Saindo da zona de conforto resolvi aprender Android! by Daniel Baccin

Transcription

1 Saindo da zona de conforto resolvi aprender Android! by Daniel Baccin

2 Mas por que Android???

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18 Documentação excelente

19

20

21 Crescimento no número de apps

22 Fonte:

23 Versões

24

25

26

27 Material Design

28

29

30

31 Resolvi aprender android!

32

33 Rápido resultado

34

35 336!!!

36

37

38 Para tudo eu imagino um app

39 Primeiros desafios

40

41

42 Estrutura do Projeto Classes JAVA

43 Estrutura do Projeto Recursos

44 Estrutura do Projeto AndroidManifest

45 Estrutura do Projeto Gradle

46 Conceitos básicos Activity XML de Layout AndroidManifest Intent

48 Activity Comportamento public class FormularioActivity extends protected void oncreate(bundle bundle) super.oncreate(bundle); setcontentview(r.layout.formulario); // fazer coisas legais aqui } } {

49 Activity Comportamento public class FormularioActivity extends protected void oncreate(bundle bundle) super.oncreate(bundle); setcontentview(r.layout.formulario); // fazer coisas legais aqui } } {

50 <LinearLayout xmlns:android=" android:layout_width="match_parent" android:layout_height="match_parent" android:orientation="horizontal"> <ImageView android:layout_width="52px" android:layout_height="52px" <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:textsize="60px" </LinearLayout> XML de Layout Aparência

53 @Override protected void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.activity_main); Activity listadeparticipantes = (ListView) findviewbyid(r.id.listparticipantes); listadeparticipantes.setonitemclicklistener(this); FloatingActionButton fab = (FloatingActionButton) findviewbyid(r.id.fabaddparticipante); fab.attachtolistview(listadeparticipantes); actionbar = getsupportactionbar(); if(actionbar!=null){ actionbar.setbackgrounddrawable(new ColorDrawable(0xFFFF4500)); actionbar.settitle(r.string.lista_participantes); } }

57 Activity

58 Activity

59 Activity

60 Activity

61 Activity

62 Activity

63

64

65

67 public void abrirformparticipante(view view){ Intent irparaformulario = new Intent(this, FormularioParticipanteActivity.class); startactivity(irparaformulario); } Intent

69 <manifest xmlns:android=" package="br.com.kenuiapps.palestra" > <application android:allowbackup="true" > <activity android:name=".activity.listaparticipantesactivity" <intent-filter> <action android:name="android.intent.action.main" /> <category android:name="android.intent.category.launcher" /> </intent-filter> </activity> <activity android:name=".activity.formularioparticipanteactivity" </application> </manifest> AndroidManifest

70 <manifest xmlns:android=" package="br.com.kenuiapps.palestra" > <application android:allowbackup="true" > <activity android:name=".activity.listaparticipantesactivity" <intent-filter> <action android:name="android.intent.action.main" /> <category android:name="android.intent.category.launcher" /> </intent-filter> </activity> <activity android:name=".activity.formularioparticipanteactivity" </application> </manifest> AndroidManifest

71 Mais conceitos... Adapter SQLite DAO Test

73 @Override protected void onresume() { super.onresume(); List<Participante> participantes = obtemlistadobanco(); ListaParticipantesAdapter adapter = new ListaParticipantesAdapter(this, participantes); listviewdeparticipantes.setadapter(adapter); } Adapter

74 public class ListaParticipantesAdapter extends BaseAdapter { private Activity activity; private List<Participante> participantes; public ListaParticipantesAdapter(Activity activity, List<Participante> participantes) { this.activity = activity; this.participantes = participantes; }... } Adapter

75 public class ListaParticipantesAdapter extends BaseAdapter { private Activity activity; private List<Participante> participantes; public ListaParticipantesAdapter(Activity activity, List<Participante> participantes) { this.activity = activity; this.participantes = participantes; }... } Adapter

76 @Override public View getview(int position, View convertview, ViewGroup parent) { View linha = activity.getlayoutinflater().inflate(r.layout.lista_participantes, null); Participante participante = participantes.get(position); TextView textviewnome = (TextView) linha.findviewbyid(r.id.lista_nome); textviewnome.settext(participante.getnome());... } Adapter

77 @Override public View getview(int position, View convertview, ViewGroup parent) { View linha = activity.getlayoutinflater().inflate(r.layout.lista_participantes, null); Participante participante = participantes.get(position); TextView textviewnome = (TextView) linha.findviewbyid(r.id.lista_nome); textviewnome.settext(participante.getnome());... } Adapter textviewnome

79 public class DataBaseHelper extends SQLiteOpenHelper { public static final String BANCO_DADOS = "Palestra"; private static int VERSAO = 1; public DataBaseHelper(Context context) { super(context, BANCO_DADOS, null, VERSAO); } SQLite

80 @Override public void oncreate(sqlitedatabase db) { db.execsql("create TABLE participante"+ " ( _id INTEGER PRIMARY KEY," + " nome TEXT," + " telefone TEXT," + " TEXT," + " presente INTEGER, " + " tamanhoblusa INTEGER" + " );" ); } SQLite

81 @Override public void onupgrade(sqlitedatabase db, int oldversion, int newversion) { String dll = "DROP TABLE IF EXISTS participante"; db.execsql(dll); this.oncreate(db); } SQLite

83 public class ParticipanteDAO{ private DataBaseHelper helper; private SQLiteDatabase db; public PalestraDAO(Context context){ helper = new DataBaseHelper(context); } public SQLiteDatabase getdb() { if (db == null) { db = helper.getwritabledatabase(); } return db; } DAO

84 public class ParticipanteDAO{ private DataBaseHelper helper; private SQLiteDatabase db; public PalestraDAO(Context context){ helper = new DataBaseHelper(context); } public SQLiteDatabase getdb() { if (db == null) { db = helper.getwritabledatabase(); } return db; } DAO

85 public class ParticipanteDAO{... public long salva(participante participante) { ContentValues values = participante.getcontentvalues(); return getdb().insert(databasehelper.participante.tabela, null, values); }... DAO

86 public ContentValues getcontentvalues() { ContentValues values = new ContentValues(); values.put(databasehelper.participante.id, getid()); values.put(databasehelper.participante.nome, getnome());... return values; } DAO

88 public class ParticipanteDAOTest extends AndroidTestCase { public void testinsertdb() { ParticipanteDAO dao = new ParticipanteDAO(mContext); long qtddelinhasinseridas = dao.salva(dadoumparticipante()); asserttrue(qtddelinhasinseridas>0); } } Test

89 public class ParticipanteDAOTest extends AndroidTestCase { public void testinsertdb() { ParticipanteDAO dao = new ParticipanteDAO(mContext); long qtddelinhasinseridas = dao.salva(dadoumparticipante()); asserttrue(qtddelinhasinseridas>0); } } Test

90 Novidades Google I/O 2015

91 Internet das coisas

92

93 Tecido sensivel ao toque

94 Android Pay

95 Android Development Tools

96 Android Development Tools

97 Futuro???

98 Onde buscar o conhecimento? Getting Started Google+ & Udacity Alura Comunidades no Google+ Grupos Google Java CE Stack overflow

99 Referências

100 Go Developers!!!