Introduction to Android Programming
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The document provides an introduction to Android programming, highlighting its open-source nature and compatibility across various devices. It covers the basic structure of an Android application, including code snippets for main components such as activities, layouts, and menus. Additionally, it offers guidance on running applications using the Eclipse IDE and includes social media links for further engagement.
Introduction to Android Programming
- 1. Introduction to Android Programming www.collaborationtech.co.in Bengaluru INDIA Presentation By Ramananda M.S Rao
- 2. Content Content Core Java XML Technologies Introduction to Android Stack Get Started Project Structure UI – Layouts and Views Events, Dialogs and Messages Resources Preferences and Files Application Components and Life Cycle Content Providers Database Storage Multimedia Graphics and Animation Networking Threads Notifications Deployment Debugging Applications Security Framework Search Service Location Service Project About Us www.collaborationtech.co.in
- 3. Introduction Android is an open source and Linux-based Operating System for mobile devices such as smartphones and tablet computers. Android offers a unified approach to application development for mobile devices which means developers need only develop for Android, and their applications should be able to run on different devices powered by Android. Multiple companies producing Android phones like Samsung, HTC, LG, Motorola,LAVA and many others. www.collaborationtech.co.in
- 6. Get Started Srccomexamplehelloworld MainActivity.java package com.example.helloworld; import android.support.v7.app.ActionBarActivity; import android.os.Bundle; import android.view.Menu; import android.view.MenuItem; public class MainActivity extends ActionBarActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } } www.collaborationtech.co.in
- 7. Get Started ResLayout activity_main.xml <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:paddingBottom="@dimen/activity_vertical_margin" android:paddingLeft="@dimen/activity_horizontal_margin" android:paddingRight="@dimen/activity_horizontal_margin" android:paddingTop="@dimen/activity_vertical_margin" android:background="@drawable/im_1" tools:context="com.example.helloworld.MainActivity" > <TextView android:id="@+id/textView1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/hello_world" android:textColor="@color/titlecolor" android:textSize="20sp" /> <TextView android:id="@+id/textView3" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_alignLeft="@+id/textView1" android:layout_below="@+id/textView1" android:layout_marginTop="16dp" android:text="Welcome to Collaboration Technologies" android:textAppearance="?android:attr/textAppearanceSmall" /> </RelativeLayout> www.collaborationtech.co.in
- 8. Get Started ResMenu main.xml <menu xmlns:android="http://schemas.android.com/apk/res/android" xmlns:app="http://schemas.android.com/apk/res-auto" xmlns:tools="http://schemas.android.com/tools" tools:context="com.example.helloworld.MainActivity" > <item android:id="@+id/action_settings" android:orderInCategory="100" android:title="@string/action_settings" app:showAsAction="never"/> </menu> www.collaborationtech.co.in
- 9. Get Started Resvaluesstrings.xml <?xml version="1.0" encoding="utf-8"?><resources> <string name="app_name">Hello World</string> <string name="hello_world">Collaboration Technologies</string> <string name="action_settings">Settings</string> </resources> Running the Application : Let's try to run our Hello World! application we just created. I assume you had created your AVD while doing environment setup. To run the app from Eclipse, open one of your project's activity files and click Run icon from the toolbar. Eclipse installs the app on your AVD and starts it and if everything is fine with your setup and application, it will display the output Emulator window. www.collaborationtech.co.in
- 10. Follow us on Social Facebook: https://www.facebook.com/collaborationtechnologies/ Twitter : https://twitter.com/collaboration09 Google Plus : https://plus.google.com/100704494006819853579 LinkedIn : https://www.linkedin.com/in/ramananda-rao-a2012545 Instagram : https://instagram.com/collaborationtechnologies YouTube : https://www.youtube.com/channel/UCm9nK56LRbWSqcYWbzs8CUg Skype : facebook:ramananda.rao.7 WhatsApp : +91 9886272445 www.collaborationtech.co.in THANK YOU
- 11. About Us