Introduction to 'java.lang.AbstractMethodError: Shaken in android.view.View.dispatchWindowInsetsAnimationProgress'

When working with Android application development, you may encounter errors related to the use of certain methods or libraries. One such error is the 'java.lang.AbstractMethodError: Shaken in android.view.View.dispatchWindowInsetsAnimationProgress' error.

What is this error?

This error occurs when a method is invoked on a class which has not implemented the method. In simpler terms, it means that the method being called is abstract or not implemented in the current context.

In this specific case, the error occurs when trying to use the dispatchWindowInsetsAnimationProgress method on a View in Android. This method was introduced in Android 11 and is used to animate window insets changes. If this method is called on an older version of Android where it is not implemented, the error will occur.

How to fix this error?

The fix for this error is to either avoid using the dispatchWindowInsetsAnimationProgress method or to check if it is available before using it.

One way to check if this method is available is to use reflection. Here is an example of how to check if this method is available:

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
    try {
        // Call dispatchWindowInsetsAnimationProgress if available
        Method method = View.class.getMethod("dispatchWindowInsetsAnimationProgress", float.class);
        method.invoke(this, progress);
    } catch (NoSuchMethodException | IllegalAccessException | InvocationTargetException e) {
        // Handle error
    }
} else {
    // Handle case where method is not available
}

In this code snippet, we first check if the current device's API level is at least Android 11. If it is, we use reflection to check if the dispatchWindowInsetsAnimationProgress method is available on the current View class. If it is, we call the method using reflection. If it is not available, we handle the error appropriately.

Conclusion

The 'java.lang.AbstractMethodError: Shaken in android.view.View.dispatchWindowInsetsAnimationProgress' error is an issue that can occur when trying to use the dispatchWindowInsetsAnimationProgress method on an Android device running an older version of Android. This error can be fixed by avoiding the use of this method or by checking if it is available before using it.