Migrated to AndroidX and moved to API 29

app/build.gradle

@@ -4,14 +4,14 @@ android {
     configurations.all {
         resolutionStrategy.force 'com.android.support:support-annotations:26.1.0'
     }
-    compileSdkVersion 26
+    compileSdkVersion 29
     defaultConfig {
         applicationId "com.androidmads.ocrcamera"
         minSdkVersion 15
-        targetSdkVersion 26
+        targetSdkVersion 29
         versionCode 1
         versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
         release {
@@ -23,10 +23,10 @@ android {
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation 'com.android.support:appcompat-v7:26.1.0'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.0'
+    implementation 'androidx.appcompat:appcompat:1.1.0'
+    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
     testImplementation 'junit:junit:4.12'
-    androidTestImplementation 'com.android.support.test:runner:1.0.2'
-    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
-    implementation 'com.google.android.gms:play-services-vision:15.0.2'
+    androidTestImplementation 'androidx.test:runner:1.2.0'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.2.0'
+    implementation 'com.google.android.gms:play-services-vision:18.0.0'
 }

app/src/androidTest/java/com/androidmads/ocrcamera/ExampleInstrumentedTest.java

@@ -1,8 +1,9 @@
 package com.androidmads.ocrcamera;
 
 import android.content.Context;
-import android.support.test.InstrumentationRegistry;
-import android.support.test.runner.AndroidJUnit4;
+import androidx.test.InstrumentationRegistry;
+import androidx.test.runner.AndroidJUnit4;
+
 
 import org.junit.Test;
 import org.junit.runner.RunWith;
@@ -19,8 +20,8 @@ public class ExampleInstrumentedTest {
     @Test
     public void useAppContext() throws Exception {
         // Context of the app under test.
-        Context appContext = InstrumentationRegistry.getTargetContext();
 
+        Context appContext = InstrumentationRegistry.getTargetContext();
         assertEquals("com.androidmads.ocrcamera", appContext.getPackageName());
     }
 }

app/src/main/java/com/androidmads/ocrcamera/MainActivity.java

@@ -3,9 +3,9 @@
 import android.Manifest;
 import android.annotation.SuppressLint;
 import android.content.pm.PackageManager;
-import android.support.annotation.NonNull;
-import android.support.v4.app.ActivityCompat;
-import android.support.v7.app.AppCompatActivity;
+import androidx.annotation.NonNull;
+import androidx.core.app.ActivityCompat;
+import androidx.appcompat.app.AppCompatActivity;
 import android.os.Bundle;
 import android.util.Log;
 import android.util.SparseArray;
@@ -19,8 +19,6 @@
 import com.google.android.gms.vision.text.TextBlock;
 import com.google.android.gms.vision.text.TextRecognizer;
 
-import java.io.IOException;
-
 public class MainActivity extends AppCompatActivity implements SurfaceHolder.Callback, Detector.Processor {
 
     private SurfaceView cameraView;

app/src/main/res/layout/activity_main.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<android.support.constraint.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
@@ -21,4 +21,4 @@
         android:textSize="20sp"
         android:padding="5dp"/>
 
-</android.support.constraint.ConstraintLayout>
+</androidx.constraintlayout.widget.ConstraintLayout>

build.gradle

@@ -7,7 +7,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:3.0.1'
+        classpath 'com.android.tools.build:gradle:3.5.0'
 
 
         // NOTE: Do not place your application dependencies here; they belong

gradle.properties

@@ -9,6 +9,8 @@
 
 # Specifies the JVM arguments used for the daemon process.
 # The setting is particularly useful for tweaking memory settings.
+android.enableJetifier=true
+android.useAndroidX=true
 org.gradle.jvmargs=-Xmx1024m
 
 # When configured, Gradle will run in incubating parallel mode.

gradle/wrapper/gradle-wrapper.properties

@@ -3,4 +3,4 @@ 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-5.4.1-all.zip