Android X migration for Barcode Reader sample

visionSamples/barcode-reader/app/build.gradle

@@ -1,13 +1,13 @@
 apply plugin: 'com.android.application'
 
 android {
-    compileSdkVersion 24
-    buildToolsVersion "24.0.1"
+    compileSdkVersion 28
+    buildToolsVersion "28.0.3"
 
     defaultConfig {
         applicationId "com.google.android.gms.samples.vision.barcodereader"
-        minSdkVersion 9
-        targetSdkVersion 24
+        minSdkVersion 15
+        targetSdkVersion 28
         versionCode 1
         versionName "1.0"
     }
@@ -19,10 +19,11 @@ android {
     }
 }
 
+
 dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-    compile 'com.android.support:support-v4:24.2.0'
-    // Important - the CameraSource implementation in this project requires version 8.1 or higher.
-    compile 'com.google.android.gms:play-services-vision:9.4.0+'
-    compile 'com.android.support:design:24.2.0'
+    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
+    implementation 'com.google.android.gms:play-services-vision:17.0.2'
+    implementation 'androidx.appcompat:appcompat:1.0.2'
+    implementation 'com.google.android.material:material:1.0.0'
+
 }

visionSamples/barcode-reader/app/src/main/java/com/google/android/gms/samples/vision/barcodereader/BarcodeCaptureActivity.java

@@ -28,10 +28,9 @@
 import android.hardware.Camera;
 import android.os.Build;
 import android.os.Bundle;
-import android.support.annotation.NonNull;
-import android.support.design.widget.Snackbar;
-import android.support.v4.app.ActivityCompat;
-import android.support.v7.app.AppCompatActivity;
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.app.ActivityCompat;
 import android.util.Log;
 import android.view.GestureDetector;
 import android.view.MotionEvent;
@@ -49,6 +48,7 @@
 import com.google.android.gms.vision.MultiProcessor;
 import com.google.android.gms.vision.barcode.Barcode;
 import com.google.android.gms.vision.barcode.BarcodeDetector;
+import com.google.android.material.snackbar.Snackbar;
 
 import java.io.IOException;
 

visionSamples/barcode-reader/app/src/main/java/com/google/android/gms/samples/vision/barcodereader/BarcodeGraphicTracker.java

@@ -16,7 +16,7 @@
 package com.google.android.gms.samples.vision.barcodereader;
 
 import android.content.Context;
-import android.support.annotation.UiThread;
+import androidx.annotation.UiThread;
 
 import com.google.android.gms.samples.vision.barcodereader.ui.camera.GraphicOverlay;
 import com.google.android.gms.vision.Detector;

visionSamples/barcode-reader/app/src/main/java/com/google/android/gms/samples/vision/barcodereader/ui/camera/CameraSource.java

@@ -25,9 +25,9 @@
 import android.hardware.Camera.CameraInfo;
 import android.os.Build;
 import android.os.SystemClock;
-import android.support.annotation.Nullable;
-import android.support.annotation.RequiresPermission;
-import android.support.annotation.StringDef;
+import androidx.annotation.Nullable;
+import androidx.annotation.RequiresPermission;
+import androidx.annotation.StringDef;
 import android.util.Log;
 import android.view.Surface;
 import android.view.SurfaceHolder;

visionSamples/barcode-reader/app/src/main/java/com/google/android/gms/samples/vision/barcodereader/ui/camera/CameraSourcePreview.java

@@ -18,7 +18,7 @@
 import android.Manifest;
 import android.content.Context;
 import android.content.res.Configuration;
-import android.support.annotation.RequiresPermission;
+import androidx.annotation.RequiresPermission;
 import android.util.AttributeSet;
 import android.util.Log;
 import android.view.SurfaceHolder;

visionSamples/barcode-reader/build.gradle

@@ -3,9 +3,10 @@
 buildscript {
     repositories {
         jcenter()
+        google()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:2.1.3'
+        classpath 'com.android.tools.build:gradle:3.4.0'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
@@ -15,5 +16,6 @@ buildscript {
 allprojects {
     repositories {
         jcenter()
+        google()
     }
 }

visionSamples/barcode-reader/gradle.properties

@@ -15,4 +15,6 @@
 # When configured, Gradle will run in incubating parallel mode.
 # This option should only be used with decoupled projects. More details, visit
 # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
-# org.gradle.parallel=true
+# org.gradle.parallel=true
+android.enableJetifier=true
+android.useAndroidX=true

visionSamples/barcode-reader/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Wed Apr 10 15:27:10 PDT 2013
+#Wed Jun 12 20:34:07 IDT 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.1.1-all.zip