android installation & configuration, and create helloworld project

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Android Training

Rakesh Kumar Jha Rakesh Kumar Jha [email protected] Mob - 9886336619

mailto:[email protected]

Welcome to Android application development

Before we start this class, be sure you have your development environment set up. You need to: • Download the Android SDK. (developer.android.com) • Install the ADT plugin for Eclipse (if you’ll use the Eclipse IDE). (developer.android.com) • Download the latest SDK tools and platforms using the SDK Manager. • JDK • Eclipse • You can choose any environment (Windows, Linux, MacBook)

Feature – • Free • Huge docs available (google.com) • Support site (to support dev) • Shipment is free • Open source





SDK Download & Installation



Source of Software for Android

To Download Java JDK for Windows System, use below link and set environment variable:- http://www.oracle.com/technetwork/java/javase/install-windows-189425.html To Download Android SDK for Windows System, use below link : – http://developer.android.com/sdk/index.html To Download Android ADT plugin for Eclipse, use below link :- http://developer.android.com/sdk/installing/installing-adt.html#Configure To Download Eclipse (Eclipse 3.6.2 (Helios) or greater) , use below link :- http://www.eclipse.org/downloads/

Configure environment setup (Java)



http://www.oracle.com/technetwork/java/javase/install-windows-189425.html

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

http://developer.android.com/sdk/installing/installing-adt.html




http://www.eclipse.org/downloads/

http://www.eclipse.org/downloads/


Download the ADT Plugin

Other Way to Download/install ADT (if you already downloaded ADT, then leave this step and follow up from point 9 onward :- 1. Start Eclipse, then select Help > Install New Software.... 2. Click Add, in the top-right corner. 3. 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/ 4. 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). 5. In the Available Software dialog, select the checkbox next to Developer Tools and click Next. 6. In the next window, you'll see a list of the tools to be downloaded. Click Next. 7. 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, clickOK. 8. When the installation completes, restart Eclipse.



https://dl-ssl.google.com/android/eclipse/


Download the ADT Plugin

Download/install ADT (if you already downloaded ADT, then follow up below points :-


Name Package Size MD5 Checksum ADT 20.0.2 ADT-20.0.2.zip 12388464 bytes 8e727bcdc9789

c900784a82e6330ec22

1.Download the current ADT Plugin zip file from the table below (do not unpack it). 2.Follow steps 1 and 2 in the default install instructions (above). 3.In the Add Site dialog, click Archive. 4.Browse and select the downloaded zip file. 5.Enter a name for the local update site (e.g., "Android Plugin") in the "Name" field. 6.Click OK. 7.Follow the remaining procedures as listed for default installation above, starting from step 4.


http://dl.google.com/android/ADT-20.0.2.zip




Configure the SDK

After you've installed ADT and restarted Eclipse, you must specify the location of your Android SDK directory: 1. Select Window > Preferences... to open the Preferences panel (on Mac OS X,

select Eclipse > Preferences). 2. Select Android from the left panel. 3. You may see a dialog asking whether you want to send usage statistics to Google. If so, make

your choice and clickProceed. 4. For the SDK Location in the main panel, click Browse... and locate your downloaded Android

SDK directory (such asandroid-sdk-windows). 5. Click Apply, then OK.

Note – Prior to setup ADT or SDK, need to setup/config JDK1.5 or above



Rakesh Kumar Jha [email protected] Mob - 9886336619



Updating the ADT Plugin

1. Select Help > Check for Updates.If there are no updates available, a dialog will say so and

you're done. 2. If there are updates available, select Android DDMS, Android Development Tools, and Android

Hierarchy Viewer, then click Next. 3. In the Update Details dialog, click Next. 4. Read and accept the license agreement and then click Finish. This will download and install

the latest version of Android DDMS and Android Development Tools. 5. Restart Eclipse.




How to Configure ADT


Installing ADT Plugin • Help -> Install New Software -> Add -> Archive -> write the name of ADT (mandatory, give any

name)





Name – KTADB or SymADT or Anything Location – Locate your ADT zip file (you downloaded) Click OK button

Note – Please don’t unzip ADT




If checked “Always run in background”, this dialog will disappear.

If clicked Details button, then current package is installing will show like below, dialog with Detailed view





While installing ADT, you may get warning message like – Note - You need to click OK button

Once, ADT install, it will ask to restart Eclipse, Eclipse will automatic restart like – Note – Click Restart Now




How to Configure Android SDK

• Windows > Android Sdk Manager>select package you want to install.

It will show all APIs level to be download.




How to Configure Android SDK




First Project “HelloWorld” in Android

Create first project in Android 1. Click File Menu 2. Click New 3. Click Other option (if you are not getting

Android option) 4. Drag Android Option at left side 5. Double click on Android Application

Project





6 You will get right side screen 7 Write application name say HelloWorld 8 Click Next button





9 You will get right side screen (only in latest version of Android.

10 Click on Next button 11 Select Blank Activity





12 Write Activity Name say HelloMainActivity

13 It will generate Automatic Layout say activity_hello_main

14 Click finish button 15 It will create Project with Project entire

directory structure.

MVC structure 12 M – Model (.java) – Business logic 13 V – View (.xml) - UI 14 C – Controller (manifest) – Bind up all res

Database Name – Sq lite




HelloWorld Project Structure




HelloWorld Project Structure - Details

Project Directory Structure (main points) 1. Create a new Project. File > Project > Android > Android Project. 2. Name the project – HelloWorld, Package Name: com.rakesh.helloworld, Applicationname: HelloWorld, Create Activity: HelloWorldActivity Finish Project Structure After you create a new project in eclipse, you will see the following top-level folders in your package explorer.

• /src • /gen • /Android version • /assets • /bin • /res

• /drawable • /Layout

main.xml • /Values

Strings.xml • Androidmanifest.xml





The structure of an Android Application • src –

• Contains the .java source files for your project.

• HelloWorldActivity.java. • This file is the source file for your activity.

• Android 2.2 Library – • This item contains one file, android.jar, which contains all the class libraries needed for an Android

application.

• gen – • Contains the R.java file, a compiler-generated file that references all the resources found in your • Android Project. You should not modify this file. As you add the files & folders in your application, • Eclipse will automatically generate the content of R.java.

• assets – • This folder contains all the assets used by your application, such as HTML, text files, databases, etc.





• res – • This folder contains all the resources used in your application. It also contains a few

• sub-folders: • drawable-<resolution>, layout, values. • AndroidManifest.xml –

• This is the manifest file for your application. • Here you specify the permissions needed by your application, as well as other features (such as intent-

filters, receivers, etc.)

• • strings.xml –

• Located in the res > values folder, is a file for storing all the string constants and reference the string using the @string identifier.

• This will ease your task of localizing your application to another language, all you need to do is replacing the string values from the local applications and recompile your application.





AndroidManifes.xml – Every application must have the AndroidManifest.xml in its root directory. It provides essential information about the application to the Android system, information the system

must have before it can run any of the application's code. These information are

Java package Components of the application

Identify any user permissions the application requires, such as Internet access or read-access to the user's contacts.

Declare the minimum API level required by the application, based on which APIs the application uses. Declare hardware and software features used or required by the application, such as a camera,

bluetooth services, or a multitouch screen. API libraries the application needs to be linked against (other than the Android framework APIs), such as

the Google Maps library.




HelloWorld Project Structure - Activity

package com.rakesh.helloworld; import android.os.Bundle; import android.app.Activity; import android.view.Menu; import android.view.MenuItem; import android.support.v4.app.NavUtils; public class HelloMainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_hello_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_hello_main, menu); return true; } }




HelloWorld Project Structure - layout

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:background="#505050" > <TextView android:id="@+id/text1" android:textColor="#000000" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:padding="@dimen/padding_medium" android:text="@string/hello_world" tools:context=".HelloMainActivity" /> <TextView android:id="@+id/text2" android:textColor="#ffffff" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/text1" android:layout_centerHorizontal="true" android:layout_centerVertical="true" android:padding="@dimen/padding_medium" android:text="Welcome to Symphony Android Training Class" tools:context=".HelloMainActivity" /> </RelativeLayout>




HelloWorld Project Structure – Manifest

<manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.rakesh.helloworld" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="15" /> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name=".HelloMainActivity" android:label="@string/title_activity_hello_main" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application> </manifest>




HelloWorld Project Structure

String.xml file <resources> <string name="app_name">HelloWorld</string> <string name="hello_world">Hello world!</string> <string name="menu_settings">Settings</string> <string name="title">HelloMainActivity</string> </resources>


Menu.xml <menu xmlns:android="http://schemas.android.com/apk/res/android">

<item android:id="@+id/menu_settings" android:title="@string/menu_settings" android:orderInCategory="100" android:showAsAction="never" /> </menu>



Create emulator

1. Click on Window Menu 2. Click on ADT Manager 3. New Window will come




Create emulator

1. Click on New Button at right side 2. next screen will come 3. Fill details

1. Name – SymAVD 2. Target – APIs like 8, 10,12,14,16 (as requirement) 3. Click on Create AVD 4. It will create one emulator 5. Then close Android Virtual Device Manager




HelloWorld Project Structure – Result Screen




Run HelloWorld Project




Thank You. Q ?




android installation & configuration, and create helloworld project

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