using nix for dev

.envrc

@@ -0,0 +1 @@
+use flake .

.gitignore

@@ -45,3 +45,7 @@ app.*.map.json
 /android/app/debug
 /android/app/profile
 /android/app/release
+
+
+
+.direnv

android/build.gradle

@@ -26,6 +26,6 @@ subprojects {
     project.evaluationDependsOn(':app')
 }
 
-task clean(type: Delete) {
+tasks.register("clean", Delete) {
     delete rootProject.buildDir
 }

flake.nix

@@ -0,0 +1,57 @@
+# From https://github.com/babariviere/flutter-nix-hello-world/blob/master/flake.nix
+# And https://github.com/MikiVanousek/flutter-nix-hello-world/blob/fix/nix/android.nix
+{
+  description = "An example project using flutter";
+
+  inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
+  inputs.flake-utils.url = "github:numtide/flake-utils";
+  inputs.flake-compat = {
+    url = "github:edolstra/flake-compat";
+    flake = false;
+  };
+
+  outputs = { self, nixpkgs, flake-utils, ... }:
+    flake-utils.lib.eachDefaultSystem (system:
+      let
+        pkgs = import nixpkgs {
+          inherit system;
+          config.allowUnfree = true;
+          config.android_sdk.accept_license = true;
+        };
+        buildToolsVersionForAapt2 = "34.0.0-rc4";
+      in {
+        devShells.default = let
+          android = pkgs.androidenv.composeAndroidPackages {
+            toolsVersion = "26.1.1";
+            platformToolsVersion = "34.0.5";
+            buildToolsVersions = [ buildToolsVersionForAapt2 "30.0.3" ];
+            # buildToolsVersions = [ "30.0.3" ];
+            includeEmulator = true;
+            emulatorVersion = "34.1.9";
+            platformVersions = [ "28" "29" "30" "31" "32" "33" "34" ];
+            includeSources = false;
+            includeSystemImages = false;
+            systemImageTypes = [ "google_apis_playstore" ];
+            abiVersions = [ "armeabi-v7a" "arm64-v8a" ];
+            cmakeVersions = [ "3.10.2" ];
+            includeNDK = true;
+            ndkVersions = [ "22.0.7026061" ];
+            useGoogleAPIs = false;
+            useGoogleTVAddOns = false;
+          };
+        in pkgs.mkShell {
+          buildInputs = with pkgs; [
+            # from pkgs
+            flutter
+            jdk17
+            #from ./nix/*
+            android.platform-tools
+          ];
+
+          ANDROID_HOME = "${android.androidsdk}/libexec/android-sdk";
+          GRADLE_OPTS = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${android.androidsdk}/libexec/android-sdk/build-tools/${buildToolsVersionForAapt2}/aapt2";
+          JAVA_HOME = pkgs.jdk17;
+          ANDROID_AVD_HOME = (toString ./.) + "/.android/avd";
+        };
+      });
+}