chore: bump version

App/Info.plist

@@ -27,6 +27,26 @@
 				</array>
 			</dict>
 		</dict>
+		<dict>
+			<key>UTTypeConformsTo</key>
+			<array>
+				<string>public.data</string>
+			</array>
+			<key>UTTypeIdentifier</key>
+			<string>com.google.android.apk</string>
+			<key>UTTypeTagSpecification</key>
+			<dict>
+				<key>public.mime-type</key>
+				<array>
+					<string>application/vnd.android.package-archive</string>
+				</array>
+				<key>public.filename-extension</key>
+				<array>
+					<string>apk</string>
+					<string>apkm</string>
+				</array>
+			</dict>
+		</dict>
 	</array>
 </dict>
 </plist>

CHANGELOG.md

@@ -5,6 +5,12 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project does adhere to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [1.4.0] – 2025-11-29
+Added:
+- Support for `.apk` files
+- Support for `.apkm` files
+
+
 ## [1.3.0] – 2025-11-06
 Added:
 - Show macOS apps in `.xcarchive`
@@ -37,6 +43,7 @@ Added:
 Initial release
 
 
+[1.4.0]: https://github.com/relikd/QLAppBundle/compare/v1.3.0...v1.4.0
 [1.3.0]: https://github.com/relikd/QLAppBundle/compare/v1.2.0...v1.3.0
 [1.2.0]: https://github.com/relikd/QLAppBundle/compare/v1.1.0...v1.2.0
 [1.1.0]: https://github.com/relikd/QLAppBundle/compare/v1.0.0...v1.1.0

Config.xcconfig

@@ -8,6 +8,7 @@ ENABLE_HARDENED_RUNTIME = YES
 SWIFT_VERSION = 5.0
 
 MACOSX_DEPLOYMENT_TARGET = 10.15
-MARKETING_VERSION = 1.3.0
+MARKETING_VERSION = 1.4.0
 PRODUCT_NAME = QLAppBundle
 PRODUCT_BUNDLE_IDENTIFIER = de.relikd.QLAppBundle
+CURRENT_PROJECT_VERSION = 1930

QLAppBundle.xcodeproj/project.pbxproj

@@ -9,6 +9,10 @@
 /* Begin PBXBuildFile section */
 		5405CF5E2EA1199B00613856 /* MetaInfo.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5405CF5D2EA1199B00613856 /* MetaInfo.swift */; };
 		5405CF652EA1376B00613856 /* Zip.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5405CF642EA1376B00613856 /* Zip.swift */; };
+		540B77D92ED79BBD009E030C /* MetaInfo+Apk.swift in Sources */ = {isa = PBXBuildFile; fileRef = 540B77D82ED79BB2009E030C /* MetaInfo+Apk.swift */; };
+		540B77DA2ED79C6B009E030C /* MetaInfo+Apk.swift in Sources */ = {isa = PBXBuildFile; fileRef = 540B77D82ED79BB2009E030C /* MetaInfo+Apk.swift */; };
+		540B77DC2ED79CC1009E030C /* AndroidXML in Frameworks */ = {isa = PBXBuildFile; productRef = 540B77DB2ED79CC1009E030C /* AndroidXML */; };
+		540B77DE2ED79CC8009E030C /* AndroidXML in Frameworks */ = {isa = PBXBuildFile; productRef = 540B77DD2ED79CC8009E030C /* AndroidXML */; };
 		5412DECE2EBC168600F9040D /* Preview+ArchiveInfo.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5412DECD2EBC168600F9040D /* Preview+ArchiveInfo.swift */; };
 		5412DED02EBC283000F9040D /* RuntimeError.swift in Sources */ = {isa = PBXBuildFile; fileRef = 5412DECF2EBC283000F9040D /* RuntimeError.swift */; };
 		543FE5742EB3BB5E0059F98B /* AppIcon.icns in Resources */ = {isa = PBXBuildFile; fileRef = 543FE5732EB3BB5E0059F98B /* AppIcon.icns */; };
@@ -126,6 +130,7 @@
 /* Begin PBXFileReference section */
 		5405CF5D2EA1199B00613856 /* MetaInfo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = MetaInfo.swift; sourceTree = "<group>"; };
 		5405CF642EA1376B00613856 /* Zip.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = Zip.swift; sourceTree = "<group>"; };
+		540B77D82ED79BB2009E030C /* MetaInfo+Apk.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "MetaInfo+Apk.swift"; sourceTree = "<group>"; };
 		5412DECD2EBC168600F9040D /* Preview+ArchiveInfo.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = "Preview+ArchiveInfo.swift"; sourceTree = "<group>"; };
 		5412DECF2EBC283000F9040D /* RuntimeError.swift */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.swift; path = RuntimeError.swift; sourceTree = "<group>"; };
 		54352E8A2EB6A79A0082F61D /* AssetCarReader.framework */ = {isa = PBXFileReference; explicitFileType = wrapper.framework; includeInIndex = 0; path = AssetCarReader.framework; sourceTree = BUILT_PRODUCTS_DIR; };
@@ -192,6 +197,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				540B77DC2ED79CC1009E030C /* AndroidXML in Frameworks */,
 				54B6FFF02EB6AA0F007397C0 /* AssetCarReader.framework in Frameworks */,
 				54D3A6FE2EA465B4001EF4F6 /* CoreGraphics.framework in Frameworks */,
 				54442C232E378BAF008A870E /* Quartz.framework in Frameworks */,
@@ -202,6 +208,7 @@
 			isa = PBXFrameworksBuildPhase;
 			buildActionMask = 2147483647;
 			files = (
+				540B77DE2ED79CC8009E030C /* AndroidXML in Frameworks */,
 				54B6FFF52EB6AA14007397C0 /* AssetCarReader.framework in Frameworks */,
 				54581FD12EB29A0B0043A0B3 /* QuickLookThumbnailing.framework in Frameworks */,
 				54581FD22EB29A0B0043A0B3 /* Quartz.framework in Frameworks */,
@@ -215,6 +222,7 @@
 			isa = PBXGroup;
 			children = (
 				5405CF5D2EA1199B00613856 /* MetaInfo.swift */,
+				540B77D82ED79BB2009E030C /* MetaInfo+Apk.swift */,
 				5412DECF2EBC283000F9040D /* RuntimeError.swift */,
 				54D3A6EB2EA31B52001EF4F6 /* AppCategories.swift */,
 				54D3A6ED2EA39CC6001EF4F6 /* AppIcon.swift */,
@@ -406,6 +414,7 @@
 			);
 			name = "QL Preview";
 			packageProductDependencies = (
+				540B77DB2ED79CC1009E030C /* AndroidXML */,
 			);
 			productName = QLPreview;
 			productReference = 54442C202E378BAF008A870E /* QLAppBundle Preview Extension.appex */;
@@ -427,6 +436,7 @@
 			);
 			name = "QL Thumbnail";
 			packageProductDependencies = (
+				540B77DD2ED79CC8009E030C /* AndroidXML */,
 			);
 			productName = QLThumbnail;
 			productReference = 54581FCF2EB29A0B0043A0B3 /* QLAppBundle Thumbnail Extension.appex */;
@@ -462,6 +472,9 @@
 			);
 			mainGroup = 54442BEB2E378B71008A870E;
 			minimizedProjectReferenceProxies = 1;
+			packageReferences = (
+				54D891112ED7313100BF23C4 /* XCRemoteSwiftPackageReference "AndroidXML" */,
+			);
 			preferredProjectObjectVersion = 77;
 			productRefGroup = 54442BF52E378B71008A870E /* Products */;
 			projectDirPath = "";
@@ -549,6 +562,7 @@
 				547F52ED2EB2C822002B6D5F /* Preview+AppInfo.swift in Sources */,
 				549E3BA12EBAE7D300ADFF56 /* URL+File.swift in Sources */,
 				547F52F42EB2CA05002B6D5F /* Preview+Entitlements.swift in Sources */,
+				540B77D92ED79BBD009E030C /* MetaInfo+Apk.swift in Sources */,
 				5405CF5E2EA1199B00613856 /* MetaInfo.swift in Sources */,
 				547F52F92EB2CBAB002B6D5F /* Date+Format.swift in Sources */,
 				54D3A6EC2EA31B52001EF4F6 /* AppCategories.swift in Sources */,
@@ -567,6 +581,7 @@
 				54AE5BFF2EB3DB1000B4CFC7 /* ThumbnailProvider.swift in Sources */,
 				549E3BA22EBAECD400ADFF56 /* URL+File.swift in Sources */,
 				547899752EB38F3D00F96B80 /* AppIcon.swift in Sources */,
+				540B77DA2ED79C6B009E030C /* MetaInfo+Apk.swift in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -720,7 +735,6 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 1791;
 				DEAD_CODE_STRIPPING = YES;
 				DEBUG_INFORMATION_FORMAT = dwarf;
 				DEVELOPMENT_TEAM = UY657LKNHJ;
@@ -787,7 +801,6 @@
 				CLANG_WARN_UNREACHABLE_CODE = YES;
 				CLANG_WARN__DUPLICATE_METHOD_MATCH = YES;
 				COPY_PHASE_STRIP = NO;
-				CURRENT_PROJECT_VERSION = 1791;
 				DEAD_CODE_STRIPPING = YES;
 				DEBUG_INFORMATION_FORMAT = "dwarf-with-dsym";
 				DEVELOPMENT_TEAM = UY657LKNHJ;
@@ -823,6 +836,7 @@
 				ENABLE_USER_SELECTED_FILES = readonly;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = App/Info.plist;
+				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
 				INFOPLIST_KEY_NSPrincipalClass = NSApplication;
@@ -849,6 +863,7 @@
 				ENABLE_USER_SELECTED_FILES = readonly;
 				GENERATE_INFOPLIST_FILE = YES;
 				INFOPLIST_FILE = App/Info.plist;
+				INFOPLIST_KEY_LSApplicationCategoryType = "public.app-category.utilities";
 				INFOPLIST_KEY_NSHumanReadableCopyright = "";
 				INFOPLIST_KEY_NSMainNibFile = MainMenu;
 				INFOPLIST_KEY_NSPrincipalClass = NSApplication;
@@ -1016,6 +1031,30 @@
 			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
+
+/* Begin XCRemoteSwiftPackageReference section */
+		54D891112ED7313100BF23C4 /* XCRemoteSwiftPackageReference "AndroidXML" */ = {
+			isa = XCRemoteSwiftPackageReference;
+			repositoryURL = "https://github.com/relikd/AndroidXML";
+			requirement = {
+				kind = exactVersion;
+				version = 0.9.4;
+			};
+		};
+/* End XCRemoteSwiftPackageReference section */
+
+/* Begin XCSwiftPackageProductDependency section */
+		540B77DB2ED79CC1009E030C /* AndroidXML */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 54D891112ED7313100BF23C4 /* XCRemoteSwiftPackageReference "AndroidXML" */;
+			productName = AndroidXML;
+		};
+		540B77DD2ED79CC8009E030C /* AndroidXML */ = {
+			isa = XCSwiftPackageProductDependency;
+			package = 54D891112ED7313100BF23C4 /* XCRemoteSwiftPackageReference "AndroidXML" */;
+			productName = AndroidXML;
+		};
+/* End XCSwiftPackageProductDependency section */
 	};
 	rootObject = 54442BEC2E378B71008A870E /* Project object */;
 }

QLAppBundle.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved

@@ -0,0 +1,15 @@
+{
+  "originHash" : "c869761611793a3eebb4e2f56e7aebab4faa8db4159e6116b059292c98af7094",
+  "pins" : [
+    {
+      "identity" : "androidxml",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/relikd/AndroidXML",
+      "state" : {
+        "revision" : "d9fe646bcc3b05548aebbd20b4eee0af675c129f",
+        "version" : "0.9.4"
+      }
+    }
+  ],
+  "version" : 3
+}

QLPreview/Info.plist

@@ -15,6 +15,10 @@
 				<string>com.apple.xcode.archive</string>
 				<string>com.opa334.trollstore.tipa</string>
 				<string>dyn.ah62d4rv4ge81k4puqe</string>
+				<string>com.google.android.apk</string>
+				<string>dyn.ah62d4rv4ge80c6dp</string>
+				<string>public.archive.apk</string>
+				<string>dyn.ah62d4rv4ge80c6dpry</string>
 			</array>
 			<key>QLSupportsSearchableItems</key>
 			<false/>

QLThumbnail/Info.plist

@@ -13,6 +13,10 @@
 				<string>com.apple.xcode.archive</string>
 				<string>com.opa334.trollstore.tipa</string>
 				<string>dyn.ah62d4rv4ge81k4puqe</string>
+				<string>com.google.android.apk</string>
+				<string>dyn.ah62d4rv4ge80c6dp</string>
+				<string>public.archive.apk</string>
+				<string>dyn.ah62d4rv4ge80c6dpry</string>
 			</array>
 			<key>QLThumbnailMinimumDimension</key>
 			<integer>16</integer>

QLThumbnail/ThumbnailProvider.swift

@@ -16,16 +16,9 @@ extension QLThumbnailReply {
 }
 
 class ThumbnailProvider: QLThumbnailProvider {
-	
-	// TODO: sadly, this does not seem to work for .xcarchive and .appex
-	// Probably overwritten by Apple somehow
-	
 	override func provideThumbnail(for request: QLFileThumbnailRequest, _ handler: @escaping (QLThumbnailReply?, Error?) -> Void) {
 		let meta = MetaInfo(request.fileURL)
-		guard let appPlist = meta.readPlistApp() else {
-			return
-		}
-		let img = AppIcon(meta).extractImage(from: appPlist).withRoundCorners()
+		let img = AppIcon(meta).extractImageForThumbnail().withRoundCorners()
 		
 		// First way: Draw the thumbnail into the current context, set up with UIKit's coordinate system.
 		let reply = QLThumbnailReply(contextSize: request.maximumSize, currentContextDrawing: { () -> Bool in

README.md

@@ -6,9 +6,10 @@
 QLAppBundle
 ===========
 
-A QuickLook plugin for app bundles (`.ipa`, `.tipa`, `.appex`, `.xcarchive`).
+A QuickLook plugin for app bundles (`.ipa`, `.tipa`, `.appex`, `.xcarchive`, `.apk`, `.apkm`).
 
-![screenshot](screenshot.png)
+![QuickLook for IPA file](screenshot.png)
+![QuickLook for APK file](screenshot2.png)
 
 
 ## Why?
@@ -27,7 +28,7 @@ Also, I've removed support for provisioning profiles (`.mobileprovision`, `.prov
 
 ## ToDo
 
-- [ ] support for `.apk` files
+- [x] support for `.apk` files
 
 
 

resources/template.html

@@ -73,6 +73,21 @@
 		__ProvisionDeviceIds__
 	</div>
 	
+	<div class="__ApkFeaturesRequiredHidden__">
+		<h2>Features (required)</h2>
+		__ApkFeaturesRequiredList__
+	</div>
+	
+	<div class="__ApkFeaturesOptionalHidden__">
+		<h2>Features (optional)</h2>
+		__ApkFeaturesOptionalList__
+	</div>
+	
+	<div class="__ApkPermissionsHidden__">
+		<h2>Permissions</h2>
+		__ApkPermissionsList__
+	</div>
+	
 	<div>
 		<h2>File info</h2>
 		__FileName__<br />

src/AppIcon.swift

@@ -13,6 +13,24 @@ struct AppIcon {
 		self.meta = meta
 	}
 	
+	/// Convenience getter to extract app icon regardless of bundle-type.
+	func extractImageForThumbnail() -> NSImage {
+		switch meta.type {
+		case .IPA, .Archive, .Extension:
+			extractImage(from: meta.readPlistApp())
+		case .APK:
+			extractImage(from: meta.readApkIconOnly())
+		}
+	}
+	
+	/// Extract image from Android app bundle.
+	func extractImage(from manifest: ApkManifest?) -> NSImage {
+		if let data = manifest?.appIconData, let img = NSImage(data: data) {
+			return img
+		}
+		return defaultIcon()
+	}
+	
 	/// Try multiple methods to extract image.
 	/// This method will always return an image even if none is found, in which case it returns the default image.
 	func extractImage(from appPlist: PlistDict?) -> NSImage {
@@ -22,6 +40,7 @@ struct AppIcon {
 				os_log(.debug, log: log, "[icon] using iTunesArtwork.")
 				return NSImage(data: data)!
 			}
+			// else, fallthrough
 		}
 		
 		// Extract image name from app plist
@@ -49,6 +68,11 @@ struct AppIcon {
 		}
 		
 		// Fallback to default icon
+		return defaultIcon()
+	}
+	
+	/// Return the bundled default icon `"defaultIcon.png"`
+	private func defaultIcon() -> NSImage {
 		let iconURL = Bundle.main.url(forResource: "defaultIcon", withExtension: "png")!
 		return NSImage(contentsOf: iconURL)!
 	}
@@ -98,13 +122,9 @@ extension AppIcon {
 		var matches: [String] = []
 		switch meta.type {
 		case .IPA:
-			guard let zipFile = meta.zipFile else {
-				// in case unzip in memory is not available, fallback to pattern matching with dynamic suffix
-				return "Payload/*.app/\(iconList.first!)*"
-			}
 			for iconPath in iconList {
 				let zipPath = "Payload/*.app/\(iconPath)*"
-				for zip in zipFile.filesMatching(zipPath) {
+				for zip in meta.zipFile!.filesMatching(zipPath) {
 					if zip.sizeUncompressed > 0 {
 						matches.append(zip.filepath)
 					}
@@ -114,6 +134,9 @@ extension AppIcon {
 				}
 			}
 			
+		case .APK:
+			return nil // handled in `extractImage()`
+			
 		case .Archive, .Extension:
 			for iconPath in iconList {
 				let fileName = iconPath.components(separatedBy: "/").last!

src/MetaInfo+Apk.swift

@@ -0,0 +1,287 @@
+import Foundation
+import AndroidXML
+import os // OSLog
+
+private let log = OSLog(subsystem: Bundle.main.bundleIdentifier!, category: "MetaInfo+Apk")
+
+/// Representation of `AndroidManifest.xml`
+struct ApkManifest {
+	var packageId: String? = nil
+	var appName: String? = nil
+	var appIcon: String? = nil
+	/// Computed property
+	var appIconData: Data? = nil
+	var versionName: String? = nil
+	var versionCode: String? = nil
+	var sdkVerMin: String? = nil
+	var sdkVerTarget: String? = nil
+	
+	var featuresRequired: [String] = []
+	var featuresOptional: [String] = []
+	var permissions: [String] = []
+}
+
+
+// MARK: - Full Manifest
+
+extension MetaInfo {
+	/// `(true, <nested-apk>)` -- if extension is `.apkm`.
+	/// `(false, zipFile!)` -- if extension is `.apk`.
+	private func effectiveApk() -> (Bool, ZipFile) {
+		// .apkm may contain multiple .apk files. (plus "icon.png" and "info.json" files)
+		if self.url.pathExtension.lowercased() == "apkm" {
+			if let pth = try? zipFile!.unzipFileToTempDir("base.apk") {
+				return (true, ZipFile(pth))
+			}
+		}
+		// .apk (and derivatives) have their contents structured directly in zip
+		return (false, zipFile!)
+	}
+	
+	/// Extract `AndroidManifest.xml` and parse its content
+	func readApkManifest() -> ApkManifest? {
+		assert(type == .APK)
+		let (isApkm, nestedZip) = effectiveApk()
+		guard let data = nestedZip.unzipFile("AndroidManifest.xml") else {
+			return nil
+		}
+		let storage = ApkXmlManifestParser()
+		if let xml = try? AndroidXML.init(data: data) {
+			let ALLOWED_TAGS = [ // keep in sync with `ApkXmlManifestParser`
+				"manifest",
+				"application",
+				"uses-feature",
+				"uses-permission",
+				"uses-permission-sdk-23",
+				"uses-sdk",
+			]
+			let parser = xml.parseXml()
+			let ignore = XMLParser()
+			try? parser.iterElements({ startTag, attributes in
+				if ALLOWED_TAGS.contains(startTag) {
+					storage.parser(ignore, didStartElement: startTag, namespaceURI: nil, qualifiedName: nil, attributes: try attributes.asDictStr())
+				}
+			}) { endTag in
+				if ALLOWED_TAGS.contains(endTag) {
+					storage.parser(ignore, didEndElement: endTag, namespaceURI: nil, qualifiedName: nil)
+				}
+			}
+		} else {
+			// fallback to xml-string parser
+			let parser = XMLParser(data: data)
+			parser.delegate = storage
+			parser.parse()
+		}
+		
+		var rv = storage.result
+		// if apkm can load png, prefer that over xml-parsing
+		if isApkm, let iconData = zipFile!.unzipFile("icon.png") {
+			rv.appIcon = nil
+			rv.appIconData = iconData
+		}
+		os_log(.debug, log: log, "[apk] resolving %{public}@", String(describing: rv))
+		rv.resolve(nestedZip)
+		os_log(.debug, log: log, "[apk] resolved name: \"%{public}@\" icon: %{public}@", rv.appName ?? "", rv.appIcon ?? "-")
+		return rv
+	}
+}
+
+/// Wrapper to use same code for binary-xml and string-xml parsing
+private class ApkXmlManifestParser: NSObject, XMLParserDelegate {
+	private var _scope: [String] = []
+	var result = ApkManifest()
+	
+	func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attrs: [String : String] = [:]) {
+		// keep in sync with ALLOWED_TAGS above
+		switch elementName {
+		case "manifest":
+			if _scope == [] {
+				result.packageId = attrs["package"] // "org.bundle.id"
+				result.versionName = attrs["android:versionName"] // "7.62.3"
+				result.versionCode = attrs["android:versionCode"] // "160700"
+				// attrs["platformBuildVersionCode"] // "35"
+				// attrs["platformBuildVersionName"] // "15"
+			}
+		case "application":
+			if _scope == ["manifest"] {
+				result.appName = attrs["android:label"] // @resource-ref
+				result.appIcon = attrs["android:icon"] // @resource-ref
+			}
+		case "uses-permission", "uses-permission-sdk-23":
+			// no "permission" because that will produce duplicates with "uses-permission"
+			if _scope == ["manifest"], let name = attrs["android:name"] {
+				result.permissions.append(name)
+			}
+		case "uses-feature":
+			if _scope == ["manifest"], let name = attrs["android:name"] {
+				if attrs["android:required"] == "false" {
+					result.featuresOptional.append(name)
+				} else {
+					result.featuresRequired.append(name)
+				}
+			}
+		case "uses-sdk":
+			if _scope == ["manifest"] {
+				result.sdkVerMin = attrs["android:minSdkVersion"] ?? "1" // "21"
+				result.sdkVerTarget = attrs["android:targetSdkVersion"] // "35"
+			}
+		default: break // ignore
+		}
+		_scope.append(elementName)
+	}
+	
+	func parser(_ parser: XMLParser, didEndElement elementName: String, namespaceURI: String?, qualifiedName qName: String?) {
+		_scope.removeLast()
+	}
+}
+
+
+// MARK: - Icon only
+
+extension MetaInfo {
+	/// Same as `readApkManifest()`  but only extract `appIcon`.
+	func readApkIconOnly() -> ApkManifest? {
+		assert(type == .APK)
+		var rv = ApkManifest()
+		let (isApkm, nestedZip) = effectiveApk()
+		if isApkm, let iconData = zipFile!.unzipFile("icon.png") {
+			rv.appIcon = "icon.png"
+			rv.appIconData = iconData
+			return rv
+		}
+		guard let data = nestedZip.unzipFile("AndroidManifest.xml") else {
+			return nil
+		}
+		if let xml = try? AndroidXML.init(data: data) {
+			let parser = xml.parseXml()
+			try? parser.iterElements({ startTag, attributes in
+				if startTag == "application" {
+					rv.appIcon = try? attributes.get("android:icon")?.resolve(parser.stringPool)
+				}
+			}) {_ in}
+		} else {
+			// fallback to xml-string parser
+			rv.appIcon = ApkXmlIconParser().run(data)
+		}
+		rv.resolve(nestedZip)
+		return rv
+	}
+}
+
+/// Shorter form of `ApkXmlManifestParser` to only exctract the icon reference (used for Thumbnail Provider)
+private class ApkXmlIconParser: NSObject, XMLParserDelegate {
+	var result: String? = nil
+	
+	func run(_ data: Data) -> String? {
+		let parser = XMLParser(data: data)
+		parser.delegate = self
+		parser.parse()
+		return result
+	}
+	
+	func parser(_ parser: XMLParser, didStartElement elementName: String, namespaceURI: String?, qualifiedName qName: String?, attributes attrs: [String : String] = [:]) {
+		if elementName == "application" {
+			result = attrs["android:icon"]
+			parser.abortParsing()
+		}
+	}
+}
+
+
+// MARK: - Resolve resource
+
+private extension ApkManifest {
+	/// Reuse `ZipFile` from previous call because that may be an already unpacked `base.apk`
+	mutating func resolve(_ zip: ZipFile) {
+		guard let data = zip.unzipFile("resources.arsc"),
+			  let xml = try? AndroidXML.init(data: data), xml.type == .Table else {
+			return
+		}
+		
+		let parser = xml.parseTable()
+		if let val = appName, let ref = try? TblTableRef(val) {
+			appName = parser.getName(ref)
+		}
+		if let val = appIcon, let ref = try? TblTableRef(val) {
+			if let iconPath = parser.getIconDirect(ref) ?? parser.getIconIndirect(ref) {
+				appIcon = iconPath
+				appIconData = zip.unzipFile(iconPath)
+			}
+		}
+	}
+}
+
+private extension Tbl_Parser {
+	func getName(_ ref: TblTableRef) -> String? {
+		// why the heck are these even allowed?
+		// apparently there can be references onto references
+		var ref = ref
+		while let res = try? self.getResource(ref) {
+			guard let val = res.entries.first?.entry.value else {
+				return nil
+			}
+			switch val.dataType {
+			case .Reference: ref = val.asTableRef // and continue
+			case .String: return val.resolve(self.stringPool)
+			default: return nil
+			}
+		}
+		return nil
+	}
+	
+	/// Lookup resource with matching id. Choose the icon with the highest density.
+	func getIconDirect(_ ref: TblTableRef) -> String? {
+		guard let res = try? self.getResource(ref) else {
+			return nil
+		}
+		var best: ResValue? = nil
+		var bestScore: UInt16 = 0
+		for e in res.entries {
+			switch e.config.screenType.density {
+			case .Default, .any, .None: continue
+			case let density:
+				if density.rawValue > bestScore, let val = e.entry.value {
+					bestScore = density.rawValue
+					best = val
+				}
+			}
+		}
+		return best?.resolve(self.stringPool)
+	}
+	
+	/// Iterate over all entries and choose best-rated icon file.
+	/// Rating prefers files which have an attribute name `"app_icon"` or `"ic_launcher"`.
+	func getIconIndirect(_ ref: TblTableRef) -> String? {
+		// sadly we cannot just `getResource()` because that can point to an app banner
+		guard let pkg = try? self.getPackage(ref.package),
+			  var pool = pkg.stringPool(for: .Keys),
+			  let (_, types) = try? pkg.getType(ref.type) else {
+			return nil
+		}
+		// density is 120-640
+		let rates: [String: UInt16] = [
+			"app_icon": 1000,
+			"ic_launcher": 800,
+			"ic_launcher_foreground": 200,
+		]
+		var best: ResValue? = nil
+		var bestScore: UInt16 = 0
+		for typ in types {
+			switch typ.config.screenType.density {
+			case .any, .None: continue
+			case let density:
+				try? typ.iterValues {
+					if let val = $1.value {
+						let attrName = pool.getStringCached($1.key)
+						let score = density.rawValue + (rates[attrName] ?? 0)
+						if score > bestScore {
+							bestScore = score
+							best = val
+						}
+					}
+				}
+			}
+		}
+		return best?.resolve(self.stringPool)
+	}
+}

src/MetaInfo.swift

@@ -11,6 +11,7 @@ enum FileType {
 	case IPA
 	case Archive
 	case Extension
+	case APK
 }
 
 struct MetaInfo {
@@ -25,14 +26,14 @@ struct MetaInfo {
 	/// Use file url and UTI type to generate an info object to pass around.
 	init(_ url: URL) {
 		self.url = url
-		self.UTI = try! url.resourceValues(forKeys:  [.typeIdentifierKey]).typeIdentifier ?? "Unknown"
+		self.UTI = try! url.resourceValues(forKeys: [.typeIdentifierKey]).typeIdentifier ?? "Unknown"
 		
 		var isOSX = false
 		var effective: URL? = nil
 		var zipFile: ZipFile? = nil
 		
 		switch self.UTI {
-		case "com.apple.itunes.ipa", "com.opa334.trollstore.tipa", "dyn.ah62d4rv4ge81k4puqe":
+		case "com.apple.itunes.ipa", "com.opa334.trollstore.tipa", "dyn.ah62d4rv4ge81k4puqe" /* tipa */:
 			self.type = FileType.IPA
 			zipFile = ZipFile(self.url.path)
 		case "com.apple.xcode.archive":
@@ -46,6 +47,9 @@ struct MetaInfo {
 			}
 		case "com.apple.application-and-system-extension":
 			self.type = FileType.Extension
+		case "com.google.android.apk", "dyn.ah62d4rv4ge80c6dp" /* apk */, "public.archive.apk", "dyn.ah62d4rv4ge80c6dpry" /* apkm */:
+			self.type = FileType.APK
+			zipFile = ZipFile(self.url.path)
 		default:
 			os_log(.error, log: log, "Unsupported file type: %{public}@", self.UTI)
 			fatalError()
@@ -58,7 +62,7 @@ struct MetaInfo {
 	/// Evaluate path with `osxSubdir` and `filename`
 	func effectiveUrl(_ osxSubdir: String?, _ filename: String) -> URL {
 		switch self.type {
-		case .IPA:
+		case .IPA, .APK:
 			return effectiveUrl
 		case .Archive, .Extension:
 			if isOSX, let osxSubdir {
@@ -75,6 +79,8 @@ struct MetaInfo {
 		switch self.type {
 		case .IPA:
 			return zipFile!.unzipFile("Payload/*.app/".appending(filename))
+		case .APK:
+			return nil // not applicable for .apk
 		case .Archive, .Extension:
 			return try? Data(contentsOf: self.effectiveUrl(osxSubdir, filename))
 		}
@@ -85,6 +91,8 @@ struct MetaInfo {
 		switch self.type {
 		case .IPA, .Archive, .Extension:
 			return self.readPayloadFile("Info.plist", osxSubdir: nil)?.asPlistOrNil()
+		case .APK:
+			return nil // not applicable for Android
 		}
 	}
 }

src/Preview+AppInfo.swift

@@ -23,11 +23,7 @@ extension PreviewGenerator {
 	}
 	
 	/// Process info stored in `Info.plist`
-	mutating func procAppInfo(_ appPlist: PlistDict?, isOSX: Bool) {
-		guard let appPlist else {
-			self.apply(["AppInfoHidden": CLASS_HIDDEN])
-			return
-		}
+	mutating func procAppInfoApple(_ appPlist: PlistDict, isOSX: Bool) {
 		let minVersion = appPlist[isOSX ? "LSMinimumSystemVersion" : "MinimumOSVersion"] as? String ?? ""
 		
 		let extensionType = (appPlist["NSExtension"] as? PlistDict)?["NSExtensionPointIdentifier"] as? String
@@ -46,4 +42,81 @@ extension PreviewGenerator {
 			"AppMinOS": minVersion,
 		])
 	}
+	
+	/// Process info stored in `Info.plist`
+	mutating func procAppInfoAndroid(_ manifest: ApkManifest) {
+		let featReq = manifest.featuresRequired
+		let featOpt = manifest.featuresOptional
+		let perms = manifest.permissions
+		
+		func asList(_ list: [String]) -> String {
+			"<pre>\(list.joined(separator: "\n"))</pre>"
+		}
+		
+		func resolveSDK(_ sdk: String?) -> String {
+			sdk == nil ? "" : "\(sdk!) (Android \(ANDROID_SDK_MAP[sdk!] ?? "?"))"
+		}
+		self.apply([
+			"AppInfoHidden": CLASS_VISIBLE,
+			"AppName": manifest.appName ?? "",
+			"AppVersion": manifest.versionName ?? "",
+			"AppBuildVer": manifest.versionCode ?? "",
+			"AppId": manifest.packageId ?? "",
+			
+			"ApkFeaturesRequiredHidden": featReq.isEmpty ? CLASS_HIDDEN : CLASS_VISIBLE,
+			"ApkFeaturesRequiredList": asList(featReq),
+			"ApkFeaturesOptionalHidden": featOpt.isEmpty ? CLASS_HIDDEN : CLASS_VISIBLE,
+			"ApkFeaturesOptionalList": asList(featOpt),
+			"ApkPermissionsHidden": perms.isEmpty ? CLASS_HIDDEN : CLASS_VISIBLE,
+			"ApkPermissionsList": asList(perms),
+			
+			"AppDeviceFamily": "Android",
+			"AppSDK": resolveSDK(manifest.sdkVerTarget),
+			"AppMinOS": resolveSDK(manifest.sdkVerMin),
+		])
+	}
 }
+
+private let ANDROID_SDK_MAP: [String: String] = [
+	"1": "1.0",
+	"2": "1.1",
+	"3": "1.5",
+	"4": "1.6",
+	"5": "2.0",
+	"6": "2.0.1",
+	"7": "2.1.x",
+	"8": "2.2.x",
+	"9": "2.3, 2.3.1, 2.3.2",
+	"10": "2.3.3, 2.3.4",
+	"11": "3.0.x",
+	"12": "3.1.x",
+	"13": "3.2",
+	"14": "4.0, 4.0.1, 4.0.2",
+	"15": "4.0.3, 4.0.4",
+	"16": "4.1, 4.1.1",
+	"17": "4.2, 4.2.2",
+	"18": "4.3",
+	"19": "4.4",
+	"20": "4.4W",
+	"21": "5.0",
+	"22": "5.1",
+	"23": "6.0",
+	"24": "7.0",
+	"25": "7.1, 7.1.1",
+	"26": "8.0",
+	"27": "8.1",
+	"28": "9",
+	"29": "10",
+	"30": "11",
+	"31": "12",
+	"32": "12",
+	"33": "13",
+	"34": "14",
+	"35": "15",
+	"36": "16",
+	// can we assume new versions will stick to this scheme?
+	"37": "17",
+	"38": "18",
+	"39": "19",
+	"40": "20",
+]

src/Preview+ArchiveInfo.swift

@@ -7,7 +7,7 @@ extension MetaInfo {
 		case .Archive:
 			// not `readPayloadFile` because plist is in root dir
 			return try? Data(contentsOf: self.url.appendingPathComponent("Info.plist", isDirectory: false)).asPlistOrNil()
-		case .IPA, .Extension:
+		case .IPA, .Extension, .APK:
 			return nil
 		}
 	}
@@ -17,7 +17,6 @@ extension PreviewGenerator {
 	/// Process info of `.xcarchive` stored in root `Info.plist`
 	mutating func procArchiveInfo(_ archivePlist: PlistDict?) {
 		guard let archivePlist, let comment = archivePlist["Comment"] as? String else {
-			self.apply(["ArchiveHidden": CLASS_HIDDEN])
 			return
 		}
 		

src/Preview+Entitlements.swift

@@ -3,22 +3,22 @@ import Foundation
 extension PreviewGenerator {
 	/// Search for app binary and run `codesign` on it.
 	private func readEntitlements(_ meta: MetaInfo, _ bundleExecutable: String?) -> Entitlements {
-		guard let bundleExecutable else {
-			return Entitlements.withoutBinary()
-		}
-		
-		switch meta.type {
-		case .IPA:
-			let tmpPath = NSTemporaryDirectory() + "/" + UUID().uuidString
-			try! FileManager.default.createDirectory(atPath: tmpPath, withIntermediateDirectories: true)
-			defer {
-				try? FileManager.default.removeItem(atPath: tmpPath)
+		if let exe = bundleExecutable {
+			switch meta.type {
+			case .IPA:
+				if let tmpPath = try? meta.zipFile!.unzipFileToTempDir("Payload/*.app/\(exe)") {
+					defer {
+						try? FileManager.default.removeItem(atPath: tmpPath)
+					}
+					return Entitlements(forBinary: tmpPath + "/" + exe)
+				}
+			case .Archive, .Extension:
+				return Entitlements(forBinary: meta.effectiveUrl("MacOS", exe).path)
+			case .APK:
+				break // not applicable for Android
 			}
-			try! meta.zipFile!.unzipFile("Payload/*.app/\(bundleExecutable)", toDir: tmpPath)
-			return Entitlements(forBinary: tmpPath + "/" + bundleExecutable)
-		case .Archive, .Extension:
-			return Entitlements(forBinary: meta.effectiveUrl("MacOS", bundleExecutable).path)
 		}
+		return Entitlements.withoutBinary()
 	}
 	
 	/// Process compiled binary and provision plist to extract `Entitlements`
@@ -27,7 +27,6 @@ extension PreviewGenerator {
 		entitlements.applyFallbackIfNeeded(provisionPlist?["Entitlements"] as? PlistDict)
 		
 		if entitlements.html == nil && !entitlements.hasError {
-			self.apply(["EntitlementsHidden" : CLASS_HIDDEN])
 			return
 		}
 		

src/Preview+Provisioning.swift

@@ -114,7 +114,6 @@ extension PreviewGenerator {
 	/// Process info stored in `embedded.mobileprovision`
 	mutating func procProvision(_ provisionPlist: PlistDict?, isOSX: Bool) {
 		guard let provisionPlist else {
-			self.apply(["ProvisionHidden": CLASS_HIDDEN])
 			return
 		}
 		

src/Preview+TransportSecurity.swift

@@ -45,7 +45,6 @@ extension PreviewGenerator {
 	/// Process ATS info in `Info.plist`
 	mutating func procTransportSecurity(_ appPlist: PlistDict?) {
 		guard let value = appPlist?["NSAppTransportSecurity"] as? PlistDict else {
-			self.apply(["TransportSecurityHidden": CLASS_HIDDEN])
 			return
 		}
 		

src/Preview+iTunesPurchase.swift

@@ -7,7 +7,7 @@ extension MetaInfo {
 		case .IPA:
 			// not `readPayloadFile` because plist is in root dir
 			return self.zipFile!.unzipFile("iTunesMetadata.plist")?.asPlistOrNil()
-		case .Archive, .Extension:
+		case .Archive, .Extension, .APK:
 			return nil
 		}
 	}
@@ -35,7 +35,6 @@ extension PreviewGenerator {
 	/// Process info stored in `iTunesMetadata.plist`
 	mutating func procItunesMeta(_ itunesPlist: PlistDict?) {
 		guard let itunesPlist else {
-			self.apply(["iTunesHidden": CLASS_HIDDEN])
 			return
 		}
 		

src/PreviewGenerator.swift

@@ -4,28 +4,57 @@ let CLASS_HIDDEN = "hidden"
 let CLASS_VISIBLE = ""
 
 struct PreviewGenerator {
-	var data: [String: String] = [:] // used for TAG replacements
+	/// Used for TAG replacements
+	var data: [String: String] = [
+		// default: hide everything
+		"AppInfoHidden": CLASS_HIDDEN,
+		"AppExtensionTypeHidden": CLASS_HIDDEN,
+		"ArchiveHidden": CLASS_HIDDEN,
+		"iTunesHidden": CLASS_HIDDEN,
+		"TransportSecurityHidden": CLASS_HIDDEN,
+		"EntitlementsHidden": CLASS_HIDDEN,
+		"EntitlementsWarningHidden": CLASS_HIDDEN,
+		"ProvisionHidden": CLASS_HIDDEN,
+		"ApkFeaturesRequiredHidden": CLASS_HIDDEN,
+		"ApkFeaturesOptionalHidden": CLASS_HIDDEN,
+		"ApkPermissionsHidden": CLASS_HIDDEN,
+	]
 	let meta: MetaInfo
 	
 	init(_ meta: MetaInfo) throws {
 		self.meta = meta
-		guard let plistApp = meta.readPlistApp() else {
-			throw RuntimeError("Info.plist not found")
+		
+		switch meta.type {
+		case .IPA, .Archive, .Extension:
+			guard let plistApp = meta.readPlistApp() else {
+				throw RuntimeError("Info.plist not found")
+			}
+			procAppInfoApple(plistApp, isOSX: meta.isOSX)
+			if meta.type == .IPA {
+				procItunesMeta(meta.readPlistItunes())
+			} else if meta.type == .Archive {
+				procArchiveInfo(meta.readPlistXCArchive())
+			}
+			procTransportSecurity(plistApp)
+			
+			let plistProvision = meta.readPlistProvision()
+			procEntitlements(meta, plistApp, plistProvision)
+			procProvision(plistProvision, isOSX: meta.isOSX)
+			// App Icon (last, because the image uses a lot of memory)
+			data["AppIcon"] = AppIcon(meta).extractImage(from: plistApp).withRoundCorners().asBase64()
+			
+		case .APK:
+			guard let manifest = meta.readApkManifest() else {
+				throw RuntimeError("AndroidManifest.xml not found")
+			}
+			procAppInfoAndroid(manifest)
+			// App Icon (last, because the image uses a lot of memory)
+			data["AppIcon"] = AppIcon(meta).extractImage(from: manifest).withRoundCorners().asBase64()
 		}
-		let plistProvision = meta.readPlistProvision()
 		
 		data["QuickLookTitle"] = stringForFileType(meta)
-		
-		procAppInfo(plistApp, isOSX: meta.isOSX)
-		procArchiveInfo(meta.readPlistXCArchive())
-		procItunesMeta(meta.readPlistItunes())
-		procTransportSecurity(plistApp)
-		procEntitlements(meta, plistApp, plistProvision)
-		procProvision(plistProvision, isOSX: meta.isOSX)
 		procFileInfo(meta.url)
 		procFooterInfo()
-		// App Icon (last, because the image uses a lot of memory)
-		data["AppIcon"] = AppIcon(meta).extractImage(from: plistApp).withRoundCorners().asBase64()
 	}
 	
 	mutating func apply(_ values: [String: String]) {
@@ -35,7 +64,7 @@ struct PreviewGenerator {
 	/// Title of the preview window
 	private func stringForFileType(_ meta: MetaInfo) -> String {
 		switch meta.type {
-		case .IPA:       return "App info"
+		case .IPA, .APK: return "App info"
 		case .Archive:   return "Archive info"
 		case .Extension: return "App extension info"
 		}

src/Zip.swift

@@ -354,12 +354,23 @@ struct ZipFile {
 	/// Unzip file to filesystem.
 	/// @param filePath File path inside zip file.
 	/// @param targetDir Directory in which to unzip the file.
-	func unzipFile(_ filePath: String, toDir targetDir: String) throws {
-		if let data = self.unzipFile(filePath) {
-			let filename = filePath.components(separatedBy: "/").last!
-			let outputPath = targetDir.appending("/" + filename)
-			os_log(.debug, log: log, "[unzip] write to %{public}@", outputPath)
-			try data.write(to: URL(fileURLWithPath: outputPath), options: .atomic)
+	@discardableResult
+	func unzipFile(_ filePath: String, toDir targetDir: String) throws -> String? {
+		guard let data = self.unzipFile(filePath) else {
+			return nil
 		}
+		let filename = filePath.components(separatedBy: "/").last!
+		let outputPath = targetDir.appending("/" + filename)
+		os_log(.debug, log: log, "[unzip] write to %{public}@", outputPath)
+		try data.write(to: URL(fileURLWithPath: outputPath), options: .atomic)
+		return outputPath
+	}
+	
+	/// Extract selected `filePath` inside zip to a new temporary directory and return path to that file.
+	/// @return Path to extracted data. Returns `nil` or throws exception if data could not be extracted.
+	func unzipFileToTempDir(_ filePath: String) throws -> String? {
+		let tmpPath = NSTemporaryDirectory() + "/" + UUID().uuidString
+		try! FileManager.default.createDirectory(atPath: tmpPath, withIntermediateDirectories: true)
+		return try unzipFile(filePath, toDir: tmpPath)
 	}
 }