Android :: Possible To Detect Touch Events In Droid
Jul 19, 2010
New to android so please bare with me here
Is it possible to detect all touch events in an Activity and capture it and then in return pass that pass event to another View. For example:
Button 1 and Button 2. When Button 1 is pressed I want to capture that touch/click event and automatically pass that touch event to Button 2, basically with one touch/press you get the click generated and that same click is passed on to the second button automatically.
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Apr 13, 2010
I would like to handle pinch events in my Android application to zoom in and out.
I believe Android 2.0 has multi-touch functionality, and heard that Android 1.6 might or might not support it depending of the device.
What's the best way to detect pinch events, while degrading gracefully for devices that don't support it? I'm targeting Android 1.5 upwards.
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Jun 29, 2010
Right now all I am trying to do is detect when the screen is pressed and then display a log message to confirm it happened. My code so far is modified off of the CameraPreview sample code (it will eventually take a picture) so the bulk of the code is in a class that extends SurfaceView. API for the example code from the SDK is 7.
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Oct 15, 2010
I have designed a 3D model in .obj format and imported using min3d framework. Its a cube with different colors. I want to give a Toast with a message for a particular color when the side of that particular color is touched. How do I do this in android 1.6 ?
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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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Dec 26, 2009
Do you know about how to detect two touches/taps on a ListView?
I am trying to have the following method called when double touched code...
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May 22, 2010
How to detect application launch and shutdown events?
I have used BroadcastReceiver for detecting incoming message, outgoing call and so on. but now I want to use Application Launch and its Shut Down event from my application..
Kindly waiting for any suggestion/link/source code....
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Oct 12, 2010
I would like to be able to detect when a user types a key in the Search Dialog. I plan on using this to hook in to custom suggestion functionality.
Note: The built-in Search Manager custom suggestions functionality won't work for me because I need to customize the layout of the suggestions.
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May 31, 2009
I am writing a game using OPENGL, there are several 3D objects in my surface view. My question is: Should each 3D object implement view in order to get touch events? Or there is other way to do this?
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Apr 27, 2009
I'm developing a game for Android. It's got a lot going on but is running reasonably smoothly. That is, of course, until the user touches the screen.While they're touching it, onTouchEvent is called (with action = ACTION_MOVE, x = 0 and y = 0) roughly once every ten milliseconds at what appears to be a fairly high priority, as it absolutely obliterates the framerate. As soon as the touch ends the framerate returns to its nice state.Has anyone encountered this? Is there a way to reduce the rate at which ACTION_MOVE events are generated, or to ensure that they're only generated when there is actual movement, or use a polling method that just gets the current location of the touch? Or even just a way to disable it entirely?
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Feb 26, 2010
I'm writing an Android game that needs to receive touch events. My problem is that, whenever the user drags their finger along the screen, so many touch events get sent to the touch event handler (which I think runs as a separate thread) that my frame rate plummets! What's the best way I can limit the number of touch events that are handled per second? For example, if my game runs at 60 fps, I really shouldn't need more than 1 touch event being handled every second. Can I do this is a way that doesn't lose any information (i.e. important information about where on the screen the user touched last)?
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Sep 8, 2010
I start monkey like this:
monkey -p <MY PACKAGE> --port 4321
(I have already done a tcp port forwarding).
I then use PuTTY to telnet to 127.0.0.1:4321
I can issue a command like tap 100 100 I get a response OK but I see nothing happening on the UI. I have placed a button at that location but I does not receive the touch event.
When I run monkey like this
monkey -p <MY PACKAGE> --pct-touch 100 -v 10
I see touch events being dispatched to the screen.
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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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Aug 30, 2010
I want to figure out how to detect that the user has been doing a long touch press on the screen? Most of the solutions that I see assume that the DOWN + UP sequence of events.
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Oct 20, 2010
In Javascript/jQuery, how can I detect if the client device has a mouse?
I've got a site that slides up a little info panel when the user hovers their mouse over an item. I'm using jQuery.hoverIntent to detect the hover, but this obviously doesn't work on touchscreen devices like iPhone/iPad/Android. So on those devices I'd like to revert to tap to show the info panel.
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Jul 21, 2010
Wondering here if there is a way I could trigger an event, so that any library listening for these events (e.g. jQTouch, Sencha touch, iUI, ... ).
If I could extend or use jQuery for such task e.g. $(...).trigger('event') that would be great to know.
Usage example:
I need to debug a few web apps by simulating multi touch with my mouse. This seems a little complicated, so if I could trigger the multi-touch events using Javascript I could therefore test the app more efficiently.
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Sep 24, 2010
Purpose of the app:
A simple app that draws a circle for every touch recognised on the screen and follows the touch events. On a 'high pressure reading' getPressure (int pointerIndex) the colour of the circle will change and the radius will increase. Additionally the touch ID with getPointerId (int pointerIndex), x- and y-coordinates and pressure are shown next to the finger touch.
Following a code snipplet of the important part (please forgive me it is not the nicest code ;) I know)
CODE:.............
The problem:
A HTC Desire running Android 2.1 is the test platform. The app works fine and tracks two finger without a problem. But it seems that the two touch points interfere with each other when they get t0o close -- it looks like they circles 'snap'to a shared x and y axle. Sometimes they even swap the input coordinates of the other touch event. Another problem is that even though getPressure (int pointerIndex) refers to an PointerID both touch event have the same pressure reading.
As this is all a bit abstract, find a video here: http://www.youtube.com/watch?v=bFxjFexrclU
My question:
Is my code just simply wrong? Does Android 2.1 not handle the touch events well enough get things mixed up?Is this a hardware problem and has nothing to do with 1) and 2)?
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Oct 4, 2010
How do you disable all touch events in an Android WebView (or scrolling in particular)? I would like the activity to handle all touch events.
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Aug 10, 2009
Just wondering if there is an easier way to simply stop ScrollView from being scrolled via touch inputs? I will programmatically get the ScrollView to scroll to top or bottom.
As a last resort, I guess I will have to inherit from ScrollView and capture all the ontouch events. But wondering if there is an easier way before I take this approach?
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Mar 5, 2009
I have a list activity that creates a header row above the data rows from the adapter. I want to receive click events when the user selects the header or a data row (but my data rows have check boxes in them, so this part is tricky). When I use the touch screen, I get this expected behavior:
1. Tapping on any row causes a click event and a dialog appears.
2. Long-pressing on a data row causes a context menu to appear.
3. Long-pressing on the header row does *not* show the context menu.
However, when I use the arrow keys (emulator) or trackball (G1), I get this unexpected behavior:
1. Selecting any row fails to cause any click events, even though the row's appearance changes like it's being clicked.
2. Long-pressing on the header row *does* show the context menu, which I don't want.
3. Occasionally, it doesn't focus the correct row when I move up or down (e.g. it skips from the header to the last data row).
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Jul 16, 2010
I'm developing an HTML/Javascript mobile web application using Dashcode. Normally I wouldn't use such WYSIWYG stuff, but I've found it a very rapid development process.
Unfortunately it seems like I can't get it to run on Android's browser currently. The main display loads and all the correct data is pulled from web services, but you cannot press on anything to activate it.
I suspect that the android browser is sending different javascript events, which the Dashcode objects are not configured to pick up.
In addition, the adb logcat debugger refuses to output any log messages from the browser on the emulator, and as such I'm having a very hard time sorting this out.
What events I need to be watching for, so I can iterate over all the touch handlers and duplicate them for the android events, or offer help in any other way on this situation?
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Jan 20, 2010
I have an activity defined as:
CODE:...................
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Sep 3, 2010
I want to get information of how to detect device support multi touch without OnTouchListener triggers event.
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Dec 3, 2012
I was using my phone (droid 3) and the app I was using force closed, my phone lagged for a few seconds and then I just put it down so it could catch up. While waiting the screen timed out and when I went to use it I could not unlock it. I can press the button on top and it will turn the screen on or off, and if I hold it it will bring up the power off menu. I tried to call it, and it went through. I got the normal screen to answer it, but I could not answer it. After I hung up I got the notification for a missed call. Everything seems to be working, my screen just does not respond to a touch. What should I do?
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Sep 8, 2010
I have a custom Android view which overrides onTouchEvent(MotionEvent) to handle horizontal scrolling of content within the view. However, when the ScrollView in which this is contained scrolls vertically, the custom view stops receiving touch events. Ideally what I want is for the custom view to continue receiving events so it can handle its own horizontal scrolling, while the containing view hierarchy deals with vertical scrolling.
Is there any way to continue receiving those motion events on scroll? If not, is there any other way to get the touch events I need?
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Jul 4, 2012
My phones' display has been broken and I would like to know if there is a pc software that allows me to simulate touch events via adb bridge.
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Mar 17, 2010
On iPhone, iPod touch and (presumably) iPad, Apple has multi-touch event handling available via JavaScript in Mobile Safari. I know the Nexus One recently added multi-touch support via an update, and I believe webOS is also multi-touch enabled. Do Android 2.1 and/or webOS have access to multi-touch in the browser, or is this currently exclusive to Apple devices?
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Aug 6, 2010
I would like to get access to the area covered by a finger for each touch event on an Android.Every touch event will result in a coordinate pair X and Y independent of how big the finger and consequently the touch area is that triggered the event. I was wondering if there is a way to get the area data which triggered the touch event e.g. size or coordinates NOT
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Nov 18, 2010
Why does the video in the attached code is not running (get a message from the emulator that the application cannot run the video).Can anyone please help me to understand how should I implement the onTouchEvent in order to capture a touch on the screen (don't care where on the screen) while a video is running.
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Jul 24, 2009
I want to listen for the touch events from Lock Screen and Home Screen, is there any way i can tap those to my applications.
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