Detect touch event when onInterceptTouchEvent() used

Question 1

I am taking time 125 based on PRESSED_STATE_DURATION

Try this

//Declare as instance variables
int oldX,oldY,newX,newY;
//State the minimum distance of swipe that you forgive the user for ;)
int distance = 10;
int time = 125;
boolean cancel = false;
case MotionEvent.ACTION_DOWN:
cancel = false;
//Get x and y of touch
oldX = ev.getX();
oldY = ev.getY();
startActionTimer();

case MotionEvent.ACTION_MOVE:
//Get x and y of touch
newX = ev.getX();
newY = ev.getY();

case MotionEvent.ACTION_UP:
cancel = true;

private void startActionTimer(){
        //time is pressed state duration
          new CountDownTimer(time, time) {
             public void onTick(long millisUntilFinished) {}

             public void onFinish() {
                //Time to do our action!!!
                // please consider
                if((Math.abs(newX - oldX )< distance) && (Math.abs(newY - oldY ) <distance)){
                    if(cancel == false){
                    // Now its a touch so do your action
                    }
                }
             }
          }.start();
     }

NOTE: Please use all the variables as class variables(instance variables) to avoid problems. Because sometimes i get weird situations where values are not updated properly

OR

Why don't you try the gesture detection

and override the onSingleTapUp method

Question 2

If you just need to do something when an item is touched, you don't need a custom ListView, you just have to set a listener on the listView's adapter, .setOnItemClickListener().

Question 3

Here is the answer to my question, i have figured it out eventually. I just needed to use a boolean variable to check when the swiping was performed and do the appropriate thing when not swiping. it's not the best solution as it is very sensitive(detects even the slightest attempt of swipe) but still it's something.

Thanks guys for your help!

Here is my updated code:

package ro.gebs.captoom.utils;

import ro.gebs.captoom.fragments.HomeScreenFragment;
import ro.gebs.captoom.interfaces.FolderViewInterface;
import android.content.Context;
import android.util.AttributeSet;
import android.view.MotionEvent;
import android.widget.ListView;

public class FolderListView extends ListView {

    private float xDistance, yDistance, lastX, lastY;
    private int folder_index;
    private FolderViewInterface openFolder;

    private boolean swiping = false;

    // If built programmatically
    public FolderListView(Context context) {
        super(context);
    }

    // This example uses this method since being built from XML
    public FolderListView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    // Build from XML layout
    public FolderListView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
    }

    @Override
    public boolean onInterceptTouchEvent(MotionEvent ev) {

        switch (ev.getAction()) {

        case MotionEvent.ACTION_UP:
            folder_index = pointToPosition((int) lastX, (int) lastY);
            if (!swiping) {
                HomeScreenFragment f = new HomeScreenFragment();
                openFolder = (FolderViewInterface) f;
                openFolder.onFolderOpened(folder_index);
            }
            swiping = false;
            break;

        case MotionEvent.ACTION_DOWN:
            xDistance = yDistance = 0f;
            lastX = ev.getX();
            lastY = ev.getY();

            break;
        case MotionEvent.ACTION_MOVE:
            final float curX = ev.getX();
            final float curY = ev.getY();
            xDistance += Math.abs(curX - lastX);
            yDistance += Math.abs(curY - lastY);
            lastX = curX;
            lastY = curY;
            if (xDistance > yDistance) {
                swiping = true;
                System.out.println("I AM HEREEEEEE");
                return false;
            }

        }

        return super.onInterceptTouchEvent(ev);

    }

}