v2.3.6 update

- Fixed: Pure black or white images processing.

Author: DmitryH

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.4.2'
+        classpath 'com.android.tools.build:gradle:3.5.3'
         classpath 'com.google.gms:google-services:3.2.1'
 
         // NOTE: Do not place your application dependencies here; they belong

cropDemo/build.gradle

@@ -33,19 +33,19 @@ android {
         }
     }
 
-    compileSdkVersion 28
-    buildToolsVersion '28.0.3'
+    compileSdkVersion 29
+    buildToolsVersion '29.0.2'
     defaultConfig {
         applicationId "com.pixelnetica.cropdemo"
         // NOTE: Don't change value here. Select build flavor
         buildConfigField "boolean", "DEVELOP", "false"
         buildConfigField "String", "GIT_HASH", "\"${gitHash}\""
 
-        minSdkVersion 19
+        minSdkVersion 21
         targetSdkVersion 28
 
-        versionCode 37
-        versionName "2.3.5." + versionCode.toString()
+        versionCode 38
+        versionName "2.3.6." + versionCode.toString()
 
         ndk {
             abiFilters = ['armeabi-v7a', 'arm64-v8a', 'x86_64', 'x86']
@@ -97,13 +97,15 @@ repositories{
 }
 
 dependencies {
-    implementation('com.pixelnetica.sdk:scanning-release:2.3.5') { changing = true }
-    implementation 'com.android.support:appcompat-v7:28.0.0'
-    implementation 'com.android.support:preference-v14:28.0.0'
-    implementation 'com.android.support:design:28.0.0'
-    implementation 'com.android.support:gridlayout-v7:28.0.0'
-    implementation 'com.android.support:support-core-ui:28.0.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
-    implementation 'com.android.support:support-annotations:28.0.0'
-    implementation 'android.arch.lifecycle:extensions:1.1.1'
+    implementation('com.pixelnetica.sdk:scanning-release:2.3.6') { changing = true }
+
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.legacy:legacy-preference-v14:1.0.0'
+    implementation 'com.google.android.material:material:1.1.0'
+    implementation 'androidx.gridlayout:gridlayout:1.0.0'
+    implementation 'androidx.legacy:legacy-support-core-ui:1.0.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
+    implementation 'androidx.annotation:annotation:1.1.0'
+    implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
+    implementation 'androidx.exifinterface:exifinterface:1.1.0'
 }

cropDemo/src/core/java/com/pixelnetica/cropdemo/AppSdkFactory.java

@@ -3,7 +3,7 @@
 import android.app.Application;
 import android.content.Context;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 
 import com.pixelnetica.cropdemo.camera.FindDocCornersThread;
 import com.pixelnetica.imagesdk.AutoShotDetector;

cropDemo/src/core/java/com/pixelnetica/cropdemo/CutoutParamsFragment.java

@@ -1,8 +1,8 @@
 package com.pixelnetica.cropdemo;
 
 import android.content.SharedPreferences;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
 
 /**
  * Created by Denis on 13.03.2017.

cropDemo/src/core/java/com/pixelnetica/cropdemo/SdkParamsFragment.java

@@ -1,8 +1,8 @@
 package com.pixelnetica.cropdemo;
 
 import android.content.SharedPreferences;
-import android.support.annotation.NonNull;
-import android.support.v4.app.Fragment;
+import androidx.annotation.NonNull;
+import androidx.fragment.app.Fragment;
 
 /**
  * Created by Denis on 17.09.2016.

cropDemo/src/main/AndroidManifest.xml

@@ -21,7 +21,7 @@
 
 	<application
         android:allowBackup="true"
-        android:icon="@mipmap/ic_action_select_all"
+        android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
         android:theme="@style/AppTheme"
         android:largeHeap="true"
@@ -53,7 +53,7 @@
 
         <!-- NEW file provider -->
         <provider
-            android:name="android.support.v4.content.FileProvider"
+            android:name="androidx.core.content.FileProvider"
             android:authorities="${applicationId}.fileprovider"
             android:grantUriPermissions="true"
             android:exported="false">

cropDemo/src/main/java/com/pixelnetica/cropdemo/AppParamsFragment.java

@@ -3,9 +3,9 @@
 import android.content.SharedPreferences;
 import android.os.Bundle;
 import android.preference.PreferenceManager;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v4.app.Fragment;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;

cropDemo/src/main/java/com/pixelnetica/cropdemo/CropData.java

@@ -2,13 +2,12 @@
 
 import android.graphics.Bitmap;
 import android.graphics.Matrix;
-import android.graphics.Paint;
 import android.graphics.Point;
 import android.graphics.PointF;
 import android.graphics.RectF;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.util.Log;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+
 import android.util.Pair;
 
 import com.pixelnetica.imagesdk.Corners;
@@ -18,11 +17,8 @@
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collections;
-import java.util.HashMap;
 import java.util.Iterator;
 import java.util.List;
-import java.util.Map;
-import java.util.WeakHashMap;
 
 public class CropData extends Corners {
 

cropDemo/src/main/java/com/pixelnetica/cropdemo/CropImageView.java

@@ -17,9 +17,10 @@
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.os.AsyncTask;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.v7.widget.AppCompatImageView;
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.appcompat.widget.AppCompatImageView;
+
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.MotionEvent;

cropDemo/src/main/java/com/pixelnetica/cropdemo/DetectDocCornersTask.java

@@ -1,11 +1,10 @@
 package com.pixelnetica.cropdemo;
 
 import android.os.AsyncTask;
-import android.support.annotation.NonNull;
+import androidx.annotation.NonNull;
 import android.util.Log;
 
 import com.pixelnetica.imagesdk.Corners;
-import com.pixelnetica.imagesdk.ImageSdkLibrary;
 import com.pixelnetica.imagesdk.MetaImage;