Add exif support

Applying patch from unfinished MR
Source: hkk595#8

Author: Marius Merkevicius

build.gradle

@@ -1,23 +1,30 @@
 // Top-level build file where you can add configuration options common to all sub-projects/modules.
 
 buildscript {
+    ext.kotlin_version = '1.2.51'
+
     repositories {
         google()
         jcenter()
+        maven { url 'https://maven.google.com' }
+        maven { url "https://jitpack.io" }
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.1.3'
         classpath 'com.github.dcendents:android-maven-gradle-plugin:1.5'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
+        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
     }
 }
 
 allprojects {
     repositories {
         google()
         jcenter()
+        maven { url 'https://maven.google.com' }
+        maven { url "https://jitpack.io" }
     }
 }
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Tue Nov 21 01:40:52 HKT 2017
+#Tue Jul 10 18:02:03 AST 2018
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip

app/.gitignore library/.gitignoreapp/.gitignore renamed to library/.gitignore

@@ -1,13 +1,13 @@
 apply plugin: 'com.android.library'
 apply plugin: 'com.github.dcendents.android-maven'
 
-group='com.github.hkk595'
+group = 'com.github.hkk595'
 
 android {
-    compileSdkVersion 26
+    compileSdkVersion 27
     defaultConfig {
         minSdkVersion 16
-        targetSdkVersion 26
+        targetSdkVersion 27
         versionCode 1
         versionName "1.0"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
@@ -22,10 +22,15 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.android.support:appcompat-v7:26.1.0'
+    implementation 'com.android.support:appcompat-v7:27.1.1'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.1'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
+    implementation "com.github.jkwiecien:EasyImage:2.0.4"
 
-    compile 'io.reactivex.rxjava2:rxjava:2.1.6'
+    implementation 'io.reactivex.rxjava2:rxjava:2.1.6'
+    implementation "org.jetbrains.kotlin:kotlin-stdlib-jre7:$kotlin_version"
 }
+
+apply plugin: 'kotlin-android'
+apply plugin: 'kotlin-android-extensions'

app/build.gradle library/build.gradleapp/build.gradle renamed to library/build.gradle

@@ -2,6 +2,8 @@
 
 import android.graphics.Bitmap;
 import android.graphics.BitmapFactory;
+import android.graphics.Matrix;
+import android.media.ExifInterface;
 
 import java.io.File;
 import java.io.IOException;
@@ -12,7 +14,7 @@
 
 public class ImageUtils {
     public static File getScaledImage(int targetLength, int quality, Bitmap.CompressFormat compressFormat,
-            String outputDirPath, String outputFilename, File sourceImage) throws IOException {
+                                      String outputDirPath, String outputFilename, File sourceImage) throws IOException {
         File directory = new File(outputDirPath);
         if (!directory.exists()) {
             directory.mkdirs();
@@ -28,7 +30,7 @@ public static File getScaledImage(int targetLength, int quality, Bitmap.Compress
         return new File(outputFilePath);
     }
 
-    public static Bitmap getScaledBitmap(int targetLength, File sourceImage) {
+    public static Bitmap getScaledBitmap(int targetLength, File sourceImage) throws IOException {
         BitmapFactory.Options options = new BitmapFactory.Options();
         options.inJustDecodeBounds = false;
         Bitmap bitmap = BitmapFactory.decodeFile(sourceImage.getAbsolutePath(), options);
@@ -50,6 +52,20 @@ public static Bitmap getScaledBitmap(int targetLength, File sourceImage) {
             targetWidth = Math.round(targetHeight / aspectRatio);
         }
 
-        return Bitmap.createScaledBitmap(bitmap, targetWidth, targetHeight, true);
+        Bitmap scaledBitmap = Bitmap.createScaledBitmap(bitmap, targetWidth, targetHeight, true);
+
+        //check the rotation of the image and display it properly
+        ExifInterface exif;
+        exif = new ExifInterface(sourceImage.getAbsolutePath());
+        int orientation = exif.getAttributeInt(ExifInterface.TAG_ORIENTATION, 0);
+        Matrix matrix = new Matrix();
+        if (orientation == 6) {
+            matrix.postRotate(90);
+        } else if (orientation == 3) {
+            matrix.postRotate(180);
+        } else if (orientation == 8) {
+            matrix.postRotate(270);
+        }
+        return Bitmap.createBitmap(scaledBitmap, 0, 0, scaledBitmap.getWidth(), scaledBitmap.getHeight(), matrix, true);
     }
 }