Android :: Touch Mode Catch Scrolling Direction / Left To Right
Oct 20, 2010
I want to ask that is that possible do in android catch the in the touch mode catch the scrolling direction ? When user touch on the screen left to right, can I catch the change ? If it is possible which listener can ı use ?
I found some of the methods and listeners but I 'm not sure that therse are represent my requirement . http://developer.android.com/reference/android/text/method/Touch.html
Public Methods static int getInitialScrollX(TextView widget, Spannable buffer) static int getInitialScrollY(TextView widget, Spannable buffer)
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Oct 20, 2010
I want to ask that is that possible do in android catch the in the touch mode catch the scrolling direction ? When user touch on the screen left to right, can I catch the change ?
If it is possible which listener can ı use ?
I found some of the methods and listeners but I 'm not sure that therse are represent my requirement .
http://developer.android.com/reference/android/text/method/Touch.html
Public Methods
static int getInitialScrollX(TextView widget, Spannable buffer)
static int getInitialScrollY(TextView widget, Spannable buffer)
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Dec 7, 2009
Scrolling on an Android phone makes sense because it's like you're physically sliding the page upwards. However, now that I'm used to doing that, when I get on my laptop and start to scroll with my touchpad, sometimes I find myself scrolling the wrong direction. On a touchpad you drag downwards to go down on the page, or to slide the page upwards. So it's backwards from the motion you would make on your phone.
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Jul 8, 2010
Is there an easy to know the direction of scroll (up or down for a vertical list) and the scroll velocity for ListView's?
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Nov 9, 2010
I'm making an Javascript web app and I can't for the life of me get the touchstart event to fire. I get the touchmove and touchend events no problem. This is a problem because as I see it the best way to distinguish between a tap and a scrolling motion is to zero a counter on the touchstart event, update it at touchmove and then compare it at touchend. I'm doing this so I can do some action at the end of tap but not a scroll. For instance, it would be very confusing if a page opened for an item in a listed after you finished scrolling down that list, but it would be nice to be able to tap on an item to open its page.
This is what I have..
I never see the touchstart alert. If I scroll the touchend will fire and app__touchMoving will have some sort of decent value. On a side note, I've noticed that sometimes the touchend will seem to fire multiple times.
Am I missing something basic here? Plenty of people say that this should work just fine on Android (and iPhone) yet the first listener never seems to fire.
Update: I should mention that I've been testing on a Samsung Galaxy S running Android 2.1.
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Mar 9, 2010
Actually I'm trying to implement an ontouchlistener into my android (1.5) application. therefore i implemented the "ontouchlistener" into the class, and then i put my code into the: So isn't there a way to catch the touch event before it gets to each of those views?
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Oct 18, 2013
My tablet is Allwinner A10 1.5. Tablet rotate display 180 but the touch is still in the true direction. So I want to rotate the display without rotate touch
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Sep 30, 2010
I was up one night, with my rooted eris. Lying in bed, texting my girlfriend because she refused to let me sleep, I thought nothing of it. My phone was plugged in, and I fell asleep on top of it.Now most of the time my phone will automatically scroll to the left.I have reset my phone and tried other ROMs and it's all the same. I read in the forums that there is no fix but that was as of 5-xx-10.So i was wondering.... Is there a fix now or am I going to have to get a new phone?And if i do have to get a new phone... Would it be a refurb or would it be a NEW phone?
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Dec 11, 2009
I displayed set of images inside the Gallery. By default it has scrolling.But I don't want this way of scrolling. So I implemented OnTouchListener it has only OnTouch() method.Now I want to implement the same left and right scrolling(Left and right dragging) in my own.How to do this? If you have any idea plz share it.
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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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Oct 20, 2009
As a work around to the issue where a list item isn't focusable if it has a focusable child item (a comment by Romain Guy was that this was intended behavior, for accessibility reasons) I simply filled the listItem with two children, each of which is focusable - There's nowhere to directly touch on the listItem anymore, just it's children.
For the most part this is a useable workaround, effectively invisible to the user, except for one thing- Although you can scroll by swiping without issue, touching to *stop* the scroll no longer works- I imagine because the child item is capturing the touch event and not passing it to the parent listitem, at least while the scroll is in effect.
Is there a known workaround for this? Perhaps someway to "pass the baton" of the touch event back up to the parent listItem, or a way to change my design?
BTW- I know there's some built-in functonality for single/multiple choice listviews (checkbox listviews) - That doesn't actually help in my case. The app is a contact list, and the row children are a relativelayout (populated with contact info) and a clickable phone icon (a one-touch dial for the contact), which needs to be visible or invisible depending on whether the stored contact has a phone number.
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Jun 19, 2010
I searched on 'landscape' and couldn't find what I needed.
Can the DI go into landscape mode with the buttons on the left? I'm left handed and would much prefer this arrangement. With my BB I was always able to flip it into landscape mode on either side.
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Mar 19, 2010
I've had my Eris sense November, loaded and uninstalled way too many apps, performed hard resets, loaded the 2.1 leak the night it was "found", and even done a couple hard resets sinse then. Had a new one pop up tonight, playing aroung I installed LockBot free. playing with it and Home, the phone got laggy. So, first thing I do is reboot. the phone restarts, but now it has a translucient box in the lower left corner and says "Safe Mode" and none of my Non-Android (ie Sense, Handcent, Pandore,...) widgets are showing up on the screen, let alone working, they just have little boxes that say "Problem Loading Gadget". Rebooted again, "Safe Mode" is gone, but widgets stil not working.....
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Oct 2, 2010
The screen is off, with the phone left in standby mode. Is it normal for it to die that fast.
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Apr 2, 2010
So when I try texting in Portrait mode, it acts as if my trackball is stuck to the left, now I used to have this problem only when it was charging, but now it's more often.
Also on my home pages, it will slide all the way to the far left one. And sometimes my messaging app will lag, then force close.
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Feb 18, 2009
i'm rearranging items in the list by dragging the item. I'm in the touch mode and want to scroll view couple of items then i'm on the last/first visiblePosition. Since i'm in the touch mode setSelection is useless. How i can scroll a list in the touch mode. For drag i'm using onTouchEvent , onLayout to change background for the current item + some stuff in adapter to make a swap.
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Sep 9, 2010
Here are a few tips with the Fascinate camera:
1. You can access Panorama mode from the Scene menu in the top left. With Panorama mode... you will be guided by a green box, when you get close to take the next snapshot, move very slowly... especially when the green box is almost centered on your screen. This will produce better pictures with less blur.
2. Turn on Anti-shake and Auto-contrast in the settings menu. Turn on Grid if you'd like extra help with taking better photos.
3. Long press the shutter button to auto focus before taking the photo. It's a two-stage button that will take a little bit to auto focus, but it's better than not doing it before taking a photo.
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Apr 6, 2009
I am quite confused on this is InTouch mode or not for a View. Some of the apps I have seen can accept touch and keyboard requests that the same time but I cannot figure out how they are doing it. This is what happens in my app. Please shed some light on why this happens. If I touch the screen the keyboard is no longer responsive until I ackmoved the TrBall which takes me out of touchmode. I have used apps that seamlessly go from touch and keyboard without the need of moving the trackball.
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May 24, 2010
I have a ViewFlipper which contains a few linear layouts.I need to allow the user to flip through them.I've seen other apps which have arrow/triangle indicators on either side of the screen, which, when pressed, flips to the next view in the set.
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Aug 4, 2010
Is it possible to have it so i have swype when the phone is in portrait mode and have multi touch when it is in landscape? it's hard to swype on landscape so multi touch would be awesome.
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May 16, 2010
I love the phone, but the other day the unlock slider suddenly changed from left-right to right-left, and I'm right handed. How do I change it back ?
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Aug 31, 2010
I found a video on youtube where u can have the dpad in the bottom left corner when your holding your evo horizontal. Can I move the dpad from the top left to the bottom left? if so how?
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Oct 25, 2010
is there a written code way to exit out of touch mode in Android i tried googling it and there wasn't and example i was able to find online but was wondering if anyone knew any written code to exit out of touch mode in Android
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Sep 8, 2010
when i go to the home page the ball always pulls to the left and wont let me move any other way besides left. its giveing me alot of problems txting and just moveing around my phone.
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Sep 30, 2010
Battery Left was the first thing I installed on my phone when I got it. My battery life has been terrible so I've been trying to track down the problem. I woke up today, unplugged my phone and didn't touch it for an hour. Battery Left says I have 70 percent left but the battery meter in the status bar showed full. I uninstalled battery left and installed Battstatt and it shows 90 percent (2 hours later). Anyone else have problems with battery left? I hope this fixes my battery problem.
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Nov 28, 2010
Every one can any body explain to me how I can get direction in Htc desire ,cause when I ask about any direction or end point always the answer is no route.
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Apr 8, 2010
I've been playing with the data given by the accelerometer,trying to work out how I can gauge a shake from front to back or side to side. This all seems straightforward enough.But I'd love to know the direction of the shake. So, if the user is shaking backwards and forwards, I want to know if the device is moving away from the user, or back towards him/her. I can't find any way of telling this.
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Aug 16, 2010
I want to show the direction information in my app.Direction from one address to the another using Google maps and also wanted to set overlays at the starting address and the destination address.Is there any classes in android too do that.
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Sep 13, 2010
I am creating a class extending mylocationoverlay. then, i override the draw method. is this the correct method? because after i rewrote the draw method, the map tile cannot render.
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Sep 17, 2010
I'm trying to create a compass for my application BUT the difference is that, instead of having a line always pointing to north, I want this line to point for a specific point. I've been trying dozens of algorithms and nothing works. I've finally found one that points me exactlly to the point I want. But it doesn't move if I change the position of the device which is my objective. Basically, what I want is that no matter the direction I'm using my device. The line always point me to the point (picLatitude,picLongitude). I understood that for the line to move, I can't use static variables. I need to use the values offered by the onSensorChanged(SensorEvent event). This are the data I have available:
event.values[0]: azimuth, rotation around the Z axis (device in relation to north, 0º) event.values[1]: pitch, rotation around the X axis event.values[2]: roll, rotation around the Y axis mLatitude: device current latitude got from GPS (variable) mLongitude: device current longitude got from GPS (variable) picLatitude: static picture latitude established previously picLongitude: static picture longitude established previously distance: distance in Km from device to the picture calculated previously
And this the formula that works correct, and gives me the correct angle. (But it doesn't use any of the Sensor Data so the line Compass doesn't move):
double dLong = picLongitude - mLongitude; double y = (Math.sin(dLong) *
Math.cos(picLatitude)); double x = (Math.cos(mLatitude) * Math.sin(picLatitude) - Math.sin(mLatitude)*Math.cos(picLatitude)*Math.cos(dLong)); double angleDegreesWrongRange = Math.abs(Math.toDegrees(Math.atan2(y, x))); float angleDegrees = (float) ((angleDegreesWrongRange+360) % 360);
myCompass.updateDirection(angleDegrees);
I got this "bearing" formula from this website: http://www.movable-type.co.uk/scripts/latlong.html. I've try adding, subtracting, the azimuth.. I've tried with the others, seriously at this point I'm just demoralized.
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