I am excited

btcomp · September 10th, 2011, 08:10 AM

I am excited to be starting Android Development. I am a member of Wrox forums, since I have been on the ASP.NET 2010 threads with Imar's book. I still wish to go back to that. But as one looking to add to my resume, and having a Droid phone, as of last month, I am anxious to start. I have downloaded the tools, and have the Java JDK. I started to learn some almost two years ago, but stopped. I think my background with Java and .NET will help.

Anyway, I will try to get the tools setup and get the first chapter or two finished this weekend.

BobK · October 4th, 2011, 10:02 PM

I understand the excitement of beginning Android development. My experience does not include any Java. It is Visual Basic.net, but I want to figure out how to write code for Android phones. I do have a question. In Eclipse when I try the code from "Beginning Android Application Development" chapter two I get an emulator that is too big for my screen. I cannot see the top or bottom of the emulator. What do I have to do to resize the emulator?
BobK

btcomp · October 5th, 2011, 09:37 AM

BobK,

I am still in chapter 2, have had a slow go in September. What page are you on with this trouble. I will try to see what I have.

Yeah, I have programmed in VB and I think you will find that the Java isn't too bad, if you have used VB.NET. I have been using a couple of books on Java to learn. I just learn in morsels when I can some Java. It can't hurt to know more languages, if there is ever a tech. recovery!

Right now I am re-reading Sams 'Teach Yourself Java in 24 Hours' by Rogers Cadenhead 5th Edition. I also have Barry Burd's, 'Java for Dummies' 4th edition.

Well, let me know where your problem is and I will look at it, right now I am going to get on the treadmill and then powerwalk outside. We don't get many spring days in October in southern Michigan and the next few days are supposed to be beautiful. http://twitpic.com/6vhfyt

BobK · October 5th, 2011, 09:55 PM

Btcomp,
I am on pages 30-34, but I think that my problem is not with the size of the emulator. From looking at lots more figure displays in the book I see that I have the entire top of the emulator. Some of the bottom is hidden, but I can make out that I have an image of a phone, a 16 dot image of something like a number keypad, and a globe. I have no idea of what the two dots on left and two dots on the right are. Step 5 in the instructions (on page 32) say to press the back button, but what is the back button???? Part of my problem is my ignorance. A problem with this book (at least for me) is the the author often uses instructions that I do not understand (are not explained anywhere in the book - at least not are pointed at in the INDEX). Is the "back button" the same thing as the left arrow button above the keyboard of the Android Emulator?
Are you aware of any complete glossry of terms for Android development in general? The book does not provide much description of many terms used.
For just reading I've made it to the first part of Chapter 4, but for code I am very much still on Chapter 2.

btcomp · October 6th, 2011, 10:49 AM

I am going to review chapter 2 from the start again. I am bookmarked on page 35. Drop me an email BobK at [email protected] and attach an image of what you are seeing. I am seeing the emulator as in the book. I'm not sure what two dots you are seeing? The back button would be next to the menu button on it's right. On the Droid it appears at the bottom to the right of the menu button.

As far as Glossary, I found these on Google. http://developer.android.com/guide/a.../glossary.html

There are others too.

Also: a Glossary app for the Droid: http://www.appbrain.com/app/android-...ivem.aglossary

droid404 · October 7th, 2011, 08:33 AM

Quote:

Originally Posted by BobK

I understand the excitement of beginning Android development. My experience does not include any Java. It is Visual Basic.net, but I want to figure out how to write code for Android phones. I do have a question. In Eclipse when I try the code from "Beginning Android Application Development" chapter two I get an emulator that is too big for my screen. I cannot see the top or bottom of the emulator. What do I have to do to resize the emulator?
BobK

You can use the Google Android system to launch the emulator. When you launch you get the option of scaling the emulator. That might help you.

<edit>
Just found a simpler way of starting the ADV Manager.

In Eclipse from the menu Window > Android SDK and ADV Manager
</edit>

d404

mrguru2012 · November 6th, 2011, 03:09 PM

Hello this will be my first time learning developing Android. I am very Java savvy, Just running into kinks with the book chapter 1-2. Went through all steps and run into problems like after setting all up, android emulator doesnt show Helloworld.apk like in figure 1-28 chapter1 and page 23 some of my code is not the same as presented. Is it because todays files are updated or where did i go wrong?

using eclipse EE IDE
And my SDK and AVD manager shows up seperately why?

[2011-11-06 13:39:29 - HelloWorld1] ------------------------------
[2011-11-06 13:39:29 - HelloWorld1] Android Launch!
[2011-11-06 13:39:29 - HelloWorld1] adb is running normally.
[2011-11-06 13:39:29 - HelloWorld1] No Launcher activity found!
[2011-11-06 13:39:29 - HelloWorld1] The launch will only sync the application package on the device!
[2011-11-06 13:39:29 - HelloWorld1] Performing sync
[2011-11-06 13:39:29 - HelloWorld1] Automatic Target Mode: launching new emulator with compatible AVD 'Android_2.3_emulator'
[2011-11-06 13:39:29 - HelloWorld1] Launching a new emulator with Virtual Device 'Android_2.3_emulator'
[2011-11-06 13:39:33 - HelloWorld1] New emulator found: emulator-5554
[2011-11-06 13:39:33 - HelloWorld1] Waiting for HOME ('android.process.acore') to be launched...
[2011-11-06 13:41:16 - HelloWorld1] HOME is up on device 'emulator-5554'
[2011-11-06 13:41:16 - HelloWorld1] Uploading HelloWorld1.apk onto device 'emulator-5554'
[2011-11-06 13:41:18 - HelloWorld1] Installing HelloWorld1.apk...
[2011-11-06 13:42:29 - HelloWorld1] Success!
[2011-11-06 13:42:29 - HelloWorld1] \HelloWorld1\bin\HelloWorld1.apk installed on device
[2011-11-06 13:42:29 - HelloWorld1] Done!

Tave · November 7th, 2011, 01:17 PM

Did the emulator show up? If it did, did you unlock it?

BobK · November 14th, 2011, 08:57 PM

In answerto my question above, if the emulator is too big for your computer screen, such that you cannot see all of it, do the following.
Launch the Android SDK and AVD Manager
Click on the AVD Emulator you want to use
Click on START
Check Scale display to to real size
Change the Screen Size to whatever you want
I tried to use a 3 inch screen and it was too small, so I increased the size until it was what I wanted. This procedure was given on page 394, in Appendix B, of the book. Reading more of the book apparently helps.
Next question: When I try to run code that previously worked, like HelloWorld, I now get an error: Source not found.
I follow the instructions in the book on page 392 (Appendix A) and pressed F6. Then I get the message: The jar file C:\ . . . \android.jar has no source attachment. You can attach the source by clicking Attach Source below. Below this statement is a button, Attach Source...
When I do this I get a new window asking for the the Location path. I DON'T know the location path. Can anyone help me?