Rewrite as Flutter app and rename to Quicklogmain

Drop the Go/Fyne implementation and replace it with a native Flutter app
targeting Android (primary) and Linux desktop (development). Rename
quicklogger -> quicklog throughout (project, applicationId, MethodChannel,
cache filename, AppBar title, Linux binary).

Storage on Android moves to /Android/data/org.buetow.quicklog/files/ so
MANAGE_EXTERNAL_STORAGE is no longer required. Share-intent receive is
preserved via a Kotlin ShareActivity that writes shared text to the app
cache, which Dart reads through a MethodChannel on app resume; MainActivity
also accepts SEND directly so launchers that prefer the main target work.

New since the Fyne version: an entry browser screen with read-only viewer
and long-press delete.

Cross-compiling to Android ARM from amd64 Linux no longer needs Docker /
fyne-cross / NDK -- flutter build apk emits ARM binaries directly.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

28 files changed, 368 insertions, 36 deletions

diff --git a/android/.gitignore b/android/.gitignore
new file mode 100644
index 0000000..be3943c
--- /dev/null
+++ b/android/.gitignore
@@ -0,0 +1,14 @@
+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+.cxx/
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks
diff --git a/android/AndroidManifest.xml b/android/AndroidManifest.xml
deleted file mode 100644
index 0e6115e..0000000
--- a/android/AndroidManifest.xml
+++ /dev/null
@@ -1,36 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<manifest xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:tools="http://schemas.android.com/tools"
-    package="org.buetow.quicklogger">
-
-    <application>
-        <!-- Also accept SEND on the main Go activity (some launchers prefer direct targets) -->
-        <activity
-            android:name="org.golang.app.GoNativeActivity"
-            android:exported="true"
-            tools:node="merge">
-            <intent-filter>
-                <action android:name="android.intent.action.SEND" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:mimeType="text/plain" />
-                <data android:mimeType="text/*" />
-            </intent-filter>
-        </activity>
-
-        <!-- Share receiver activity: writes text to cache and launches main app -->
-        <activity
-            android:name=".ShareActivity"
-            android:exported="true"
-            android:excludeFromRecents="true"
-            android:launchMode="singleTask"
-            android:taskAffinity=""
-            android:theme="@android:style/Theme.Translucent.NoTitleBar">
-            <intent-filter>
-                <action android:name="android.intent.action.SEND" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:mimeType="text/plain" />
-                <data android:mimeType="text/*" />
-            </intent-filter>
-        </activity>
-    </application>
-</manifest>
diff --git a/android/app/build.gradle.kts b/android/app/build.gradle.kts
new file mode 100644
index 0000000..3333b8a
--- /dev/null
+++ b/android/app/build.gradle.kts
@@ -0,0 +1,44 @@
+plugins {
+    id("com.android.application")
+    id("kotlin-android")
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id("dev.flutter.flutter-gradle-plugin")
+}
+
+android {
+    namespace = "org.buetow.quicklog"
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_17.toString()
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = "org.buetow.quicklog"
+        // You can update the following values to match your application needs.
+        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    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.getByName("debug")
+        }
+    }
+}
+
+flutter {
+    source = "../.."
+}
diff --git a/android/app/src/debug/AndroidManifest.xml b/android/app/src/debug/AndroidManifest.xml
new file mode 100644
index 0000000..399f698
--- /dev/null
+++ b/android/app/src/debug/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/android/app/src/main/AndroidManifest.xml b/android/app/src/main/AndroidManifest.xml
new file mode 100644
index 0000000..6eddff0
--- /dev/null
+++ b/android/app/src/main/AndroidManifest.xml
@@ -0,0 +1,56 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <application
+        android:label="Quicklog"
+        android:name="${applicationName}"
+        android:icon="@mipmap/ic_launcher">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true"
+            android:launchMode="singleTop"
+            android:taskAffinity=""
+            android:theme="@style/LaunchTheme"
+            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+            android:hardwareAccelerated="true"
+            android:windowSoftInputMode="adjustResize">
+            <meta-data
+              android:name="io.flutter.embedding.android.NormalTheme"
+              android:resource="@style/NormalTheme"
+              />
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN"/>
+                <category android:name="android.intent.category.LAUNCHER"/>
+            </intent-filter>
+            <!-- Some launchers prefer routing SEND directly to the main activity. -->
+            <intent-filter>
+                <action android:name="android.intent.action.SEND"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+                <data android:mimeType="text/plain"/>
+                <data android:mimeType="text/*"/>
+            </intent-filter>
+        </activity>
+        <!-- Translucent share receiver: writes shared text to cache then hands off to MainActivity. -->
+        <activity
+            android:name=".ShareActivity"
+            android:exported="true"
+            android:excludeFromRecents="true"
+            android:launchMode="singleTask"
+            android:taskAffinity=""
+            android:theme="@android:style/Theme.Translucent.NoTitleBar">
+            <intent-filter>
+                <action android:name="android.intent.action.SEND"/>
+                <category android:name="android.intent.category.DEFAULT"/>
+                <data android:mimeType="text/plain"/>
+                <data android:mimeType="text/*"/>
+            </intent-filter>
+        </activity>
+        <meta-data
+            android:name="flutterEmbedding"
+            android:value="2" />
+    </application>
+    <queries>
+        <intent>
+            <action android:name="android.intent.action.PROCESS_TEXT"/>
+            <data android:mimeType="text/plain"/>
+        </intent>
+    </queries>
+</manifest>
diff --git a/android/app/src/main/kotlin/org/buetow/quicklog/MainActivity.kt b/android/app/src/main/kotlin/org/buetow/quicklog/MainActivity.kt
new file mode 100644
index 0000000..426589f
--- /dev/null
+++ b/android/app/src/main/kotlin/org/buetow/quicklog/MainActivity.kt
@@ -0,0 +1,56 @@
+package org.buetow.quicklog
+
+import android.content.Intent
+import android.os.Bundle
+import io.flutter.embedding.android.FlutterActivity
+import io.flutter.embedding.engine.FlutterEngine
+import io.flutter.plugin.common.MethodChannel
+import java.io.File
+
+class MainActivity : FlutterActivity() {
+    private val channelName = "org.buetow.quicklog/share"
+    private val cacheFilename = "quicklog-shared.txt"
+
+    override fun configureFlutterEngine(flutterEngine: FlutterEngine) {
+        super.configureFlutterEngine(flutterEngine)
+        MethodChannel(flutterEngine.dartExecutor.binaryMessenger, channelName)
+            .setMethodCallHandler { call, result ->
+                when (call.method) {
+                    "readSharedTextFromCache" -> result.success(readCache())
+                    "clearSharedTextCache" -> {
+                        clearCache()
+                        result.success(null)
+                    }
+                    else -> result.notImplemented()
+                }
+            }
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        captureSendIntent(intent)
+    }
+
+    override fun onNewIntent(intent: Intent) {
+        super.onNewIntent(intent)
+        captureSendIntent(intent)
+    }
+
+    private fun captureSendIntent(intent: Intent?) {
+        if (intent?.action == Intent.ACTION_SEND && intent.type?.startsWith("text/") == true) {
+            intent.getStringExtra(Intent.EXTRA_TEXT)?.let { text ->
+                File(cacheDir, cacheFilename).writeText(text)
+            }
+        }
+    }
+
+    private fun readCache(): String? {
+        val f = File(cacheDir, cacheFilename)
+        return if (f.exists()) f.readText() else null
+    }
+
+    private fun clearCache() {
+        val f = File(cacheDir, cacheFilename)
+        if (f.exists()) f.delete()
+    }
+}
diff --git a/android/app/src/main/kotlin/org/buetow/quicklog/ShareActivity.kt b/android/app/src/main/kotlin/org/buetow/quicklog/ShareActivity.kt
new file mode 100644
index 0000000..15261e6
--- /dev/null
+++ b/android/app/src/main/kotlin/org/buetow/quicklog/ShareActivity.kt
@@ -0,0 +1,54 @@
+package org.buetow.quicklog
+
+import android.app.Activity
+import android.content.Intent
+import android.os.Bundle
+import android.util.Log
+import java.io.File
+
+class ShareActivity : Activity() {
+    companion object {
+        private const val TAG = "QuicklogShare"
+        private const val CACHE_FILENAME = "quicklog-shared.txt"
+    }
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        handleShare(intent)
+        launchMain()
+        finish()
+    }
+
+    private fun handleShare(intent: Intent?) {
+        if (intent == null) return
+        val type = intent.type
+        if (intent.action == Intent.ACTION_SEND && type != null && type.startsWith("text/")) {
+            val sharedText = intent.getStringExtra(Intent.EXTRA_TEXT)
+            if (sharedText != null) {
+                try {
+                    val f = File(cacheDir, CACHE_FILENAME)
+                    f.writeText(sharedText)
+                    Log.i(TAG, "Wrote shared text to ${f.absolutePath}")
+                } catch (e: Exception) {
+                    Log.e(TAG, "Error writing shared text", e)
+                }
+            }
+        }
+    }
+
+    private fun launchMain() {
+        try {
+            val launch = Intent(this, MainActivity::class.java).apply {
+                action = Intent.ACTION_MAIN
+                addCategory(Intent.CATEGORY_LAUNCHER)
+                flags = Intent.FLAG_ACTIVITY_NEW_TASK or
+                        Intent.FLAG_ACTIVITY_SINGLE_TOP or
+                        Intent.FLAG_ACTIVITY_CLEAR_TOP or
+                        Intent.FLAG_ACTIVITY_REORDER_TO_FRONT
+            }
+            startActivity(launch)
+        } catch (t: Throwable) {
+            Log.e(TAG, "Failed to launch main activity", t)
+        }
+    }
+}
diff --git a/android/app/src/main/res/drawable-hdpi/ic_launcher_foreground.png b/android/app/src/main/res/drawable-hdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..a454844
--- /dev/null
+++ b/android/app/src/main/res/drawable-hdpi/ic_launcher_foreground.png
diff --git a/android/app/src/main/res/drawable-mdpi/ic_launcher_foreground.png b/android/app/src/main/res/drawable-mdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..7a9bc40
--- /dev/null
+++ b/android/app/src/main/res/drawable-mdpi/ic_launcher_foreground.png
diff --git a/android/app/src/main/res/drawable-v21/launch_background.xml b/android/app/src/main/res/drawable-v21/launch_background.xml
new file mode 100644
index 0000000..f74085f
--- /dev/null
+++ b/android/app/src/main/res/drawable-v21/launch_background.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/android/app/src/main/res/drawable-xhdpi/ic_launcher_foreground.png b/android/app/src/main/res/drawable-xhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..7badce7
--- /dev/null
+++ b/android/app/src/main/res/drawable-xhdpi/ic_launcher_foreground.png
diff --git a/android/app/src/main/res/drawable-xxhdpi/ic_launcher_foreground.png b/android/app/src/main/res/drawable-xxhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..5ed2063
--- /dev/null
+++ b/android/app/src/main/res/drawable-xxhdpi/ic_launcher_foreground.png
diff --git a/android/app/src/main/res/drawable-xxxhdpi/ic_launcher_foreground.png b/android/app/src/main/res/drawable-xxxhdpi/ic_launcher_foreground.png
new file mode 100644
index 0000000..089a22a
--- /dev/null
+++ b/android/app/src/main/res/drawable-xxxhdpi/ic_launcher_foreground.png
diff --git a/android/app/src/main/res/drawable/launch_background.xml b/android/app/src/main/res/drawable/launch_background.xml
new file mode 100644
index 0000000..304732f
--- /dev/null
+++ b/android/app/src/main/res/drawable/launch_background.xml
@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>
diff --git a/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml b/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
new file mode 100644
index 0000000..c79c58a
--- /dev/null
+++ b/android/app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+  <background android:drawable="@color/ic_launcher_background"/>
+  <foreground>
+      <inset
+          android:drawable="@drawable/ic_launcher_foreground"
+          android:inset="16%" />
+  </foreground>
+</adaptive-icon>
diff --git a/android/app/src/main/res/mipmap-hdpi/ic_launcher.png b/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
new file mode 100644
index 0000000..f75d22f
--- /dev/null
+++ b/android/app/src/main/res/mipmap-hdpi/ic_launcher.png
diff --git a/android/app/src/main/res/mipmap-mdpi/ic_launcher.png b/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
new file mode 100644
index 0000000..d24ba69
--- /dev/null
+++ b/android/app/src/main/res/mipmap-mdpi/ic_launcher.png
diff --git a/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png b/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
new file mode 100644
index 0000000..b49236f
--- /dev/null
+++ b/android/app/src/main/res/mipmap-xhdpi/ic_launcher.png
diff --git a/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
new file mode 100644
index 0000000..a20c849
--- /dev/null
+++ b/android/app/src/main/res/mipmap-xxhdpi/ic_launcher.png
diff --git a/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
new file mode 100644
index 0000000..9a1fafa
--- /dev/null
+++ b/android/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png
diff --git a/android/app/src/main/res/values-night/styles.xml b/android/app/src/main/res/values-night/styles.xml
new file mode 100644
index 0000000..06952be
--- /dev/null
+++ b/android/app/src/main/res/values-night/styles.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/android/app/src/main/res/values/colors.xml b/android/app/src/main/res/values/colors.xml
new file mode 100644
index 0000000..c5d5899
--- /dev/null
+++ b/android/app/src/main/res/values/colors.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="ic_launcher_background">#FFFFFF</color>
+</resources>
\ No newline at end of file
diff --git a/android/app/src/main/res/values/styles.xml b/android/app/src/main/res/values/styles.xml
new file mode 100644
index 0000000..cb1ef88
--- /dev/null
+++ b/android/app/src/main/res/values/styles.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>
diff --git a/android/app/src/profile/AndroidManifest.xml b/android/app/src/profile/AndroidManifest.xml
new file mode 100644
index 0000000..399f698
--- /dev/null
+++ b/android/app/src/profile/AndroidManifest.xml
@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>
diff --git a/android/build.gradle.kts b/android/build.gradle.kts
new file mode 100644
index 0000000..dbee657
--- /dev/null
+++ b/android/build.gradle.kts
@@ -0,0 +1,24 @@
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+val newBuildDir: Directory =
+    rootProject.layout.buildDirectory
+        .dir("../../build")
+        .get()
+rootProject.layout.buildDirectory.value(newBuildDir)
+
+subprojects {
+    val newSubprojectBuildDir: Directory = newBuildDir.dir(project.name)
+    project.layout.buildDirectory.value(newSubprojectBuildDir)
+}
+subprojects {
+    project.evaluationDependsOn(":app")
+}
+
+tasks.register<Delete>("clean") {
+    delete(rootProject.layout.buildDirectory)
+}
diff --git a/android/gradle.properties b/android/gradle.properties
new file mode 100644
index 0000000..fbee1d8
--- /dev/null
+++ b/android/gradle.properties
@@ -0,0 +1,2 @@
+org.gradle.jvmargs=-Xmx8G -XX:MaxMetaspaceSize=4G -XX:ReservedCodeCacheSize=512m -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
diff --git a/android/gradle/wrapper/gradle-wrapper.properties b/android/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..e4ef43f
--- /dev/null
+++ b/android/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,5 @@
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.14-all.zip
diff --git a/android/settings.gradle.kts b/android/settings.gradle.kts
new file mode 100644
index 0000000..ca7fe06
--- /dev/null
+++ b/android/settings.gradle.kts
@@ -0,0 +1,26 @@
+pluginManagement {
+    val flutterSdkPath =
+        run {
+            val properties = java.util.Properties()
+            file("local.properties").inputStream().use { properties.load(it) }
+            val flutterSdkPath = properties.getProperty("flutter.sdk")
+            require(flutterSdkPath != null) { "flutter.sdk not set in local.properties" }
+            flutterSdkPath
+        }
+
+    includeBuild("$flutterSdkPath/packages/flutter_tools/gradle")
+
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+
+plugins {
+    id("dev.flutter.flutter-plugin-loader") version "1.0.0"
+    id("com.android.application") version "8.11.1" apply false
+    id("org.jetbrains.kotlin.android") version "2.2.20" apply false
+}
+
+include(":app")