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https://github.com/jipok/website-to-apk

Easy create Android app for website. Wrapper for WebView
https://github.com/jipok/website-to-apk

android apk instruction no-java website webview webview-app

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Easy create Android app for website. Wrapper for WebView

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README

          

# Website-to-APK

A simple tool to convert any website into an Android APK without requiring Android Studio or Java programming knowledge. The app acts as a WebView wrapper around your chosen website.

## Features

- Simple command-line interface with colorful output
- Automatic Java 17 downloading option
- Automated Android SDK tools installation
- APK signing and building process
- Userscripts support

## Quick Start

1. Clone this repository:
```bash
git clone https://github.com/Jipok/website-to-apk
cd website-to-apk
```

2. Create a configuration file `webapk.conf`:
```ini
id = myapp # Application ID (will be com.myapp.webtoapk)
name = My App Name # Display name of the app
mainURL = https://example.com # Target website URL
icon = example.png # Path to your app icon (PNG format)

allowSubdomains = true # Allow navigation between example.com and sub.example.com
requireDoubleBackToExit = true # Require double back press to exit app

enableExternalLinks = true # Allow external links
openExternalLinksInBrowser = true # If allowed: open external links in browser or WebView
confirmOpenInBrowser = true # Show confirmation before opening external browser

allowOpenMobileApp = false # Block external app links/schemes
```

3. Generate signing key (only needed once, keep the generated file safe):
```bash
./make.sh keygen
```

4. Apply configuration and build:
```bash
./make.sh build
```

The final APK will be created in the current directory.

### YouTube Example

Pre-configured configuration files for YouTube are available in the confs/youtube directory. To build a YouTube APK, simply execute:

```bash
./make.sh build confs/youtube/webapk.conf
```

## Available Commands

- `./make.sh build [config]` - Apply configuration and build
- `./make.sh keygen` - Generate signing key
- `./make.sh test` - Install and test APK on connected device
- `./make.sh clean` - Clean build files
-
- `./make.sh apk` - Build APK without apply_config
- `./make.sh apply_config` - Apply settings from configuration file
- `./make.sh get_java` - Download OpenJDK 17 locally

## App Links / Deep Links

You can make your app handle links to the website by setting the `deeplink` option in your configuration file. When set, clicking links to your website on the device will open them in your app instead of a browser.

For example, if your website is `https://example.com`, set:
```ini
deeplink = example.com
```

## Userscripts Support

The app supports userscripts (similar to Tampermonkey/Violentmonkey scripts) through the `scripts` configuration option:

```ini
scripts = scripts/*.js # Load all .js files from scripts directory
# OR
scripts = site-*.js # Load all files matching pattern
# OR
scripts = script1*.js script20.js # Load specific script files
```

### How Userscripts Work

- Scripts can use Tampermonkey/Violentmonkey/etc [`@match`](https://violentmonkey.github.io/api/metadata-block/#match--exclude-match) and [`@run-at`](https://violentmonkey.github.io/api/metadata-block/#run-at) directives, other ignored
- If no `@match` is specified, the script will run on all pages
- Only `GM_addStyle` supported from Greasemonkey API
- There are `toast("short message")` function
- Script console output (console.log/alert/warn) can be monitored using:
```bash
./make.sh test
```

Common use cases include:
- Adding dark mode to websites
- Customizing website appearance
- Adding new functionality
- Fixing mobile compatibility issues

Example of some useful scripts:
- [dark-mode.js](https://gist.github.com/Jipok/01d12591491816625649a467db898518) - Universal dark theme that respects system preferences
- [instant.js](https://raw.githubusercontent.com/instantpage/instant.page/refs/heads/master/instantpage.js) - Speed up page loads by preloading pages when the user taps

## Additional WebView Options
The following advanced options can also be configured:
```ini
cookies = "key1=value1; key2=value2" # Cookies for mainURL host
basicAuth = login:password # HTTP Basic Auth credentials for mainURL host
userAgent = "MyCustomUserAgent/1.0" # Custom UserAgent header
JSEnabled = true # Enable JavaScript execution
JSCanOpenWindowsAutomatically = true # Allow JS to open new windows/popups

DomStorageEnabled = true # Enable HTML5 DOM storage
DatabaseEnabled = true # Enable HTML5 Web SQL Database
SavePassword = true # Allow saving passwords in WebView
AllowFileAccess = true
AllowFileAccessFromFileURLs = true
forceLandscapeMode = false # Lock screen orientation to landscape

showDetailsOnErrorScreen = false # Show connection error details for user
confirmOpenExternalApp = true # Show confirmation before opening external app
blockLocalhostRequests = true # Block requests to 127.0.0.1
trustUserCA = false # Allow app to trust user-installed SSL certs
geolocationEnabled = false # Block geolocation API
```

## Technical Details

- Target Android API: 33 (Android 13)
- Minimum Android API: 24 (Android 7.0)
- Build tools version: 33.0.2
- Gradle version: 7.4
- Required Java version: 17

## Notes

- All app data is stored in the app's private directory
- The keystore `app/my-release-key.jks` password is set to "123456" by default
- Internet permission is required and automatically included
- If you need to support [different Android versions](https://apilevels.com/), edit `app/build.gradle` accordingly
- Based on the original work from: https://github.com/successtar/web-to-app