Cleveroad · VadimHalimendikCr · Nov 19, 2018 · Nov 14, 2018
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -6,6 +6,7 @@
 
 Version | Changes
 ---     | ---
+v.1.0.9 | <ul><li>Fixed issue #65 https://github.com/Cleveroad/SlidingTutorial-Android/issues/65</li><li>Scrolling in one direction. Added flag for rollback?</li></ul>
 v.1.0.8 | Fixed issue with NullPointerException with addOnTutorialPageChangeListener() called before onCreate()
 v.1.0.7 | <ul><li>Fixed import for SupportTutorialFragment</li><li>Updated versions of dependencies</li></ul>
 v.1.0.6 | <ul><li>Added new simple way of creation of tutorial</li><li>Fixed memory leaks issues</li><li>Updated default sizes of page indicator's elements</li><li>Updated default colors of page indicator</li><li>Updated versions of dependencies</li><li>Removed unused or unnecessary methods</li></ul>

diff --git a/README.md b/README.md
@@ -28,6 +28,14 @@ All you need to do is:
 
 ## Full Documentation
 
+## Setup
+To include this library to your project add dependency in **build.gradle** file:
+```groovy
+    dependencies {
+        implementation "com.cleveroad:slidingtutorial:1.0.9"
+    }
+```
+
 [Quick Start]
 
 * [Configure your tutorial with TutorialOptions]

diff --git a/build.gradle b/build.gradle
@@ -1,11 +1,18 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext.junit_version = '4.12'
+    ext.support_version = '28.0.0'
+    ext.constraint_layout_version = '1.1.3'
+    ext.leakcanary_version = '1.5.4'
+    ext.tools_build_gradle_version = '3.1.3'
+
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.3.0'
+        classpath "com.android.tools.build:gradle:$tools_build_gradle_version"
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
     }
@@ -14,5 +21,6 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        google()
     }
-}
+}
diff --git a/gradle.properties b/gradle.properties
@@ -1,5 +1,5 @@
-VERSION_NAME=1.0.8
-VERSION_CODE=18
+VERSION_NAME=1.0.9
+VERSION_CODE=19
 GROUP=com.cleveroad
 
 POM_DESCRIPTION=Sliding tutorial is simple library that help other developers easy create great tutotial

diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Wed Nov 14 13:57:01 EET 2018
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.6-all.zip
diff --git a/lib/build.gradle b/lib/build.gradle
@@ -1,14 +1,13 @@
 apply plugin: 'com.android.library'
 
 android {
-    compileSdkVersion 25
-    buildToolsVersion "25.0.2"
+    compileSdkVersion 28
 
     defaultConfig {
-        minSdkVersion 14
-        targetSdkVersion 25
-        versionCode 18
-        versionName "1.0.8"
+        minSdkVersion 15
+        targetSdkVersion 28
+        versionCode 19
+        versionName "1.0.9"
     }
     buildTypes {
         release {
@@ -21,8 +20,10 @@ android {
 }
 
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:support-v4:25.3.1'
+    final support_version = '28.0.0'
+
+    implementation fileTree(dir: 'libs', include: ['*.jar'])
+    implementation "com.android.support:support-v4:$support_version"
 }
 
 apply from: './gradle-mvn-push.gradle'
diff --git a/lib/src/main/AndroidManifest.xml b/lib/src/main/AndroidManifest.xml
@@ -1,2 +1 @@
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    package="com.cleveroad.slidingtutorial"/>
+<manifest package="com.cleveroad.slidingtutorial" />
diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/FragmentPagerAdapter.java b/lib/src/main/java/com/cleveroad/slidingtutorial/FragmentPagerAdapter.java
@@ -29,6 +29,7 @@
 import android.app.FragmentTransaction;
 import android.os.Build;
 import android.os.Parcelable;
+import android.support.annotation.NonNull;
 import android.support.v4.view.PagerAdapter;
 import android.util.Log;
 import android.view.View;
@@ -71,16 +72,17 @@ abstract class FragmentPagerAdapter extends PagerAdapter {
     public abstract Fragment getItem(int position);
 
     @Override
-    public void startUpdate(ViewGroup container) {
+    public void startUpdate(@NonNull ViewGroup container) {
         if (container.getId() == View.NO_ID) {
             throw new IllegalStateException("ViewPager with adapter " + this
                     + " requires a view id");
         }
     }
 
+    @NonNull
     @SuppressLint("CommitTransaction")
     @Override
-    public Object instantiateItem(ViewGroup container, int position) {
+    public Object instantiateItem(@NonNull ViewGroup container, int position) {
         if (mCurTransaction == null) {
             mCurTransaction = mFragmentManager.beginTransaction();
         }
@@ -115,7 +117,7 @@ private void setUserVisibilityHint(Fragment fragment, boolean isVisible) {
 
     @SuppressLint("CommitTransaction")
     @Override
-    public void destroyItem(ViewGroup container, int position, Object object) {
+    public void destroyItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
         if (mCurTransaction == null) {
             mCurTransaction = mFragmentManager.beginTransaction();
         }
@@ -125,31 +127,29 @@ public void destroyItem(ViewGroup container, int position, Object object) {
     }
 
     @Override
-    public void setPrimaryItem(ViewGroup container, int position, Object object) {
+    public void setPrimaryItem(@NonNull ViewGroup container, int position, @NonNull Object object) {
         Fragment fragment = (Fragment) object;
         if (fragment != mCurrentPrimaryItem) {
             if (mCurrentPrimaryItem != null) {
                 mCurrentPrimaryItem.setMenuVisibility(false);
                 setUserVisibilityHint(mCurrentPrimaryItem, false);
             }
-            if (fragment != null) {
-                fragment.setMenuVisibility(true);
-                setUserVisibilityHint(fragment, true);
-            }
+            fragment.setMenuVisibility(true);
+            setUserVisibilityHint(fragment, true);
             mCurrentPrimaryItem = fragment;
         }
     }
 
     @Override
-    public void finishUpdate(ViewGroup container) {
+    public void finishUpdate(@NonNull ViewGroup container) {
         if (mCurTransaction != null) {
             mCurTransaction.commitAllowingStateLoss();
             mCurTransaction = null;
         }
     }
 
     @Override
-    public boolean isViewFromObject(View view, Object object) {
+    public boolean isViewFromObject(@NonNull View view, @NonNull Object object) {
         return ((Fragment) object).getView() == view;
     }
 

diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/OnTutorialPageChangeListener.java b/lib/src/main/java/com/cleveroad/slidingtutorial/OnTutorialPageChangeListener.java
@@ -35,5 +35,4 @@ public interface OnTutorialPageChangeListener {
      * @param position Position index of the new selected page.
      */
     void onPageChanged(int position);
-
 }
diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/PageImpl.java b/lib/src/main/java/com/cleveroad/slidingtutorial/PageImpl.java
@@ -35,10 +35,8 @@
 class PageImpl {
 
     private InternalFragment mInternalFragment;
-
-    @LayoutRes
-    private int mLayoutResId;
     private TransformItem[] mTransformItems;
+    private int mLayoutResId;
 
     PageImpl(@NonNull InternalFragment internalFragment) {
         mInternalFragment = internalFragment;
@@ -63,7 +61,6 @@ View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInst
             }
             transformItem.setView(transformView);
         }
-
         return view;
     }
 
@@ -99,5 +96,4 @@ interface InternalFragment {
 
         Bundle getArguments();
     }
-
 }
diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/PageOptions.java b/lib/src/main/java/com/cleveroad/slidingtutorial/PageOptions.java
@@ -66,5 +66,4 @@ int getPosition() {
     TransformItem[] getTransformItems() {
         return mTransformItems;
     }
-
 }
diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/PageSupportFragment.java b/lib/src/main/java/com/cleveroad/slidingtutorial/PageSupportFragment.java
@@ -64,7 +64,7 @@ public void onCreate(@Nullable Bundle savedInstanceState) {
     @SuppressWarnings("ConstantConditions")
     @Nullable
     @Override
-    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
+    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
         return mPage.onCreateView(inflater, container, savedInstanceState);
     }
 

diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/ParcelableUtils.java b/lib/src/main/java/com/cleveroad/slidingtutorial/ParcelableUtils.java
@@ -62,8 +62,6 @@ static <T extends Parcelable> T[] getParcelableArray(@NonNull Bundle bundle, @No
             }
             return items;
         }
-
         return null;
     }
-
 }
diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/SimplePageImpl.java b/lib/src/main/java/com/cleveroad/slidingtutorial/SimplePageImpl.java
@@ -72,5 +72,4 @@ TransformItem[] getTransformItems() {
 
         return transformItems;
     }
-
 }
diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/SlidingTutorialViewPager.java b/lib/src/main/java/com/cleveroad/slidingtutorial/SlidingTutorialViewPager.java
@@ -16,6 +16,7 @@
  * @see <a href="https://code.google.com/p/android/issues/detail?id=66620">Issue 66620</a>
  */
 public class SlidingTutorialViewPager extends ViewPager {
+
     public SlidingTutorialViewPager(Context context) {
         super(context);
     }
@@ -33,11 +34,11 @@ public boolean onInterceptTouchEvent(MotionEvent event) {
     }
 
     @Override
-    public boolean onTouchEvent(MotionEvent ev) {
+    public boolean onTouchEvent(MotionEvent event) {
         if (getAdapter() == null || getAdapter().getCount() == 0) {
             return false;
         }
-        return super.onTouchEvent(ev);
+        return super.onTouchEvent(event);
     }
 
     @Override
@@ -46,7 +47,6 @@ protected int getChildDrawingOrder(int childCount, int i) {
             return super.getChildDrawingOrder(childCount, i);
         } catch (IndexOutOfBoundsException ignored) {
         }
-
         return 0;
     }
 

diff --git a/lib/src/main/java/com/cleveroad/slidingtutorial/TransformItem.java b/lib/src/main/java/com/cleveroad/slidingtutorial/TransformItem.java
@@ -110,5 +110,4 @@ public void writeToParcel(Parcel dest, int flags) {
         dest.writeString(mDirection.name());
         dest.writeFloat(mShiftCoefficient);
     }
-
 }
-Original file line number
+Diff line change
@@ Expand Up / @@ -35,5 +35,4 @@ public interface OnTutorialPageChangeListener { @@
          * @param position Position index of the new selected page.
          */
         void onPageChanged(int position);
     }
Original file line number	Diff line number	Diff line change
Expand Up		@@ -72,5 +72,4 @@ TransformItem[] getTransformItems() {

		return transformItems;
		}

		}