Android Overview

talk for trento's GDG

Transcript

1. An Overview
2. Who am I? giovannidefrancesco.eu
3. Why Android? Detains 75% of the market-share (2 Nov 2012, by IDC)
4. Did you say, MONEY? Talk is cheap, show me the code. Now.
5. How can I Build? !  Android ADT Bundle (and Java :P) http://developer.android.com/
6. Activity: A single, task- focused, ”window”.
7. Views Every “brick” in our Activity Image by mobiletuts
8. Activities in code Res/layout/main.xml <?xml version="1.0" encoding="utf-8"?> <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/ android" android:layout_width="wrap_content" android:layout_height="wrap_content" > <TextView android:id="@+id/tv1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="Hello World!" /> </RelativeLayout> MyActivity.java public class MyActivity extends Activity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); } @Override protected void onPause() { super.onPause(); } }
9. Referencing a view TextView tv = (TextView) findViewById(R.id.tv1);
10. Some Examples Enjoy!