android-slim-bindings

Name: android-slim-bindings
Author: Redth

15stars2forks

How to install android-slim-bindings?

redth/maui-skillz/android-slim-bindings

$npx -y skills add Redth/maui-skillz --skill android-slim-bindings

Installs into the current project.

Summary

Create and update slim/native platform interop bindings for Android in .NET MAUI and .NET for Android projects. Guides through creating Java/Kotlin wrappers, configuring Gradle projects, resolving Maven dependencies, generating C# bindings, and integrating native Android librarie

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SKILL.md

1	# When to use this skill
2
3	Activate this skill when the user asks:
4	- How do I create Android bindings for a native library?
5	- How do I wrap an Android SDK for use in .NET MAUI?
6	- How do I create slim bindings for Android?
7	- How do I use Native Library Interop for Android?
8	- How do I bind a Kotlin library to .NET?
9	- How do I bind a Java library to .NET?
10	- How do I integrate an AAR or JAR into .NET MAUI?
11	- How do I create a Java/Kotlin wrapper for a native Android library?
12	- How do I update Android bindings when the native SDK changes?
13	- How do I fix Android binding build errors?
14	- How do I expose native Android APIs to C#?
15	- How do I resolve Maven dependencies for Android bindings?
16	- How do I handle AndroidX dependencies in bindings?
17	- How do I fix "Java dependency is not satisfied" errors?
18	- How do I use AndroidMavenLibrary in my binding project?
19
20	# Overview
21
22	This skill guides the creation of Native Library Interop (Slim Bindings) for Android. This modern approach creates a thin native Java/Kotlin wrapper exposing only the APIs you need from a native Android library, making bindings easier to create and maintain.
23
24	## When to Use Slim Bindings vs Traditional Bindings
25
26	\| Scenario \| Recommended Approach \|
27	\|----------\|---------------------\|
28	\| Need only a subset of library functionality \| Slim Bindings ✓ \|
29	\| Easier maintenance when SDK updates \| Slim Bindings ✓ \|
30	\| Prefer working in Java/Kotlin for wrapper \| Slim Bindings ✓ \|
31	\| Better isolation from breaking changes \| Slim Bindings ✓ \|
32	\| Complex libraries with many dependencies \| Slim Bindings ✓ \|
33	\| Need entire library API surface \| Traditional Bindings \|
34	\| Creating bindings for third-party developers \| Traditional Bindings \|
35	\| Already maintaining traditional bindings \| Traditional Bindings \|
36
37	# Inputs
38
39	\| Parameter \| Required \| Example \| Notes \|
40	\|-----------\|----------\|---------\|-------\|
41	\| libraryName \| yes \| `FirebaseMessaging`, `OkHttp` \| Name of the native Android library to bind \|
42	\| bindingProjectName \| yes \| `MyBinding.Android` \| Name for the C# binding project \|
43	\| dependencySource \| no \| `maven`, `aar`, `jar` \| How the native library is distributed \|
44	\| targetFrameworks \| no \| `net9.0-android` \| Target frameworks (default: latest .NET Android) \|
45	\| exposedApis \| no \| List of specific APIs \| Which native APIs to expose (helps scope the wrapper) \|
46	\| mavenCoordinates \| no \| `com.example:library:1.0.0` \| Maven coordinates if library is from Maven repository \|
47
48	# Project Structure
49
50	The recommended project structure for Native Library Interop:
51
52	```
53	MyBinding/
54	├── android/
55	│ ├── native/ # Android Studio/Gradle project
56	│ │ ├── app/
57	│ │ │ ├── src/main/
58	│ │ │ │ └── java/com/example/mybinding/
59	│ │ │ │ └── DotnetMyBinding.java # Java wrapper implementation
60	│ │ │ │ └── kotlin/com/example/mybinding/
61	│ │ │ │ └── DotnetMyBinding.kt # Or Kotlin wrapper
62	│ │ │ └── build.gradle.kts
63	│ │ ├── settings.gradle.kts
64	│ │ └── build.gradle.kts
65	│ └── MyBinding.Android.Binding/
66	│ ├── MyBinding.Android.Binding.csproj
67	│ └── Transforms/
68	│ └── Metadata.xml
69	├── sample/
70	│ └── MauiSample/ # Sample MAUI app
71	│ ├── MauiSample.csproj
72	│ └── MainPage.xaml.cs
73	└── README.md
74	```
75
76	# Step-by-step Process
77
78	## Step 1: Analyze Dependencies First
79
80	Before creating any bindings, analyze the complete dependency tree of your target library. This is the most critical step and where most binding projects fail.
81
82	### Prerequisites
83
84	Ensure you have:
85	- JDK 17+
86	- Android SDK with `ANDROID_HOME` environment variable set
87	- .NET SDK 9+ (recommended for Java Dependency Verification)
88
89	> Note: You don't need Gradle installed globally—we'll use the Gradle Wrapper which downloads the correct version automatically.
90
91	## Step 2: Create the Android Library Project
92
93	There are multiple approaches to create the native Android wrapper project. Choose the one that best fits your workflow.
94
95	### Option A: Use Android Studio (Recommended for GUI)
96
97	The most reliable way to create a properly configured Android library:
98
99	1. Open Android Studio
100	2. File → New → New Project
101	3. Select "No Activity" template
102	4. Configure:
103	- Name: `MyBindingNative`
104	- Package name: `com.example.mybinding`
105	- Language: Java or Kotlin
106	- Minimum SDK: API 21
107	5. File → New → New Module
108	6. Select "Android Library"
109	7. Name it `app` (or your preferred

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android-slim-bindings

15stars2forks

View on GitHub

How to install android-slim-bindings?

redth/maui-skillz/android-slim-bindings

$npx -y skills add Redth/maui-skillz --skill android-slim-bindings

Installs into the current project.

Summary

Files · 1

View on GitHub

SKILL.md

1	# When to use this skill
2
3	Activate this skill when the user asks:
4	- How do I create Android bindings for a native library?
5	- How do I wrap an Android SDK for use in .NET MAUI?
6	- How do I create slim bindings for Android?
7	- How do I use Native Library Interop for Android?
8	- How do I bind a Kotlin library to .NET?
9	- How do I bind a Java library to .NET?
10	- How do I integrate an AAR or JAR into .NET MAUI?
11	- How do I create a Java/Kotlin wrapper for a native Android library?
12	- How do I update Android bindings when the native SDK changes?
13	- How do I fix Android binding build errors?
14	- How do I expose native Android APIs to C#?
15	- How do I resolve Maven dependencies for Android bindings?
16	- How do I handle AndroidX dependencies in bindings?
17	- How do I fix "Java dependency is not satisfied" errors?
18	- How do I use AndroidMavenLibrary in my binding project?
19
20	# Overview
21
22	This skill guides the creation of Native Library Interop (Slim Bindings) for Android. This modern approach creates a thin native Java/Kotlin wrapper exposing only the APIs you need from a native Android library, making bindings easier to create and maintain.
23
24	## When to Use Slim Bindings vs Traditional Bindings
25
26	\| Scenario \| Recommended Approach \|
27	\|----------\|---------------------\|
28	\| Need only a subset of library functionality \| Slim Bindings ✓ \|
29	\| Easier maintenance when SDK updates \| Slim Bindings ✓ \|
30	\| Prefer working in Java/Kotlin for wrapper \| Slim Bindings ✓ \|
31	\| Better isolation from breaking changes \| Slim Bindings ✓ \|
32	\| Complex libraries with many dependencies \| Slim Bindings ✓ \|
33	\| Need entire library API surface \| Traditional Bindings \|
34	\| Creating bindings for third-party developers \| Traditional Bindings \|
35	\| Already maintaining traditional bindings \| Traditional Bindings \|
36
37	# Inputs
38
39	\| Parameter \| Required \| Example \| Notes \|
40	\|-----------\|----------\|---------\|-------\|
41	\| libraryName \| yes \| `FirebaseMessaging`, `OkHttp` \| Name of the native Android library to bind \|
42	\| bindingProjectName \| yes \| `MyBinding.Android` \| Name for the C# binding project \|
43	\| dependencySource \| no \| `maven`, `aar`, `jar` \| How the native library is distributed \|
44	\| targetFrameworks \| no \| `net9.0-android` \| Target frameworks (default: latest .NET Android) \|
45	\| exposedApis \| no \| List of specific APIs \| Which native APIs to expose (helps scope the wrapper) \|
46	\| mavenCoordinates \| no \| `com.example:library:1.0.0` \| Maven coordinates if library is from Maven repository \|
47
48	# Project Structure
49
50	The recommended project structure for Native Library Interop:
51
52	```
53	MyBinding/
54	├── android/
55	│ ├── native/ # Android Studio/Gradle project
56	│ │ ├── app/
57	│ │ │ ├── src/main/
58	│ │ │ │ └── java/com/example/mybinding/
59	│ │ │ │ └── DotnetMyBinding.java # Java wrapper implementation
60	│ │ │ │ └── kotlin/com/example/mybinding/
61	│ │ │ │ └── DotnetMyBinding.kt # Or Kotlin wrapper
62	│ │ │ └── build.gradle.kts
63	│ │ ├── settings.gradle.kts
64	│ │ └── build.gradle.kts
65	│ └── MyBinding.Android.Binding/
66	│ ├── MyBinding.Android.Binding.csproj
67	│ └── Transforms/
68	│ └── Metadata.xml
69	├── sample/
70	│ └── MauiSample/ # Sample MAUI app
71	│ ├── MauiSample.csproj
72	│ └── MainPage.xaml.cs
73	└── README.md
74	```
75
76	# Step-by-step Process
77
78	## Step 1: Analyze Dependencies First
79
80	Before creating any bindings, analyze the complete dependency tree of your target library. This is the most critical step and where most binding projects fail.
81
82	### Prerequisites
83
84	Ensure you have:
85	- JDK 17+
86	- Android SDK with `ANDROID_HOME` environment variable set
87	- .NET SDK 9+ (recommended for Java Dependency Verification)
88
89	> Note: You don't need Gradle installed globally—we'll use the Gradle Wrapper which downloads the correct version automatically.
90
91	## Step 2: Create the Android Library Project
92
93	There are multiple approaches to create the native Android wrapper project. Choose the one that best fits your workflow.
94
95	### Option A: Use Android Studio (Recommended for GUI)
96
97	The most reliable way to create a properly configured Android library:
98
99	1. Open Android Studio
100	2. File → New → New Project
101	3. Select "No Activity" template
102	4. Configure:
103	- Name: `MyBindingNative`
104	- Package name: `com.example.mybinding`
105	- Language: Java or Kotlin
106	- Minimum SDK: API 21
107	5. File → New → New Module
108	6. Select "Android Library"
109	7. Name it `app` (or your preferred

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