Android :: How To Make Interactive Touch Objects On Droid?
Jun 3, 2010
I've never built a game before, and I've not programmed for Android before but am looking to do so over the summer by building a game. What type of object do I use for a shape that I want the user to be able to drag around the screen for instance using touch gestures? How do I tie together the MotionEvent, View and Graphics2D to make objects drawn on screen that can be interacted with? I imagine this will use ActionListeners / Handlers but I'm a bit confused at this stage.
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Apr 27, 2010
I need charts for my application where the user use gesture to redraw the charts in android. Could you suggest any charting API,tool or software which supports.
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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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Nov 9, 2010
I'm developing an Android application with OpenGL and JNI (all OpenGL stuff is in C code).
Imagine I've drawn a cube. I want that user can push his finger over the cube and can rotate the cube and move it around the screen.
Is there any way to do that?
How can assign an event listener to touch and move events only when the user touch the cube?
UPDATE I want something like this: Rotate cube with fingers.
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Jun 11, 2010
Making the touched areas of bitmap image transparent(seems like erasing) while I am moving my finger on that image.
I am having a PNG file with Alpha channel in it. I want to turn the touched pixels to transparent so that, the user can feel that he is actually erasing it.
For this I am using frame layout to load 2 layers. Down layer is for content and upper layer is an Imageview for erasing. I need erase the upper layer when user touch and move his finger on it.
I am not getting how to make it transparent. can anyone please help me in this. If possible please direct me to any sample code, as I am very new to this image processing.
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Oct 26, 2010
The FAQ mentions a method of passing objects around activities. (It is not clear to me): "A HashMap of WeakReferences to Objects. You can also use a HashMap of WeakReferences to Objects with Long keys. When an activity wants to pass an object to another activity, it simply puts the object in the map and sends the key (which is a unique Long based on a counter or time stamp) to the recipient activity via intent extras. The recipient activity retrieves the object using this key.".................
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Jun 15, 2010
I have an application that have a Google map on Google Android 1.5 since we have been working on the application for a long time, we are not in stage of upgrading to the newest framework, so we are using 1.5. Now, I have map locations that are dynamically generated and drawn on the map at run-time to visualize some streams, Up to this point the application is working fine, Now my problem is that I am trying to filter the objects ( addresses) to visualize only the on-screen ones. I do NOT want to visualize the addresses that are off-screen. The way I am trying to do this is to check the screen-coordinates of each object (address) before visualizing it, then it the coordinates (x,y) more than (0,0) and less than (320, 460). I should visualize it. I am trying to use this approach, but it is not working for some reasons, I have tried many posts but could not understand why, there must be something missing somewhere that I am not aware of.
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Aug 12, 2010
Does anyone know how to make my Droid X screen a bit less sensitive to touch.What I mean is when scrolling for music or ringtones I barely touch the screen and it selects the song or ringtone.How can I desensitize it??
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Nov 16, 2009
Coming from the Blackberry world I was wondering if someone (BK?) has made it possible to make the touch keyboard Make a Capital letter when holding down the Key..instead of the crazy character menu I get now.?
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Apr 4, 2010
DROID Eris Interactive "How To" Simulator. Beginners and just folks who might want a refresher on basics might like this interactive simulator for the Eris. A menu on the left with different tasks you may want to invoke starts the simulator. Each next step on the phone turns into a red clickable simulation of the button or menu item on the phone itself.
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Feb 21, 2010
The live wallpapers on Droidmod 1.0 are very cool. How can I get them to be interactive?
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Oct 16, 2010
How to add multi-touch function to sample "softkeyboard"?
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Oct 24, 2009
Just wondering if anyone knows of an App which will allow me to play Interactive Fiction games on my Hero. Something like Frotz which is available on all other platforms.
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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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Oct 31, 2010
Is it possible to insert buttons into a notification?
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Jul 10, 2010
Anyone know any way to make the touch buttons on the bottom less sensitive? Gees, I can't touch the phone without opening the Quick Search. It's not just the button, it's the entire right bottom corner of the phone which activates this. Any utility, tape, hack or anything else to disable this button?
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Jun 11, 2013
Just got the S4. Had the Incredible. Want to make my incredible, basically, a touch device for my kids (Wi-fi) only. So (after posting this question on the verizon forums) I performed a factory reset on my phone (erased all data) in order to start with a clean phone. When it comes back up it wants me to activate the phone. Is there anyway around this? Or do I have to activate the incredible and then reactivate my S4?
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Sep 29, 2010
I have an interactive image which uses OnTouchListener to get the coordinates. In doing so...if a user places their finger on the area it may hit it multiple times thus getting new coordinates within the area that plays the sounds...thus playing the sound twice. Any suggestions on how to clear up this issue?
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Jan 15, 2010
I wanted to know if there is some way to make my galaxy going on multi touch?
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Jul 21, 2010
I have the camera open and I long touch an object and the little box turns green and it makes a noise but no picture is taken...how can i make it take the picture using a long touch
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Jun 11, 2010
I had an InvisibleSHIELD for my old Blackberry and I loved it for its durability. I was thinking about putting one on my new Sprint HTC Hero, but I remember it having kind of a tacky, gummy, sticky feel to it...kind of resistant to sliding your finger over it smoothly. That doesn't matter to me whatsoever when I'm not using a touch screen, but has anyone used one on a Hero? I don't want to buy one and find out it makes my phone harder to use.Specifically, I've just gotten pretty good at using SlideIT (wish I could try Swype), and I have a feeling that with an InvisibleSHIELD it will be much harder to accurately move my finger to the right spots on the screen at the right times. Has anyone had any experience with this?
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Jul 29, 2010
What is proper way to exchange data or objects between different Android Activities?
Welcome screen <-> Main Screen <-> Startup routines <-> Processing data <-> Settings
Is it normal/recommended to have more than one activity in Android app? in my opinion, it's somehow strange to have this model of data exchange inside application
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May 3, 2010
I have an app fetch data from internet, for better performance and bandwidth, I need to implement a cache layer.
There are two different data coming from the internet, one is changing every one hour and another one does not change basically. So for the first type of data, I need to implement an expire policy to make it self deleted after it was created for 1 hour, and when user request that data, I will check the storage first and then goto internet if nothing found.
I thought about using a SharedPrefrence or SQLDatabase to store the json data or serialized object string.
My question is:
1) What should I use, SharedPrefrence or SQLDatabase or anything else, a piece of data is not big but there are maybe many instances of that data.
2) How to implement that expire system.
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Nov 24, 2010
I keep trying to set the cpu governor to interactive however it won't show up when i run report system settings. It just keeps saying it is set to on demand. Can someone please explain what is going on with this.
Also does anyone know where I could find a script to remove the cynogen mod music player and widgets, I turned them on now i can't get them uninstalled.
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Jun 19, 2010
I have to frequently use an international calling service where I have to go through several prompts to make calls. Is there an app which can take into account the gap between the prompts and can automate the inputs. E.g. wait for 2 secs, then enter 1, then wait for 1 second and enter the phone number etc.
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Oct 3, 2012
I know there are several scrolling stock ticker widgets available but I haven't found one that allows you to interact with the widget to scroll it back and forth as well. Any app with this functionality?
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Jul 22, 2010
In a nut shell, when the app is loaded, it will play a short movie (maybe a few seconds at most @ 12-24fps). I will then have 2 buttons displayed on the screen, and depending on what button is pressed, it I will play another short movie (5-10 seconds). While waiting for the user to make a decision, the movie will be looping.
The movie source is stop-motion photography so it's already chopped up into frames. My question here is if I should use a Frame Animation technique, or if I should use a Movie player for this. All in all perhaps there's less than 100 still frames that make up the stop-motion. I was going to go the Frame Animation route, but I wasn't sure if having so many individual frames would kill the app so I thought I'd post here to see if anyone had any insight.
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Aug 30, 2010
Are there any multiplayer interactive games where someone with an Android phone can play with someone who has an iPhone? I'm looking for something like Words With Friends where two people who have iPhones can play scrabble together.
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Nov 9, 2009
Is there a way to make highlighting of a row in a listview delayed if the user is simply scrolling the list with their finger? To clarify, when the user puts their finger down to scroll, the intersected row (if any) gets highlighted for a short moment, before it realizes the user is just trying to scroll (then the highlight turns off). It seems like the timeout is too short - iPhone has the same behavior, just seems that the timeout is longer to discern between a real row- select-touch, and just a scroll-touch. Any way to tweak this? You can see the behavior in any of the system apps that have lists..
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Oct 25, 2013
I purchased the IR overlay from here [URL] I got it working with my mk808b by using an idc fiile, however, it only allows one touch point which means no zoom. On the computer it is multitouch.
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