UnusedImports fix (#112)

* Gradle update

* Excluding apache.httpcomponents

build.gradle

@@ -1,9 +1,7 @@
 apply plugin: 'com.android.library'
-apply plugin: 'me.tatarka.retrolambda'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.3"
+    compileSdkVersion compileSdk
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
@@ -17,37 +15,40 @@ android {
 
 repositories {
     maven { url 'https://maven.fabric.io/public' }
+    maven { url "http://dl.bintray.com/touchin/touchin-tools" }
 }
 
 dependencies {
-    compile project(path: ':libraries:components')
+    api project(path: ':libraries:components')
 
-    compile 'net.danlew:android.joda:2.9.9'
-    compile 'com.android.support:multidex:1.0.1'
-    compile 'io.reactivex:rxandroid:1.2.1'
-    compile 'io.reactivex:rxjava:1.3.0'
+    api 'net.danlew:android.joda:2.9.9'
+    api 'com.android.support:multidex:1.0.2'
+    api "io.reactivex:rxandroid:$rxAndroidVersion"
+    api "io.reactivex:rxjava:$rxJavaVersion"
 
-    provided 'com.android.support:appcompat-v7:25.3.1'
-    provided 'com.android.support:recyclerview-v7:25.3.1'
+    compileOnly "com.android.support:appcompat-v7:$supportLibraryVersion"
+    compileOnly "com.android.support:recyclerview-v7:$supportLibraryVersion"
 
-    provided 'com.squareup.retrofit2:retrofit:2.3.0'
-    provided('com.google.http-client:google-http-client-jackson2:1.22.0') {
+    compileOnly 'com.squareup.retrofit2:retrofit:2.3.0'
+    compileOnly('com.google.http-client:google-http-client-jackson2:1.23.0') {
         exclude(group: 'org.apache.httpcomponents', module: 'httpclient')
     }
 
-    provided 'com.facebook.fresco:fresco:1.3.0'
-    provided 'com.bluelinelabs:logansquare:1.3.7'
+    compileOnly 'com.facebook.fresco:fresco:1.5.0'
+    compileOnly 'ru.touchin:logansquare:1.4.1'
 
-    provided 'com.scottyab:aes-crypto:0.0.4'
+    compileOnly 'com.scottyab:aes-crypto:0.0.4'
 
-    provided('io.socket:socket.io-client:0.9.0') {
+    // don't use latest(1.0 and above)  because they don't support Socket.IO server 1.x version
+    //noinspection NewerVersionAvailable
+    compileOnly('io.socket:socket.io-client:0.9.0') {
         exclude group: 'org.json', module: 'json'
     }
 
-    provided('com.crashlytics.sdk.android:crashlytics:2.6.8@aar') {
-        transitive = true;
+    compileOnly('com.crashlytics.sdk.android:crashlytics:2.6.8@aar') {
+        transitive = true
     }
 
-    provided 'com.facebook.stetho:stetho:1.5.0'
+    compileOnly 'com.facebook.stetho:stetho:1.5.0'
 
 }

src/main/java/ru/touchin/templates/TouchinActivity.java

@@ -21,7 +21,7 @@ package ru.touchin.templates;
 
 import android.app.ActivityManager;
 import android.content.Intent;
-import android.graphics.drawable.BitmapDrawable;
+import android.graphics.BitmapFactory;
 import android.os.Build;
 import android.os.Bundle;
 import android.support.annotation.ColorRes;
@@ -62,9 +62,14 @@ public abstract class TouchinActivity<TLogic extends Logic> extends ViewControll
      * @param primaryColorRes Color of application to show in task bar.
      */
     protected void setupTaskDescriptor(@NonNull final String label, @DrawableRes final int iconRes, @ColorRes final int primaryColorRes) {
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
             final ActivityManager.TaskDescription taskDescription = new ActivityManager.TaskDescription(label,
-                    ((BitmapDrawable) ContextCompat.getDrawable(this, iconRes)).getBitmap(),
+                    iconRes,
+                    ContextCompat.getColor(this, primaryColorRes));
+            setTaskDescription(taskDescription);
+        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
+            final ActivityManager.TaskDescription taskDescription = new ActivityManager.TaskDescription(label,
+                    BitmapFactory.decodeResource(getResources(), iconRes),
                     ContextCompat.getColor(this, primaryColorRes));
             setTaskDescription(taskDescription);
         }

src/main/java/ru/touchin/templates/calendar/CalendarUtils.java

@@ -59,7 +59,7 @@ public final class CalendarUtils {
      * @param calendarItems List of {@link CalendarItem} where need to find specific element;
      * @param position      Position of adapter;
      * @return Position of Header that respond to requested position.
-     *     Returns null if Header or related CalendarItem was not found for specified position.
+     * Returns null if Header or related CalendarItem was not found for specified position.
      */
     @Nullable
     public static Integer findPositionOfSelectedMonth(@NonNull final List<CalendarItem> calendarItems, final long position) {
@@ -76,7 +76,7 @@ public final class CalendarUtils {
      * @param calendarItems List of {@link CalendarItem} where need to find specific element;
      * @param date          Requested date in milliseconds.
      * @return Position of Calendar cell that that has specific date.
-     *     Returns null if CalendarItem was not found for specified position.
+     * Returns null if CalendarItem was not found for specified position.
      */
     @Nullable
     public static Integer findPositionByDate(@NonNull final List<CalendarItem> calendarItems, final long date) {

src/main/java/ru/touchin/templates/chat/Chat.java

@@ -168,6 +168,14 @@ public abstract class Chat<TOutgoingMessage> {
         retrySendingRequest.onNext(null);
     }
 
+    /**
+     * Method to cancel sending current message.
+     */
+    @NonNull
+    public Observable<?> observeCancelEvent(@NonNull final TOutgoingMessage message) {
+        return Observable.never();
+    }
+
     /**
      * Deactivates chat so it will stop sending messages.
      */
@@ -194,6 +202,7 @@ public abstract class Chat<TOutgoingMessage> {
                                 .first()
                                 .switchMap(shouldSendMessage -> shouldSendMessage
                                         ? createSendMessageObservable(message).ignoreElements() : Observable.empty())
+                                .takeUntil(observeCancelEvent(message))
                                 .retryWhen(attempts -> attempts.switchMap(ignored -> {
                                     isSendingInError.onNext(true);
                                     return Observable

src/main/java/ru/touchin/templates/logansquare/LoganSquareJodaTimeConverter.java

@@ -42,7 +42,7 @@ public class LoganSquareJodaTimeConverter implements TypeConverter<DateTime> {
     @Override
     public DateTime parse(@NonNull final JsonParser jsonParser) throws IOException {
         final String dateString = jsonParser.getValueAsString();
-        if (dateString == null) {
+        if (dateString == null || dateString.isEmpty()) {
             return null;
         }
         try {
@@ -60,9 +60,9 @@ public class LoganSquareJodaTimeConverter implements TypeConverter<DateTime> {
                           @NonNull final JsonGenerator jsonGenerator)
             throws IOException {
         if (fieldName != null) {
-            jsonGenerator.writeStringField(fieldName, object != null ? object.toString() : null);
+            jsonGenerator.writeStringField(fieldName, object != null && !object.toString().isEmpty() ? object.toString() : null);
         } else {
-            jsonGenerator.writeString(object != null ? object.toString() : null);
+            jsonGenerator.writeString(object != null && !object.toString().isEmpty() ? object.toString() : null);
         }
     }
 

src/main/java/ru/touchin/templates/logansquare/LoganSquareJsonFactory.java

@@ -20,13 +20,15 @@
 package ru.touchin.templates.logansquare;
 
 import android.support.annotation.NonNull;
+import android.support.annotation.Nullable;
 
 import com.bluelinelabs.logansquare.ConverterUtils;
 import com.bluelinelabs.logansquare.LoganSquare;
-import com.google.api.client.json.jackson2.JacksonFactory;
+import com.fasterxml.jackson.core.JsonGenerator;
 
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
+import java.io.StringWriter;
 import java.lang.annotation.Annotation;
 import java.lang.reflect.ParameterizedType;
 import java.lang.reflect.Type;
@@ -42,7 +44,7 @@ import ru.touchin.templates.retrofit.JsonResponseBodyConverter;
 
 /**
  * Created by Gavriil Sitnikov on 2/06/2016.
- * LoganSquareConverter class to use with {@link Retrofit} to parse and generate models based on Google Jackson library {@link JacksonFactory}.
+ * LoganSquareConverter class to use with {@link Retrofit} to parse and generate models based on Logan Square library.
  */
 public class LoganSquareJsonFactory extends Converter.Factory {
 
@@ -63,6 +65,16 @@ public class LoganSquareJsonFactory extends Converter.Factory {
         return new LoganSquareRequestBodyConverter<>();
     }
 
+    @Nullable
+    @Override
+    public Converter<?, String> stringConverter(@NonNull final Type type, @NonNull final Annotation[] annotations, @NonNull final Retrofit retrofit) {
+        if (type instanceof Class && ((Class) type).getSuperclass() == Enum.class) {
+            return new LoganSquareStringEnumConverter<>();
+        } else {
+            return super.stringConverter(type, annotations, retrofit);
+        }
+    }
+
     public static class LoganSquareJsonResponseBodyConverter<T> extends JsonResponseBodyConverter<T> {
 
         @NonNull
@@ -101,11 +113,29 @@ public class LoganSquareJsonFactory extends Converter.Factory {
     public static class LoganSquareRequestBodyConverter<T> extends JsonRequestBodyConverter<T> {
 
         @Override
-        protected void writeValueToByteArray(@NonNull final T value, @NonNull final ByteArrayOutputStream byteArrayOutputStream)
-                throws IOException {
+        protected void writeValueToByteArray(@NonNull final T value, @NonNull final ByteArrayOutputStream byteArrayOutputStream) throws IOException {
             LoganSquare.serialize(value, byteArrayOutputStream);
         }
 
     }
 
-}
+    public static class LoganSquareStringEnumConverter<T> implements Converter<T, String> {
+
+        @Nullable
+        @SuppressWarnings({"unchecked", "TryFinallyCanBeTryWithResources"})
+        @Override
+        public String convert(@NonNull final T value) throws IOException {
+            final StringWriter writer = new StringWriter();
+            try {
+                final JsonGenerator generator = LoganSquare.JSON_FACTORY.createGenerator(writer);
+                LoganSquare.typeConverterFor((Class<T>) value.getClass()).serialize(value, null, false, generator);
+                generator.close();
+                return writer.toString().replaceAll("\"", "");
+            } finally {
+                writer.close();
+            }
+        }
+
+    }
+
+}

src/main/java/ru/touchin/templates/retrofit/JsonResponseBodyConverter.java

@@ -70,7 +70,7 @@ public abstract class JsonResponseBodyConverter<T> implements Converter<Response
             validateCollection((Collection) result);
         }
         if (result instanceof Map) {
-            validateCollection(((Map)result).values());
+            validateCollection(((Map) result).values());
         }
 
         return result;

src/main/java/ru/touchin/templates/validation/ValidationState.java

@@ -59,6 +59,7 @@ public class ValidationState implements Serializable {
 
     /**
      * Returns unique code of the {@link ValidationState}.
+     *
      * @return code or the ValidationState.
      */
     public int getCode() {
@@ -67,6 +68,7 @@ public class ValidationState implements Serializable {
 
     /**
      * Don't forget to override this method!
+     *
      * @param object that you want to compare.
      * @return true if objects equals and false otherwise.
      */

src/main/java/ru/touchin/templates/validation/ViewWithError.java

@@ -38,6 +38,7 @@ public interface ViewWithError {
      * Shows error
      * Pass here error state.
      * It is not correct to pass here {@link ValidationState#VALID} or {@link ValidationState#INITIAL}
+     *
      * @param validationState error state. Can be other than {@link ValidationState} if you have successor of base {@link ValidationState}.
      */
     void showError(@NonNull final ValidationState validationState);

src/main/java/ru/touchin/templates/validation/validationcontrollers/BooleanValidationController.java

@@ -37,6 +37,7 @@ public class BooleanValidationController extends ValidationController<Boolean, B
 
     /**
      * This method validates bounded view.
+     *
      * @param activatedObservable emits true when we need to show error on empty fields. Eg when user clicks on Done button but he missed some
      *                            necessary fields to fill.
      * @return observable without any concrete type. Simply subscribe to this method to make it works.

src/main/java/ru/touchin/templates/validation/validationcontrollers/EditTextValidationController.java

@@ -98,8 +98,7 @@ public class EditTextValidationController<TModel extends Serializable>
     /**
      * If we don't want to show error when focus is lost.
      *
-     * @param showErrorOnFocusOut  show an error or don't show an error. 
-     *
+     * @param showErrorOnFocusOut show an error or don't show an error.
      */
     public void setShowErrorOnFocusOut(final boolean showErrorOnFocusOut) {
         this.showErrorOnFocusOut = showErrorOnFocusOut;

src/main/java/ru/touchin/templates/validation/validationcontrollers/SimpleValidationController.java

@@ -12,7 +12,8 @@ import rx.Observable;
  * Created by Ilia Kurtov on 24/01/2017.
  * {@link ValidationController} for models that have the same modal as wrapper model. You can use it when you simply need to be sure
  * that user have selected some item and it is not null.
- * @param <TModel> type of the model.
+ *
+ * @param <TModel>     type of the model.
  * @param <TValidator> corresponding {@link Validator}
  */
 public class SimpleValidationController<TModel extends Serializable, TValidator extends Validator<TModel, TModel>>
@@ -24,6 +25,7 @@ public class SimpleValidationController<TModel extends Serializable, TValidator
 
     /**
      * This method validates bounded view.
+     *
      * @param activatedObservable emits true when we need to show error on empty fields. Eg when user clicks on Done button but he missed some
      *                            necessary fields to fill.
      * @return observable without any concrete type. Simply subscribe to this method to make it works.

src/main/java/ru/touchin/templates/validation/validationcontrollers/ValidationController.java

@@ -53,10 +53,11 @@ public class ValidationController
     /**
      * Bind to this observable to connect view and model. If you provide first argument (viewStateObservable) - the connection would be two-way.
      * If not - one-way. This method changes updates view with current {@link ValidationState}.
+     *
      * @param viewStateObservable input view state {@link Observable}.
      *                            Eg it can be observable with input text from the {@link android.widget.EditText}
-     * @param updateViewAction action that updates current state of the bounded view.
-     * @param viewWithError view that implements {@link ViewWithError} interface and could reacts to the validation errors.
+     * @param updateViewAction    action that updates current state of the bounded view.
+     * @param viewWithError       view that implements {@link ViewWithError} interface and could reacts to the validation errors.
      * @return observable without any concrete type. Simply subscribe to this method to make it works.
      */
     @NonNull
@@ -68,7 +69,7 @@ public class ValidationController
                 : Observable.empty();
         return Observable
                 .merge(getValidator().getWrapperModel().observe()
-                        .observeOn(AndroidSchedulers.mainThread())
+                                .observeOn(AndroidSchedulers.mainThread())
                                 .doOnNext(updateViewAction),
                         getValidator().getValidationState().observe()
                                 .observeOn(AndroidSchedulers.mainThread())
@@ -84,6 +85,7 @@ public class ValidationController
 
     /**
      * Helper function to check if validation state in error state ot not
+     *
      * @param validationState the state you want to check for the errors.
      * @return true if validation state is in error and false otherwise.
      */

src/main/java/ru/touchin/templates/validation/validators/EditTextValidator.java

@@ -51,6 +51,7 @@ public abstract class EditTextValidator<TModel extends Serializable> extends Val
      * This flag needed to force showing errors. You don't want to show final error when you start to enter data in some field at first time.
      * But if user leaves this view and final check not passed - you need to force to show an error till user not enters correct data and leaves
      * the view.
+     *
      * @return {@link NonNullChangeable} with current state of the flag - do we need to show errors from final checks while user types.
      */
     @NonNull
@@ -60,6 +61,7 @@ public abstract class EditTextValidator<TModel extends Serializable> extends Val
 
     /**
      * Use this method to get or set final check.
+     *
      * @return final check.
      */
     @NonNull
@@ -69,6 +71,7 @@ public abstract class EditTextValidator<TModel extends Serializable> extends Val
 
     /**
      * Use this method to get or set primary check.
+     *
      * @return primary check.
      */
     @NonNull
@@ -119,6 +122,7 @@ public abstract class EditTextValidator<TModel extends Serializable> extends Val
 
     /**
      * Validates text with primary check.
+     *
      * @param text - input text.
      * @return {@link Observable} with the result of the primary check.
      */
@@ -129,6 +133,7 @@ public abstract class EditTextValidator<TModel extends Serializable> extends Val
 
     /**
      * Validates text with final check.
+     *
      * @param text - input text.
      * @return {@link Observable} with the result of the final check.
      */
@@ -140,9 +145,10 @@ public abstract class EditTextValidator<TModel extends Serializable> extends Val
     /**
      * Validates text with primary and final check consequentially and returns {@link Observable} with {@link HalfNullablePair} of final state
      * and resulting model.
+     *
      * @param text - input text.
      * @return pair with final {@link ValidationState} that is always not null and a model that we get after converting the text.
-     *         Model can be null if validation fails on primary or final checks.
+     * Model can be null if validation fails on primary or final checks.
      */
     @NonNull
     @Override

src/main/java/ru/touchin/templates/validation/validators/SameTypeValidator.java

@@ -12,12 +12,14 @@ import rx.Observable;
 /**
  * Created by Ilia Kurtov on 24/01/2017.
  * Class that simplifies work with {@link Validator}'s that have the same wrapper model and model type.
+ *
  * @param <TModel> model that should be bounded with a view.
  */
 public class SameTypeValidator<TModel extends Serializable> extends Validator<TModel, TModel> {
 
     /**
      * Simply returns the same model without any converting.
+     *
      * @param wrapperModel input model.
      * @return the same model as input parameter.
      * @throws Throwable - in this case no throwable would be thrown.
@@ -31,9 +33,10 @@ public class SameTypeValidator<TModel extends Serializable> extends Validator<TM
 
     /**
      * Validates {@link TModel} and returns {@link Observable} with {@link HalfNullablePair} of final state and resulting model.
+     *
      * @param wrapperModel - not null value that should be validated.
      * @return pair with final {@link ValidationState} that is always not null and a model that we get after converting the {@link TModel}.
-     *         Model can be null if validation fails.
+     * Model can be null if validation fails.
      */
     @NonNull
     @Override

src/main/java/ru/touchin/templates/validation/validators/Validator.java

@@ -54,6 +54,7 @@ public abstract class Validator<TWrapperModel extends Serializable, TModel exten
 
     /**
      * This method converts {@link TWrapperModel} into a {@link TModel}.
+     *
      * @param wrapperModel - not null value that should be converted into a {@link TModel} object.
      * @return converted wrapperModel into a {@link TModel}.
      * @throws Throwable for the cases when converting cannot be processed.
@@ -63,6 +64,7 @@ public abstract class Validator<TWrapperModel extends Serializable, TModel exten
 
     /**
      * Call this method to get {@link Changeable} with {@link TWrapperModel} inside it that should be connected to its bounded view.
+     *
      * @return {@link Changeable} with {@link TWrapperModel}.
      */
     @NonNull
@@ -72,6 +74,7 @@ public abstract class Validator<TWrapperModel extends Serializable, TModel exten
 
     /**
      * Returns current {@link ValidationState} or its successor. Needed to connect with bounded view and react to this state changes.
+     *
      * @return current validation state.
      */
     @NonNull
@@ -82,6 +85,7 @@ public abstract class Validator<TWrapperModel extends Serializable, TModel exten
     /**
      * This method needed to get {@link ValidationState} that needed to be shown when bounded view is empty and you need to show to user reminder,
      * that he or she needs to fill this view.
+     *
      * @return {@link ValidationState} that should be shown for an empty field.
      */
     @NonNull
@@ -91,9 +95,10 @@ public abstract class Validator<TWrapperModel extends Serializable, TModel exten
 
     /**
      * Validates {@link TWrapperModel} and returns {@link Observable} with {@link HalfNullablePair} of final state and resulting model.
+     *
      * @param wrapperModel - not null value that should be validated.
      * @return pair with final {@link ValidationState} that is always not null and a model that we get after converting the {@link TWrapperModel}.
-     *         Model can be null if validation fails.
+     * Model can be null if validation fails.
      */
     @NonNull
     public abstract Observable<HalfNullablePair<ValidationState, TModel>> fullValidateAndGetModel(@NonNull final TWrapperModel wrapperModel);