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@RatakondalaArun
RatakondalaArun committed Jul 31, 2022
1 parent 208a070 commit 6222def
Showing 1 changed file with 29 additions and 65 deletions.
94 changes: 29 additions & 65 deletions lib/android.dart
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Expand Up @@ -29,8 +29,7 @@ List<AndroidIconTemplate> androidIcons = <AndroidIconTemplate>[
AndroidIconTemplate(directoryName: 'mipmap-xxxhdpi', size: 192),
];

void createDefaultIcons(
Map<String, dynamic> flutterLauncherIconsConfig, String? flavor) {
void createDefaultIcons(Map<String, dynamic> flutterLauncherIconsConfig, String? flavor) {
printStatus('Creating default icons Android');
final String filePath = getAndroidIconPath(flutterLauncherIconsConfig);
final Image? image = decodeImageFile(filePath);
Expand All @@ -48,51 +47,42 @@ void createDefaultIcons(
}
overwriteAndroidManifestWithNewLauncherIcon(iconName, androidManifestFile);
} else {
printStatus(
'Overwriting the default Android launcher icon with a new icon');
printStatus('Overwriting the default Android launcher icon with a new icon');
for (AndroidIconTemplate template in androidIcons) {
overwriteExistingIcons(
template, image, constants.androidFileName, flavor);
overwriteExistingIcons(template, image, constants.androidFileName, flavor);
}
overwriteAndroidManifestWithNewLauncherIcon(
constants.androidDefaultIconName, androidManifestFile);
overwriteAndroidManifestWithNewLauncherIcon(constants.androidDefaultIconName, androidManifestFile);
}
}

/// Ensures that the Android icon name is in the correct format
bool isAndroidIconNameCorrectFormat(String iconName) {
// assure the icon only consists of lowercase letters, numbers and underscore
if (!RegExp(r'^[a-z0-9_]+$').hasMatch(iconName)) {
throw const InvalidAndroidIconNameException(
constants.errorIncorrectIconName);
throw const InvalidAndroidIconNameException(constants.errorIncorrectIconName);
}
return true;
}

void createAdaptiveIcons(
Map<String, dynamic> flutterLauncherIconsConfig, String? flavor) {
void createAdaptiveIcons(Map<String, dynamic> flutterLauncherIconsConfig, String? flavor) {
printStatus('Creating adaptive icons Android');

// Retrieve the necessary Flutter Launcher Icons configuration from the pubspec.yaml file
final String backgroundConfig =
flutterLauncherIconsConfig['adaptive_icon_background'];
final String foregroundImagePath =
flutterLauncherIconsConfig['adaptive_icon_foreground'];
final String backgroundConfig = flutterLauncherIconsConfig['adaptive_icon_background'];
final String foregroundImagePath = flutterLauncherIconsConfig['adaptive_icon_foreground'];
final Image? foregroundImage = decodeImageFile(foregroundImagePath);
if (foregroundImage == null) {
return;
}

// Create adaptive icon foreground images
for (AndroidIconTemplate androidIcon in adaptiveForegroundIcons) {
overwriteExistingIcons(androidIcon, foregroundImage,
constants.androidAdaptiveForegroundFileName, flavor);
overwriteExistingIcons(androidIcon, foregroundImage, constants.androidAdaptiveForegroundFileName, flavor);
}

// Create adaptive icon background
if (isAdaptiveIconConfigPngFile(backgroundConfig)) {
createAdaptiveBackgrounds(
flutterLauncherIconsConfig, backgroundConfig, flavor);
createAdaptiveBackgrounds(flutterLauncherIconsConfig, backgroundConfig, flavor);
} else {
createAdaptiveIconMipmapXmlFile(flutterLauncherIconsConfig, flavor);
updateColorsXmlFile(backgroundConfig, flavor);
Expand All @@ -113,28 +103,22 @@ void updateColorsXmlFile(String backgroundConfig, String? flavor) {
updateColorsFile(colorsXml, backgroundConfig);
} else {
printStatus('No colors.xml file found in your Android project');
printStatus(
'Creating colors.xml file and adding it to your Android project');
printStatus('Creating colors.xml file and adding it to your Android project');
createNewColorsFile(backgroundConfig, flavor);
}
}

/// Creates the xml file required for the adaptive launcher icon
/// FILE LOCATED HERE: res/mipmap-anydpi/{icon-name-from-yaml-config}.xml
void createAdaptiveIconMipmapXmlFile(
Map<String, dynamic> flutterLauncherIconsConfig, String? flavor) {
void createAdaptiveIconMipmapXmlFile(Map<String, dynamic> flutterLauncherIconsConfig, String? flavor) {
if (isCustomAndroidFile(flutterLauncherIconsConfig)) {
File(constants.androidAdaptiveXmlFolder(flavor) +
getNewIconName(flutterLauncherIconsConfig) +
'.xml')
File(constants.androidAdaptiveXmlFolder(flavor) + getNewIconName(flutterLauncherIconsConfig) + '.xml')
.create(recursive: true)
.then((File adaptiveIcon) {
adaptiveIcon.writeAsString(xml_template.icLauncherXml);
});
} else {
File(constants.androidAdaptiveXmlFolder(flavor) +
constants.androidDefaultIconName +
'.xml')
File(constants.androidAdaptiveXmlFolder(flavor) + constants.androidDefaultIconName + '.xml')
.create(recursive: true)
.then((File adaptiveIcon) {
adaptiveIcon.writeAsString(xml_template.icLauncherXml);
Expand All @@ -143,8 +127,8 @@ void createAdaptiveIconMipmapXmlFile(
}

/// creates adaptive background using png image
void createAdaptiveBackgrounds(Map<String, dynamic> yamlConfig,
String adaptiveIconBackgroundImagePath, String? flavor) {
void createAdaptiveBackgrounds(
Map<String, dynamic> yamlConfig, String adaptiveIconBackgroundImagePath, String? flavor) {
final String filePath = adaptiveIconBackgroundImagePath;
final Image? image = decodeImageFile(filePath);
if (image == null) {
Expand All @@ -154,24 +138,19 @@ void createAdaptiveBackgrounds(Map<String, dynamic> yamlConfig,
// creates a png image (ic_adaptive_background.png) for the adaptive icon background in each of the locations
// it is required
for (AndroidIconTemplate androidIcon in adaptiveForegroundIcons) {
saveNewImages(androidIcon, image,
constants.androidAdaptiveBackgroundFileName, flavor);
saveNewImages(androidIcon, image, constants.androidAdaptiveBackgroundFileName, flavor);
}

// Creates the xml file required for the adaptive launcher icon
// FILE LOCATED HERE: res/mipmap-anydpi/{icon-name-from-yaml-config}.xml
if (isCustomAndroidFile(yamlConfig)) {
File(constants.androidAdaptiveXmlFolder(flavor) +
getNewIconName(yamlConfig) +
'.xml')
File(constants.androidAdaptiveXmlFolder(flavor) + getNewIconName(yamlConfig) + '.xml')
.create(recursive: true)
.then((File adaptiveIcon) {
adaptiveIcon.writeAsString(xml_template.icLauncherDrawableBackgroundXml);
});
} else {
File(constants.androidAdaptiveXmlFolder(flavor) +
constants.androidDefaultIconName +
'.xml')
File(constants.androidAdaptiveXmlFolder(flavor) + constants.androidDefaultIconName + '.xml')
.create(recursive: true)
.then((File adaptiveIcon) {
adaptiveIcon.writeAsString(xml_template.icLauncherDrawableBackgroundXml);
Expand All @@ -181,9 +160,7 @@ void createAdaptiveBackgrounds(Map<String, dynamic> yamlConfig,

/// Creates a colors.xml file if it was missing from android/app/src/main/res/values/colors.xml
void createNewColorsFile(String backgroundColor, String? flavor) {
File(constants.androidColorsFile(flavor))
.create(recursive: true)
.then((File colorsFile) {
File(constants.androidColorsFile(flavor)).create(recursive: true).then((File colorsFile) {
colorsFile.writeAsString(xml_template.colorsXml).then((File file) {
updateColorsFile(colorsFile, backgroundColor);
});
Expand All @@ -208,8 +185,7 @@ void updateColorsFile(File colorsFile, String backgroundColor) {

// Add new line if we didn't find an existing value
if (!foundExisting) {
lines.insert(lines.length - 1,
'\t<color name="ic_launcher_background">$backgroundColor</color>');
lines.insert(lines.length - 1, '\t<color name="ic_launcher_background">$backgroundColor</color>');
}

colorsFile.writeAsStringSync(lines.join('\n'));
Expand Down Expand Up @@ -239,10 +215,7 @@ void overwriteExistingIcons(
String? flavor,
) {
final Image newFile = createResizedImage(template.size, image);
File(constants.androidResFolder(flavor) +
template.directoryName +
'/' +
filename)
File(constants.androidResFolder(flavor) + template.directoryName + '/' + filename)
.create(recursive: true)
.then((File file) {
file.writeAsBytesSync(encodePng(newFile));
Expand All @@ -252,13 +225,9 @@ void overwriteExistingIcons(
/// Saves new launcher icons to the project, keeping the old launcher icons.
/// Note: Do not change interpolation unless you end up with better results
/// https://github.com/fluttercommunity/flutter_launcher_icons/issues/101#issuecomment-495528733
void saveNewImages(AndroidIconTemplate template, Image image,
String iconFilePath, String? flavor) {
void saveNewImages(AndroidIconTemplate template, Image image, String iconFilePath, String? flavor) {
final Image newFile = createResizedImage(template.size, image);
File(constants.androidResFolder(flavor) +
template.directoryName +
'/' +
iconFilePath)
File(constants.androidResFolder(flavor) + template.directoryName + '/' + iconFilePath)
.create(recursive: true)
.then((File file) {
file.writeAsBytesSync(encodePng(newFile));
Expand All @@ -269,19 +238,15 @@ void saveNewImages(AndroidIconTemplate template, Image image,
/// with the new icon name (only if it has changed)
///
/// Note: default iconName = "ic_launcher"
Future<void> overwriteAndroidManifestWithNewLauncherIcon(
String iconName, File androidManifestFile) async {
Future<void> overwriteAndroidManifestWithNewLauncherIcon(String iconName, File androidManifestFile) async {
// we do not use `file.readAsLinesSync()` here because that always gets rid of the last empty newline
final List<String> oldManifestLines =
(await androidManifestFile.readAsString()).split('\n');
final List<String> transformedLines =
transformAndroidManifestWithNewLauncherIcon(oldManifestLines, iconName);
final List<String> oldManifestLines = (await androidManifestFile.readAsString()).split('\n');
final List<String> transformedLines = transformAndroidManifestWithNewLauncherIcon(oldManifestLines, iconName);
await androidManifestFile.writeAsString(transformedLines.join('\n'));
}

/// Updates only the line containing android:icon with the specified iconName
List<String> transformAndroidManifestWithNewLauncherIcon(
List<String> oldManifestLines, String iconName) {
List<String> transformAndroidManifestWithNewLauncherIcon(List<String> oldManifestLines, String iconName) {
return oldManifestLines.map((String line) {
if (line.contains('android:icon')) {
// Using RegExp replace the value of android:icon to point to the new icon
Expand All @@ -291,8 +256,7 @@ List<String> transformAndroidManifestWithNewLauncherIcon(
// repeat as often as wanted with no quote at start: [^"]*(\"[^"]*)*
// escaping the slash to place in string: [^"]*(\\"[^"]*)*"
// result: any string which does only include escaped quotes
return line.replaceAll(RegExp(r'android:icon="[^"]*(\\"[^"]*)*"'),
'android:icon="@mipmap/$iconName"');
return line.replaceAll(RegExp(r'android:icon="[^"]*(\\"[^"]*)*"'), 'android:icon="@mipmap/$iconName"');
} else {
return line;
}
Expand Down

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