Click event never trigger in ScrollView

Question

I want to trigger click event in ScrollView.

I take this Clicking a scroll view as reference, but it did not work... I also tried to set all children of ScrollView to be unclickable, but it still not work.

That is part of my Layout.

<ScrollView
        android:id="@+id/draw"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="120dp"
        android:fillViewport="true"
        android:scrollbars="none"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent">

        <FrameLayout
            android:id="@+id/frame"
            android:layout_width="match_parent"
            android:layout_height="match_parent">

That is part of my code to set listener.

    scroller = ((Activity)c).findViewById(R.id.draw);
    scroller_child = ((Activity)c).findViewById(R.id.frame);

    scroller_child.setOnClickListener(new FrameLayout.OnClickListener() {
        @Override
        public void onClick(View v) {
            Log.d("TAG", "onclicked trigger");
        }
    });

    scroller.getViewTreeObserver().addOnScrollChangedListener(new ViewTreeObserver.OnScrollChangedListener() {
        @Override
        public void onScrollChanged() {
            Log.d("TAG", "scroll");
        }
    });

score 0 · Answer 1 · answered May 25 '19 at 03:52

the set a onClickListener on scrollView :

scroller.setOnClickListener(new OnClickListener() { 
        @Override
        public void onClick(View v) { 
            // do what you want 
        }

    });

And don't forget to set set the clickable=false attribute to each and every child of the ScrollView for the onClickListener to work on ScrollView.

Click event never trigger in ScrollView

1 Answers1