GABRIELLI AdrianPREDA Marius

http://www.mymultimediaworld.com/files/teaching/android

Date Name(API level) Features

23.08.2008 Android 1.0 (API level 1) Market, Browse, Camera, Gmail, Google contacts, Maps, YouTube…

9.02.2009 Android 1.1 (API level 2) Details on Maps, Save attachments…

30.04.2009 Android 1.5 Cupcake (API level 3) Virtual Keyboards, Upload to YouTube and Picasa, Video recording in MPEG-4, Widgets, Animated transitions …

……………………………………………………………………………………..

Date Name(API level) Features

6.12.2010 Android 2.3–2.3.2 Gingerbread (API level 9)

Design and speed, Extra large screens, SIP VoIP, enhanced copy-paste, improvements for game development, improvement in game development…

……………………………………………………………………………………..

Date Name(API level) Features

24.07.2013 Android 4.3 Jelly Bean (API level 18)

Bluetooth 4.0, OpenGL ES 3.0, RTL languages, Developer Logging and debugging enhanced, new camera UI…

31.10.2013 Android 4.4 KitKat (API level 19) Low RAM device API, Wireless printing capability, public API for text messaging, new framework for UI transitions, built in screen recording, Bluetooth MAP support, full screen support, single pane settings app,Step Detector and Counter APIs…

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

index.html http://developer.android.com/reference/packages.html

http://developer.android.com/training/index.html http://www.vogella.com/android.html

*

Device Emulator Screen size Display density

<?xml version="1.0" encoding="utf-8"?><manifest xmlns:android="http://schemas.android.com/apk/res/android" package="com.example.helloworld" android:versionCode="1" android:versionName="1.0" > <uses-sdk android:minSdkVersion="8" android:targetSdkVersion="17" /> <application android:allowBackup="true" android:icon="@drawable/ic_launcher" android:label="@string/app_name" android:theme="@style/AppTheme" > <activity android:name="com.example.helloworld.MainActivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> </application></manifest>

<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" tools:context=".MainActivity" >

<TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/hello_world" />

</RelativeLayout>

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

!!! adb kill-server;adb start-server !!!

http://developer.android.com/guide/topics/resources/providing-resources.html#table2

<resources_name>-<config_qualifier>

Task: Create a Hello World application•TextField: “Hello World”•Add a button below the text•Set the text of the button•On button click change “Hello World” to “Goodbye world!”•When in landscape layout, the place the button to the right of the text

!!!State not saved between reorientations!!!•android:configChanges="orientation|screenSize“•application class; global variable•public Object onRetainNonConfigurationInstance()

• getLastNonConfigurationInstance()•setRetainInstance() -- Fragments

<Button android:id="@+id/button1" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/textView1" android:layout_marginTop="75dp" android:layout_toRightOf="@id/textView1" android:onClick="changeText" android:typeface="serif" android:fontFamily="sans-serif-thin" android:background="@drawable/ic_launcher" android:text="@string/Button" /><Button android:id="@+id/button2" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_below="@id/button1" android:layout_marginTop="75dp" android:layout_toRightOf="@id/button1" android:onClick="changeText“ android:background="@color/black" android:textColor="@color/red" android:text="@string/Button" />

Is default in Android 3.0 or higher (API level >= 11)

<menu xmlns:android="http://schemas.android.com/apk/res/android" >    <!-- Search, should appear as action button -->    <item android:id="@+id/action_search"          android:icon="@drawable/ic_action_search"          android:title="@string/action_search"          android:showAsAction="ifRoom" />    <!-- Settings, should always be in the overflow -->    <item android:id="@+id/action_settings"          android:title="@string/action_settings"          android:showAsAction="never" /></menu>

<application ... >    ...   <activity        android:name="com.example.myfirstapp.MainActivity" ...>        ...    </activity>   <activity …        android:parentActivityName="com.example.myfirstapp.MainActivity" >        <meta-data            android:name="android.support.PARENT_ACTIVITY"            android:value="com.example.myfirstapp.MainActivity" />    </activity></application>

@Overridepublic void onCreate(Bundle savedInstanceState) { … getActionBar().setDisplayHomeAsUpEnabled(true);    //getSupportActionBar().setDisplayHomeAsUpEnabled(true);}

<menu xmlns:android="http://schemas.android.com/apk/res/android" > <item android:id="@+id/action_settings" android:orderInCategory="100" android:showAsAction="never" android:title="@string/action_settings"/></menu>

@Overridepublic boolean onOptionsItemSelected(MenuItem item) {    switch (item.getItemId()) {        case: ….

….        case: ….

…. default:           return super.onOptionsItemSelected(item);    }}

<activity android:name=".MainActivity" android:label="@string/app_name">    <intent-filter>        <action android:name="android.intent.action.MAIN" />        <category android:name="android.intent.category.LAUNCHER" />    </intent-filter></activity>

@Overridepublic void onSaveInstanceState(Bundle savedInstanceState) {    // Save the user's current activity state

…………………………………        // Always call the superclass so it can save the view hierarchy state    super.onSaveInstanceState(savedInstanceState);}

@Overridepublic void onRestoreInstanceState(Bundle savedInstanceState) {    // Always call the superclass so it can restore the view hierarchy    super.onRestoreInstanceState(savedInstanceState);       // Restore state members from saved instance

…………………………………   }

Task 1: Add Style•Create another button below the first button only for the portrait orientation•Add background image and set a text color for the first button•Add a background color and change the font style for the second button

Task 2: Add Functionality•Create another activity with only a TextView

•Implement the Up button•Remove the settings menu•Add a “Exit” menu to both activities

•Add “Toggle Font” menu to the new activity:• Switches between Bold and Normal text in the TextView

Intent intent = new Intent(Intent.ACTION_MAIN);intent.addCategory(Intent.CATEGORY_HOME);intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);startActivity(intent);

Intent intent = new Intent(this, com.example.helloworld.SecondActivity.class)startActivity(intent);

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="horizontal"    android:layout_width="fill_parent"    android:layout_height="fill_parent">

    <fragment android:name="com.example.android.fragments.ArticleFragment"              android:id="@+id/article_view"              android:layout_weight="2"              android:layout_width="0dp"              android:layout_height="match_parent" />

</LinearLayout>

public class ArticleFragment extends Fragment {    @Override    public View onCreateView(LayoutInflater inflater, ViewGroup container,        Bundle savedInstanceState) {        // Inflate the layout for this fragment        return inflater.inflate(R.layout.article_view, container, false);    }}

FragmentManager fragmentManager = getFragmentManager()FragmentTransaction fragmentTransaction = fragmentManager.beginTransaction();ExampleFragment fragment = new ExampleFragment();fragmentTransaction.add(R.id.fragment_container, fragment);//fragmentTransaction.addToBackStack(null); fragmentTransaction.commit();

• Download and run FragmentExercise application• Add the details fragment for the portrait orientation

• Change the program so you use only dynamic fragments• Add a fragment to the bottom displaying the logo• Add transition animation to fragments

http://developer.android.com/reference/ -> setCustomAnimations(int, int, int, int)

FragmentTransaction transaction = getFragmentManager().beginTransaction();getFragmentManager().findFragmentByTag("details");transaction.replace(R.id.portraitLayout, fragment, "details");

File file = new File(context.getFilesDir(), filename);

String filename = "myfile";String string = "Hello world!";FileOutputStream outputStream = openFileOutput(filename, Context.MODE_PRIVATE);outputStream.write(string.getBytes());outputStream.close();

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /><uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />

MediaPlayer mediaPlayer = MediaPlayer.create(context, R.raw.sound_file_1);mediaPlayer.start();

Uri myUri = ....; // initialize Uri hereMediaPlayer mediaPlayer = new MediaPlayer();mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);mediaPlayer.setDataSource(getApplicationContext(), myUri);mediaPlayer.prepare();mediaPlayer.start();

VideoView mVideoView = (VideoView)findViewById(R.id.videoview);String uriPath = "android.resource://com.android.AndroidVideoPlayer/"+R.raw.k;Uri uri = Uri.parse(uriPath);mVideoView.setVideoURI(uri);mVideoView.requestFocus();mVideoView.start();

<VideoView android:id="@+id/videoview" android:layout_width="fill_parent" android:layout_height="wrap_content" />

@Override public boolean onTouchEvent(MotionEvent event) { float x = event.getX(); float y = event.getY();

switch (event.getAction()) { case MotionEvent.ACTION_DOWN: touch_start(x, y); invalidate(); break; case MotionEvent.ACTION_MOVE: touch_move(x, y); invalidate(); break; case MotionEvent.ACTION_UP: touch_up(x,y); invalidate(); break; } return true; }

• implements onClickListener• implements onTouchListener• implements onGestureListener

• view.setOnTouchListener…………

…………

<uses-feature android:name="android.hardware.camera" android:required="true" />

Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);intent.putExtra(MediaStore.EXTRA_OUTPUT, outputFileUri);startActivityForResult(intent, CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE);

@Overrideprotected void onActivityResult(int requestCode, int resultCode, Intent data) {if (requestCode == CAPTURE_IMAGE_ACTIVITY_REQUEST_CODE) { if (resultCode == RESULT_OK) { // Image captured and saved to fileUri specified in the Intent } else if (resultCode == RESULT_CANCELED) { // User cancelled the image capture } else { // Image capture failed, advise user } }

• Create a new Android Application that has the following functionality

• When the application starts it shows a splash screen (video)• Then the camera starts• The user takes a picture• Then a game of “Whack-A-mole” starts

• the background is the picture previously taken• every 10 seconds the user has a special skill that allows to

slash. There is a message that shows when this skill is available (FRAGMENTS!!!)

• Every action creates a different sound (mole hit, mole missed, slashing)

• Android Debug Bridge:• Emulator 1, console: 5554

Emulator 1, adb: 5555Emulator 2, console: 5556Emulator 2, adb: 5557

• adb [-d|-e|-s <serialNumber>] <command>• adb devices• adb shell : am (activity manager), pm (package manager), screenrecord,

logcat• adb install; adb uninstall• adb kill-server; adb start-server

• telnet localhost 5554:• issue calls, sms,…• set sensor values (Acceleration, Rotation, Magnetic-Field, …)• set GPS values

<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

<uses-permission android:name="com.vogella.android.locationapi.maps.permission.MAPS_RECEIVE" />

<uses-permission android:name="android.permission.INTERNET" />

<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />

implements LocationListener

locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);

Criteria criteria = new Criteria();provider = locationManager.getBestProvider(criteria, false);Location location = locationManager.getLastKnownLocation(provider);

@Overridepublic void onLocationChanged(Location location) { int lat = (int) (location.getLatitude()); int lng = (int) (location.getLongitude()); latituteField.setText(String.valueOf(lat)); longitudeField.setText(String.valueOf(lng)); }@Overrideprotected void onResume() { super.onResume(); locationManager.requestLocationUpdates(provider, 400, 1, this); }@Override protected void onPause() { super.onPause(); locationManager.removeUpdates(this);}

implements SensorEventListener

sensorManager = (SensorManager) getSystemService(SENSOR_SERVICE);@Overridepublic void onSensorChanged(SensorEvent event) {

if (event.sensor.getType() == Sensor.TYPE_ACCELEROMETER) {Log.d("accelerometer", "moved!");x_acc.setText(Float.toString(event.values[0]));

}@Overrideprotected void onResume() { super.onResume(); sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER), SensorManager.SENSOR_DELAY_NORMAL); sensorManager.registerListener(this, sensorManager.getDefaultSensor(Sensor.TYPE_MAGNETIC_FIELD), SensorManager.SENSOR_DELAY_NORMAL);}@Override protected void onPause() { super.onPause(); locationManager.removeUpdates(this); sensorManager.unregisterListener(this); }

• SDK Manager  →  Extras → Google Play services → add library to project

• keytool -list -v -alias androiddebugkey \ -keystore <path_to_debug_keystore>debug.keystore \ -storepass android -keypass android

• https://code.google.com/apis/console/

• <uses-permission android:name="com.vogella.android.locationapi.maps.permission.MAPS_RECEIVE" />

<uses-permission android:name="android.permission.INTERNET" />

<uses-permissionandroid:name="android.permission.WRITE_EXTERNAL_STORAGE" />

<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />

<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />

<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />

• <meta-data android:name="com.google.android.maps.v2.API_KEY" android:value="your_apikey" />

<fragment xmlns:android="http://schemas.android.com/apk/res/android"android:id="@+id/map"android:layout_width="match_parent"android:layout_height="match_parent"class="com.google.android.gms.maps.MapFragment" />

map = ((MapFragment) getFragmentManager().findFragmentById(R.id.map)).getMap();

LatLng NIMES = new LatLng(43.821, 4.368)map.addMarker(new MarkerOptions().position(NIMES).title("Nimes"))

map.moveCamera(CameraUpdateFactory.newLatLngZoom(NIMES, 15))map.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);