Example usage for android.view MotionEvent getPointerCount

Introduction

In this page you can find the example usage for android.view MotionEvent getPointerCount.

Prototype

public final int getPointerCount()

Source Link

Document

The number of pointers of data contained in this event.

Usage

From source file:Main.java

private static MotionEvent transformEventOld(MotionEvent e, Matrix m) {
    long downTime = e.getDownTime();
    long eventTime = e.getEventTime();
    int action = e.getAction();
    int pointerCount = e.getPointerCount();
    int[] pointerIds = getPointerIds(e);
    PointerCoords[] pointerCoords = getPointerCoords(e);
    int metaState = e.getMetaState();
    float xPrecision = e.getXPrecision();
    float yPrecision = e.getYPrecision();
    int deviceId = e.getDeviceId();
    int edgeFlags = e.getEdgeFlags();
    int source = e.getSource();
    int flags = e.getFlags();
    // Copy the x and y coordinates into an array, map them, and copy back.
    float[] xy = new float[pointerCoords.length * 2];
    for (int i = 0; i < pointerCount; i++) {
        xy[2 * i] = pointerCoords[i].x;/*  www.  ja  va2 s . c  o m*/
        xy[2 * i + 1] = pointerCoords[i].y;
    }
    m.mapPoints(xy);
    for (int i = 0; i < pointerCount; i++) {
        pointerCoords[i].x = xy[2 * i];
        pointerCoords[i].y = xy[2 * i + 1];
        pointerCoords[i].orientation = transformAngle(m, pointerCoords[i].orientation);
    }
    MotionEvent n = MotionEvent.obtain(downTime, eventTime, action, pointerCount, pointerIds, pointerCoords,
            metaState, xPrecision, yPrecision, deviceId, edgeFlags, source, flags);
    return n;
}

From source file:Main.java

public static JSONObject CreateJSonObjectFromMotionEvent(MotionEvent e) throws JSONException {
    JSONObject jObj = new JSONObject();
    jObj.put("downTime", e.getDownTime());
    jObj.put("eventTime", e.getEventTime());
    jObj.put("action", e.getAction());
    jObj.put("pointerCount", e.getPointerCount());
    jObj.put("metaState", e.getMetaState());
    jObj.put("buttonState", e.getButtonState());
    jObj.put("xPrecision", e.getXPrecision());
    jObj.put("yPrecision", e.getYPrecision());
    jObj.put("deviceId", e.getDeviceId());
    jObj.put("edgeFlags", e.getEdgeFlags());
    jObj.put("source", e.getSource());
    jObj.put("flags", e.getFlags());

    for (int i = 0; i < e.getPointerCount(); i++) {
        PointerProperties prop = new PointerProperties();
        e.getPointerProperties(i, prop);

        PointerCoords coords = new PointerCoords();
        e.getPointerCoords(i, coords);//from  w ww .  j av a2s.co  m

        JSONObject pointer = JObjFromPointer(prop, coords);
        jObj.accumulate("pointers", pointer);
    }

    return jObj;
}

From source file:Main.java

public static void velocityTrackerPointerUpCleanUpIfNecessary(MotionEvent ev, VelocityTracker tracker) {

    // Check the dot product of current velocities.
    // If the pointer that left was opposing another velocity vector, clear.
    tracker.computeCurrentVelocity(1000, mMaximumFlingVelocity);
    final int upIndex = ev.getActionIndex();
    final int id1 = ev.getPointerId(upIndex);
    final float x1 = tracker.getXVelocity(id1);
    final float y1 = tracker.getYVelocity(id1);
    for (int i = 0, count = ev.getPointerCount(); i < count; i++) {
        if (i == upIndex)
            continue;

        final int id2 = ev.getPointerId(i);
        final float x = x1 * tracker.getXVelocity(id2);
        final float y = y1 * tracker.getYVelocity(id2);

        final float dot = x + y;
        if (dot < 0) {
            tracker.clear();//  www  . j a v a 2s.  co  m
            break;
        }
    }
}

From source file:com.google.android.apps.santatracker.dasherdancer.NoSwipeViewPager.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    boolean retVal = false;
    if (ev.getPointerCount() > 1) {
        retVal = mScaleGestureDetector.onTouchEvent(ev);
    }//from   w ww  .  j a  va 2 s.  c o m
    if (!retVal && ev.getPointerCount() == 1) {
        retVal = mGestureDetector.onTouchEvent(ev) || retVal;
    }
    return retVal;
}

From source file:com.stfalcon.frescoimageviewer.MultiTouchViewPager.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    if (ev.getPointerCount() > 1) {
        return false;
    } else {/*  www  . j  a  va  2s  . c o  m*/
        try {
            return super.onInterceptTouchEvent(ev);
        } catch (IllegalArgumentException ex) {
            return false;
        }
    }
}

From source file:com.netease.hearttouch.htimagepicker.core.view.photoview.PhotoViewPager.java

@Override
public boolean dispatchTouchEvent(@NonNull MotionEvent ev) {
    if (ev.getPointerCount() > 1 && mIsDisallowIntercept) {
        requestDisallowInterceptTouchEvent(false);
        boolean handled = super.dispatchTouchEvent(ev);
        requestDisallowInterceptTouchEvent(true);
        return handled;
    } else {//from   www.j  av  a  2s .  c  om
        return super.dispatchTouchEvent(ev);
    }
}

From source file:com.stfalcon.frescoimageviewer.MultiTouchViewPager.java

@Override
public boolean dispatchTouchEvent(@NonNull MotionEvent ev) {
    if (ev.getPointerCount() > 1 && isDisallowIntercept) {
        requestDisallowInterceptTouchEvent(false);
        boolean handled = super.dispatchTouchEvent(ev);
        requestDisallowInterceptTouchEvent(true);
        return handled;
    } else {//from   w  w w .j a  v  a  2 s  . c om
        return super.dispatchTouchEvent(ev);
    }
}

From source file:com.google.android.apps.forscience.whistlepunk.MultiTouchDrawerLayout.java

@Override
public boolean dispatchTouchEvent(MotionEvent ev) {
    // the incorrect array size will only happen in the multi-touch scenario.
    if (ev.getPointerCount() > 1 && mIsDisallowIntercept) {
        requestDisallowInterceptTouchEvent(false);
        boolean handled = super.dispatchTouchEvent(ev);
        requestDisallowInterceptTouchEvent(true);
        return handled;
    } else {/*from  w  w  w.j  a va2 s  .c  om*/
        return super.dispatchTouchEvent(ev);
    }
}

From source file:org.skia.viewer.ViewerActivity.java

@Override
public boolean onTouch(View v, MotionEvent event) {
    int count = event.getPointerCount();
    for (int i = 0; i < count; i++) {
        final float x = event.getX(i);
        final float y = event.getY(i);
        final int owner = event.getPointerId(i);
        int action = event.getAction() & MotionEvent.ACTION_MASK;
        onTouched(mApplication.getNativeHandle(), owner, action, x, y);
    }/*from  www .j a  v a 2  s.c om*/
    return true;
}

From source file:danonino.danonino_the_game.Core.Labels.PowerUp.java

public int onTouch(MotionEvent event) {
    int index = MotionEventCompat.getActionIndex(event);
    int x;//from  w  ww.  j a  v  a  2  s .  co  m
    int y;

    if (event.getPointerCount() > 1) {
        // The coordinates of the current screen contact, relative to
        // the responding View or Activity.
        x = (int) MotionEventCompat.getX(event, index);
        y = (int) MotionEventCompat.getY(event, index);

    } else {
        // Single touch event
        x = (int) MotionEventCompat.getX(event, index);
        y = (int) MotionEventCompat.getY(event, index);
    }

    if (this.usePowerUpBtn.btn_rect.contains(x, y) || ((event.getActionMasked() == MotionEvent.ACTION_UP
            || event.getActionMasked() == MotionEvent.ACTION_POINTER_UP) && usePowerUpBtnPressed)) {
        this.usePowerUpBtnPressed = !this.usePowerUpBtnPressed;
        this.usePowerUpBtn.onTouch(event);
        return 1;
    }
    return 0;
}