sample/src/main/java/com/davemorrissey/labs/subscaleview/test/eventhandlingadvanced/AdvancedEventHandlingActivity.java

package com.davemorrissey.labs.subscaleview.test.eventhandlingadvanced;

import android.graphics.PointF;
import android.os.Bundle;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.widget.Toast;

import com.davemorrissey.labs.subscaleview.ImageSource;
import com.davemorrissey.labs.subscaleview.SubsamplingScaleImageView;
import com.davemorrissey.labs.subscaleview.test.AbstractPagesActivity;
import com.davemorrissey.labs.subscaleview.test.Page;
import com.davemorrissey.labs.subscaleview.test.R.id;

import java.util.Arrays;

import static com.davemorrissey.labs.subscaleview.test.R.string.*;
import static com.davemorrissey.labs.subscaleview.test.R.layout.*;

public class AdvancedEventHandlingActivity extends AbstractPagesActivity {

    public AdvancedEventHandlingActivity() {
        super(advancedevent_title, pages_activity, Arrays.asList(
                new Page(advancedevent_p1_subtitle, advancedevent_p1_text),
                new Page(advancedevent_p2_subtitle, advancedevent_p2_text),
                new Page(advancedevent_p3_subtitle, advancedevent_p3_text),
                new Page(advancedevent_p4_subtitle, advancedevent_p4_text),
                new Page(advancedevent_p5_subtitle, advancedevent_p5_text)
        ));
    }

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        final SubsamplingScaleImageView imageView = findViewById(id.imageView);
        final GestureDetector gestureDetector = new GestureDetector(this, new GestureDetector.SimpleOnGestureListener() {
            @Override
            public boolean onSingleTapConfirmed(MotionEvent e) {
                if (imageView.isReady()) {
                    PointF sCoord = imageView.viewToSourceCoord(e.getX(), e.getY());
                    Toast.makeText(getApplicationContext(), "Single tap: " + ((int)sCoord.x) + ", " + ((int)sCoord.y), Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), "Single tap: Image not ready", Toast.LENGTH_SHORT).show();
                }
                return true;
            }
            @Override
            public void onLongPress(MotionEvent e) {
                if (imageView.isReady()) {
                    PointF sCoord = imageView.viewToSourceCoord(e.getX(), e.getY());
                    Toast.makeText(getApplicationContext(), "Long press: " + ((int)sCoord.x) + ", " + ((int)sCoord.y), Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), "Long press: Image not ready", Toast.LENGTH_SHORT).show();
                }
            }
            @Override
            public boolean onDoubleTap(MotionEvent e) {
                if (imageView.isReady()) {
                    PointF sCoord = imageView.viewToSourceCoord(e.getX(), e.getY());
                    Toast.makeText(getApplicationContext(), "Double tap: " + ((int)sCoord.x) + ", " + ((int)sCoord.y), Toast.LENGTH_SHORT).show();
                } else {
                    Toast.makeText(getApplicationContext(), "Double tap: Image not ready", Toast.LENGTH_SHORT).show();
                }
                return true;
            }
        });

        imageView.setImage(ImageSource.asset("sanmartino.jpg"));
        imageView.setOnTouchListener(new View.OnTouchListener() {
            @Override
            public boolean onTouch(View view, MotionEvent motionEvent) {
                return gestureDetector.onTouchEvent(motionEvent);
            }
        });
    }

}