RuntimeException: Unable to start activity -- data-lazy-src=
  • 04-Jun-2023
Lightrun Team
Author Lightrun Team
RuntimeException: Unable to start activity -- data-lazy-src=

RuntimeException: Unable to start activity –> Binary XML file line #11: Error inflating class

Lightrun Team
Lightrun Team

Explanation of the problem

Upon launching the PlayerActivity component in my Android application (com.yaramobile.digitoon), a critical issue occurs. The application crashes with a java.lang.RuntimeException during the activity startup process. The root cause of the problem is an android.view.InflateException that occurs when attempting to inflate the XML layout file at line #11. The specific error points to a failure in inflating the class.

This exception trace reveals that the AdvancedWebView class cannot be successfully inflated in the XML layout file due to an android.view.InflateException. The error message indicates that the issue arises at line #11 of the XML file. The root cause lies in the failure to inflate the class.


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Problem solution for: RuntimeException: Unable to start activity –> Binary XML file line #11: Error inflating class

To resolve the issue of crashing the PlayerActivity due to the inability to inflate the AdvancedWebView class, there are several potential solutions you can try:

  1. Verify Library Integration: Double-check that you have properly integrated the library into your project. Ensure that you have added the necessary dependencies to your app’s build.gradle file. Also, make sure that you have imported the library classes correctly in your activity.
  2. XML Layout File Investigation: Examine the XML layout file for the PlayerActivity (com.yaramobile.digitoon.presentation.player.PlayerActivity) and specifically focus on line #11 mentioned in the error message. Verify that the AdvancedWebView class is correctly referenced in the XML file. Ensure that the package name ( matches the actual package name of the library.Here is an example of a correct XML layout file using AdvancedWebView:


<RelativeLayout xmlns:android=""

    <!-- Other layout elements -->

        android:layout_height="match_parent" />



Ensure Proper Initialization: Confirm that you have properly initialized the AdvancedWebView class in your PlayerActivity code. Ensure that you have instantiated the AdvancedWebView object, set up any required configurations, and added it to the appropriate layout container. Additionally, make sure that you have the necessary permissions declared in your app’s manifest file to use the WebView.

Here is an example of initializing and using AdvancedWebView in the PlayerActivity:



public class PlayerActivity extends AppCompatActivity {
    private AdvancedWebView webView;

    protected void onCreate(Bundle savedInstanceState) {

        // Find the WebView by its ID in the layout
        webView = findViewById(;

        // Perform any necessary WebView configurations or settings
        webView.setListener(this, new WebViewListener());

        // Load the desired URL or content into the WebView

    // Other activity lifecycle methods and WebView-related code


Other popular problems with Android-AdvancedWebView

Problem 1: Compatibility Issues with Android Versions Description: One common problem encountered when using Android-AdvancedWebView is compatibility issues with different Android versions. Due to variations in WebView implementations across Android versions and devices, certain features or functionalities of AdvancedWebView may not work as expected or may cause crashes.

Solution: To address compatibility issues, it is important to consider the minimum and target SDK versions specified in your project. You can check the Android WebView documentation for each specific Android version to identify any known limitations or behavior changes. Additionally, you can use feature detection and version checks in your code to handle compatibility gracefully.

Here’s an example of how to perform a version check before using AdvancedWebView features:


    // Use AdvancedWebView features compatible with Android KitKat (API level 19) and higher
    advancedWebView.addJavascriptInterface(new JavaScriptInterface(), "AndroidInterface");


By using version checks and adapting your code accordingly, you can ensure that the AdvancedWebView functionality is compatible with the targeted Android versions.

Problem 2: Permission Issues Description: Another common problem with Android-AdvancedWebView is related to permissions. The WebView component requires certain permissions to function properly, such as internet access or file access for loading web content or interacting with JavaScript interfaces. If these permissions are not properly declared in the AndroidManifest.xml file or not granted at runtime, it can lead to issues like blank screens or restricted functionality.

Solution: To resolve permission-related problems, ensure that you have declared the necessary permissions in your AndroidManifest.xml file. For example, if your AdvancedWebView needs internet access, include the following line within the <manifest> element:


<uses-permission android:name="android.permission.INTERNET" />


Additionally, if your app targets Android Marshmallow (API level 23) or higher, you need to request runtime permissions from the user. This can be done using the ActivityCompat.requestPermissions() method and handling the permission results in the onRequestPermissionsResult() callback.


// Request runtime permission for internet access
if (ContextCompat.checkSelfPermission(this, Manifest.permission.INTERNET)
        != PackageManager.PERMISSION_GRANTED) {
            new String[]{Manifest.permission.INTERNET},


By ensuring that the required permissions are declared and granted, you can avoid permission-related issues with Android-AdvancedWebView.

Problem 3: Handling WebView Lifecycle and Memory Management Description: Managing the lifecycle and memory usage of AdvancedWebView can be challenging. WebView instances consume memory and can potentially cause memory leaks if not handled properly. Additionally, AdvancedWebView must be properly initialized, paused, resumed, and destroyed in accordance with the activity or fragment lifecycle to avoid crashes or unpredictable behavior.

Solution: To address the lifecycle and memory management issues, follow the best practices for WebView handling. Here are some recommendations:

  1. Initialize AdvancedWebView and set up any necessary configurations in the onCreate() method of your activity or fragment.
  2. Pause and resume the WebView by calling webView.onPause() and webView.onResume() in the corresponding lifecycle methods (onPause() and onResume()).
  3. Destroy the WebView in the onDestroy() method to release its resources properly:


protected void onDestroy() {
    if (webView != null) {


A brief introduction to Android-AdvancedWebView

Android-AdvancedWebView is a powerful library that extends the functionality of the WebView component in Android applications. It provides a convenient way to display web content within an Android app while offering additional features and flexibility. With Android-AdvancedWebView, developers can leverage the capabilities of WebView to render HTML, CSS, and JavaScript content, interact with web pages, and provide a seamless browsing experience within their application.

Under the hood, Android-AdvancedWebView utilizes the WebView component provided by the Android platform. It extends the WebView class and introduces a set of methods and callbacks to handle various events and operations. This library offers a range of functionalities such as handling JavaScript execution, intercepting URL loading, managing cookies, implementing custom WebView clients, and more. It also provides additional features like file upload support, advanced error handling, and improved compatibility across different Android versions and devices.

Developers can integrate Android-AdvancedWebView into their projects by including the library as a dependency and using its APIs to control and customize the WebView behavior. It simplifies the implementation of WebView-related features and enhances the capabilities of WebView, making it a valuable tool for building rich web-based functionalities within Android applications.


Most popular use cases for Android-AdvancedWebView


  1. Seamless Web Content Integration: Android-AdvancedWebView enables developers to seamlessly integrate web content into their Android applications. It allows rendering HTML, CSS, and JavaScript content within the WebView component, providing a native-like browsing experience to users. By utilizing the library, developers can load web pages, display interactive web-based features, and leverage the power of the web within their Android apps.


// Load a web page
AdvancedWebView webView = findViewById(;


  1. Advanced WebView Functionality: Android-AdvancedWebView extends the functionality of the WebView component with additional features and customization options. It provides fine-grained control over WebView behavior, including JavaScript execution, URL loading interception, cookie management, and WebView client customization. With this library, developers can implement complex web-based functionalities and tailor the WebView experience to meet their specific requirements.


// Enable JavaScript execution
AdvancedWebView webView = findViewById(;

// Intercept URL loading
webView.setWebViewClient(new WebViewClient() {
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        // Handle URL loading here
        return true;

// Manage cookies
CookieManager cookieManager = CookieManager.getInstance();


  1. Enhanced Compatibility and Cross-Version Support: Android-AdvancedWebView addresses common compatibility issues and ensures consistent behavior across different Android versions and devices. It provides compatibility fixes, workarounds for known WebView bugs, and improved handling of various edge cases. By using Android-AdvancedWebView, developers can create web-based features that work reliably across a wide range of Android platforms and devices, ensuring a consistent user experience.



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