Android single- and multi-stroke gestures in the same library confuses the GesturesOverlayView?
check android:gestureStrokeLengthThreshold =”15.2″ android:gestureStrokeType=”multiple” and android:fadeOffset=”6000″
gestures
Android “swipe” vs “fling”
Drag, swipe, or fling details Swipe gesture activities vary based on context. The speed at which a gesture is performed is the primary distinction between Drag, Swipe, and Fling. Drag: Fine gesture, slower, more controlled, typically has an on-screen target Swipe: Gross gesture, faster, typically has no on-screen target Fling: Gross gesture, with no on-screen … Read more
Android: velocity-based ViewPager scrolling
The technique here is to extends ViewPager and mimic most of what the pager will be doing internally, coupled with scrolling logic from the Gallery widget. The general idea is to monitor the fling (and velocity and accompanying scrolls) and then feed them in as fake drag events to the underlying ViewPager. If you do … Read more
UITapGestureRecognizer selector, sender is the gesture, not the ui object
I figured out how to get the tag, which was the most important part of the question for me. Since the gesture is the sender, I figured out the the view it is attached to is sent along with it: [(UIGestureRecognizer *)sender view].tag I am still curious if anyone can tell me how to send … Read more
How to implement swipe gestures for mobile devices?
I made this function for my needs. Feel free to use it. Works great on mobile devices. function detectswipe(el,func) { swipe_det = new Object(); swipe_det.sX = 0; swipe_det.sY = 0; swipe_det.eX = 0; swipe_det.eY = 0; var min_x = 30; //min x swipe for horizontal swipe var max_x = 30; //max x difference for vertical … Read more
Adding Fling Gesture to an image view – Android
Here’s the simpliest working version of flinger I can think of. You can actually tie it to any component, not only ImageView. public class MyActivity extends Activity { private void onCreate() { final GestureDetector gdt = new GestureDetector(new GestureListener()); final ImageView imageView = (ImageView) findViewById(R.id.image_view); imageView.setOnTouchListener(new OnTouchListener() { @Override public boolean onTouch(final View view, final … Read more
Android: Detect if user touches and drags out of button region?
Check the MotionEvent.MOVE_OUTSIDE: Check the MotionEvent.MOVE: private Rect rect; // Variable rect to hold the bounds of the view public boolean onTouch(View v, MotionEvent event) { if(event.getAction() == MotionEvent.ACTION_DOWN){ // Construct a rect of the view’s bounds rect = new Rect(v.getLeft(), v.getTop(), v.getRight(), v.getBottom()); } if(event.getAction() == MotionEvent.ACTION_MOVE){ if(!rect.contains(v.getLeft() + (int) event.getX(), v.getTop() + (int) … Read more
How to programmatically trigger the touch event in android?
// Obtain MotionEvent object long downTime = SystemClock.uptimeMillis(); long eventTime = SystemClock.uptimeMillis() + 100; float x = 0.0f; float y = 0.0f; // List of meta states found here: developer.android.com/reference/android/view/KeyEvent.html#getMetaState() int metaState = 0; MotionEvent motionEvent = MotionEvent.obtain( downTime, eventTime, MotionEvent.ACTION_UP, x, y, metaState ); // Dispatch touch event to view view.dispatchTouchEvent(motionEvent);
What is the difference between Pan and Swipe in iOS?
By definition, a swipe gesture is necessarily also a pan gesture — both involve translational movement of touch points. The difference is in the recognizer semantics: a pan recognizer looks for the beginning of translational movement and continues to report movement in any direction over time, while a swipe recognizer makes an instantaneous decision as … Read more