[android] Update gradle build system

android-project/app/build.gradle

@@ -1,65 +1,64 @@
-def buildAsLibrary = project.hasProperty('BUILD_AS_LIBRARY');
-def buildAsApplication = !buildAsLibrary
-if (buildAsApplication) {
-    apply plugin: 'com.android.application'
-}
-else {
-    apply plugin: 'com.android.library'
-}
-
-android {
-    compileSdkVersion 29 // Upgrade to 30 after november 2021
-    aaptOptions {
-        noCompress 'mpq'
-    }
-    defaultConfig {
-        if (buildAsApplication) {
-            applicationId "org.diasurgical.devilutionx"
-        }
-        minSdkVersion 18
-        targetSdkVersion 29 // Upgrade to 30 after november 2021
-        versionCode 18
-        versionName "1.2.1"
-        externalNativeBuild {
-            cmake {
-                arguments "-DANDROID_STL=c++_static"
-                abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
-            }
-        }
-    }
-    buildTypes {
-        release {
-            minifyEnabled false
-            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
-        }
-    }
-    if (!project.hasProperty('EXCLUDE_NATIVE_LIBS')) {
-        sourceSets.main {
-            jniLibs.srcDir 'libs'
-        }
-        externalNativeBuild {
-            cmake {
-                path '../../CMakeLists.txt'
-                version "3.13.0+"
-            }
-        }
-
-    }
-
-    if (buildAsLibrary) {
-        libraryVariants.all { variant ->
-            variant.outputs.each { output ->
-                def outputFile = output.outputFile
-                if (outputFile != null && outputFile.name.endsWith(".aar")) {
-                    def fileName = "org.diasurgical.devilutionx.aar";
-                    output.outputFile = new File(outputFile.parent, fileName);
-                }
-            }
-        }
-    }
-}
-
-dependencies {
-    implementation fileTree(include: ['*.jar'], dir: 'libs')
-    implementation 'com.android.support.constraint:constraint-layout:2.0.4'
-}
+def buildAsLibrary = project.hasProperty('BUILD_AS_LIBRARY');
+def buildAsApplication = !buildAsLibrary
+if (buildAsApplication) {
+	apply plugin: 'com.android.application'
+} else {
+	apply plugin: 'com.android.library'
+}
+
+android {
+	compileSdkVersion 29 // Upgrade to 30 after november 2021
+	aaptOptions {
+		noCompress 'mpq'
+	}
+	defaultConfig {
+		if (buildAsApplication) {
+			applicationId "org.diasurgical.devilutionx"
+		}
+		minSdkVersion 18
+		targetSdkVersion 29 // Upgrade to 30 after november 2021
+		versionCode 18
+		versionName "1.2.1"
+		externalNativeBuild {
+			cmake {
+				arguments "-DANDROID_STL=c++_static"
+				abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
+			}
+		}
+	}
+	buildTypes {
+		release {
+			minifyEnabled false
+			proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
+		}
+	}
+	if (!project.hasProperty('EXCLUDE_NATIVE_LIBS')) {
+		sourceSets.main {
+			jniLibs.srcDir 'libs'
+		}
+		externalNativeBuild {
+			cmake {
+				path '../../CMakeLists.txt'
+				version "3.13.0+"
+			}
+		}
+
+	}
+
+	if (buildAsLibrary) {
+		libraryVariants.all { variant ->
+			variant.outputs.each { output ->
+				def outputFile = output.outputFile
+				if (outputFile != null && outputFile.name.endsWith(".aar")) {
+					def fileName = "org.diasurgical.devilutionx.aar";
+					output.outputFile = new File(outputFile.parent, fileName);
+				}
+			}
+		}
+	}
+}
+
+dependencies {
+	implementation fileTree(include: ['*.jar'], dir: 'libs')
+	implementation 'com.android.support.constraint:constraint-layout:2.0.4'
+}

android-project/build.gradle

@@ -1,25 +1,25 @@
-// Top-level build file where you can add configuration options common to all sub-projects/modules.
-
-buildscript {
-    repositories {
-        mavenCentral()
-        google()
-    }
-    dependencies {
-        classpath 'com.android.tools.build:gradle:4.1.3'
-
-        // NOTE: Do not place your application dependencies here; they belong
-        // in the individual module build.gradle files
-    }
-}
-
-allprojects {
-    repositories {
-        mavenCentral()
-        google()
-    }
-}
-
-task clean(type: Delete) {
-    delete rootProject.buildDir
-}
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+
+buildscript {
+	repositories {
+		mavenCentral()
+		google()
+	}
+	dependencies {
+		classpath 'com.android.tools.build:gradle:7.0.0'
+
+		// NOTE: Do not place your application dependencies here; they belong
+		// in the individual module build.gradle files
+	}
+}
+
+allprojects {
+	repositories {
+		mavenCentral()
+		google()
+	}
+}
+
+task clean(type: Delete) {
+	delete rootProject.buildDir
+}

android-project/gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
-#Mon Jun 07 15:45:49 CEST 2021
+#Sat Jul 31 19:39:28 CEST 2021
 distributionBase=GRADLE_USER_HOME
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.1-bin.zip
 distributionPath=wrapper/dists
-zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.0.2-bin.zip
+zipStoreBase=GRADLE_USER_HOME