Android Question How to use scrollview inside another scrollview ?

[nazilabdulla]

I tried to make scrollview inside another , but only main scroll is working..How to solve it ?

 

[Erel]

Not so simple. You can do it with xCLV and CLVNested: https://www.b4x.com/android/forum/threads/clvnested-allows-nesting-clvs.107742/#content

 

[SMOOTSARA]

I tried to make scrollview inside another , but only main scroll is working..How to solve it ?

Sub EnableScrollInScrollview(Sv As ScrollView)
 
    Private java_object As JavaObject
    java_object.InitializeContext
 
    Dim java_view As View
    java_view = Sv
    java_object.RunMethod("makeMyScrollSmart", Array(java_view))

End Sub


'use below code in relate activity

#If JAVA
import android.view.View;
import android.view.MotionEvent;
import android.widget.ScrollView;

public void makeMyScrollSmart(View myScroll) {
    myScroll.setOnTouchListener(new View.OnTouchListener() {
        @Override
        public boolean onTouch(View __v, MotionEvent __event) {
            if (__event.getAction() == MotionEvent.ACTION_DOWN) {
                //  Disallow the touch request for parent scroll on touch of child view
                requestDisallowParentInterceptTouchEvent(__v, true);
            } else if (__event.getAction() == MotionEvent.ACTION_UP || __event.getAction() == MotionEvent.ACTION_CANCEL) {
                // Re-allows parent events
                requestDisallowParentInterceptTouchEvent(__v, false);
            }
            return false;
        }
    });
}

private void requestDisallowParentInterceptTouchEvent(View __v, Boolean __disallowIntercept) {
    while (__v.getParent() != null && __v.getParent() instanceof View) {
        if (__v.getParent() instanceof ScrollView) {
            __v.getParent().requestDisallowInterceptTouchEvent(__disallowIntercept);
        }
        __v = (View) __v.getParent();
    }
}
#End If