如何调用属于活动的片段的方法

Question

With this code I am invoking a method of an activity.

What I require is to invoke a method of a fragment that belongs to an activity.

if (AppCompatActivity.class.equals(ctx.getClass().getSuperclass())) {
    if (callBackName != null) {
        Activity activity = (Activity) ctx;
        Method method = activity.getClass().getMethod(callBackName, parameters);
        method.invoke(activity, response, isError, errorType);
    }
}

Answer 1

Make the method (that you are invoking on activity as in your example) call the fragment method ..

in Fragment

public void iAmFragmentMethodInFragment() {
}

in Activity

public void iAmActivityMethodInActivity() {
 fragment.iAmFragmentMethodInFragment()
}