packages/flutter_tools/lib/src/android/application_package.dart - mirrors/flutter - Git at Google

 // Copyright 2014 The Flutter Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 import 'dart:collection';

 import 'package:meta/meta.dart';
 import 'package:process/process.dart';
 import 'package:xml/xml.dart';

 import '../application_package.dart';
 import '../base/common.dart';
 import '../base/file_system.dart';
 import '../base/io.dart';
 import '../base/logger.dart';
 import '../base/process.dart';
 import '../base/user_messages.dart';
 import '../build_info.dart';
 import '../project.dart';
 import 'android_sdk.dart';
 import 'gradle.dart';

 /// An application package created from an already built Android APK.
 class AndroidApk extends ApplicationPackage implements PrebuiltApplicationPackage {
   AndroidApk({
     required super.id,
     required this.applicationPackage,
     required this.versionCode,
     required this.launchActivity,
   }) : assert(applicationPackage != null),
        assert(launchActivity != null);

   /// Creates a new AndroidApk from an existing APK.
   ///
   /// Returns `null` if the APK was invalid or any required tooling was missing.
   static AndroidApk? fromApk(
     File apk, {
     required AndroidSdk androidSdk,
     required ProcessManager processManager,
     required UserMessages userMessages,
     required Logger logger,
     required ProcessUtils processUtils,
   }) {
     final String? aaptPath = androidSdk.latestVersion?.aaptPath;
     if (aaptPath == null || !processManager.canRun(aaptPath)) {
       logger.printError(userMessages.aaptNotFound);
       return null;
     }

     String apptStdout;
     try {
       apptStdout = processUtils.runSync(
         <String>[
           aaptPath,
           'dump',
           'xmltree',
           apk.path,
           'AndroidManifest.xml',
         ],
         throwOnError: true,
       ).stdout.trim();
     } on ProcessException catch (error) {
       logger.printError('Failed to extract manifest from APK: $error.');
       return null;
     }

     final ApkManifestData? data = ApkManifestData.parseFromXmlDump(apptStdout, logger);

     if (data == null) {
       logger.printError('Unable to read manifest info from ${apk.path}.');
       return null;
     }

     final String? packageName = data.packageName;
     if (packageName == null || data.launchableActivityName == null) {
       logger.printError('Unable to read manifest info from ${apk.path}.');
       return null;
     }

     return AndroidApk(
       id: packageName,
       applicationPackage: apk,
       versionCode: data.versionCode == null ? null : int.tryParse(data.versionCode!),
       launchActivity: '${data.packageName}/${data.launchableActivityName}',
     );
   }

   @override
   final FileSystemEntity applicationPackage;

   /// The path to the activity that should be launched.
   final String launchActivity;

   /// The version code of the APK.
   final int? versionCode;

   /// Creates a new AndroidApk based on the information in the Android manifest.
   static Future<AndroidApk?> fromAndroidProject(
     AndroidProject androidProject, {
     required AndroidSdk? androidSdk,
     required ProcessManager processManager,
     required UserMessages userMessages,
     required ProcessUtils processUtils,
     required Logger logger,
     required FileSystem fileSystem,
   }) async {
     File apkFile;

     if (androidProject.isUsingGradle && androidProject.isSupportedVersion) {
       apkFile = getApkDirectory(androidProject.parent).childFile('app.apk');
       if (apkFile.existsSync()) {
         // Grab information from the .apk. The gradle build script might alter
         // the application Id, so we need to look at what was actually built.
         return AndroidApk.fromApk(
           apkFile,
           androidSdk: androidSdk!,
           processManager: processManager,
           logger: logger,
           userMessages: userMessages,
           processUtils: processUtils,
         );
       }
       // The .apk hasn't been built yet, so we work with what we have. The run
       // command will grab a new AndroidApk after building, to get the updated
       // IDs.
     } else {
       apkFile = fileSystem.file(fileSystem.path.join(getAndroidBuildDirectory(), 'app.apk'));
     }

     final File manifest = androidProject.appManifestFile;

     if (!manifest.existsSync()) {
       logger.printError('AndroidManifest.xml could not be found.');
       logger.printError('Please check ${manifest.path} for errors.');
       return null;
     }

     final String manifestString = manifest.readAsStringSync();
     XmlDocument document;
     try {
       document = XmlDocument.parse(manifestString);
     } on XmlException catch (exception) {
       String manifestLocation;
       if (androidProject.isUsingGradle) {
         manifestLocation = fileSystem.path.join(androidProject.hostAppGradleRoot.path, 'app', 'src', 'main', 'AndroidManifest.xml');
       } else {
         manifestLocation = fileSystem.path.join(androidProject.hostAppGradleRoot.path, 'AndroidManifest.xml');
       }
       logger.printError('AndroidManifest.xml is not a valid XML document.');
       logger.printError('Please check $manifestLocation for errors.');
       throwToolExit('XML Parser error message: $exception');
     }

     final Iterable<XmlElement> manifests = document.findElements('manifest');
     if (manifests.isEmpty) {
       logger.printError('AndroidManifest.xml has no manifest element.');
       logger.printError('Please check ${manifest.path} for errors.');
       return null;
     }
     final String? packageId = manifests.first.getAttribute('package');

     String? launchActivity;
     for (final XmlElement activity in document.findAllElements('activity')) {
       final String? enabled = activity.getAttribute('android:enabled');
       if (enabled != null && enabled == 'false') {
         continue;
       }

       for (final XmlElement element in activity.findElements('intent-filter')) {
         String? actionName = '';
         String? categoryName = '';
         for (final XmlNode node in element.children) {
           if (node is! XmlElement) {
             continue;
           }
           final String? name = node.getAttribute('android:name');
           if (name == 'android.intent.action.MAIN') {
             actionName = name;
           } else if (name == 'android.intent.category.LAUNCHER') {
             categoryName = name;
           }
         }
         if (actionName != null && categoryName != null && actionName.isNotEmpty && categoryName.isNotEmpty) {
           final String? activityName = activity.getAttribute('android:name');
           launchActivity = '$packageId/$activityName';
           break;
         }
       }
     }

     if (packageId == null || launchActivity == null) {
       logger.printError('package identifier or launch activity not found.');
       logger.printError('Please check ${manifest.path} for errors.');
       return null;
     }

     return AndroidApk(
       id: packageId,
       applicationPackage: apkFile,
       versionCode: null,
       launchActivity: launchActivity,
     );
   }

   @override
   String get name => applicationPackage.basename;
 }

 abstract class _Entry {
   const _Entry(this.parent, this.level);

   final _Element? parent;
   final int level;
 }

 class _Element extends _Entry {
   _Element._(this.name, _Element? parent, int level) : super(parent, level);

   factory _Element.fromLine(String line, _Element? parent) {
     //      E: application (line=29)
     final List<String> parts = line.trimLeft().split(' ');
     return _Element._(parts[1], parent, line.length - line.trimLeft().length);
   }

   final List<_Entry> children = <_Entry>[];
   final String? name;

   void addChild(_Entry child) {
     children.add(child);
   }

   _Attribute? firstAttribute(String name) {
     for (final _Attribute child in children.whereType<_Attribute>()) {
       if (child.key?.startsWith(name) ?? false) {
         return child;
       }
     }
     return null;
   }

   _Element? firstElement(String name) {
     for (final _Element child in children.whereType<_Element>()) {
       if (child.name?.startsWith(name) ?? false) {
         return child;
       }
     }
     return null;
   }

   Iterable<_Element> allElements(String name) {
     return children.whereType<_Element>().where((_Element e) => e.name?.startsWith(name) ?? false);
   }
 }

 class _Attribute extends _Entry {
   const _Attribute._(this.key, this.value, _Element? parent, int level) : super(parent, level);

   factory _Attribute.fromLine(String line, _Element parent) {
     //     A: android:label(0x01010001)="hello_world" (Raw: "hello_world")
     const String attributePrefix = 'A: ';
     final List<String> keyVal = line.substring(line.indexOf(attributePrefix) + attributePrefix.length).split('=');
     return _Attribute._(keyVal[0], keyVal[1], parent, line.length - line.trimLeft().length);
   }

   final String? key;
   final String? value;
 }

 class ApkManifestData {
   ApkManifestData._(this._data);

   static bool _isAttributeWithValuePresent(
       _Element baseElement, String childElement, String attributeName, String attributeValue) {
     final Iterable<_Element> allElements = baseElement.allElements(childElement);
     for (final _Element oneElement in allElements) {
       final String? elementAttributeValue = oneElement
           .firstAttribute(attributeName)
           ?.value;
       if (elementAttributeValue != null &&
           elementAttributeValue.startsWith(attributeValue)) {
         return true;
       }
     }
     return false;
   }

   static ApkManifestData? parseFromXmlDump(String data, Logger logger) {
     if (data == null || data.trim().isEmpty) {
       return null;
     }

     final List<String> lines = data.split('\n');
     assert(lines.length > 3);

     final int manifestLine = lines.indexWhere((String line) => line.contains('E: manifest'));
     final _Element manifest = _Element.fromLine(lines[manifestLine], null);
     _Element currentElement = manifest;

     for (final String line in lines.skip(manifestLine)) {
       final String trimLine = line.trimLeft();
       final int level = line.length - trimLine.length;

       // Handle level out
       while (currentElement.parent != null && level <= currentElement.level) {
         currentElement = currentElement.parent!;
       }

       if (level > currentElement.level) {
         switch (trimLine[0]) {
           case 'A':
             currentElement
                 .addChild(_Attribute.fromLine(line, currentElement));
             break;
           case 'E':
             final _Element element = _Element.fromLine(line, currentElement);
             currentElement.addChild(element);
             currentElement = element;
         }
       }
     }

     final _Element? application = manifest.firstElement('application');
     if (application == null) {
       return null;
     }

     final Iterable<_Element> activities = application.allElements('activity');

     _Element? launchActivity;
     for (final _Element activity in activities) {
       final _Attribute? enabled = activity.firstAttribute('android:enabled');
       final Iterable<_Element> intentFilters = activity.allElements('intent-filter');
       final bool isEnabledByDefault = enabled == null;
       final bool isExplicitlyEnabled = enabled != null && (enabled.value?.contains('0xffffffff') ?? false);
       if (!(isEnabledByDefault || isExplicitlyEnabled)) {
         continue;
       }

       for (final _Element element in intentFilters) {
         final bool isMainAction = _isAttributeWithValuePresent(
             element, 'action', 'android:name', '"android.intent.action.MAIN"');
         if (!isMainAction) {
           continue;
         }
         final bool isLauncherCategory = _isAttributeWithValuePresent(
             element, 'category', 'android:name',
             '"android.intent.category.LAUNCHER"');
         if (!isLauncherCategory) {
           continue;
         }
         launchActivity = activity;
         break;
       }
       if (launchActivity != null) {
         break;
       }
     }

     final _Attribute? package = manifest.firstAttribute('package');
     // "io.flutter.examples.hello_world" (Raw: "io.flutter.examples.hello_world")
     final String? packageName = package?.value?.substring(1, package.value?.indexOf('" '));

     if (launchActivity == null) {
       logger.printError('Error running $packageName. Default activity not found');
       return null;
     }

     final _Attribute? nameAttribute = launchActivity.firstAttribute('android:name');
     // "io.flutter.examples.hello_world.MainActivity" (Raw: "io.flutter.examples.hello_world.MainActivity")
     final String? activityName = nameAttribute?.value?.substring(1, nameAttribute.value?.indexOf('" '));

     // Example format: (type 0x10)0x1
     final _Attribute? versionCodeAttr = manifest.firstAttribute('android:versionCode');
     if (versionCodeAttr == null) {
       logger.printError('Error running $packageName. Manifest versionCode not found');
       return null;
     }
     if (versionCodeAttr.value?.startsWith('(type 0x10)') != true) {
       logger.printError('Error running $packageName. Manifest versionCode invalid');
       return null;
     }
     final int? versionCode = versionCodeAttr.value == null ? null : int.tryParse(versionCodeAttr.value!.substring(11));
     if (versionCode == null) {
       logger.printError('Error running $packageName. Manifest versionCode invalid');
       return null;
     }

     final Map<String, Map<String, String>> map = <String, Map<String, String>>{
       if (packageName != null)
         'package': <String, String>{'name': packageName},
       'version-code': <String, String>{'name': versionCode.toString()},
       if (activityName != null)
         'launchable-activity': <String, String>{'name': activityName},
     };

     return ApkManifestData._(map);
   }

   final Map<String, Map<String, String>> _data;

   @visibleForTesting
   Map<String, Map<String, String>> get data =>
       UnmodifiableMapView<String, Map<String, String>>(_data);

   String? get packageName => _data['package'] == null ? null : _data['package']?['name'];

   String? get versionCode => _data['version-code'] == null ? null : _data['version-code']?['name'];

   String? get launchableActivityName {
     return _data['launchable-activity'] == null ? null : _data['launchable-activity']?['name'];
   }

   @override
   String toString() => _data.toString();
 }
	// Copyright 2014 The Flutter Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	import 'dart:collection';

	import 'package:meta/meta.dart';
	import 'package:process/process.dart';
	import 'package:xml/xml.dart';

	import '../application_package.dart';
	import '../base/common.dart';
	import '../base/file_system.dart';
	import '../base/io.dart';
	import '../base/logger.dart';
	import '../base/process.dart';
	import '../base/user_messages.dart';
	import '../build_info.dart';
	import '../project.dart';
	import 'android_sdk.dart';
	import 'gradle.dart';

	/// An application package created from an already built Android APK.
	class AndroidApk extends ApplicationPackage implements PrebuiltApplicationPackage {
	AndroidApk({
	required super.id,
	required this.applicationPackage,
	required this.versionCode,
	required this.launchActivity,
	}) : assert(applicationPackage != null),
	assert(launchActivity != null);

	/// Creates a new AndroidApk from an existing APK.
	///
	/// Returns `null` if the APK was invalid or any required tooling was missing.
	static AndroidApk? fromApk(
	File apk, {
	required AndroidSdk androidSdk,
	required ProcessManager processManager,
	required UserMessages userMessages,
	required Logger logger,
	required ProcessUtils processUtils,
	}) {
	final String? aaptPath = androidSdk.latestVersion?.aaptPath;
	if (aaptPath == null \|\| !processManager.canRun(aaptPath)) {
	logger.printError(userMessages.aaptNotFound);
	return null;
	}

	String apptStdout;
	try {
	apptStdout = processUtils.runSync(
	<String>[
	aaptPath,
	'dump',
	'xmltree',
	apk.path,
	'AndroidManifest.xml',
	],
	throwOnError: true,
	).stdout.trim();
	} on ProcessException catch (error) {
	logger.printError('Failed to extract manifest from APK: $error.');
	return null;
	}

	final ApkManifestData? data = ApkManifestData.parseFromXmlDump(apptStdout, logger);

	if (data == null) {
	logger.printError('Unable to read manifest info from ${apk.path}.');
	return null;
	}

	final String? packageName = data.packageName;
	if (packageName == null \|\| data.launchableActivityName == null) {
	logger.printError('Unable to read manifest info from ${apk.path}.');
	return null;
	}

	return AndroidApk(
	id: packageName,
	applicationPackage: apk,
	versionCode: data.versionCode == null ? null : int.tryParse(data.versionCode!),
	launchActivity: '${data.packageName}/${data.launchableActivityName}',
	);
	}

	@override
	final FileSystemEntity applicationPackage;

	/// The path to the activity that should be launched.
	final String launchActivity;

	/// The version code of the APK.
	final int? versionCode;

	/// Creates a new AndroidApk based on the information in the Android manifest.
	static Future<AndroidApk?> fromAndroidProject(
	AndroidProject androidProject, {
	required AndroidSdk? androidSdk,
	required ProcessManager processManager,
	required UserMessages userMessages,
	required ProcessUtils processUtils,
	required Logger logger,
	required FileSystem fileSystem,
	}) async {
	File apkFile;

	if (androidProject.isUsingGradle && androidProject.isSupportedVersion) {
	apkFile = getApkDirectory(androidProject.parent).childFile('app.apk');
	if (apkFile.existsSync()) {
	// Grab information from the .apk. The gradle build script might alter
	// the application Id, so we need to look at what was actually built.
	return AndroidApk.fromApk(
	apkFile,
	androidSdk: androidSdk!,
	processManager: processManager,
	logger: logger,
	userMessages: userMessages,
	processUtils: processUtils,
	);
	}
	// The .apk hasn't been built yet, so we work with what we have. The run
	// command will grab a new AndroidApk after building, to get the updated
	// IDs.
	} else {
	apkFile = fileSystem.file(fileSystem.path.join(getAndroidBuildDirectory(), 'app.apk'));
	}

	final File manifest = androidProject.appManifestFile;

	if (!manifest.existsSync()) {
	logger.printError('AndroidManifest.xml could not be found.');
	logger.printError('Please check ${manifest.path} for errors.');
	return null;
	}

	final String manifestString = manifest.readAsStringSync();
	XmlDocument document;
	try {
	document = XmlDocument.parse(manifestString);
	} on XmlException catch (exception) {
	String manifestLocation;
	if (androidProject.isUsingGradle) {
	manifestLocation = fileSystem.path.join(androidProject.hostAppGradleRoot.path, 'app', 'src', 'main', 'AndroidManifest.xml');
	} else {
	manifestLocation = fileSystem.path.join(androidProject.hostAppGradleRoot.path, 'AndroidManifest.xml');
	}
	logger.printError('AndroidManifest.xml is not a valid XML document.');
	logger.printError('Please check $manifestLocation for errors.');
	throwToolExit('XML Parser error message: $exception');
	}

	final Iterable<XmlElement> manifests = document.findElements('manifest');
	if (manifests.isEmpty) {
	logger.printError('AndroidManifest.xml has no manifest element.');
	logger.printError('Please check ${manifest.path} for errors.');
	return null;
	}
	final String? packageId = manifests.first.getAttribute('package');

	String? launchActivity;
	for (final XmlElement activity in document.findAllElements('activity')) {
	final String? enabled = activity.getAttribute('android:enabled');
	if (enabled != null && enabled == 'false') {
	continue;
	}

	for (final XmlElement element in activity.findElements('intent-filter')) {
	String? actionName = '';
	String? categoryName = '';
	for (final XmlNode node in element.children) {
	if (node is! XmlElement) {
	continue;
	}
	final String? name = node.getAttribute('android:name');
	if (name == 'android.intent.action.MAIN') {
	actionName = name;
	} else if (name == 'android.intent.category.LAUNCHER') {
	categoryName = name;
	}
	}
	if (actionName != null && categoryName != null && actionName.isNotEmpty && categoryName.isNotEmpty) {
	final String? activityName = activity.getAttribute('android:name');
	launchActivity = '$packageId/$activityName';
	break;
	}
	}
	}

	if (packageId == null \|\| launchActivity == null) {
	logger.printError('package identifier or launch activity not found.');
	logger.printError('Please check ${manifest.path} for errors.');
	return null;
	}

	return AndroidApk(
	id: packageId,
	applicationPackage: apkFile,
	versionCode: null,
	launchActivity: launchActivity,
	);
	}

	@override
	String get name => applicationPackage.basename;
	}

	abstract class _Entry {
	const _Entry(this.parent, this.level);

	final _Element? parent;
	final int level;
	}

	class _Element extends _Entry {
	_Element._(this.name, _Element? parent, int level) : super(parent, level);

	factory _Element.fromLine(String line, _Element? parent) {
	// E: application (line=29)
	final List<String> parts = line.trimLeft().split(' ');
	return _Element._(parts[1], parent, line.length - line.trimLeft().length);
	}

	final List<_Entry> children = <_Entry>[];
	final String? name;

	void addChild(_Entry child) {
	children.add(child);
	}

	_Attribute? firstAttribute(String name) {
	for (final _Attribute child in children.whereType<_Attribute>()) {
	if (child.key?.startsWith(name) ?? false) {
	return child;
	}
	}
	return null;
	}

	_Element? firstElement(String name) {
	for (final _Element child in children.whereType<_Element>()) {
	if (child.name?.startsWith(name) ?? false) {
	return child;
	}
	}
	return null;
	}

	Iterable<_Element> allElements(String name) {
	return children.whereType<_Element>().where((_Element e) => e.name?.startsWith(name) ?? false);
	}
	}

	class _Attribute extends _Entry {
	const _Attribute._(this.key, this.value, _Element? parent, int level) : super(parent, level);

	factory _Attribute.fromLine(String line, _Element parent) {
	// A: android:label(0x01010001)="hello_world" (Raw: "hello_world")
	const String attributePrefix = 'A: ';
	final List<String> keyVal = line.substring(line.indexOf(attributePrefix) + attributePrefix.length).split('=');
	return _Attribute._(keyVal[0], keyVal[1], parent, line.length - line.trimLeft().length);
	}

	final String? key;
	final String? value;
	}

	class ApkManifestData {
	ApkManifestData._(this._data);

	static bool _isAttributeWithValuePresent(
	_Element baseElement, String childElement, String attributeName, String attributeValue) {
	final Iterable<_Element> allElements = baseElement.allElements(childElement);
	for (final _Element oneElement in allElements) {
	final String? elementAttributeValue = oneElement
	.firstAttribute(attributeName)
	?.value;
	if (elementAttributeValue != null &&
	elementAttributeValue.startsWith(attributeValue)) {
	return true;
	}
	}
	return false;
	}

	static ApkManifestData? parseFromXmlDump(String data, Logger logger) {
	if (data == null \|\| data.trim().isEmpty) {
	return null;
	}

	final List<String> lines = data.split('\n');
	assert(lines.length > 3);

	final int manifestLine = lines.indexWhere((String line) => line.contains('E: manifest'));
	final _Element manifest = _Element.fromLine(lines[manifestLine], null);
	_Element currentElement = manifest;

	for (final String line in lines.skip(manifestLine)) {
	final String trimLine = line.trimLeft();
	final int level = line.length - trimLine.length;

	// Handle level out
	while (currentElement.parent != null && level <= currentElement.level) {
	currentElement = currentElement.parent!;
	}

	if (level > currentElement.level) {
	switch (trimLine[0]) {
	case 'A':
	currentElement
	.addChild(_Attribute.fromLine(line, currentElement));
	break;
	case 'E':
	final _Element element = _Element.fromLine(line, currentElement);
	currentElement.addChild(element);
	currentElement = element;
	}
	}
	}

	final _Element? application = manifest.firstElement('application');
	if (application == null) {
	return null;
	}

	final Iterable<_Element> activities = application.allElements('activity');

	_Element? launchActivity;
	for (final _Element activity in activities) {
	final _Attribute? enabled = activity.firstAttribute('android:enabled');
	final Iterable<_Element> intentFilters = activity.allElements('intent-filter');
	final bool isEnabledByDefault = enabled == null;
	final bool isExplicitlyEnabled = enabled != null && (enabled.value?.contains('0xffffffff') ?? false);
	if (!(isEnabledByDefault \|\| isExplicitlyEnabled)) {
	continue;
	}

	for (final _Element element in intentFilters) {
	final bool isMainAction = _isAttributeWithValuePresent(
	element, 'action', 'android:name', '"android.intent.action.MAIN"');
	if (!isMainAction) {
	continue;
	}
	final bool isLauncherCategory = _isAttributeWithValuePresent(
	element, 'category', 'android:name',
	'"android.intent.category.LAUNCHER"');
	if (!isLauncherCategory) {
	continue;
	}
	launchActivity = activity;
	break;
	}
	if (launchActivity != null) {
	break;
	}
	}

	final _Attribute? package = manifest.firstAttribute('package');
	// "io.flutter.examples.hello_world" (Raw: "io.flutter.examples.hello_world")
	final String? packageName = package?.value?.substring(1, package.value?.indexOf('" '));

	if (launchActivity == null) {
	logger.printError('Error running $packageName. Default activity not found');
	return null;
	}

	final _Attribute? nameAttribute = launchActivity.firstAttribute('android:name');
	// "io.flutter.examples.hello_world.MainActivity" (Raw: "io.flutter.examples.hello_world.MainActivity")
	final String? activityName = nameAttribute?.value?.substring(1, nameAttribute.value?.indexOf('" '));

	// Example format: (type 0x10)0x1
	final _Attribute? versionCodeAttr = manifest.firstAttribute('android:versionCode');
	if (versionCodeAttr == null) {
	logger.printError('Error running $packageName. Manifest versionCode not found');
	return null;
	}
	if (versionCodeAttr.value?.startsWith('(type 0x10)') != true) {
	logger.printError('Error running $packageName. Manifest versionCode invalid');
	return null;
	}
	final int? versionCode = versionCodeAttr.value == null ? null : int.tryParse(versionCodeAttr.value!.substring(11));
	if (versionCode == null) {
	logger.printError('Error running $packageName. Manifest versionCode invalid');
	return null;
	}

	final Map<String, Map<String, String>> map = <String, Map<String, String>>{
	if (packageName != null)
	'package': <String, String>{'name': packageName},
	'version-code': <String, String>{'name': versionCode.toString()},
	if (activityName != null)
	'launchable-activity': <String, String>{'name': activityName},
	};

	return ApkManifestData._(map);
	}

	final Map<String, Map<String, String>> _data;

	@visibleForTesting
	Map<String, Map<String, String>> get data =>
	UnmodifiableMapView<String, Map<String, String>>(_data);

	String? get packageName => _data['package'] == null ? null : _data['package']?['name'];

	String? get versionCode => _data['version-code'] == null ? null : _data['version-code']?['name'];

	String? get launchableActivityName {
	return _data['launchable-activity'] == null ? null : _data['launchable-activity']?['name'];
	}

	@override
	String toString() => _data.toString();
	}