Android :: Porting A C Or C++ Program Into Phone
Jul 7, 2010
I am attempting to put my C++ program onto an Android phone but have run into several problems with the library linking. It seems most of the useful information I find on this topic through google is outdated (motz) or simply does not account for the complexity of my program. I have been able to run simple C programs but fail when attempting to use libraries outside of Android's Bionic/libc.So my questions are:
Is it possible to port pre-existing *.so libraries onto Android? If so, how could I do this without seg faulting?
Should I be using the CodeSourcery compiler (arm-none-linux-gnueabi-*)? How can I work around the lack of a separate thread library?
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Nov 18, 2010
I am interesting in: what is the best way to write applications (for example games or business apps) for so different platforms like Android and Phone 7 with minimal changes in source code, logic and other developing artefacts? Or it is impossible and i must write my application two times from the "ground" for each of devices? Please tell me about your experience?
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Apr 28, 2010
Is it possible to port a C++ application which uses the STL extensively to Android? I understand that currently the NDK does not support this, but is there any effort (open source or otherwise) underway to achieve this?If not is there a way to cross compile libstdc++ for Android?
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Mar 1, 2010
Could someone guide me to an online tutorial that explains this really well?
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Jan 28, 2009
I have a huge midlet that is completely based on javax.microedition.lcdui and javax.microedtion.m3g.I need to completely rewrite my midlet to port it to android? Is there a way to use javame class in android?
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Oct 15, 2009
I know Java apps can be run in Android. But what I want to know is this: I have a perfectly normal Java app and I want to port it to an android platform. What changes would I need to do to my app in terms of GUI and other code to make it usable in Android? I know Android uses XML file to control the look and feel of its app. So would I need to change my GUI completely?I just want to know the general overview of how porting may be done. If anyone could point me to right resources, that would be great. Also, for your info I'm a newbie to developing android app, so please be patient with me.
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Aug 22, 2009
jarkata commons lib is very useful for our everyday development.is there any porting to android?or is there a good way to porting the jarkart commons libs to the android environment?
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Oct 4, 2009
I'm trying to run J2SE JAVA Application on Android.As you know, the main problem is that J2SE classes such as awt, applet, and etc are not supported in Android. Consequently, this means that I should replace those many java classes with Android classes.So, Do you have some idea or information for replacing J2SE classes with Android classes?
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Jun 18, 2009
My game runs fairly well on my phone, but i want to increase the performance by using opengl. However currently i use the Canvas. I am a beginner in opengl. I have to port all my drawing code to opengl. However can somebody give me directions. For example how do i do the following in opengl:
c.save();c.scale(0.3f+scale, 0.3f+scale, width/2, height/2) c.drawBitmap( bMsg.bitmap, width/2 - bMsg.bitmap.getWidth()/2,dy+height/2 - bMsg.bitmap.getHeight()/2, MESSAGE_PAINT);c.restore();
And why cant i just use Canvas as an abstraction layer (facade) for opengl. An implementation of canvas could call the correct opengl methods in order to render. Why do i have to port all my code. I thought the canvas was a good abstraction interface to a drawing surface, why do i have to bother with opengl? It looks like this is possible, when is see the following contructor: "public Canvas (GL gl)" Also the this seems usefull. SURFACE_TYPE_GPU Surface type: creates a surface suited to be used with the GPU So what should i do? Re implementing the GamePainter completely and call opengl functions directly? Or is there some kind of abstraction mechanism, so that i can use OpenGL with just a few lines of code?
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May 24, 2012
I own an Motorola XT316 device, and i can't find an Custom ROM, so i was thinking to port one from Galaxy 5 (i5550) or LG Optimus me (same hardware, same screen, maybe same camera).
The problem is how to do it, because theres some differences between them like the camera. The XT316 has an locked bootloader, this can screw everything?
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Mar 1, 2013
I tried to port my Micromax A57 [Base] with Karrban A5 [used for port]. When I installing everything works great but, it stuck at boot. How do i check where is the fault or is there anything to do ?
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Dec 10, 2009
Not really a "problem" per se, but an annoyance.I ported my number across to Orange from Voda but in the Phone Status the MSISDN field is still displaying the old number. It's not that I can't remember my number (it's a memorable no. which is why I wanted to keep it), but it's annoying me as I can't seem to get this field to reflect the change.I've tried rebooting it after leaving the SIM out but no difference.Is this just a "bug" or is it something Orange will have to fix/update for me by sending a request to my SIM or something?
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Oct 9, 2010
So does anyone know of a program or anything where us members of AF can just hang out and chat in real time on our droid phones, or preferably all platforms (ios,palm,droid,winmo)? if there isnt one setup would this besomething people are interested in?
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Oct 27, 2010
public class TestCamera extends Activity implements SurfaceHolder.Callback, View.OnClickListener {
Camera.PictureCallback mPictureCallback = new Camera.PictureCallback() {
@Override
public void onPictureTaken(byte[] data, Camera camera) {
// TODO Auto-generated method stub
picture = data } };
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if ((keyCode == KeyEvent.KEYCODE_DPAD_CENTER)) {
mCamera.takePicture(null, null, mPictureCallback);
return true; }
return super.onKeyDown(keyCode, event); }
@Override
public void onClick(View view) {
switch(view.getId()) {
case R.id.camera:
picture_intent = new Intent(this, PictureViewer.class);
picture_intent.putExtra("picture", picture);
mCamera.startPreview();
startActivity(picture_intent); } }
In the emulator, the program behaves like it should. However, when I put this application on my phone (Nexus one), it doesn't switch to the new Activity when I touch the screen after I take a picture. If I touch the screen without taking a picture, it switches to the new activity. I can't figure out why my phone won't switch to the new Activity after taking a picture.
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Dec 10, 2009
What is the best "Wallet", "Password Protector" type program out there for the Android OS? I would prefer one that has a desktop application as well. I was reading the forums on "Splash ID" but it is getting ripped because it cannot tether to phone, you have to use WIFI to sync it with desktop application. I sent them an email and asked if they were looking into a tethering solution and they have yet to replay and it has been a while!
Any thoughts, a good "wallet" application anyone?
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Jun 17, 2010
Someone upgraded my app, and receive this message "The linked program is no longer installed on the phone" What did I do wrong to cause this? The app and the upgrade were signed with the same key as far as I know. Some of the builds were on a linux machine, and other were on Windows. Could that cause this message?
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Nov 17, 2010
Is it possible to make the phone vibrate for ANY toast message in your program? Or do you have to insert a vibrate command on each toast?
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May 5, 2009
In the source of Android I found programs written in language C ("dsp_core.c" and "dsp_dtmf.c") which are capable of decode DTMF. I've recorded (amr file) with my phone a conversation in which the one I'm calling dials DTMF tones from his cell and I would like to use the program to detect those tones and that my phone automatically calls the number that he dialed. My problem is I don't know how to use those two programs with the amr file I've recorded. If you need the programs because you haven't downloaded Android code source tell me and I'll send you them
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Jul 29, 2010
I want to root my phone, I have been reading the how-to's and downloaded files. But first I need to back up my apps and programming. What program can I use the will backup the entire phone? (Note: I have my htc Incredible programmed to work on Alltel, so I want it to backup the programming too). I am good with computers, but just need a push in the right direction so if I mess up I can get my programming back and programs I bought. Without have to reset it up and re download.
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Jun 17, 2010
Just got an HTC Desire and want to run a diving decompression tool on the device. DPlan - Palm PDA Decompression Program | Global Underwater Explorers Unfortunately it's only available for Palm OS. Is there any way I can use this program on my new Droid phone?
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Jul 17, 2010
What is the best email program to use on the Aria?
I have K-9 Mail, but I'm using that with my work address
What would be the best for yahoo & hotmail? I'd like to have it push the emails instantly, but I'm okay with it being like a 5-10 minute delay. I noticed that when I set my yahoo address up on their given email program, it doesn't always show the HTML pictures in the message so I don't always get the email the way I'd like it to. Some come up, others don't, its weird.
So I was just wondering what the best email program would be to use to get what I want?
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Mar 15, 2013
I manually installed a PIM Restore program and now I can't uninstall it as I moved the PBM file over to my SD card and ran it so it's not showing up in the play store.
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Nov 17, 2009
Is there an AIM app that doesn't disconnect with phone use, i dont know why my meebo IM keeps disconnecting, does it do that when your on the phone for a while?
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Jul 14, 2010
How to program the phone htc verizon adr6300.
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Jun 11, 2010
Does fring work between the evo & the iphone? if not, is there any program that does?
i know 1 person with an evo, and a million with the iphone.
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May 17, 2010
I'm having the same issue as listed below from a post on Android Central. Thought I'd check here to see if anyone has had this as well. I've edited the post to reflect my issues. Link to original thread: HTC Mail Memory Leak/Bug ("Phone Storage Getting Low") - Android Central Forums. "I have reason to believe that HTC Mail has a significant memory leak or bug which is causing all of the "Phone storage is getting low" messages. I've had the phone for 3 weeks as of this Thursday. My setup is 2 POP3 email accounts configured during the initial setup in HTC Mail. At around 110-115 megs it triggers the "phone storage low" message. The problem is that as far as I can tell, there's no way to reduce the file size of this HTC mail app once this process has started.
I've deleted every shred of email, all In-boxes, all sent, all trash all everything from every mail folder for every account - no reduction in app size. I trashed every shred of email from the system and the HTC mail app still hovered around 110megs (and the phone storage low indicators continuing). After researching the issue online and piecing 2+2 together I realized that the only solution is to wipe the phone. The issue there is that there are no guarantees that the issue wouldn't resurface again (actually it's quite likely).
Bottom line: HTC mail seems to have a very significant memory leak or bug that causes it to blow through its allocated memory at an alarming pace and there is very little that can be done to stop it once it's started. I would strongly recommend to those of you with the above issues to not use HTC mail after wiping the phone".
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Nov 20, 2010
Can somebody tell me how to install a apk file which i put on the sd card on to the phone, i cant find find it anywhere on the phone. I have browsed this site and i think i have to update from 1.6 to 2.1 but if i done this how do go about finding the file on the phone.
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Nov 9, 2010
Is there some way to program my phone so it knows my local area code? Reason I ask is that I never entered area codes for many the contacts on my old phone, which are all on my SIM card, because I could enter my area code into memory.I just got my Aria, and when I get a call from a contact within my area code, their contact name, which is saved on the SIM card, does not come up. Instead, their entire number, with area code comes up. Do I need to go in and input the area code for all of my contacts that have the same area code as me???
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Jul 20, 2010
Ive been using overclock widget but i don't think its working
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Nov 5, 2009
I was wondering if there is a program that i can use to view the files on my hero from my pc
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