40 Min Android

8/4/2019 40 Min Android

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Android in 40min@kevinmcdonagh

Friday, 16 September 11


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http://www.geminoid.jpFriday, 16 September 11
http://www.geminoid.jp/http://www.geminoid.jp/


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Install repo$ curl https://android.git.kernel.org/repo > ~/bin/repo$ chmod a+x ~/bin/repo

Download source$ repo init -u git://android.git.kernel.org/platform/manifest.git$ repo init -u git://android.git.kernel.org/platform/manifest.git -b froyo

https://android.git.kernel.org/repohttps://android.git.kernel.org/repo


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http://www.youtube.com/watch?v=Ahg8OBYixL0Friday, 16 September 11
http://www.youtube.com/watch?v=Ahg8OBYixL0http://www.youtube.com/watch?v=Ahg8OBYixL0http://www.youtube.com/watch?v=Ahg8OBYixL0


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Activities

Content Providers

Broadcast RecieversServices



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Explicit Intents Broadcasted Implicit Intents



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public class MyReciever extends BroadcastReciever {@Override

public void onRecieve(Context ctx, Intent i){Intent ss = new Intent(ctx, MyService.class);

ctx.startService(ss);}

}



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Intent intent = new Intent (......................);

startActivity(intent);

Intent i = new Intent();

i.setAction(android.intent.action.PICK);

i.setType(MediaStore.Audio.Playlists.CONTENT_TYPE);startActivity(i)



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Intent i = new Intent (Intent.ACTION_DIAL, Uri.parse(tel:799589844));startActivity(i);

i = new Intent(Intent.ACTION_VIEW, Uri.parse(http://www.droidcon.co.uk));startActivity(i);

http://www.droidcon.co.uk/http://www.droidcon.co.uk/


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Receive MessageCheck SchemeCheck ContentsIntercept SMSPass Extras



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http://schemas.android.com/apk/res/androidhttp://schemas.android.com/apk/res/android


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true @null wrap_content wrap_content @style/Widget.EditText @android:color/white

?android:attr/textAppearance

true true true @drawable/edit_text

?android:attr/textAppearanceMediumInverse @android:color/primary_text_light left



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? l i "1 0" di " tf 8"?


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android.hardware.audio.low_latency

android.hardware.bluetoothandroid.hardware.camera

android.hardware.camera.autofocusandroid.hardware.camera.flashandroid.hardware.camera.frontandroid.hardware.location

android.hardware.location.networkandroid.hardware.location.gpsandroid.hardware.microphone

android.hardware.nfcandroid.hardware.sensor.accelerometerandroid.hardware.sensor.barometer

android.hardware.sensor.compassandroid.hardware.sensor.gyroscopeandroid.hardware.sensor.light

android.hardware.sensor.proximityandroid.hardware.telephonyandroid.hardware.telephony.cdma

android.hardware.telephony.gsm

android.hardware.faketouch

android.hardware.touchscreenandroid.hardware.touchscreen.multitouchandroid.hardware.touchscreen.multitouch.distinct

android.hardware.touchscreen.multitouch.jazzhandandroid.hardware.wifiandroid.software.live_wallpaper

android.software.sipandroid.software.sip.voip



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Dashboard

Action Bar

Search Bar

Quick Actions

WidgetNotifications



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Declaration in Manifest

Class in ApppublicclassWidgetextendsAppWidgetProvider{

publicvoid onUpdate(Context context,AppWidgetManager appWidgetManager,int[] appWidgetIds){ finalint N = appWidgetIds.length; for(int i=0; i


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http://developer.android.com/guide/practices/ui_guidelines/icon_design.html

http://developer.android.com/guide/practices/ui_guidelines/icon_design.htmlhttp://developer.android.com/guide/practices/ui_guidelines/icon_design.html


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Being Asynchronous

HandlersAsyncTasks

IntentServiceAsyncQueryHandlerLoader and CursorLoader



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SQLite

/data/data/your.package.name/databases/

rawQuery()

Use ? as placeholders in the SQL statement for theparameters (SELECT * FROM foo WHERE _id=?)

Query()Builds up a SQL query from component parts



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Adapters wrap around data models

ListAdapterArrayAdapter

SpinnerAdapterCursorAdapter

SimpleAdapterBaseAdapter



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Other things...



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@kevinmcdonagh
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40 Min Android