Android :: How To Write Phone Apps?
Nov 20, 2010Please tell that In which topics of Java, One should already be an expert, in order to write Android Applications?

Please tell that In which topics of Java, One should already be an expert, in order to write Android Applications?
We all know that Android runs Dalvik VM programs. Normally developers write programs in Java and they compile it to Dalvik bytecode. I wonder if it would be possible to create a compiler that can take C# code and compile it into Dalvik bytecode.
View 1 Replies View RelatedI, for the life of me, can't figure out how to write reviews for apps! Can I please get some help?
View 5 Replies View RelatedCan I program for Android using Python? I seem to have stumbled upon many links while searching... however neither of them is concrete.Any suggestions? I want to write apps for Android but really don't want to get into Java for all this. PS: My question is whether I can write proper, full fledged apps for Android.
View 4 Replies View RelatedJust wondering if anyone has found any apps that let you write or draw. Such as a notepad it something.
View 2 Replies View RelatedI have a Samsung Galaxy S4 running 4.4.2 KitKat. I tried to set the default image, video and documents directories to a folder on the SD card by going to MyFiles -> Settings -> SDCard path. I am taking photos & videos using the default app, not a 3rd party app. Although it is showing me the default is set to the SD card, the images I take using the default camera app all seem to save to the default internal storage /storage/emulated/0/DCIM/Camera.
getting the default image directories to be on the SD card?
I really want to learn how to make good update-script file ,,
EX : what should i do if i want to flash media apps , Conversation & phone book ....?
What is the correct sums ?
I Used Aroma-app tool but i got FC.
I want to add a feature to my app so i can backup so that the user can backup certain shared_prefs files of other apps (located in data/data/package,name/shared_prefs). I dont want to modify them, just backup and overwrite.
My app has root privileges.Ive tried this a few times but i cant get it to work, im just getting a file not found error when uploading.Ive tried mounting data/ as read/write but that didnt work or i did it wrong.
I want to write game for Android and I need to use inside AI phone slope in some way ( in degree or any other measure). Can anybody tell me how to do that(link or code sample) ?
View 1 Replies View RelatedI am just getting into android development, can anyone guide me how I can write an mp3 player?
View 2 Replies View RelatedI am developing a program that needs async socket. I am new to Android and Java. As I can see in the document, to write network program, I got Socket and SocketChannel, but it seems they are all sync socket, it means, I need an extra thread to call blocking read, write... and etc. Here comes the problem, my program is a chat room, the communicate is not linear, I have no idea when the server will send a message to me, if I read in that thread to wait message from server, but the user want to send message to server, the reading function blocked forever, if there is no incoming data, then the pending outgoing message will not be sent. That's why I need async socket. So my question is: How to write async socket under Android environment?
View 8 Replies View RelatedI am writing an application which requires screen saver. when the application runs in foreground and no body touch it for a while, it will automatically launch screen saver.
View 6 Replies View RelatedI have written an android app that needs the GPS capabilities of the phone. If GPS is activated everything works fine, but if it is not i get an error. So my question: Is it possible to write code that is activating GPS on the phone? I found a forum post that it is not possible because of security reasons. Is this true?
View 3 Replies View RelatedIn logger_event structure, it exists msg[] as payload's message. Just I'm curious that how to write the payload's message in Android.
The reason is that I want to change the specific part of the msg array, for example msg[0] do always 05 when the msg exists.
If you know anythig about this question, plz help me.
Is it possible to write the code/compile Android application on one machine and debug it remotely on the emulator launched on another? I'm sick and tired of the emulator constantly eating half of my laptop's processor.
View 6 Replies View RelatedI am very new to android. The Eclipse and the Emulator is running and I have bought an device already. I want to write a little UPnP- Discover-Application first. I used CyberLinkForJava under Java some years ago. I read on this list (2010/1/29) that this framework can be used under android too. Like mentioned in the post from skonno I downloaded the code via svn from sourceforge and copied the trunk/cyberlink/upnp-stack/src/main/ java section into the source folder of my android project. Then I`d got errors in XercesParse.java and kXML2Parser.java. If I delete this classes it runs without errors. But the code from the cyberlink documentation. Code...
View 4 Replies View RelatedI am downloading some images from website using xmlrpc now i want write the url of those images into xml files how to add data to exiting xml file in android
View 1 Replies View RelatedI want to figure out how to detect when the phone wakes up from being in the black screen mode and write a handler for that event. Is that possible? It seems like this would be something a Broadcast Receiver should handle? Or is there a better or more proper way?
View 2 Replies View RelatedI am a Java professional. Now I'd like to write an application for the Android platform.
What is the initial step I need to take?
How does my Java programming experience help in this case?
How do I create a shared directory with read/write permissions to all applications installed on my phone and that is not on the sdcard?
I tried that :
File f = new File("/tmp");
f.mkdir();
but it is not working.
I have a major problem with my Desire. When flip the phone sideways (to write messages), the writing doesn't appear when i hit the buttons. They appear when i flip the phone back, or when i send the message. But while writing in landscape, they don't appear. I have the stock rom. It's one week "old", so it haven't been "tempered" with (That's what my Hero is for)
View 2 Replies View RelatedNot as familiar with the Moment as the Hero... Can someone tell me an easy way to write a custom PRL to the Moment? It is simply a few key strokes on the Hero but I am told the Moment needs CDMA Workshop to push the PRL.
View 3 Replies View RelatedUnfortunately i can not write in Arabic and for navigate the net the Arabic website is so bad.
View 1 Replies View RelatedSo I use my Eris as a GPS from time to time and when I do, I do not want the screen to shut off automatically. I know how to change this in settings but what I want is a widget that I can keep on my home screen that will disable the screen time out, and then turn it back on again (the way the wifi short cut allows me to turn my wifi receiver on and off without going through settings.
I do not think such a short cut already exists, I would happily write it myself, but not sure how to go about starting.
For using RoadSync I have to write the sign with my X10 mini pro.
How can I do this?
Is it possible to write data directly from my phone to my micro SD card? I got my Captivate a couple days ago, and I've been trying to research as much as I can about it, but I can't find this info. I know I can do it with a computer, but I don't have one. I want to put music and apps I download on the micro SD if possible.
View 1 Replies View RelatedI'm new to Android. I recently was an iPhone fan but thought that Android was a better alternative to iPhone. So anyway, I have a few questions about the Captivate. Does Android have support for apps that you can use to password protect certain apps on the phone? Like messages, and photos for more private stuff. Another question I have: is the Captivates reception really bad? I currently have the iPhone 4 while it doesn't have the best of signal, its not too bad either. And my last question is if the captivate has support for 32gb cards. I'm sorry if someones already gone over these but I could find anything right away. Anyways, I look forward to Android and the Captivate.
View 9 Replies View RelatedI would like to know whats some free ringer apps? browser apps? fb apps? music apps? and theme apps?
View 4 Replies View RelatedIf i were to switch phones (to say rhe nexsus one when it becomes available for vzw) How would i get my paid apps onto my new phone?
View 13 Replies View RelatedWhen i get a list of recommended apps for my wildfire 90% of them don't open.
i do know that is cos of the resolution and etc.
is there anyway it can show phone specific apps?