Updating module 'app' to Java 8 syntax (#308)

Author: seventhmoon

app/build.gradle

@@ -18,6 +18,14 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
+
+    compileOptions {
+        // Flag to enable support for the new language APIs
+        coreLibraryDesugaringEnabled false
+        // Sets Java compatibility to Java 8
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
 }
 
 dependencies {

app/src/main/java/pub/devrel/easypermissions/sample/MainActivity.java

@@ -18,12 +18,12 @@
 import android.Manifest;
 import android.content.Intent;
 import android.os.Bundle;
-import androidx.annotation.NonNull;
-import androidx.appcompat.app.AppCompatActivity;
 import android.util.Log;
-import android.view.View;
 import android.widget.Toast;
 
+import androidx.annotation.NonNull;
+import androidx.appcompat.app.AppCompatActivity;
+
 import java.util.List;
 
 import pub.devrel.easypermissions.AfterPermissionGranted;
@@ -46,20 +46,10 @@ protected void onCreate(Bundle savedInstanceState) {
         setContentView(R.layout.activity_main);
 
         // Button click listener that will request one permission.
-        findViewById(R.id.button_camera).setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                cameraTask();
-            }
-        });
+        findViewById(R.id.button_camera).setOnClickListener(v -> cameraTask());
 
         // Button click listener that will request two permissions.
-        findViewById(R.id.button_location_and_contacts).setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                locationAndContactsTask();
-            }
-        });
+        findViewById(R.id.button_location_and_contacts).setOnClickListener(v -> locationAndContactsTask());
     }
 
     private boolean hasCameraPermission() {

app/src/main/java/pub/devrel/easypermissions/sample/MainFragment.java

@@ -8,10 +8,11 @@
 import android.view.ViewGroup;
 import android.widget.Toast;
 
-import java.util.List;
-
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
+
+import java.util.List;
+
 import pub.devrel.easypermissions.AfterPermissionGranted;
 import pub.devrel.easypermissions.EasyPermissions;
 
@@ -33,12 +34,7 @@ public View onCreateView(LayoutInflater inflater,
         View v = inflater.inflate(R.layout.fragment_main, container);
 
         // Button click listener
-        v.findViewById(R.id.button_sms).setOnClickListener(new View.OnClickListener() {
-            @Override
-            public void onClick(View v) {
-                smsTask();
-            }
-        });
+        v.findViewById(R.id.button_sms).setOnClickListener(v1 -> smsTask());
 
         return v;
     }

easypermissions/build.gradle

@@ -27,6 +27,7 @@ android {
             includeAndroidResources = true
         }
     }
+
 }
 
 junitJacoco {

easypermissions/src/test/java/pub/devrel/easypermissions/RationaleDialogClickListenerTest.java

@@ -4,6 +4,7 @@
 import android.app.Activity;
 import android.app.Dialog;
 import android.content.DialogInterface;
+
 import androidx.fragment.app.Fragment;
 
 import org.junit.Before;

easypermissions/src/test/java/pub/devrel/easypermissions/testhelper/ActivityController.java

@@ -2,12 +2,12 @@
 
 import android.app.Activity;
 
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.ExecutionException;
-
 import androidx.annotation.NonNull;
 import androidx.test.core.app.ActivityScenario;
 
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+
 /**
  * Helper class to allow starting Activity, similar to the Robolectric ActivityConroller.
  */
@@ -24,8 +24,8 @@ public synchronized T resume() {
 
         scenario.onActivity(new ActivityScenario.ActivityAction<T>() {
             @Override
-            public void perform(@NonNull T Activity) {
-                ActivityFuture.complete(Activity);
+            public void perform(@NonNull T activity) {
+                ActivityFuture.complete(activity);
             }
         });
 

easypermissions/src/test/java/pub/devrel/easypermissions/testhelper/FragmentController.java

@@ -1,12 +1,12 @@
 package pub.devrel.easypermissions.testhelper;
 
-import java.util.concurrent.CompletableFuture;
-import java.util.concurrent.ExecutionException;
-
 import androidx.annotation.NonNull;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.testing.FragmentScenario;
 
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+
 /**
  * Helper class to allow starting Fragments, similar to the old SupportFragmentController.
  */