Android training in 10 sessions

Not sure what the context for this training was, but it seems to be an extensive dive into Android in 10 separate lessons.

Transcript

1. Android Intro Stack Overflow edition
2. 12 10 Lectii 1. Setup & Basic 2. 1 Buton 3. Tipuri de layout 4. Comunicarea intre ecrane 5. Liste 6. Adaptoare pentru liste 7. Consumarea Datelor 8. Retrofit 9. Indicatori de incarcare 10.Actiuni pe liste 11.Incarcarea imaginilor 12.Salvarea datelor
3. Lectia 1 - Setup 1. Setup Android Studio 2. Terminologie POO 3. Structura fisiere
4. https://developer.android.com/sdk/index.html
6. • Clasa • Obiect • Atribut • Metoda • Parametru
7. • Android Manifest • Resurse Android • Layout • Drawable • Values • Java
8. Lectia 2 - Un Buton 1. XML Layout 2. Java
9. Layout
10. Layout
11. Java
12. Lectia 3 - Layout types • width, height • Tipuri de ViewGroup
13. Abc wrap_content Abc match_parent Ab 50px
14. LinearLayout
15. Abc Bcdef Gol
16. A B
17. A
18. A B
19. RelativeLayout
20. id view-ul pozitionat
21. ViewGroup • LinearLayout • RelativeLayout • FrameLayout • TableLayout • GridLayout • PercentFrameLayout, PercentRelativeLayout ?
22. Nume Andrei Prenume Popescu Formular
23. Nume AndreiLoremIpsumLoremIpsum Prenume Popescu Formular
24. Nume AndreiLoremIpsumLoremIp... Prenume Popescu Formular
25. http://bit.ly/itst-day2
26. Search text Search Stack Overflow Cazul nostru
27. Lectia 4 - Intents 1. Activitate de rezultate 2. Intenturi intre activitati
28. Intent • actiune • parametri
29. Intent • explicite • implicite
30. context.startActivity(intent)
31. Intent explicit • Intent i = new Intent(context, FinalActivity.class); • i.putExtra("key","value"); • startActivity(i);
32. Exemple implicite • ACTION_VIEW • ACTION_SEND
33. Lectia 5 - Lists 1. Ce este reciclarea viewurilor? 2. ListView 3. Creating our list layout
34. Reciclarea viewurilor
35. Reciclarea viewurilor
36. Cazul nostru List << >>
37. Lectia 6 - List Adapters 1. Date statice locale 2. Ce face un adaptor 3. Realizarea unui adaptor
38. Adaptor
39. Adaptor public View getView(View convertView, int position) convertView = null sau view reciclat
40. Lectia 7 - Consuming data 1. Ne uitam la un call REST online 2. Android UI Thread
41. REST http://domain.com/api/cale/catre/resursa
42. REST • Create • Read • Update • Delete http://domain.com/api/cale/catre/resursa
43. REST • Create • Read • Update • Delete • POST • GET • PUT • DELETE http://domain.com/api/cale/catre/resursa
44. POST /api/cale/catre/resursa HTTP/1.1 Host: domain.com Content-Length: 123 Accept: */* User-Agent: Mozilla/5.0 ... Content-Type: application/x-www-form-urlencoded parametru1=valoare1&parametru2=valoare2
45. GET https://api.stackexchange.com/2.2/search
46. GET https://api.stackexchange.com/2.2/search? intitle=android&site=stackoverflow
48. • items: Array de Obiect • tags: Array de string • owner: Obiect • reputation: int • user_id: int • profile_image: string • is_answered: boolean • view_count: int • link: string • title: string
49. JSON • Obiecte • Array • Chei - valori
50. JSON • Obiecte • Array • Chei - valori • {} • [] • "string" • 100 • true • false • null Valori posibile
51. Android UI Thread
52. http://bit.ly/itst-day3
53. Lectia 8 - Retrofit 1. Creating our first call: search 2. Integrating results with our adapter
54. http://square.github.io/retrofit https://github.com/google/gson
55. build.gradle dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 testCompile 'junit:junit:4.12'
 compile 'com.android.support:appcompat-v7:23.2.0'
 
 compile 'com.squareup.retrofit2:retrofit:2.0.0' compile 'com.squareup.retrofit2:converter-gson:2.0.0' 
 
 }
56. public interface StackOverflowService {
 @GET("/2.2/search?site=stackoverflow")
 Call<SearchResponse> search(@Query("intitle") String query);
 }
57. public interface StackOverflowService {
 @GET("/2.2/search?site=stackoverflow")
 Call<SearchResponse> search(@Query("intitle") String query);
 } Retrofit retrofit = new Retrofit.Builder()
 .baseUrl("https://api.stackexchange.com/")
 .addConverterFactory(GsonConverterFactory.create())
 .build(); StackOverflowService service = retrofit.create(StackOverflowService.class);
58. Call<SearchResponse> searchCall = service.search("android");
 
 searchCall.enqueue(new Callback<SearchResponse>() {
 @Override
 public void onResponse(Call<SearchResponse> call, Response<SearchResponse> response) {
 Toast.makeText(MainActivity.this, "This many elements: "+response.body().items.size(), Toast.LENGTH_SHORT).show();
 }
 
 @Override
 public void onFailure(Call<SearchResponse> call, Throwable t) {
 
 }
 });
59. Lectia 9 - Loading 1. Add loading to the layout 2. Hook loading visibility to retrofit
60. http://bit.ly/itst_day4
61. Call<SearchResponse> searchCall = service.search("android"); 
 // Show loading 
 searchCall.enqueue(new Callback<SearchResponse>() {
 @Override
 public void onResponse(Call<SearchResponse> call, Response<SearchResponse> response) {
 // Hide loading
 }
 
 @Override
 public void onFailure(Call<SearchResponse> call, Throwable t) { // Hide loading
 }
 });
62. Lectia 10 - Loading images 1. Add ImageView to layout 2. Load user profile image using Picasso
63. build.gradle dependencies {
 compile fileTree(dir: 'libs', include: ['*.jar'])
 testCompile 'junit:junit:4.12'
 compile 'com.android.support:appcompat-v7:23.2.0'
 
 compile 'com.squareup.retrofit2:retrofit:2.0.0' compile 'com.squareup.retrofit2:converter-gson:2.0.0' 
 compile 'com.github.bumptech.glide:glide:3.7.0' 
 }
64. Glide.with(parent.getContext())
 .load(question.owner.profile_image)
 .placeholder(R.drawable.placeholder)
 .into(imageView);
65. Keep in touch • https://www.facebook.com/ITst.Iasi • http://bit.ly/android-iasi