What would be the best way to access the USB as a serial port on a android device (HTC Magic) ?
I am thinking about a OBD-II interface, can I do this on a startdard phone or more likely I'll need a modified firmware ?
View 7 Replies
I used to work with phones and am aware that most Android phones have two boxes you can check/uncheck the first time you turn them on. One says something about using your location for Google apps. The other says something like "allow Google to collect anonymous location data". When I got a new phone today, the clerk turned it on when I wasn't paying attention as part of the setup process and checked both boxes without checking with me first. Where can I disable these features now that the phone has already gone through its initial setup process?
Edit: Found the answer to one of these shortly after posting due to a better-worded search. Apparently turning off "Use wireless networks" and "Use GPS satellites" under "Location and security" turns off anonymous collection of data. (I had seen these while searching the phone earlier, but the caption does not make it clear that checking them enables Google to collect anonymous location data even when you aren't running any apps. It's only when you uncheck them and try to check them again that it pops up with this information.)
Does anyone have any of andrew bells android google mini figurines that they don't want. I'm looking to buy some specific ones.
View 11 Replies View RelatedI am developing a camera application , where the frame rate is important. However, camera uses a preview callback function which allocates a byte[] array of 230400 bytes, which makes it necessary for the garbage collection to step in. Can someone suggest me a way to avoid garbage collection stepping in?
View 10 Replies View RelatedAnyone know of such an app? It sure would be nice to have a list on my DX when I'm in a store to ensure I don't buy any dupes.
View 5 Replies View RelatedHow do get these to work I tried using better cut but can't figure it out [Icon_Pack]. The Droid Collection_v1.0-xda-developers.
View 4 Replies View RelatedI have a particular collection of code along with some XML files that I need to share with every application I will make.
At the moment I can't because as far as I am aware there is no way to do this. This seems like a massive oversight by the development team.
If the code needs changing, I have to change it in every app that I create - and will create in the future.
Are there any ways to share code in android yet? I am using Eclipse for development.
Ok before you start salivating and jumping up and down like a hysterical clown, read the following disclaimer
"At the moment you can not do this, but very soon you will. In fact it is being developed as we speak"
Still interested? Read on
Mozilla, our (second) favourite web browser has had an open source media library and player for some time ( called songbird ). The interface looks cunningly similar to i-tunes, and keeping in tradition with mozilla's theme and addon creation the plugins, themes and addons are pouring in.
According the their roadmap support for extrnal USB devices like mp3 players, cellphones and PDA's is coming very soon, in the next development phase. Which means one thing for you and me, the ability to sync our media collection with our G1's
Now that girls in home, girls on river, etc have been removed from the market can someone tell me where I can find them?
View 2 Replies View RelatedI'm writing an Augmented Reality codes that should works in realtime,
But the VM's garbage collection hinders my program's performance.
I checked my program's execution time for each in OnPrevFrame(byte[], Camera)
and it execution time increases from around 50ms to 120ms at just after each garbage collection.
I copied parts of logs below. (local time is just before and after of signal processing, and global time is time stamps for every onPreviewFrame() calling )Also I executed onPreviewFrame without any signal processing on it, but
the garbage collection is also carried showing debugging message around 60ms it spends for memory release.
Is this garbage collection come from releasing byte[] yuvs image data? ( i uses 320x240 thumb nail )
then this clearly comes from Java's limitation, so there will be no hope for improvement unless
I found a way to directly access camera device? do you think this is feasible? Hope listen to others' comments.
I'm trying to write code that draws accuracy circles around a gps location based on a time param. I have no problem setting up the GPS, or of calculating how to draw the circles.What's been killing me is that the Overlays always overwrite one another.So I can never have more than one circle.I've looked at all the examples and tutorials online but they seem to be obsessed with putting in icons or with Drawing from some database or array.If I understood correctly I should be able to do itemizedoverlays and just draw as i go without having to track each readout in an array.
View 9 Replies View RelatedI'm drawing a rect to a surfaceview. Nothing special, just a test like this, in the surfaceview-extended class:
private int mPosX = 0; private Paint mPaint = new Paint(); Code...
the rect just bounces around the screen. I'm watching DDMS, I still see the garbage collector being called, even with this simple draw loop. There is no other application code being executed.
I'm wondering if it's realistic to expect the gc to not be called at all if we take care to not allocate any objects during our draw loops. I'm trying to extend this example to do some smooth animations, but every once in awhile the gc is called and you can see the drawing stutter. Although none of my application code is allocating any new objects, I don't know what the underlying API is doing inside surfaceview etc, and I doubt we can control that. Just wondering if this is not possible, I'd prefer to abandon this game idea up-front if we can't guarantee smooth animation.
I've got a class called PhoneContact with 3 properties:
Title, Description and PhoneNumber
If I have a collection of these, how would I go about binding these to a ListView containing a TextView for each property?
Hi, I have discovered while using DDMS that the basic OpenGL system calls in my code are allocating memory and causing the garbage collector to fire! It's not the system calls themselves causing the problem but the use of direct byte buffers to pass data in.
The direct byte buffers I use in calls such as glVertexPointer & glTexCoordPointer lead to java.nio calls to read the byte buffers, leading to objects of type org.apache.harmony.luni.platform.PlatformAddress being created.
These buffers are the same as in the example OpenGL code. I am creating a ByteBuffer using allocateDirect() and then creating an IntBuffer using ByteBuffer.asIntBuffer() to pass data to the OpenGL functions. The problem occurs as the system is reading the buffers.
Is there a way around this? Maybe using something other than direct byte buffers? It seems that using this method, OpenGL code of any complexity (ie a lot of OpenGL system calls in every frame) is doomed to pause a lot. I am aware that these calls should be kept to a minimum, but I still need to use a certain amount of them.
I'm performance tuning interactive games in Java for the Android platform. Once in a while there is a hiccup in drawing and interaction for garbage collection. Usually it's less than one tenth of a second, but sometimes it can be as large as 200ms on very slow devices. I am using the ddms profiler (part of the Android SDK) to search out where my memory allocations come from and excise them from my inner drawing and logic loops. The worst offender had been short loops done like,
for(GameObject gob : interactiveObjects)
gob.onDraw(canvas);........................
I have screen 1 of my app which I want to transition smoothly into screen 2.
I want the transition to be smooth but I don't mind a slight pause before or after the transition. Before the transition I dump a lot of objects that are no longer needed from screen 1.
However, as luck would have it (!), the garbage collection almost always takes place during the transition causing the frame rate to drop and the transition looks terrible :(
Is there a way for me to either force the garbage collection to complete before the transition or delay until after the transition is finished? I have tried System.gc() in various places but it doesn't seem to help performance.
I need many hours of video for my 2 year old for long flights. Is there anywhere in the android universe with downloadable video content similar to itunes and amazon? My iTunes and amazon video collection will not play on android device.
View 10 Replies View RelatedI feel like this should/may have already been asked, but what's the easiest way to get my mp3 collection onto my Droid Incredible? Is it even possible?
View 3 Replies View RelatedI have a Service which uploads a big file to a webserver. This works fine on the emulator (android 2.1). But if i run it on a Nexus One Froyo phone it starts out fine. But after a while it is in an infinite GC loop. The whole phone becomes unusable:.........................
View 5 Replies View RelatedIn my ListView, there's one line of code in my ViewBinder that causes lots of garbage collection as I scroll through the list, about every two seconds...
D/dalvikvm(16312): GC freed 13171 objects / 659576 bytes in 162ms D/dalvikvm(16312): GC freed 13122 objects / 654128 bytes in 129ms D/dalvikvm(16312): GC freed 13134 objects / 655416 bytes in 142ms D/dalvikvm(16312): GC freed 13129 objects / 654840 bytes in 129ms D/dalvikvm(16312): GC freed 13149 objects / 655000 bytes in 110ms D/dalvikvm(16312): GC freed 13150 objects / 655720 bytes in 127ms D/dalvikvm(16312): GC freed 13075 objects / 652256 bytes in 111ms D/dalvikvm(16312): GC freed 13232 objects / 659040 bytes in 136ms D/dalvikvm(16312): GC freed 13106 objects / 653920 bytes in 110ms D/dalvikvm(16312): GC freed 13155 objects / 655152 bytes in 110ms
The offending code is here, which formats a price for each item in the list: String price = cursor.getString(columnIndex); final float pricef = Float.parseFloat(price); price = new StringBuffer("$").append(String.format("%. 2f",pricef)).toString(); ((TextView)view).setText(price);
If I comment out the line with String.format, the garbage collection goes away. So what's the "right" way to do this to avoid allocations? That database field holds an unformatted text string which I'm trying to format into proper currency format (example: format "1.5" to "$1.50")
As the HTC Evo 4Gs are slowly making their way into the hands of people (after the Google I/O event), it seems that 720p videos are making their way onto Youtube. I've collected a handful so that people could see what was representative of the Evo's video. I've noted whether they are indoors or outdoors since the amount of light can have a significant impact on the quality of the video.
View 15 Replies View RelatedI've taken the time to write down a collection of Android tips and tricks (along with a few tutorials) based on my own experiences and what I've learned in various forums. For those of you who want to check it out, here's the link:Android Tips & Tricks and Tutorials I wonder if anyone know of a trick that isn't listed in the guide? If so, please share it with me My hope is that the collection will grow.One thing I learned today actually is that when you type with the on-screen keyboard on the HTC Hero, instead of hitting then space for a new sentence, you can just double tap on the space bar and it will do a full stop, space, and then capitalize the next letter. It's much smoother.
View 3 Replies View RelatedIs it possible to provide files into the data/data directory of an android application on install? If so, where would I put these files in my project?
View 1 Replies View RelatedI'm making an Android Java app game (although this question applies to all languages really) and hope to release the first version soon. I'm nervous about how I save data in my game. My problem is that, if in a later update, I decide to store more data or store the same data in a different way, I need to be careful I don't lose or corrupt data for users that upgrade (i.e. I want users to be able to use data created by an old version in the new version, like their high scores from before).For example, say I want to save high scores in version 1.
View 3 Replies View RelatedCan anyone help explain what this does? I did a small search around the internet, and it came up with just about nothing.My first question is: I turned mobile data off, and yet, during the night, I was charged for data, so something leaked.Personally, I thought if this was because of this particular function. But maybe it was something else.So, I turned it off, but around the forums for other androids people seem to think that syncing doesn't work as well with this disabled.Does anybody know what might have happened? And could this function have been the thing that caused the leak.The leak, was actually for only 50 KB or so, but because I'm on Page Plus, it caused me to go under the required balance to refill of $29.95 and caused my plan to lapse. It's important for me for this not to happen again. Can anyone give any tips?
View 2 Replies View RelatedHow I'm able to do what I've written in the topic. I've looked through many tutorials on AsyncTask but I can't get it to work. I have a little form (EditText) that will take what the user inputs there and make it to a url query for the application to lookup and then display the results.
What I think would seem to work is something like this: In my main activity i have a string called responseBody. Then the user clicks on the search button it will go to my search function and from there call the GrabUrl method with the url which will start the asyncdata and when that process is finished the onPostExecute method will use the function activity.this.setResponseBody(content).
This is what my code looks like simpliefied with the most important parts (I think).
CODE:.......................
For my CS bachelors I am doing a Senior project using android and google maps.My vision was to do a (relatively) simple Dijkstra shortest path using google maps road data. I was going to add elevation change along with 2D distance. I am doing well playing with maps in android but I am completely stumped trying to access google maps data in any sort of searchable form.How would I go about accessing the data for say intersections of roads (lat/long) in a particular area?There has to be a way to pull that data in some sort of tree form. It seems like it may be possible with kml?Any pointers would be awesome.I want my paths to follow roads but If i cant this is going to turn into an orienteering application fairly fast.
View 2 Replies View RelatedIs it possible to copy a file located on the sdcard to a package's internal filesytem located at /data/data/packagename/files/ folder?
View 3 Replies View RelatedI just want to capture the updated screen data instead of reading all data from framebuffer. Can I get this data by what method?
View 4 Replies View Relatedto start with I've gone through the entire notepad tutorial, I'm a professional game programmer who has some extra time. (though most of my time has been in C++, I did take a year or two of Java classes in college, and remember some of it). I'm not sure the site is a good site to ask questions like this.. If someone has a Forum that might be a good place to ask these newbie questions, please feel free to point me in the direction. I've examined a few of the samples, and think I've a grasp of what I want to do. I've a three to four project plan for some Android releases to sharpen my skills, but since this is my first project and I have never really developed for a mobile phone or the android before, I'd like to make sure I have a solid plan.The first project is an example of the license plate game, however I want to do a few things to change it. Heck maybe when I'm done it'll become a bingo style game, with bluetooth connectivity, you never know. The base idea is I want to offer a list of states, with checkboxes next to them. so to do this, I'll be starting with a Linear List layout similar to the note pad example, and then have a row that is only a Checkbox. I can use text and call strike through if it's been checked off. Perhaps offer an option to not show them if they are checked.
But I want the list to be generated from a set of lists. Maybe all of America's states, maybe reasonable American states (no Hawaii, no Alaska) maybe a North American list, (add in Mexico and some Canadian provinces), a European list, who knows. I'd probably have to have a pop up window that lists all of the lists I suppose using a radiogroup of some sort. So then as far as the data, after weighing options I think best solution is to make a database with two fields, "checked" and "name".I figure I can use the menu for most of the user interaction (aside from clicking on stuff we want to check off) with maybe a few context menu items, I understand how to make all of those already so I should be good. The question I have is what is the best way to populate the lists? Should I create raw data, and have different files for all the lists? Or is there some other way to do this? I've seen this done on the searchable dictionary, but I'd like to hear what people who have actually generated the data like this before. In addition is there an easy way to look at the sql database these applications create, or do you have to run searches on them and output the data? Finally any other suggestion or advice? I definitely want to try to get something like this on the market so I can see the full life cycle and see if anyone actually likes it. (luckily there's not a plethora of them already) but I also want a few people to look over my code if they're willing when I'm done to make sure I've done this right or at least not missing any basic mistakes.