Android :: Porting Iphone App - If To Start Your App Again From Scratch What Would You Do Differently?
Jul 4, 2010
This questions comes as my team is about to under-go development for a mobile app targeting iphone, android and qt. We aim to complete the iphone version first, and then port to android and qt, and it would be great to know any tips or ideologies to grasp/employ from the outset, that would make the porting process as seamless as possible.
I'm sure there a few of you who have completed their iphone version of an app first, and then gone about developing an android version. I am keen to know any of the hurdles that you encountered, or things you wish you knew from the start.
More specifically, the app we are making will contain forms and some visuals(charts)
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Jul 17, 2010
So I got my first Android phone, this Evo 4G last week. It's really great and I love it but I have all kinds of crazy stuff going on, triple contacts, facebook contacts, my gmail account contacts, my business google apps contacts, just things seem kinda out of control since it's my first Android phone. So I'm thinking about just starting with a clean slate, now that I know a lot more about what the phone can do, which calendars to you, which sms program, other apps that are must-haves. Is this a good idea? Will it do anything to my SD card, which has all of my apps backed up?
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Nov 15, 2010
I got to thinking since people managed to port Android to the Iphone why couldn't we do vice versa? Is it because the Iphone OS is not open source?? The main reason I REALLY want to do this is for the awesome games. An emulator perhaps would be great
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Dec 16, 2009
The all knowing requires a method to reinstall the OS to start from scratch. We have far too much junk installed. We just want to start over.
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Aug 30, 2010
All right guys I'm having all sorts of driver issues. At one time I've been able to take screen shots for my X, use adb, the works. Now for some reason I can't get any of it to work. I'm sure I have a driver conflict somewhere. What I want to do is wipe out all the drivers that are installed for my X and start from scratch like my X has never been plugged into my computer.
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Apr 20, 2010
I'd like to port my iPhone app to Android. The interface is constructed with artwork designed for 320x480 resolution. What steps do I need to take when I'm constructing the XML interface for the Android so that my GUI will be compatible with the different screen sizes (or at least the most popular ones...)?
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Oct 16, 2009
The only thing that i like from the iphone are the games.Has anyone ever been successful at porting iphone games to the g1?Or even just being able to make some sort of emulator just for the games?Any answers would really be appreciated!if someone knows how i would love to see the game rope n fly or something similar to it. it seems like a simple game, i want to start to learn how to write my own stuff for android and then i would just try myself.but however i don't know how yet.Also since most people have g1's with multi-touch i was also wondering about any multi touch games? especially the skateboarding game touch grind.
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Feb 18, 2010
Well right now I have a rooted droid thanks to sholesmod and am running bugless beast 0.7.6 at 800. From what I Have read, it is supposed to be one of the fastest ROMs out there. Too be honest, I have almost noticed it to be slower then .7.5. So I have decided to completely erase everything and start completely from scratch. I was going to go back to stock 2.01 and then do a factory restore. Then I was going to reformat my sd card. Would that be the best route to go if I wanted to start from scratch?
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Sep 23, 2010
I have started to port Android on TCC89XX board, I download Android SDK. and applied the patch with kernel 2.6.29, the Processor is having armv6 instruction set. I am not able to see the network up ifconfig is not able to show the network devices.
Also I do not get why there is no "on" binary in the system/bin, system/xbin, the init.rc and init.goldfish.rc. I cannot get the zygote process up. create_socket throws error.If any one knows about this, please tell what I need to do correctly or point me to some correct URL's.
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Sep 26, 2010
We have an application that runs fine on my Samsung Moment but crashes on load on my HTC Hero, both running 2.1. I thought Android was Android.
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Jun 1, 2009
I am using OpenGL ES and drawing a triangle strip with 4 vertices. The texture I'm drawing was loaded from a PNG using BitmapFactory.decodeStream. I'm confused as to why my images look so bad. I took a screenshot and made the following image, which shows the on-device rendering on top and the actual image on bottom:
http://n4te.com/temp/imgDiff.png
Any idea why there is a difference? I have tried a bunch of different settings but I can't keep it from looking bad.
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Apr 25, 2009
I have a lot of Views where I have set a background image on the top LinearLayout and then I have nested a new linear layout below with a background that is semi-transparent. This works great in 1.1, but in 1.5 the transparency is just disregarded and this breaks my app as the text on top is now unreadable.
Is this a bug or a feature? Is there a better way of doing this? Very grateful for any tips!
Code example:
CODE:....................
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Nov 12, 2010
So I would like for my Google Voice number to ring differently than my regular carrier number. I give out the GV number for business use and my regular one for personal/friend use.
So does anyone know if it's possible to have a separate ringtone? I see under the GV settings area "Sync and notfications - Select Ringtone" but it doesn't appear to work when I call the number. Any ideas?
(I'm on android 2.1 if that matters.)
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Aug 14, 2010
Did anyone encounter this problem? Particularly, I have a dialog style themes for a few activities and these come up as expected on the emulator, but are full screen on the device. The theme I a using is actually an extension of the basic dialog theme (Theme.Dialog). I did not check with the original one.
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Mar 15, 2010
The Eclipse build for my 1.6 application project is succeeding and the Ant build is failing. I'm looking for help on why they aren't behaving the same way.
We are developing on Mac OSX 10.5.8 with Eclipse 3.5 against SDK 1.6 + Google APIs. There are no setting changes in Eclipse, either at workspace or project level. Similarly, our ant is also a vanilla- flavored unmodified installation of 1.7.1. JDK is 1.5.0_22. The CLASSPATH environment variable is not set. JAVA_HOME is /Library/Java/ Home
The application was initially created by a team member using the Eclipse plugins. The application references two jar files, one of which has a dependency on javax.xml.bind.annotation.XmlSeeAlso, which is not defined anywhere in our code or in android.jar. The other jar file has an explicit dependency on android.jar. I generated the Ant build file using android update.
The Eclipse project builds an apk and runs the application in the emulator. I think this is incorrect behavior.
The Android project fails to build. I think this is correct behavior. MyClass.java:98: cannot access javax.xml.bind.annotation.XmlSeeAlso[javac] file javax/xml/bind/annotation/XmlSeeAlso.class not found
Any ideas as to why the two build methods are behaving differently? I would expect them both to fail.
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Mar 29, 2009
I found event handler: dispatchTouchEvent(MotionEvent) works differently between G1 & emulator when finger is holding on touch screen.
I have a class inherited from RelativeLayout and override public boolean dispatchTouchEvent(MotionEvent event) method. After I touch & hold on the touch screen, in emulator I got MotionEvent.ACTION_DOWN event only. But in G1, I got MotionEvent.ACTION_DOWN first and then MotionEvent.ACTION_MOVE continuously, even if I try my best to hold still my finger tip.
I wonder if this is because there is pressure field in the MotionEvent. Because the blood pressure on finger tip changes continuously with heart beat, so no matter how still my finger is, the pressure value still changes. But I wonder if all kinds of touch screen have pressure factor in their touch event? Will all touch screen driver emit touch event continuously when finger is holding on the screen?
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Aug 25, 2010
I'm a little confused toward this one. People seem to have really varied reports about certain kernels and ROMs and whatnot working on their phones. For some, King's #1-3 are either really stable or completely unusable. Same goes for the Hydra kernels, or Skyraider, or Cyanogen.
But I don't get WHY this is the case. Take two Incredibles off of the HTC line and somehow they react differently to the same pieces of software. How's that work?
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Aug 31, 2010
I installed Froyo 2.2 and now on the home page when I press the "search" button it only searches internet. On 2.1 this would search my phone, calendar, contacts.... as well as suggestions for internet. Anyway to turn this feature back on? Somethnig must have gotten reset.
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Oct 17, 2010
For my site I need to be able to tell the difference between when an Android tablet visits and when an Android phone visits. It needs to be detected before the page is sent to the user so using JavaScript to check the screen res isn't an option.At the moment I use this to detect an android device: stripos($ua,'android')Is there anything unique thar a tablet has in it's user agent?
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Apr 22, 2010
I know all about get menu references on callbacks, but I want to create one from scratch - as in
new ContextMenu() or new Menu() (I know that's an interface, so obviously that won't work).
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Oct 30, 2013
When a group message is sent between my co-workers, who are all iphone users, and myself (Note 3), one person in the exchange does not receive the text. This is not the common iMessage issue that was plaguing me when I made the switch from Apple to Android. This is specifically affecting one iphone user. When I send her a text individually it is not a problem. The other iPhone users don't have a problem receiving or sending to me.
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Apr 19, 2010
How to create custom themes from scratch for an application?
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Oct 4, 2010
My app creates a lot of TextView objects and this turns out to be really slow. A look at the traceview output reveals that the bulk of the time is spent in the TextView methods that grab all the default parameters from /res and /util. The thing is, all my TextViews share 99% of these parameters. Is it possible to clone a TextView rather than create one from scratch? If not, what about if I created a pool of TextView objects and reused them?
Just to give some context, I'm generating a spreadsheet to show some data provided from an online source and the spreadsheet can be as big as 20 columns by 50 rows = 1000 cells, each with a TextView. It takes about 25 seconds just to create 1000 TextViews on my Moto Droid.
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Jun 30, 2010
ok, its the Apple Fanbois turn to try and outdo the funniest video on the web..check out their lame attempt to copy it. Code...
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Nov 11, 2010
I'm just getting started with mobile development, and after considerable searching I'm still confused about sending a message from my iPhone to another or an Android.For instance, in building a simple Tic-Tac-Toe game, if I want to notify the other phone of a move, what is the best way to do so? Wifi, bluetooth, 3G? And how? Many methods seem to point to communicating through a web server, but I'd rather send them directly from phone to phone if possible.
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Sep 1, 2010
I was reading about the scratch test (keys, screws, razor, etc.) and how they didn't scratch the screen, but how sand might. I am curious, is it sand specifically, or anything like it, such as dust or lint? Could things like that scratch glass? In other words, can the screen be scratched by slipping the phone into an otherwise empty, clean pants pocket?
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Jun 28, 2013
Are there any guides that show the user how to create a rom from scratch? I've seen multiple guides on creating a rom but they do so using the kitchen. I would prefer something that shows how to make a rom without a crutch.
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Sep 9, 2010
I recently got an HTC Desire. I noticed a hairline scratch on the screen and I buffed it out with toothpaste and flannel. Something I've noticed is that fingerprints and oil get caught a lot easier in the area I buffed the scratch out in? Did I like wash some fingerprint coating or something? I washed the screen already but problem still persists.
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May 6, 2010
I have a very small scratch on my screen after having this phone for 2days and I was wondering if there was a product to fill it in.
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Mar 16, 2010
Even though I'd been gentle as a baby and even dropped this thing on hard wood floor. My first scratch comes from me reaching for the phone in my shirt pocket and my fingernail just scratching the top of the phone. I hadn't the money or time to get a case yet, but I will soon. Is there any way to fix the scratch?
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