Disable code shrinking for release

.gitignore

@@ -42,3 +42,6 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+
+# Secrets
+/android/key.properties

android/app/build.gradle

@@ -25,6 +25,12 @@ apply plugin: 'com.android.application'
 apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
+def keystoreProperties = new Properties()
+def keystorePropertiesFile = rootProject.file('key.properties')
+if (keystorePropertiesFile.exists()) {
+    keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
+}
+
 android {
     compileSdkVersion flutter.compileSdkVersion
     ndkVersion flutter.ndkVersion
@@ -52,11 +58,27 @@ android {
         versionName flutterVersionName
     }
 
+    signingConfigs {
+        release {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            storePassword keystoreProperties['storePassword']
+        }
+    }
     buildTypes {
         release {
-            // TODO: Add your own signing config for the release build.
-            // Signing with the debug keys for now, so `flutter run --release` works.
-            signingConfig signingConfigs.debug
+            minifyEnabled false
+            shrinkResources false
+            signingConfig signingConfigs.release
+
+            /*proguardFiles(
+                    getDefaultProguardFile("proguard-android-optimize.txt"),
+                    // List additional ProGuard rules for the given build type here. By default,
+                    // Android Studio creates and includes an empty rules file for you (located
+                    // at the root directory of each module).
+                    "proguard-rules.pro"
+            )*/
         }
     }
 }
@@ -75,3 +97,6 @@ dependencies {
 
     //implementation "moe.shizuku:manager:$shizuku_version"
 }
+
+
+

android/app/proguard-rules.pro

@@ -0,0 +1,7 @@
+-keep class org.samo_lego.canta.MainActivity {
+    *;
+}
+
+-keep class org.samo_lego.canta.ShizukuPackageInstallerUtils {
+    *;
+}

lib/kotlin_bind.dart

@@ -41,8 +41,9 @@ class KotlinBind {
     try {
       return await platform
           .invokeMethod('reinstallApp', {'packageName': packageName});
-    } on PlatformException {}
-    return false;
+    } on PlatformException {
+      return false;
+    }
   }
 
   Future<AppInfo> getAppInfo(String packageName) async {