Does anyone know if this is some kind of known issue? My colleagues have also experienced this but we have never seen it when doing on- device-debugging on e.g. the Sony Ericsson SDK.I couldn't find anything at http://code.google.com/p/android/issues/list There was a similar post in android-beginners 2007-11-25. No replies, though. http://groups.google.com/group/android-beginners/browse_thread/thread.
View 2 Replies View RelatedI'm looking into writing simple graphics code in Android and I've noticed some synchronized() blocks. What is the reasoning behind this and how do I know when I should be "synchronizing" my code?
View 1 Replies View RelatedCan someone point me to documentation with the definitions / meanings (i.e., what action is expected to be performed) for the KeyEvents? Aside from the obviouse KEYCODE_A to KEYCODE_Z, etc. there are some that I don't understand and I cannot find any mention anywhere on the web ?! Specifically the following, but generally all of them: KEYCODE_EXPLORER KEYCODE_ENVELOPE. Also, is there a meta-key to dismiss the keyboard via an injected KeyEvent?
View 2 Replies View Relatedmy goal is to target with a keyevent a specific application running either in foreground or background from a background service. I tried many solutions, but have not yet managed to do it. The few solutions tried (all from a background running service): With a broadcast, I tried to target the first application (for example the phone app) that would manage the key event
KeyEvent lKey1Up = new KeyEvent(KeyEvent.ACTION_UP,KeyEvent.KEYCODE_ENDCALL);
KeyEvent lKey1Dwn = new KeyEvent(KeyEvent.ACTION_DOWN,KeyEvent.KEYCODE_ENDCALL);
Intent lKey1UpIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
Intent lKey1DwnIntent = new Intent(Intent.ACTION_MEDIA_BUTTON);
lKey1UpIntent.putExtra(Intent.EXTRA_KEY_EVENT, lKey1Up);
lKey1DwnIntent.putExtra(Intent.EXTRA_KEY_EVENT, lKey1Dwn );
sendOrderedBroadcast(lKey1UpIntent, null);
sendOrderedBroadcast(lKey1DwnIntent, null);
=> Nothing happens with my foreground phone app when the broadcast is performed while I am in a phone call state (OFFHOOK). Indeed, I was nearly sure this would not work since I have no way to specificely target the phone app.............
When I Override onKeyDown in a MapActivity I have a problem with KeyEvent.KEYCODE_PLUS. When running my app "+" just don't work. The same code works for any key but KeyEvent.KEYCODE_PLUS. In log I get W/KeyCharacterMap( 725): No keyboard fo id 0 W/KeyCharacterMap( 725): Using default keymap: /system/usr/keychars/qwerty.kcm.bin. I am working with a Hp Laptop with US qwerty keyboard and Kubuntu 8.04.
View 4 Replies View Relatedhow to reject an incoming call. At first, i wanna find some method already exists that can directly reject a phone call, but unluckily i failed. now i come up with an idea ,to simulate a ENDCALL KeyEvent. here is one solution to achieve it
IWindowManager.injectKeyEvent(...);
It may work in earlier version sdk... I didn't find any method like that in latest version sdk~ is there any method exists to simulate a KeyEvent ? or how could i reject an incoming phone call?
I've got something simple where I want to raise an AlertDialog after catching this keypress:
CODE:............................
The interesting thing here is that when you hit the back button, you *do* see the AlertDialog for a split second, but then you're back at the previous screen you were at. Almost as if the system is hellbent on sending the user back to the previous screen, regardless of what the developer has constructed around this event. I'm using 1.5r2 here.
I'm running into some issues with input events and garbage collection, or more precisely object allocation. I am creating a game and have pretty much got my head around the OpenGL environment. I've digested all the relevant material I could find regarding performance, memory allocation etc (and watched the excellent presentation by Chris Pruett - http://code.google.com/events/io/2009/sessions/WritingRealTimeGamesAn...). I've pretty much eliminated any object allocations after initial setup from my game (which is still in its infancy), but I'm still getting a bunch of GC calls, like this:...........................
View 6 Replies View RelatedIf I need to return my phone before the 30 days are up and they are out of stock, will they still honor the return policy and just call you when they have one available or will you have to stick with the phone that you have?
View 5 Replies View RelatedI am writing a program which captures the keys pressed by user in android and displays it in Ubuntu. According to what I read, Android's input event device is structured around an interrupt or polling routine that captures the device-specific scancode and converts it to a standard form acceptable to Linux (as defined in input.h) before passing it to the kernel with input_event(). There are the steps which describe the translation from keyboard input to application action: 1. Window manager reads key event from Linux keyboard driver. 2. Window manager maps scancode to keycode. 3. Window manager sends both the scancode and the keycode to the application...................
View 14 Replies View RelatedI have written a number of applications for blackberry and am just starting in Android. It seems to me that android has a lot more built in functions. I am starting by recreating some of my BB apps on Android and on one I take a few xml sites and parse them out. On blackberry I implemented this by creating a class that extended a thread. I would construct a new instance of this class with the parameters of my http request and it would call a function back in my main class, sending it the results. I am tempted to reuse my code, but am curious if android has something better built in. I have been looking at the handler class as well as possible using a service.
Bascially, I would like to start a new thread that will return a document of a specific url.
I have two applications A and B (in different packages,but it doesn't matter).Application B is an sms application that i have made and contains one activity.This activity has a method called sendSMS(String number,String text).I want to call this method from application A and send an SMS without opening the activity(the GUI) of application B but just send an SMS in the background by calling just the method of the activity.Any ideas?
View 10 Replies View RelatedOn methods like these kind, onItemClick(AdapterView parent, View view, int position, long id), what's the difference between position and id.
View 2 Replies View RelatedSo I'm writing an Android app which uses a large c++ library. I have everything working so that the java app can call the c++ delegation methods, but I'm finding myself wishing I could log messages from c++ to the Android log. This is easy from java, but I'm at a loss as to how to call a java method from c++. My searches found methods for opening a jvm from c++, which is not at all what I want to do. Ideally, I'd like to pass a log method pointer to c++, which could then be used whenever I wanted. Of course, java doesn't support method pointers.
View 2 Replies View RelatedI have a MapView where I would like to be able to tap the map to create a new item at that location if there is no item there, or display the info about the item if there is.
I tried overriding both the onTap(int) and onTap(GeoPoint, MapView) methods but apparently if the second method is overridden the first never gets called (commenting one or the other lets each one work as I expected).
I thought about just checking if an item was at the location, but there doesn't seem to be any handy methods available to do that (other than iterating through the list of items and checking each manually).
I know rule #1 of optimization is: don't do it! But I figured this was an easy question, and if I start using the faster method now I can save a lot of cpu time when I'm finished.Now, the answer to my question may be "there's no difference" and that's fine with me. I just want to know.
View 4 Replies View RelatedJust out of curiosity how many people use Swype vs. Voice to Text vs. other means for text input. If I forgot a method just say it out loud.
View 4 Replies View Relatedis there a methods to keep mobile phone off using code, i have no idea about this,and hope someone give me some advice,or example , code,api
View 1 Replies View RelatedI have Activity A and Activity B. I want to access a method in Activity A from Activity B. This is my method:
Activity A extends activity{
public void save(){
} }
Need help closing/accessing my views in a simple app (included an img of my program layout) but I might have been too confusing. Basically, I have an app that has a main menu where the user can click a button to open a camera. The user then snaps a photo and it is displayed on a page. The user will then click another button that detects faces. If faces are detected, the user is sent to a final page that shows the cropped face, etc. I give the user the ability to return to the main menu or snap a new photo.
Let's say a new photo is snapped and the user does it a few more times. Now I have multiple saved instances of old snapped photos (presented on the layout). How do I kill the previous instance (the layout from before he decided to snap a new photo)? So when I try to close the app it doesn't go back to the previous instance (displayed layout of said snapped photo). I am so confused on this one thing.
I have an Java class with a static final method getAll:
CODE:..............
Now I want to hand in null as a value for the where statemant so that it will just be ignored later on in the code. Anyway in the testcase for this method I have: Vector<Category> categories = Category.getAll(context, null);
Which then in turn gives me a NoSuchMethodError. I don't know exactly why it does that. The only thing I could imagine is that the null I hand in would not match the signature of the above method. But how can I overcome this? I already thought of overloading. But this would just end in rewriting most of the code. At least when I do it, how I think.
This is the stack trace I get:
CODE:.......................
Is it possible to call methods of a Activity from service. I am running a thread from a service and i listening to some external event from that thread. I am not able to call methods from that thread. Is there any way to call methods from a thread.
View 3 Replies View RelatedI am curious whether the AIDL only serves for inter-process communication between several Android apps on the same device, or AIDL provides much wider functionality. Let's say I have a Java application running on some server, is it possible to remotely call methods on that server through AIDL from an Android phone?If yes, do I need some extra libraries on the server-side Java application?
View 1 Replies View RelatedI want see the state of my activity (Pause Stop Resume etc etc) without override each methods like this: Code...
View 3 Replies View RelatedI want to create one method and call the created Thread inside that method in my Android Application, I am new to Java as I had told before. Can anybody giive me an example of how should I create a method and call a Thread inside that method!
View 2 Replies View RelatedI've a couple functions that basically parse XML but it's not XML it is parsing something similar. I use them in PHP to break apart large strings so I converted them to Java for this, but when I use them they force close. I use this code to call them....
CODE:..........
That's the gist of it. I know the string "str" is good, checked it, but if I run these lines I get a force close, if I comment them out I do not. The methods are below. See anything wrong?
CODE:...................
I'm trying to use the Point class from android.graphics, but it appears that all the methods are stubs.
For example, the line Point p = new Point(1, 1); causes java.lang.RuntimeException: Stub!.
If I look at the bytecode for Point, I see a bunch of stubbed methods, e.g:
CODE:.......................
What's the deal here? Surely they didn't ship a class that's 100% stubs.
The Canvas class does not take Shape as a parameter for any of its methods. There is no drawShape or clipShape, etc... So, I need to use Path instead. Does android sdk expose any way to convert Shape to Path or Path to shape? I haven't been able to find relationship any between the 2 classes...?
View 1 Replies View RelatedI made two applications. One for an activity receiving user input, the other for a background service. In the service package, I create two files (startSensorBroadReceiver.java, remoteService.java). StartSensorBroadReceiver will receiver an intent from activity application and call method inside of the service. There is no erron in the codes but I can not excute what is want. I meet a message like this "The application ServiceExample has stopped unexpectedly. Please try again." could you let me know. what is wrong? and how I can call service methods from broadcastReceiver?
View 5 Replies View Related