Android 9+ support

.gitignore

@@ -39,6 +39,8 @@ captures/
 .idea/gradle.xml
 .idea/dictionaries
 .idea/libraries
+.idea/caches
+.idea/codeStyles
 
 # Keystore files
 *.jks

README.md

@@ -19,14 +19,14 @@ Add the following dependencies to your app's `build.gradle`:
 * For Gradle < 4.0
     ```groovy
     dependencies {
-        compile "com.github.adriangl:overlayhelper:1.0.0"
+        compile "com.github.adriangl:overlayhelper:1.1.0"
     }
     ```
 
 * For Gradle 4.0+
     ```groovy
     dependencies {
-        implementation "com.github.adriangl:overlayhelper:1.0.0"
+        implementation "com.github.adriangl:overlayhelper:1.1.0"
     }
     ```
 

app/build.gradle

@@ -1,14 +1,14 @@
 apply plugin: "com.android.application"
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion 28
     defaultConfig {
         applicationId "com.adriangl.overlayhelperexample"
         minSdkVersion 19
-        targetSdkVersion 27
+        targetSdkVersion 28
         versionCode 1
-        versionName "1.0"
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        versionName "1.1"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
         release {
@@ -21,8 +21,8 @@ android {
 dependencies {
     implementation project(":lib")
     implementation fileTree(dir: "libs", include: ["*.jar"])
-    implementation "com.android.support:appcompat-v7:27.0.2"
+    implementation 'androidx.appcompat:appcompat:1.0.2'
     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"
+    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
 }

app/src/androidTest/java/com/adriangl/overlayhelper/ExampleInstrumentedTest.java

@@ -1,8 +1,8 @@
 package com.adriangl.overlayhelper;
 
 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;

app/src/main/java/com/adriangl/overlayhelperexample/MainActivity.java

@@ -2,7 +2,7 @@
 
 import android.content.Intent;
 import android.os.Bundle;
-import android.support.v7.app.AppCompatActivity;
+import androidx.appcompat.app.AppCompatActivity;
 import android.view.View;
 import android.widget.Button;
 import android.widget.TextView;

build.gradle

@@ -6,7 +6,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath "com.android.tools.build:gradle:3.0.1"
+        classpath 'com.android.tools.build:gradle:3.4.0-rc02'
         classpath "com.github.dcendents:android-maven-gradle-plugin:2.0"
 
         // NOTE: Do not place your application dependencies here; they belong

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Thu Jan 25 16:20:43 CET 2018
+#Thu Mar 21 11:09:33 CET 2019
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-4.5-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-5.2.1-all.zip

lib/build.gradle

@@ -4,15 +4,15 @@ apply plugin: 'com.github.dcendents.android-maven'
 group = "com.github.adriangl"
 
 android {
-    compileSdkVersion 27
+    compileSdkVersion 28
 
     defaultConfig {
         minSdkVersion 19
-        targetSdkVersion 27
+        targetSdkVersion 28
         versionCode 1
-        versionName "1.0"
+        versionName "1.1"
 
-        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
 
     }
 
@@ -22,15 +22,14 @@ android {
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
         }
     }
-
 }
 
 dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
-    implementation "com.android.support:support-annotations:27.0.2"
+    implementation 'androidx.annotation:annotation:1.0.2'
     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'
+    androidTestImplementation 'androidx.test:runner:1.1.1'
+    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.1'
 }
 
 // build a jar with source files
@@ -42,8 +41,8 @@ task sourcesJar(type: Jar) {
 task javadoc(type: Javadoc) {
     failOnError false
     source = android.sourceSets.main.java.sourceFiles
-    classpath += project.files(android.getBootClasspath().join(File.pathSeparator))
-    classpath += configurations.compile
+    configurations.implementation.setCanBeResolved(true)
+    classpath += project.files(android.getBootClasspath().join(File.pathSeparator)) + configurations.implementation
 }
 
 // build a jar with javadoc

lib/src/androidTest/java/com/adriangl/overlayhelper/ExampleInstrumentedTest.java

@@ -1,8 +1,8 @@
 package com.adriangl.overlayhelper;
 
 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;

lib/src/main/java/com/adriangl/overlayhelper/OverlayDelegate.java

@@ -4,8 +4,8 @@
 import android.content.Context;
 import android.os.Build;
 import android.provider.Settings;
-import android.support.annotation.RequiresApi;
-import android.support.annotation.RequiresPermission;
+import androidx.annotation.RequiresApi;
+import androidx.annotation.RequiresPermission;
 
 /**
  * Interface used to implement custom overlay checking behaviour depending on device version.
@@ -131,4 +131,28 @@ public boolean canDrawOverlays() {
             return canDrawOverlays;
         }
     }
+
+    /**
+     * Implementation of {@link OverlayDelegate} for devices with API level >= 28.
+     */
+    @RequiresApi(api = Build.VERSION_CODES.P)
+    class PieOverlayDelegate implements OverlayDelegate {
+        private final Context context;
+
+        PieOverlayDelegate(Context context) {
+            this.context = context;
+        }
+
+        @Override public void startWatching() {
+            // No-op
+        }
+
+        @Override public void stopWatching() {
+            // No-op
+        }
+
+        @Override public boolean canDrawOverlays() {
+            return Settings.canDrawOverlays(context);
+        }
+    }
 }

lib/src/main/java/com/adriangl/overlayhelper/OverlayHelper.java

@@ -11,14 +11,15 @@
 import android.net.Uri;
 import android.os.Build;
 import android.provider.Settings;
-import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
-import android.support.annotation.RequiresPermission;
-import android.support.annotation.StringRes;
 
 import java.util.Arrays;
 import java.util.List;
 
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.annotation.RequiresPermission;
+import androidx.annotation.StringRes;
+
 /**
  * Helper class that takes care of querying and requesting permissions for drawing over other apps.
  * <p>
@@ -54,8 +55,11 @@ public OverlayHelper(@NonNull Context ctx, @Nullable OverlayPermissionChangedLis
         this.context = ctx.getApplicationContext();
         this.overlayPermissionChangedListener = listener;
 
-        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
-            // API 26+
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
+            // API 28+: The checks return to API 23-like behaviour
+            this.overlayDelegate = new OverlayDelegate.PieOverlayDelegate(context);
+        } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
+            // API 26+: Fucks up checks, so we need to store the values of the alert window setting in the delegate
             this.overlayDelegate = new OverlayDelegate.OreoOverlayDelegate(context);
         } else if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
             // API 23+: check if the user has explicitly enabled overlays