My Android Reboot Class: 101

Class: 101

First class and hands on details, how I try to make my first real application. 

What I learn, I will share, each bits and bytes with you all, so that a collective learning can be attained in this first session or in upcoming future sessions. 

This lesson is for the first timers, so if you are advance Android experts you can further skip this lesson or future lessons.

So, this how I started my first Android learning curve.................... 

Prerequisite for this session: 

1.) Windows(XP/7/8) Or Ubuntu (10-12.04 LTS) machines. 
2.) Eclipse IDE 
     (http://www.eclipse.org/downloads/packages/eclipse-classic-422/junosr2)
3.) Android SDK (http://developer.android.com/sdk/index.html#download)
4.) ADT-Plugin for Eclipse to integrate Android feature in IDE.   
    (http://developer.android.com/tools/sdk/eclipse-adt.html)
5.) Latest SDK tools and platforms using Android SDK.

Note: 
Don't worry, if you don't know, how to install and configure the above prerequisite. I will share each details with you in upcoming classes :) 

Android UI Option in Android manifest-XML on Eclipse:

Android UI Option in Android manifest-XML on Eclipse: 

User can now select multiple UI designs for there applications. 

Source: http://developer.android.com/design/get-started/ui-overview.html

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Ubuntu for smart phones.

Android SDK on Eclipse (Ubuntu-Linux)

Android SDK Tools > Rev. 20
Android SDK Platform-tools > Rev. 12

SDK Plaform > API 16

ADT setup on Eclipse IDE on Ubuntu

Custom plugin for the Eclipse IDE, called Android Development Tools (ADT). 

If you need to install Eclipse, you can download it from http://www.eclipse.org/downloads/. 
Android recommend the "Eclipse Classic" version. 

Download the ADT Plugin
Start Eclipse, then select Help > Install New Software....Click Add, in the top-right corner.
In the Add Repository dialog that appears, enter "ADT Plugin" for the Name and the following URL for the 

Location: https://dl-ssl.google.com/android/eclipse/    >>  (Click OK)

Note: If you have trouble acquiring the plugin, try using "http" in the Location URL, instead of "https" (https is preferred for security reasons).In the Available Software dialog, select the checkbox next to Developer Tools and click Next. In the next window, you'll see a list of the tools to be downloaded. Click Next.
Read and accept the license agreements, then click Finish.

Note: If you get a security warning saying that the authenticity or validity of the software can't be established, click OK.When the installation completes, restart Eclipse.

Configure the ADT Plugin
After you've installed ADT and restarted Eclipse, you must specify the location of your Android SDK directory:

Select Window > Preferences... to open the Preferences panel (on Mac OS X, select Eclipse > Preferences). Select Android from the left panel.

You may see a dialog asking whether you want to send usage statistics to Google. If so, make your choice and click Proceed. For the SDK Location in the main panel, click Browse... and locate your downloaded Android SDK directory (such as android-sdk-windows). Click Apply, then OK.

If you haven't encountered any errors, you're done setting up ADT and can continue to the next step of the SDK installation.

Source: http://developer.android.com/guide/faq/troubleshooting.html#installeclipsecomponents

Android on Linux (Ubuntu)

First download this package a .tgz. Unpack it to a safe location on your Ubuntu machine.

Package Name: Linux (i386) >> android-sdk_r20.0.1-linux.tgz

By default, the SDK files are unpacked into a directory named android-sdk-linux_x86.

Make a note of the name and location of the SDK directory on your system—you will need to refer to the SDK directory later, when setting up the ADT plugin and when using the SDK tools from the command line.

Troubleshooting Ubuntu• If you need help installing and configuring Java on your development machine, you might find these resources helpful:o https://help.ubuntu.com/community/Javao https://help.ubuntu.com/community/JavaInstallation

• Here are the steps to install Java and Eclipse, prior to installing the Android SDK and ADT Plugin.

1. If you are running a 64-bit distribution on your development machine, you need to install the   
    ia32-libs package using apt-get::apt-get install ia32-libs
2. Next, install Java: apt-get install sun-java6-jdk
3. The Ubuntu package manager does not currently offer an Eclipse 3.6 version for download,  
     so we recommend that you download  Eclipse from eclipse.org (http://www.eclipse.org/ 
     downloads/). A Java or RCP version of Eclipse is recommended.
4. Follow the steps given in previous sections to install the SDK and the ADT plugin.

• The Android SDK separates tools, platforms, and other components into packages you can download using the Android SDK Manager. The original SDK package you've downloaded includes only the SDK Tools. To develop an Android app, you also need to download at least one Android platform and the latest SDK Platform-tools. You can update and install SDK packages at any time using the Android SDK Manager. If you've used the Windows installer to install the SDK tools, you should already have the Android SDK Manager open. Otherwise, you can launch the Android SDK Manager in one of the following way.

• On Mac or Linux, open a terminal and navigate to the tools/ directory in the Android SDK, then execute android sdk.

When you open the Android SDK Manager, it automatically selects a set of recommended packages. Simply click Install to install the recommended packages. The Android SDK Manager installs the selected packages into your Android SDK environment. 

The following sections describe some of the available SDK packages and more about which ones we recommend you install.Once you have installed your packages, continue to the next page.

Figure Alpha. The Android SDK Manager shows the SDK packages that are available, already installed, or for which an update is available.

Source: http://developer.android.com/sdk/installing/index.html

Jelly Beans Emulator on Ubuntu (Linux) machine.

Jelly Beans Emulator on Ubuntu (Linux) machine. 

Are the processors 64-bit on Ubuntu?

A 64-bit processor will have lm ("long mode") in the flags section of cpuinfo. A 32-bit processor will not.

e.g.,

flags           : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt lm 3dnowext 3dnow pni cx16 lahf_lm cmp_legacy svm cr8legacy ts fid vid ttp tm stc

--------------------------------------------------

Are the processors dual-core (or multi-core)?

$ grep 'cpu cores' /proc/cpuinfo
cpu cores       : 2
cpu cores       : 2
cpu cores       : 2
cpu cores       : 2

"2" indicates the two physical processors are dual-core, resulting in 4 virtual processors.

If "1" was returned, the two physical processors are single-core. If the processors are single-core, and the number of virtual processors is greater than the number of physical processors, the CPUs are using hyper-threading. Hyper-threading is supported if ht is present in the CPU flags and you are using an SMP kernel.

----------------------------------------------

CPU Information: 

cat /proc/cpuinfo

-----------------------------------------------

Installing Eclipse and the Android SDK (Ubuntu 8.04/8.10):

http://androidforums.com/developer-101/2321-installing-eclipse-android-sdk-ubuntu-8-04-8-10-a.html

Apps on sdcard -- can't install apps anymore: Tips for installation.

Try this trick:

kash@ubuntu:- /xyz$ adb shell

# cd system/app

# chmod 771 app

# exit

kash@ubuntu:- /xyz$ adb install kash.apk

And the the .apk installed on Android device.