Android App Pro-tips - GDG DevFest Taipei 2016

* https://github.com/yongjhih/kotlin-extensions
* https://github.com/yongjhih/android-proguards

Transcript

1. Android App 的日常 RxJava / Kotlin / AutoValue / Android-Proguards Android app dev pro-tips Andrew Chen
2. Android App 的日常 RxJava / Kotlin / AutoValue / Android-Proguards @yongjhih github.com/yongjhih Andrew Chen
3. Andrew Chen @yongjhih github.com/yongjhih
4. λ
5. λ
6. Lambda f(x) = x + 2 λx.x + 2 λ x -> x + 2
7. view.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { System.out.println(v); } }); λ Lambda
8. view.setOnClickListener(v -> { @Override public void onClick(View v) { System.out.println(v); } }); λ Lambda Retrolambda
9. view.setOnClickListener(v -> System.out.println(v)); λ Lambda Retrolambda
10. view.setOnClickListener(System.out::println); λ Lambda Retrolambda
11. view.setOnClickListener { v -> println(v) } λ Lambda Kotlin
12. view.setOnClickListener { println(it) } λ Lambda Kotlin
13. view.setOnClickListener(::println) λ Lambda Kotlin
14. try with resource try { } catch () { } finally { }
15. final StringBuilder sb = new StringBuilder(); String strLine; BufferedReader buffer = null; InputStreamReader reader = null; try { reader = new InputStreamReader(stream); buffer = new BufferedReader(reader); while ((strLine = buffer.readLine()) != null) { sb.append(strLine); } } catch (final IOException ignore) { // ignore } finally { try { if (buffer != null) buffer.close(); if (reader != null) reader.close(); stream.close(); } catch (IOException e) { e.printStackTrace(); } } return sb.toString(); try-with-resource
16. final StringBuilder sb = new StringBuilder(); String strLine; BufferedReader buffer = null; InputStreamReader reader = null; try (final BufferedReader reader = new BufferedReader(new InputStreamReader(stream))) { reader = new InputStreamReader(stream); buffer = new BufferedReader(reader); while ((strLine = buffer.readLine()) != null) { sb.append(strLine); } } catch (final IOException ignore) { // ignore } finally { try { if (buffer != null) buffer.close(); if (reader != null) reader.close(); stream.close(); } catch (IOException e) { e.printStackTrace(); } } return sb.toString(); Retrolambda try-with-resource final StringBuilder sb = new StringBuilder(); String strLine; try (final BufferedReader reader = new BufferedReader(new InputStreamReader(stream))) { while ((strLine = buffer.readLine()) != null) { sb.append(strLine); } } catch (final IOException ignore) { // ignore } return sb.toString();
17. try-with-resource Kotlin return InputStreamReader(stream).use { return BufferedReader(it).use { val sb = StringBuilder() it.forEachLine { sb.append(it) } return sb.toString() } }
18. try-with-resource Kotlin return stream.bufferedReader().use { it.readText() } return InputStreamReader(stream).use { return BufferedReader(it).use { val sb = StringBuilder() it.forEachLine { sb.append(it) } return sb.toString() } } return stream.reader().readText()
19. try-with-resource Kotlin final StringBuilder sb = new StringBuilder(); String strLine; try (final BufferedReader reader = new BufferedReader(new InputStreamReader(stream))) { while ((strLine = buffer.readLine()) != null) { sb.append(strLine); } } catch (final IOException ignore) { // ignore } return sb.toString(); return stream.bufferedReader().use { it.readText() }
20. findView (TextView) findViewById(R.id.text)
21. class MainActivity extends AppCompatActivity { ImageView iconView; TextView titleView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); iconView = (ImageView) findViewById(R.id.icon); titleView = (TextView) findViewById(R.id.title); titleView.setText("Hello, world!"); } } findView
22. class MainActivity extends AppCompatActivity { @BindView(R.id.icon) ImageView iconView; @BindView(R.id.title) TextView titleView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); iconView = (ImageView) findViewById(R.id.icon); titleView = (TextView) findViewById(R.id.title); ButterKnife.bind(this); titleView.setText("Hello, world!"); } } findView ButterKnife class MainActivity extends AppCompatActivity { @BindView(R.id.icon) ImageView iconView; @BindView(R.id.title) TextView titleView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ButterKnife.bind(this); titleView.setText("Hello, world!"); } }
23. class MainActivity : AppCompatActivity { @BindView(R.id.icon) val iconView: ImageView by bindView(R.id.icon) @BindView(R.id.title) val titleView: TextView by bindView(R.id.title) override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) ButterKnife.bind(this) titleView.text = "Hello, world!" } } findView KotterKnife
24. import kotlinx.android.synthetic.main.activity_main.icon import kotlinx.android.synthetic.main.activity_main.title class MainActivity : AppCompatActivity { val iconView: ImageView by bindView(R.id.icon) val titleView: TextView by bindView(R.id.title) override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title.text = "Hello, world!" } } findView Android Extensions
25. import kotlinx.android.synthetic.main.activity_main.* class MainActivity : AppCompatActivity { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) title.text = "Hello, world!" } } findView Android Extensions class MainActivity extends AppCompatActivity { @BindView(R.id.icon) ImageView iconView; @BindView(R.id.title) TextView titleView; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); ButterKnife.bind(this); titleView.setText("Hello, world!"); } }
26. POJO class Model { private String id; getId() {} equals() {} hashCode {} }
27. public class User { @NonNull private final String name; private final int id; public String getName() { return name; } public int getId() { return id; } public User(@NonNull String name, int id) { this.name = name; this.id = id; } // .. @Override public String toString() { return "User{" + "name=" + name + ", id=" + id + "}"; } @Override public boolean equals(Object o) { if (o == this) { return true; } if (o instanceof User) { User that = (User) o; return (this.name.equals(that.getName())) && (this.id == that.getId()); } return false; } @Override int hashCode() { return Objects.hashCode(name, id); } POJO
28. POJO @AutoValue public abstract class User { @NonNull public abstract String name(); public abstract int id(); } AutoValue
29. POJO data class User(val name: String, val age: Int) Kotlin
30. Date Age On This Day Joda-time JSR310 ThreeTen ThreeTenABP
31. Date int getAge() { Date date = new SimpleDateFormat("yyyy-MM-dd").parse("1984-11-19"); return (new Date().getTime() - date.getTime()) / (365 * 24 * 60 * 60 * 1000L); } Date
32. Date int getAge() { Calendar birth = Calendar.getInstance(); birth.setTime( new SimpleDateFormat("yyyy-MM-dd").parse("1984-11-19")); Calendar now = Calendar.getInstance(); int year1 = now.get(Calendar.YEAR); int year2 = birth.get(Calendar.YEAR); int age = year1 - year2; int month1 = now.get(Calendar.MONTH); int month2 = birth.get(Calendar.MONTH); if (month2 > month1) { age--; } else if (month1 == month2) { int day1 = now.get(Calendar.DAY_OF_MONTH); int day2 = birth.get(Calendar.DAY_OF_MONTH); if (day2 > day1) { age--; } } return age; } Calendar
33. Date int getAge() { Years years = Years.yearsBetween(DateTime.parse("1984-11-19"), DateTime.now()); return years.getYears(); } Joda-Time
34. Date int getAge() { return Period.between(LocalDate.parse("1984-11-19"), LocalDate.now()).getYears(); } ThreeTenABP
35. Date fun getAge(): Int { return Period.between(LocalDate.parse("1984-11-19"), LocalDate.now()).years } Kotlin
36. Date fun getAge(): Int { return "1984-11-19".between(now()).years } Kotlin fun String.between(from: LocalDate) = Period.between(LocalDate.parse(this), from)
37. Date fun getAge(): Int { return ("1984-11-19" between now()).years } Kotlin - Bonus infix fun String.between(from: LocalDate) = Period.between(LocalDate.parse(this), from) infix fun String.between(from: String) = between(LocalDate.parse(from))
38. Date fun getAge(): Int { return ("1984-11-19" between "2016-11-19").years } val yesterday = 1.days.ago val yesterday = 1 days ago Kotlin - Bonus
39. Utils PrefsUtils DbUtils
40. SharedPreferences.Editor editor = preferences.edit(); editor.putString("first_name", "Andrew"); editor.putString("last_name", "Chen"); editor.remove("age"); editor.apply(); PrefsUtils
41. SharedPreferencesUtils.from(preferences).apply(editor -> { editor.putString("first_name", "Andrew"); editor.putString("last_name", "Chen"); editor.remove("age"); }); PrefsUtils
42. preferences.edit { putString("first_name", "Andrew") putString("last_name", "Chen") remove("age") } inline fun SharedPreferences.edit( func: SharedPreferences.Editor.() -> Unit) { val editor = edit() editor.func() editor.apply() } PrefsUtils Kotlin
43. db.beginTransaction(); try { db.delete("users", "first_name = ?", new String[] { "Andrew" }); db.delete("users", "first_name = ?", new String[] { "yongjhih" }); db.setTransactionSuccessful(); } finally { db.endTransaction(); } DbUtils
44. Databases.from(db).inTransaction(it -> { it.delete("users", "first_name = ?", new String[] { "Andrew" }) it.delete("users", "first_name = ?", new String[] { "yongjhih" }) }); DbUtils
45. db.inTransation { delete("users", "first_name = ?", arrayOf("Andrew")) delete("users", "first_name = ?", arrayOf("yongjhih")) } inline fun SQLiteDatabase.inTransaction(func: SQLiteDatabase.() -> Unit) { beginTransaction() try { func() setTransactionSuccessful() } finally { endTransaction() } } DbUtils Kotlin
46. Misc for (map) “${k}: {$v}”
47. for (Map.Entry<String, String> entry : map.entrySet()) { System.out.println( entry.getKey() + ": " + entry.getValue()); } for each map
48. for ((key, value) in map) { println("${key}: ${value}") } for each map Kotlin
49. Lazy filter(map(Collection)) Collection.filter().map()
50. Lazy List<Integer> getAgeList(List<User> users) { List<Integer> ageList = new ArrayList<>(); for (User user : users) { ageList.add(user.getAge()); } return ageList; } class User(val age: Int, val gender: Int)
51. Lazy List<Integer> getAgeList(List<User> users) { List<Integer> ageList = new ArrayList<>(); for (User user : users) { ageList.add(user.getAge()); } return ageList; } List<User> getFemaleList(List<User> users) { List<User> femaleList = users; Iterator<User> it = users.iterator(); while (it.hasNext()) { if (it.next().getGender() != User.FEMALE) { it.remove(); } } return femaleList; }
52. Lazy List<Integer> getAgeList(List<User> users) { List<Integer> ageList = new ArrayList<>(); for (User user : users) { ageList.add(user.getAge()); } return ageList; } List<User> getFemaleList(List<User> users) { List<User> femaleList = users; Iterator<User> it = users.iterator(); while (it.hasNext()) { if (it.next().getGender() != User.FEMALE) { it.remove(); } } return femaleList; } List<Integer> getFemaleAgeList(List<User> users) { return getAgeList(getFemaleList(users)); } List<Integer> femageAgeList10 = getFemaleAgeList(users).subList(0, 10);
53. Lazy List<Integer> getAgeList(List<User> users) { List<Integer> ageList = new ArrayList<>(); return new MapList(users, User::getAge); for (User user : users) { ageList.add(user.getAge()); } return ageList; } List<User> getFemaleList(List<User> users) { List<User> femaleList = users; Iterator<User> it = users.iterator(); while (it.hasNext()) { if (it.next().getGender() != User.FEMALE) { it.remove(); } } return femaleList; } List<Integer> getFemaleAgeList(List<User> users) { return getAgeList(getFemaleList(users)); } class MapList<T, R> extends ArrayList<R> { // lazy Function<T, R> function; List<T> list; List<R> cache; // TODO MapList(List<T> list, Function<T, R> function) { // .. } @Override public T get(int index) { return function.apply(list.get(index)); } // .. }
54. Lazy List<Integer> getAgeList(List<User> users) { return new MapList(users, User::getAge); } List<User> getFemaleList(List<User> users) { List<User> femaleList = users; return new FilterList(users, user -> user.getGender() != User.FEMALE); while (it.hasNext()) { if (it.next().getGender() != User.FEMALE) { it.remove(); } } return femaleList; } List<Integer> getFemaleAgeList(List<User> users) { return getAgeList(getFemaleList(users)); } class FilterList<T> extends ArrayList<T> { // lazy Predicate<T> predicate; List<T> list; List<T> cache; listIterator<T> it; int index = 0; FilterList(List<T> list, Predicate<T> predicate) { this.it = list.listIterator(); // .. } // .. @Override public T get(int index) { if (this.index < index) { while (it.hasNext()) { T item = it.next(); if (predicate.test(item)) { cache.add(item); this.index++; } if (this.index >= index) return cache.get(index); } } else { return cache.get(index); } throw new IllegalArgumentException(); } }
55. Lazy List<Integer> getAgeList(List<User> users) { return new MapList(users, User::getAge); } List<User> getFemaleList(List<User> users) { return new FilterList(users, user -> user.getGender() != User.FEMALE); } List<Integer> getFemaleAgeList(List<User> users) { return getAgeList(getFemaleList(users)); } List<Integer> femageAgeList10 = getFemaleAgeList(users).subList(0, 10);
56. Lazy Observable<Integer> getAgeList(Observable<User> users) { return users.map(User::getAge); } Observable<User> getFemaleList(Observable<User> users) { return users.filter(user -> user.getGender() != User.FEMALE); } Observable<Integer> getFemaleAgeList(Observable<User> users) { return getAgeList(getFemaleList(users)); } Observable<Integer> femageAgeList10 = getFemaleAgeList(users).take(10); RxJava
57. Lazy Sequence<Integer> getAgeList(Sequence<User> users) { return users.map(User::getAge) } Sequence<User> getFemaleList(Sequence<User> users) { return users.filter { it.getGender() != User.FEMALE } } Sequence<Integer> getFemaleAgeList(Sequence<User> users) { return getAgeList(getFemaleList(users)) } Sequence<Integer> femageAgeList10 = getFemaleAgeList(users).take(10) Kotlin
58. Unique Merge Map.put();
59. distinct List<User> getPostedUsers(List<Post> posts) { Map<String, User> users = new ArrayMap<>(); for (Post post : posts) { User user = post.getUser(); users.put(user.getObjectId(), user); } return new ArrayList<>(users.values()); }
60. distinct Observable<User> getPostedUsers(Observable<Post> posts) { return posts .map(post -> post.getUser()) .distinct(user -> user.getObjectId()); RxJava
61. merge List<User> getActivityUsers(List<Post> posts, List<Comment> comments) { Map<String, User> users = new ArrayMap<>(); for (Post post : posts) { User user = post.getUser(); users.put(user.getObjectId(), user); } for (Comment comment : comments) { User user = comment.getUser(); users.put(user.getObjectId(), user); } return new ArrayList<>(users.values()); } RxJava
62. merge Observable<User> getActivityUsers(Observable<Post> posts, Observable<Comment> comments) { return Observable.merge( posts.map(post -> post.getUser()), comments.map(comment -> comment.getUser()) ) .distinct(user -> user.getObjectId()); } RxJava
63. Callback { { { { { } } } } }
64. Callback Hell void login(Activity activity, LoginListenr loginListener) { loginFacebook(activity, fbUser -> { getFbProfile(fbUser, fbProfile -> { loginParse(fbProfile, parseUser -> { getParseProfile(fbProfile, parseProfile -> { loginListener.onLogin(parseProfile); }); }); }); }); }
65. Callback Hell RxJava Observable<FbUser> loginFacebook(Activity activity) { return Observable.create(sub -> { loginFacebook(activity, (fbUser, e) -> { if (sub.isUnsubscribed()) return; if (e != null) { sub.onError(e); return; } sub.onNext(fbUser); sub.onCompleted(); }); }); } Observable<FbProfile> getFbProfile(FbUser fbUser) { // .. } Observable<ParseUser> loginParse(FbProfile fbProfile) { // .. } Observable<ParseProfile> getParseProfile(ParseUser parseUser) { // .. } void login(Activity activity, LoginListener loginListener) { Observable.just(activity) .flatMap(activity -> loginFacebook(activity)) .flatMap(fbUser -> getFbProfile(fbUser)) .flatMap(fbProfile -> loginParse(fbProfile)) .flatMap(parseUser -> getParseProfile(parseUser)) .subscribe(loginListener::onLogin); }
66. NET API Request(url).on(json -> Json.parse(json, clazz));
67. void getRepos(String user, final Callback<Repo> callback) { String url = "https://api.github.com/" + "users/" + user + "/repos"; Volley.newRequestQueue(context) .add(new StringRequest(url, res -> { callback.done((List<Repo>) new Gson() .fromJson(res, new TypeToken<List<Repo>>(){}.getType())); }), e -> callback.error(e))); } API Volley
68. void getRepos(String user, final Callback<Repo> callback) { String url = "https://api.github.com/" + "users/" + user + "/repos"; Volley.newRequestQueue(context) .add(new StringRequest(url, res -> { callback.done((List<Repo>) new Gson() .fromJson(res, new TypeToken<List<Repo>>(){}.getType())); }), e -> callback.error(e))); } void getStarredUsers(String repo, final Callback<User> callback)? API Volley
69. void getRepos(String user, final Callback<Repo> callback) { String url = "https://api.github.com/" + "users/" + user + "/repos"; get(url, callback); } <T> void get(final Callback<T>) { Volley.newRequestQueue(context) .add(new StringRequest(url, res -> { callback.done((List<T>) new Gson() .fromJson(res, new TypeToken<List<T>>(){}.getType())); }), e -> callback.error(e))); } void getStarredUsers(String repo, final Callback<User> callback) { API Volley
70. void getRepos(String user, final Callback<Repo> callback) { String url = "https://api.github.com/" + "users/" + user + "/repos"; get(url, callback); } <T> void get(final Callback<T>) { Volley.newRequestQueue(context) .add(new StringRequest(url, res -> { callback.done((List<T>) new Gson() .fromJson(res, new TypeToken<List<T>>(){}.getType())); }), e -> callback.error(e))); } void getStarredUsers(String repo, final Callback<User> callback) { String url = "https://api.github.com/" + "repos/" + repo + "/stargazers"; get(url, callback); } API Volley
71. public interface GitHub { @GET("users/{user}/repos") void getRepos(@Path("user") String user, Callback<List<Repo>> repos); } Retrofit retrofit = new Retrofit.Builder() .baseUrl("https://api.github.com/") .build(); GitHub github = retrofit.create(GitHub.class); github.getRepos("yongjhih", new SimpleCallback(repos -> {}, e -> {})); API Retrofit
72. public interface GitHub { @GET("users/{user}/repos") void getRepos(@Path("user") String user, Callback<List<Repo>> repos); @GET("repos/{repo}/stargazers") void getStarredUsers(@Path("repo") String repo, Callback<List<User>> users); } Retrofit retrofit = new Retrofit.Builder() .baseUrl("https://api.github.com/") .build(); GitHub github = retrofit.create(GitHub.class); github.getRepos("yongjhih", new SimpleCallback(repos -> {}, e -> {})); github.getStarredUsers("yongjhih/android-proguards", new SimpleCallback(repos -> {}, e -> {})); API Retrofit
73. public interface GitHub { @GET("users/{user}/repos") Observable<List<Repo>> getRepos(@Path("user") String user, Callback<Repo> repos); @GET("repos/{repo}/stargazers") Observable<List<Repo>> getStarredUsers(@Path("repo") String repo, Callback<User> users); } Retrofit retrofit = new Retrofit.Builder() .baseUrl("https://api.github.com/") .build(); GitHub github = retrofit.create(GitHub.class); github.getRepos("yongjhih") .subscribe(repos -> {}, e -> {}); github.getStarredUsers("yongjhih/android-proguards") .subscribe(users -> {}, e -> {}); API Retrofit + RxJava
74. Null NPE(NullPointerException) @Nullable @NonNull
75. String name; System.out.println(name.length()); // NPE risk NonNull
76. String name; if (name != null) System.out.println(name.length()); NonNull
77. @NonNull String name; if (name != null) System.out.println(name.length()); NonNull
78. @NonNull var name: String System.out.println(name.length()); NonNull Kotlin
79. String version = "UNKNOWN"; if (computer != null) { Soundcard soundcard = computer.getSoundcard(); if (soundcard != null) { USB usb = soundcard.getUSB(); if (usb != null) { version = usb.getVersion(); } } } Null check class USB { String getVersion() {} } class Soundcard { USB getUsb() {} } class Computer { Soundcard getSoundcard() {} }
80. String version = computer.getSoundcard() .flatMap(Soundcard::getUsb) .map(USB::getVersion) .orElse("UNKNOWN"); Null check class USB { Optional<String> getVersion() {} } class Soundcard { Optional<USB> getUsb() {} } class Computer { Optional<Soundcard> getSoundcard() {} }
81. String version = computer.getSoundcard() .flatMap(Soundcard::getUsb) .map(USB::getVersion) .toBlocking() .singleOrDefault("UNKNOWN"); // IllegalArgumentException if second emit Null check RxJava1 class USB { Observable<String> getVersion() {} } class Soundcard { Observable<USB> getUsb() {} } class Computer { Observable<Soundcard> getSoundcard() {} }
82. String version = computer.getSoundcard() .flatMap(Soundcard::getUsb) .map(USB::getVersion) .single("UNKNOWN") // IAE if second emit .blockingGet() Null check RxJava2
83. String version = computer.getSoundcard() .flatMap(Soundcard::getUsb) .map(USB::getVersion) .toSingle("UNKNOWN") .blockingGet() Null check class USB { Maybe<String> getVersion() {} } class Soundcard { Maybe<USB> getUsb() {} } class Computer { Maybe<Soundcard> getSoundcard() {} } RxJava2
84. var version = computer.soundcard?.usb?.version ?: "UNKNOWN" Null check Kotlin class USB (val version: String) class Soundcard (val usb: USB?) class Computer (val soundcard: Soundcard?)
85. Lazy Member if (m == null) m = new Object() return m;
86. class ProfileFragment extends Fragment { // .. ImageView mAvatarView; public ImageView getAvatarView() { if (mAvatarView == null) { mAvatarView = (ImageView) v.findViewById(R.id.avatar); } return mAvatarView; } } Lazy member
87. class ProfileFragment extends Fragment { // .. val avatarView: ImageView by lazy { public ImageView getAvatarView() { if (mAvatarView == null) { mAvatarView = v.findViewById(R.id.avatar) as ImageView } return mAvatarView; } } profileFragment.avatarView.setImageResource(R.drawable.icon) Lazy member Kotlin
88. Proguard -dontwarn * -keep *
89. app/proguard-rules.pro: ## RxJava1 -dontwarn sun.misc.** -keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* { long producerIndex; long consumerIndex; } # .. ## Dagger # .. ## retrofit # .. # Icepick -dontwarn icepick.** -keep class **$$Icicle { *; } -keepnames class * { @icepick.Icicle *;} Proguards build.gradle: proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
90. app/proguard-rules.pro: app/rxjava.pro: -dontwarn sun.misc.** -keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* { long producerIndex; long consumerIndex; } # .. app/dagger.pro: # .. ## retrofit app/retrofit.pro: ## Icepick app/icepick.pro: ## .. Proguards build.gradle: proguardFiles getDefaultProguardFile('proguard-android.txt'), 'dagger.pro', 'retrofit.pro', 'icepick.pro', ...
91. Proguards build.gradle: proguardFiles getDefaultProguardFile('proguard-android.txt'), fileTree(include: ['*.pro'], dir: '.') app/proguard-rules.pro: app/rxjava.pro: -dontwarn sun.misc.** -keepclassmembers class rx.internal.util.unsafe.*ArrayQueue*Field* { long producerIndex; long consumerIndex; } # .. app/dagger.pro: # .. ## retrofit app/retrofit.pro: ## Icepick app/icepick.pro: ## ..
92. build.gradle: compile 'com.github.yongjhih.android-proguards:android-proguards:-SNAPSHOT' Proguards android-proguards
93. Trends
94. 2014/9 Trello 2016/11 2.0
95. 2015/1 Square 2016/2 1.0 2014/8 AW
96. Patch
98. Thank you