WebView APK Example

This is a simple Android application that demonstrates how to use the WebView component to create an APK that launches directly to a specified URL. The app essentially wraps a web application in a native Android container, providing a seamless mobile experience.

Features

• WebView Integration: Uses Android's WebView component to display web content
• JavaScript Support: Enabled for full web application functionality
• Progress Indicator: Shows loading progress while the web page loads
• Back Navigation: Handles back button presses to navigate within the WebView
• Error Handling: Displays error messages if the web page fails to load
• Media Playback: Allows media playback without requiring user gesture

How It Works

The app uses a WebView component that loads a specified URL when the app launches. The main functionality is implemented in MainActivity.java:

// The URL to load when the app starts
startWebView("https://ap-iwa.com/ProMobileV3");

Key Components

1. WebView Setup: The WebView is configured with JavaScript enabled and media playback support
2. WebViewClient: Handles URL loading, page completion, and error handling
3. WebChromeClient: Manages permissions for web content
4. Progress Bar: Shows loading progress to improve user experience

Customization

Changing the Target URL

To change the URL that the app loads, modify line 22 in app/src/main/java/com/support/webapp_to_webview/MainActivity.java:

startWebView("https://your-custom-url.com"); // Replace with your desired URL

Updating the App Icon

To customize the app icon, follow these steps:

1. Prepare Your Icon: Create your icon image in the following formats:

   • PNG format
   • Multiple sizes: 48x48, 72x72, 96x96, 144x144, 192x192, 512x512 pixels
   • Both square and round versions (for round icons)

2. Replace Icon Files: Replace the existing icon files in the following directories:

   • app/src/main/res/mipmap-hdpi/ - 72x72 pixels
   • app/src/main/res/mipmap-mdpi/ - 48x48 pixels
   • app/src/main/res/mipmap-xhdpi/ - 96x96 pixels
   • app/src/main/res/mipmap-xxhdpi/ - 144x144 pixels
   • app/src/main/res/mipmap-xxxhdpi/ - 192x192 pixels

3. File Names: Use these naming conventions:

   • ic_launcher.png - Square icon
   • ic_launcher_round.png - Round icon
   • ic_launcher_foreground.png - Foreground icon (for adaptive icons)

4. Update Manifest: The app icon is referenced in app/src/main/AndroidManifest.xml:

   android:icon="@mipmap/ic_launcher"
   android:roundIcon="@mipmap/ic_launcher_round"

5. Alternative Method: You can also use Android Studio's built-in Asset Studio:

   • Right-click on app/src/main/res/
   • Select "New" → "Image Asset"
   • Choose "Launcher Icons"
   • Import your custom image
   • Generate the icons

Changing the App Name

To change the app name displayed on the device, modify app/src/main/res/values/strings.xml:

<string name="app_name">Your Custom App Name</string>

Building the APK

1. Clone the repository:

   git clone <repository-url>
   cd webview-btm

2. Open in Android Studio or build from command line:

   ./gradlew assembleRelease

3. Find the APK: The built APK will be located at:

   app/build/outputs/apk/release/app-release.apk
   

Requirements

• Android API level 21+ (Android 5.0+)
• Internet permission (already configured)
• Target URL must be accessible from the device

Permissions

The app requires the following permission:

• INTERNET - To load web content

Troubleshooting

• Web page not loading: Check your internet connection and ensure the target URL is accessible
• JavaScript not working: JavaScript is enabled by default, but some websites may require additional permissions
• App crashes: Ensure the target URL is valid and the device has internet connectivity

License

This project is provided as an example for educational purposes.