List of usage examples for android.view MotionEvent getPointerCount
public final int getPointerCount()
From source file:me.ccrama.redditslide.Views.SubsamplingScaleImageView.java
/** * Handle touch events. One finger pans, and two finger pinch and zoom plus panning. *///from w w w.j a v a 2 s . c o m @Override @SuppressWarnings("deprecation") public boolean onTouchEvent(@NonNull MotionEvent event) { // During non-interruptible anims, ignore all touch events if (anim != null && !anim.interruptible) { getParent().requestDisallowInterceptTouchEvent(true); return true; } else { if (anim != null && anim.listener != null) { try { anim.listener.onInterruptedByUser(); } catch (Exception e) { Log.w(TAG, "Error thrown by animation listener", e); } } anim = null; } // Abort if not ready if (vTranslate == null) { return true; } // Detect flings, taps and double taps if (!isQuickScaling && (detector == null || detector.onTouchEvent(event))) { isZooming = false; isPanning = false; maxTouchCount = 0; return true; } if (vTranslateStart == null) { vTranslateStart = new PointF(0, 0); } if (vCenterStart == null) { vCenterStart = new PointF(0, 0); } int touchCount = event.getPointerCount(); switch (event.getAction()) { case MotionEvent.ACTION_DOWN: case MotionEvent.ACTION_POINTER_1_DOWN: case MotionEvent.ACTION_POINTER_2_DOWN: anim = null; getParent().requestDisallowInterceptTouchEvent(true); maxTouchCount = Math.max(maxTouchCount, touchCount); if (touchCount >= 2) { if (zoomEnabled) { // Start pinch to zoom. Calculate distance between touch points and center point of the pinch. float distance = distance(event.getX(0), event.getX(1), event.getY(0), event.getY(1)); scaleStart = scale; vDistStart = distance; vTranslateStart.set(vTranslate.x, vTranslate.y); vCenterStart.set((event.getX(0) + event.getX(1)) / 2, (event.getY(0) + event.getY(1)) / 2); } else { // Abort all gestures on second touch maxTouchCount = 0; } // Cancel long click timer handler.removeMessages(MESSAGE_LONG_CLICK); } else if (!isQuickScaling) { // Start one-finger pan vTranslateStart.set(vTranslate.x, vTranslate.y); vCenterStart.set(event.getX(), event.getY()); // Start long click timer handler.sendEmptyMessageDelayed(MESSAGE_LONG_CLICK, 600); } return true; case MotionEvent.ACTION_MOVE: boolean consumed = false; if (maxTouchCount > 0) { if (touchCount >= 2) { // Calculate new distance between touch points, to scale and pan relative to start values. float vDistEnd = distance(event.getX(0), event.getX(1), event.getY(0), event.getY(1)); float vCenterEndX = (event.getX(0) + event.getX(1)) / 2; float vCenterEndY = (event.getY(0) + event.getY(1)) / 2; if (zoomEnabled && (distance(vCenterStart.x, vCenterEndX, vCenterStart.y, vCenterEndY) > 5 || Math.abs(vDistEnd - vDistStart) > 5 || isPanning)) { isZooming = true; isPanning = true; consumed = true; setScale(Math.min(maxScale, (vDistEnd / vDistStart) * scaleStart)); if (scale <= minScale()) { // Minimum scale reached so don't pan. Adjust start settings so any expand will zoom in. vDistStart = vDistEnd; scaleStart = minScale(); vCenterStart.set(vCenterEndX, vCenterEndY); vTranslateStart.set(vTranslate); } else if (panEnabled) { // Translate to place the source image coordinate that was at the center of the pinch at the start // at the center of the pinch now, to give simultaneous pan + zoom. float vLeftStart = vCenterStart.x - vTranslateStart.x; float vTopStart = vCenterStart.y - vTranslateStart.y; float vLeftNow = vLeftStart * (scale / scaleStart); float vTopNow = vTopStart * (scale / scaleStart); vTranslate.x = vCenterEndX - vLeftNow; vTranslate.y = vCenterEndY - vTopNow; } else if (sRequestedCenter != null) { // With a center specified from code, zoom around that point. vTranslate.x = (getWidth() / 2) - (scale * sRequestedCenter.x); vTranslate.y = (getHeight() / 2) - (scale * sRequestedCenter.y); } else { // With no requested center, scale around the image center. vTranslate.x = (getWidth() / 2) - (scale * (sWidth() / 2)); vTranslate.y = (getHeight() / 2) - (scale * (sHeight() / 2)); } fitToBounds(true); refreshRequiredTiles(false); } } else if (isQuickScaling) { // One finger zoom // Stole Google's Magical Formula to make sure it feels the exact same float dist = Math.abs(vCenterStart.y - event.getY()) * 2 + quickScaleThreshold; if (quickScaleLastDistance == -1F) quickScaleLastDistance = dist; boolean isUpwards = event.getY() > quickScaleLastPoint.y; quickScaleLastPoint.set(0, event.getY()); float spanDiff = (Math.abs(1 - (dist / quickScaleLastDistance)) * 0.5F); if (spanDiff > 0.03f || quickScaleMoved) { quickScaleMoved = true; float multiplier = 1; if (quickScaleLastDistance > 0) { multiplier = isUpwards ? (1 + spanDiff) : (1 - spanDiff); } setScale(Math.max(minScale(), Math.min(maxScale, scale * multiplier))); if (panEnabled) { float vLeftStart = vCenterStart.x - vTranslateStart.x; float vTopStart = vCenterStart.y - vTranslateStart.y; float vLeftNow = vLeftStart * (scale / scaleStart); float vTopNow = vTopStart * (scale / scaleStart); vTranslate.x = vCenterStart.x - vLeftNow; vTranslate.y = vCenterStart.y - vTopNow; } else if (sRequestedCenter != null) { // With a center specified from code, zoom around that point. vTranslate.x = (getWidth() / 2) - (scale * sRequestedCenter.x); vTranslate.y = (getHeight() / 2) - (scale * sRequestedCenter.y); } else { // With no requested center, scale around the image center. vTranslate.x = (getWidth() / 2) - (scale * (sWidth() / 2)); vTranslate.y = (getHeight() / 2) - (scale * (sHeight() / 2)); } } quickScaleLastDistance = dist; fitToBounds(true); refreshRequiredTiles(false); consumed = true; } else if (!isZooming) { // One finger pan - translate the image. We do this calculation even with pan disabled so click // and long click behaviour is preserved. float dx = Math.abs(event.getX() - vCenterStart.x); float dy = Math.abs(event.getY() - vCenterStart.y); if (dx > 5 || dy > 5 || isPanning) { consumed = true; vTranslate.x = vTranslateStart.x + (event.getX() - vCenterStart.x); vTranslate.y = vTranslateStart.y + (event.getY() - vCenterStart.y); float lastX = vTranslate.x; float lastY = vTranslate.y; fitToBounds(true); boolean atXEdge = lastX != vTranslate.x; boolean edgeXSwipe = atXEdge && dx > dy && !isPanning; boolean yPan = lastY == vTranslate.y && dy > 15; if (!edgeXSwipe && (!atXEdge || yPan || isPanning)) { isPanning = true; } else if (dx > 5) { // Haven't panned the image, and we're at the left or right edge. Switch to page swipe. maxTouchCount = 0; handler.removeMessages(MESSAGE_LONG_CLICK); getParent().requestDisallowInterceptTouchEvent(false); } if (!panEnabled) { vTranslate.x = vTranslateStart.x; vTranslate.y = vTranslateStart.y; getParent().requestDisallowInterceptTouchEvent(false); } refreshRequiredTiles(false); } } } if (consumed) { handler.removeMessages(MESSAGE_LONG_CLICK); invalidate(); return true; } break; case MotionEvent.ACTION_UP: case MotionEvent.ACTION_POINTER_UP: case MotionEvent.ACTION_POINTER_2_UP: handler.removeMessages(MESSAGE_LONG_CLICK); if (isQuickScaling) { isQuickScaling = false; if (!quickScaleMoved) { doubleTapZoom(quickScaleCenter, vCenterStart); } } if (maxTouchCount > 0 && (isZooming || isPanning)) { if (isZooming && touchCount == 2) { // Convert from zoom to pan with remaining touch isPanning = true; vTranslateStart.set(vTranslate.x, vTranslate.y); if (event.getActionIndex() == 1) { vCenterStart.set(event.getX(0), event.getY(0)); } else { vCenterStart.set(event.getX(1), event.getY(1)); } } if (touchCount < 3) { // End zooming when only one touch point isZooming = false; } if (touchCount < 2) { // End panning when no touch points isPanning = false; maxTouchCount = 0; } // Trigger load of tiles now required refreshRequiredTiles(true); return true; } if (touchCount == 1) { isZooming = false; isPanning = false; maxTouchCount = 0; } return true; } return super.onTouchEvent(event); }
From source file:com.cyanogenmod.filemanager.ui.widgets.ViewDragHelper.java
/** * Process a touch event received by the parent view. This method will dispatch callback events * as needed before returning. The parent view's onTouchEvent implementation should call this. * * @param ev The touch event received by the parent view *//*from ww w .j a va 2 s.co m*/ public void processTouchEvent(MotionEvent ev) { final int action = ev.getActionMasked(); final int actionIndex = ev.getActionIndex(); if (action == MotionEvent.ACTION_DOWN) { // Reset things for a new event stream, just in case we didn't get // the whole previous stream. cancel(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action) { case MotionEvent.ACTION_DOWN: { final float x = ev.getX(); final float y = ev.getY(); final int pointerId = ev.getPointerId(0); final View toCapture = findTopChildUnder((int) x, (int) y); saveInitialMotion(x, y, pointerId); // Since the parent is already directly processing this touch event, // there is no reason to delay for a slop before dragging. // Start immediately if possible. tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } break; } case MotionEvent.ACTION_POINTER_DOWN: { final int pointerId = ev.getPointerId(actionIndex); final float x = ev.getX(actionIndex); final float y = ev.getY(actionIndex); saveInitialMotion(x, y, pointerId); // A ViewDragHelper can only manipulate one view at a time. if (mDragState == STATE_IDLE) { // If we're idle we can do anything! Treat it like a normal down event. final View toCapture = findTopChildUnder((int) x, (int) y); tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } } else if (isCapturedViewUnder((int) x, (int) y)) { // We're still tracking a captured view. If the same view is under this // point, we'll swap to controlling it with this pointer instead. // (This will still work if we're "catching" a settling view.) tryCaptureViewForDrag(mCapturedView, pointerId); } break; } case MotionEvent.ACTION_MOVE: { if (mDragState == STATE_DRAGGING) { final int index = ev.findPointerIndex(mActivePointerId); final float x = ev.getX(index); final float y = ev.getY(index); final int idx = (int) (x - mLastMotionX[mActivePointerId]); final int idy = (int) (y - mLastMotionY[mActivePointerId]); dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy); saveLastMotion(ev); } else { // Check to see if any pointer is now over a draggable view. final int pointerCount = ev.getPointerCount(); for (int i = 0; i < pointerCount; i++) { final int pointerId = ev.getPointerId(i); final float x = ev.getX(i); final float y = ev.getY(i); final float dx = x - mInitialMotionX[pointerId]; final float dy = y - mInitialMotionY[pointerId]; reportNewEdgeDrags(dx, dy, pointerId); if (mDragState == STATE_DRAGGING) { // Callback might have started an edge drag. break; } final View toCapture = findTopChildUnder((int) x, (int) y); if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) { break; } } saveLastMotion(ev); } break; } case MotionEvent.ACTION_POINTER_UP: { final int pointerId = ev.getPointerId(actionIndex); if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) { // Try to find another pointer that's still holding on to the captured view. int newActivePointer = INVALID_POINTER; final int pointerCount = ev.getPointerCount(); for (int i = 0; i < pointerCount; i++) { final int id = ev.getPointerId(i); if (id == mActivePointerId) { // This one's going away, skip. continue; } final float x = ev.getX(i); final float y = ev.getY(i); if (findTopChildUnder((int) x, (int) y) == mCapturedView && tryCaptureViewForDrag(mCapturedView, id)) { newActivePointer = mActivePointerId; break; } } if (newActivePointer == INVALID_POINTER) { // We didn't find another pointer still touching the view, release it. releaseViewForPointerUp(); } } clearMotionHistory(pointerId); break; } case MotionEvent.ACTION_UP: { if (mDragState == STATE_DRAGGING) { releaseViewForPointerUp(); } cancel(); break; } case MotionEvent.ACTION_CANCEL: { if (mDragState == STATE_DRAGGING) { dispatchViewReleased(0, 0); } cancel(); break; } } }
From source file:jackson.com.slidingmenulib.MyViewDragHelper.java
/** * Process a touch event received by the parent view. This method will dispatch callback events * as needed before returning. The parent view's onTouchEvent implementation should call this. * * @param ev The touch event received by the parent view *///from w w w .ja v a2s .c om public void processTouchEvent(MotionEvent ev) { final int action = ev.getActionMasked(); final int actionIndex = ev.getActionIndex(); if (action == MotionEvent.ACTION_DOWN) { // Reset things for a new event stream, just in case we didn't get // the whole previous stream. cancel(); } if (mVelocityTracker == null) { mVelocityTracker = VelocityTracker.obtain(); } mVelocityTracker.addMovement(ev); switch (action) { case MotionEvent.ACTION_DOWN: { final float x = ev.getX(); final float y = ev.getY(); final int pointerId = ev.getPointerId(0); final View toCapture = findTopChildUnder((int) x, (int) y); saveInitialMotion(x, y, pointerId); // Since the parent is already directly processing this touch event, // there is no reason to delay for a slop before dragging. // Start immediately if possible. tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } break; } case MotionEvent.ACTION_POINTER_DOWN: { final int pointerId = ev.getPointerId(actionIndex); final float x = ev.getX(actionIndex); final float y = ev.getY(actionIndex); saveInitialMotion(x, y, pointerId); // A ViewDragHelper can only manipulate one view at a time. if (mDragState == STATE_IDLE) { // If we're idle we can do anything! Treat it like a normal down event. final View toCapture = findTopChildUnder((int) x, (int) y); tryCaptureViewForDrag(toCapture, pointerId); final int edgesTouched = mInitialEdgesTouched[pointerId]; if ((edgesTouched & mTrackingEdges) != 0) { mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId); } } else if (isCapturedViewUnder((int) x, (int) y)) { // We're still tracking a captured view. If the same view is under this // point, we'll swap to controlling it with this pointer instead. // (This will still work if we're "catching" a settling view.) tryCaptureViewForDrag(mCapturedView, pointerId); } break; } case MotionEvent.ACTION_MOVE: { if (mDragState == STATE_DRAGGING) { // If pointer is invalid then skip the ACTION_MOVE. if (!isValidPointerForActionMove(mActivePointerId)) break; final int index = ev.findPointerIndex(mActivePointerId); final float x = ev.getX(index); final float y = ev.getY(index); final int idx = (int) (x - mLastMotionX[mActivePointerId]); final int idy = (int) (y - mLastMotionY[mActivePointerId]); dragTo(mCapturedView.getLeft() + idx, mCapturedView.getTop() + idy, idx, idy); saveLastMotion(ev); } else { // Check to see if any pointer is now over a draggable view. final int pointerCount = ev.getPointerCount(); for (int i = 0; i < pointerCount; i++) { final int pointerId = ev.getPointerId(i); // If pointer is invalid then skip the ACTION_MOVE. if (!isValidPointerForActionMove(pointerId)) continue; final float x = ev.getX(i); final float y = ev.getY(i); final float dx = x - mInitialMotionX[pointerId]; final float dy = y - mInitialMotionY[pointerId]; reportNewEdgeDrags(dx, dy, pointerId); if (mDragState == STATE_DRAGGING) { // Callback might have started an edge drag. break; } final View toCapture = findTopChildUnder((int) x, (int) y); if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) { break; } } saveLastMotion(ev); } break; } case MotionEvent.ACTION_POINTER_UP: { final int pointerId = ev.getPointerId(actionIndex); if (mDragState == STATE_DRAGGING && pointerId == mActivePointerId) { // Try to find another pointer that's still holding on to the captured view. int newActivePointer = INVALID_POINTER; final int pointerCount = ev.getPointerCount(); for (int i = 0; i < pointerCount; i++) { final int id = ev.getPointerId(i); if (id == mActivePointerId) { // This one's going away, skip. continue; } final float x = ev.getX(i); final float y = ev.getY(i); if (findTopChildUnder((int) x, (int) y) == mCapturedView && tryCaptureViewForDrag(mCapturedView, id)) { newActivePointer = mActivePointerId; break; } } if (newActivePointer == INVALID_POINTER) { // We didn't find another pointer still touching the view, release it. releaseViewForPointerUp(); } } clearMotionHistory(pointerId); break; } case MotionEvent.ACTION_UP: { if (mDragState == STATE_DRAGGING) { releaseViewForPointerUp(); } cancel(); break; } case MotionEvent.ACTION_CANCEL: { if (mDragState == STATE_DRAGGING) { dispatchViewReleased(0, 0); } cancel(); break; } } }
From source file:com.example.SmartBoard.DrawingView.java
public boolean onTouchDragEvent(MotionEvent event) { boolean handled = false; JSONObject mObjectTouched;/*from w w w .ja v a 2s. c o m*/ int X; int Y; int pointerId; int actionIndex = event.getActionIndex(); //get coordinates and make object transparent switch (event.getActionMasked()) { case MotionEvent.ACTION_DOWN: dragFinished = false; //it's the first pointer, so clear all existing pointers data mObjectPointers.clear(); X = (int) event.getX(actionIndex); Y = (int) event.getY(actionIndex); dragX = X; dragY = Y; String objectType = ""; //check if we've touched inside some object mObjectTouched = getTouchedObject(X, Y); if (mObjectTouched == null) { return true; } else { objectType = getObjectType(mObjectTouched); } if (objectType.compareTo("Circle") == 0) { try { mObjectTouched.put("x", X); mObjectTouched.put("y", Y); } catch (JSONException e) { e.printStackTrace(); } } else if (objectType.compareTo("Rectangle") == 0) { Rect tempRect = Rect.unflattenFromString(mObjectTouched.optString("dimens")); tempRect.set(X, Y, X + tempRect.width(), Y + tempRect.height()); try { mObjectTouched.put("dimens", tempRect.flattenToString()); } catch (JSONException e) { } } else if (objectType.compareTo("Line") == 0) { if (lengthOfLine(X, Y, mObjectTouched.optInt("startx"), mObjectTouched.optInt("starty")) < lengthOfLine(X, Y, mObjectTouched.optInt("stopx"), mObjectTouched.optInt("stopy"))) { try { mObjectTouched.put("startx", X); mObjectTouched.put("starty", Y); mObjectTouched.put("length", lengthOfLine(X, Y, mObjectTouched.optInt("stopx"), mObjectTouched.optInt("stopy"))); } catch (JSONException e) { e.printStackTrace(); } dragLineStart = true; } else { try { mObjectTouched.put("stopx", X); mObjectTouched.put("stopy", Y); mObjectTouched.put("length", lengthOfLine(X, Y, mObjectTouched.optInt("startx"), mObjectTouched.optInt("starty"))); } catch (JSONException e) { e.printStackTrace(); } dragLineStart = false; } } else if (objectType.compareTo("Text") == 0) { try { mObjectTouched.put("x", X); mObjectTouched.put("y", Y); Rect tempRect = Rect.unflattenFromString(mObjectTouched.getString("region")); tempRect.set(X, Y, tempRect.width() + X, tempRect.height() + Y); mObjectTouched.put("region", tempRect.flattenToString()); } catch (JSONException e) { e.printStackTrace(); } } mObjectPointers.put(event.getPointerId(0), mObjectTouched); if (mObjectTouched != null) { mqtt.publishObject(mObjectTouched); } invalidate(); handled = true; break; case MotionEvent.ACTION_POINTER_DOWN: break; case MotionEvent.ACTION_MOVE: dragFinished = false; final int pointerCount = event.getPointerCount(); for (actionIndex = 0; actionIndex < pointerCount; actionIndex++) { //some pointer has moved, search it by pointer id pointerId = event.getPointerId(actionIndex); X = (int) event.getX(actionIndex); Y = (int) event.getY(actionIndex); dragX = X; dragY = Y; mObjectTouched = mObjectPointers.get(pointerId); if (mObjectTouched == null) continue; // if null no object was touched so skip if (mObjectTouched.optString("type").compareTo("Circle") == 0) { try { mObjectTouched.put("x", X); mObjectTouched.put("y", Y); } catch (JSONException e) { } } else if (mObjectTouched.optString("type").compareTo("Rectangle") == 0) { Rect tempRect = Rect.unflattenFromString(mObjectTouched.optString("dimens")); tempRect.set(X, Y, X + tempRect.width(), Y + tempRect.height()); try { mObjectTouched.put("dimens", tempRect.flattenToString()); } catch (JSONException e) { } } else if (mObjectTouched.optString("type").compareTo("Text") == 0) { try { mObjectTouched.put("x", X); mObjectTouched.put("y", Y); Rect tempRect = Rect.unflattenFromString(mObjectTouched.getString("region")); tempRect.set(X, Y, tempRect.width() + X, tempRect.height() + Y); mObjectTouched.put("region", tempRect.flattenToString()); } catch (JSONException e) { e.printStackTrace(); } } else if (mObjectTouched.optString("type").compareTo("Line") == 0) { if (dragLineStart) { try { mObjectTouched.put("startx", X); mObjectTouched.put("starty", Y); mObjectTouched.put("length", lengthOfLine(X, Y, mObjectTouched.optInt("stopx"), mObjectTouched.optInt("stopy"))); //mObjectTouched.put("stopx", tempStopX); // mObjectTouched.put("stopy", tempStopY); } catch (JSONException e) { e.printStackTrace(); } } else { try { mObjectTouched.put("stopx", X); mObjectTouched.put("stopy", Y); mObjectTouched.put("length", lengthOfLine(X, Y, mObjectTouched.optInt("startx"), mObjectTouched.optInt("starty"))); //mObjectTouched.put("stopx", tempStopX); // mObjectTouched.put("stopy", tempStopY); } catch (JSONException e) { e.printStackTrace(); } } } if (mObjectTouched != null) { mqtt.publishObject(mObjectTouched); } } invalidate(); handled = true; break; case MotionEvent.ACTION_UP: dragFinished = true; mObjectPointers.clear(); invalidate(); handled = true; break; case MotionEvent.ACTION_CANCEL: handled = true; break; default: // do nothing break; } return super.onTouchEvent(event) || handled; }
From source file:kr.wdream.ui.PhotoViewer.java
private boolean onTouchEvent(MotionEvent ev) { if (animationInProgress != 0 || animationStartTime != 0) { return false; }/*from w ww .j a v a 2 s.co m*/ if (currentEditMode == 2) { photoFilterView.onTouch(ev); return true; } if (currentEditMode == 1) { if (ev.getPointerCount() == 1) { if (photoCropView.onTouch(ev)) { updateMinMax(scale); return true; } } else { photoCropView.onTouch(null); } } if (captionEditText.isPopupShowing() || captionEditText.isKeyboardVisible()) { if (ev.getAction() == MotionEvent.ACTION_UP) { closeCaptionEnter(true); } return true; } if (currentEditMode == 0 && ev.getPointerCount() == 1 && gestureDetector.onTouchEvent(ev)) { if (doubleTap) { doubleTap = false; moving = false; zooming = false; checkMinMax(false); return true; } } if (ev.getActionMasked() == MotionEvent.ACTION_DOWN || ev.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN) { if (currentEditMode == 1) { photoCropView.cancelAnimationRunnable(); } discardTap = false; if (!scroller.isFinished()) { scroller.abortAnimation(); } if (!draggingDown && !changingPage) { if (canZoom && ev.getPointerCount() == 2) { pinchStartDistance = (float) Math.hypot(ev.getX(1) - ev.getX(0), ev.getY(1) - ev.getY(0)); pinchStartScale = scale; pinchCenterX = (ev.getX(0) + ev.getX(1)) / 2.0f; pinchCenterY = (ev.getY(0) + ev.getY(1)) / 2.0f; pinchStartX = translationX; pinchStartY = translationY; zooming = true; moving = false; if (velocityTracker != null) { velocityTracker.clear(); } } else if (ev.getPointerCount() == 1) { moveStartX = ev.getX(); dragY = moveStartY = ev.getY(); draggingDown = false; canDragDown = true; if (velocityTracker != null) { velocityTracker.clear(); } } } } else if (ev.getActionMasked() == MotionEvent.ACTION_MOVE) { if (currentEditMode == 1) { photoCropView.cancelAnimationRunnable(); } if (canZoom && ev.getPointerCount() == 2 && !draggingDown && zooming && !changingPage) { discardTap = true; scale = (float) Math.hypot(ev.getX(1) - ev.getX(0), ev.getY(1) - ev.getY(0)) / pinchStartDistance * pinchStartScale; translationX = (pinchCenterX - getContainerViewWidth() / 2) - ((pinchCenterX - getContainerViewWidth() / 2) - pinchStartX) * (scale / pinchStartScale); translationY = (pinchCenterY - getContainerViewHeight() / 2) - ((pinchCenterY - getContainerViewHeight() / 2) - pinchStartY) * (scale / pinchStartScale); updateMinMax(scale); containerView.invalidate(); } else if (ev.getPointerCount() == 1) { if (velocityTracker != null) { velocityTracker.addMovement(ev); } float dx = Math.abs(ev.getX() - moveStartX); float dy = Math.abs(ev.getY() - dragY); if (dx > AndroidUtilities.dp(3) || dy > AndroidUtilities.dp(3)) { discardTap = true; } if (!(placeProvider instanceof EmptyPhotoViewerProvider) && currentEditMode == 0 && canDragDown && !draggingDown && scale == 1 && dy >= AndroidUtilities.dp(30) && dy / 2 > dx) { draggingDown = true; moving = false; dragY = ev.getY(); if (isActionBarVisible && canShowBottom) { toggleActionBar(false, true); } else if (pickerView.getVisibility() == View.VISIBLE) { toggleActionBar(false, true); toggleCheckImageView(false); } return true; } else if (draggingDown) { translationY = ev.getY() - dragY; containerView.invalidate(); } else if (!invalidCoords && animationStartTime == 0) { float moveDx = moveStartX - ev.getX(); float moveDy = moveStartY - ev.getY(); if (moving || currentEditMode != 0 || scale == 1 && Math.abs(moveDy) + AndroidUtilities.dp(12) < Math.abs(moveDx) || scale != 1) { if (!moving) { moveDx = 0; moveDy = 0; moving = true; canDragDown = false; } moveStartX = ev.getX(); moveStartY = ev.getY(); updateMinMax(scale); if (translationX < minX && (currentEditMode != 0 || !rightImage.hasImage()) || translationX > maxX && (currentEditMode != 0 || !leftImage.hasImage())) { moveDx /= 3.0f; } if (maxY == 0 && minY == 0 && currentEditMode == 0) { if (translationY - moveDy < minY) { translationY = minY; moveDy = 0; } else if (translationY - moveDy > maxY) { translationY = maxY; moveDy = 0; } } else { if (translationY < minY || translationY > maxY) { moveDy /= 3.0f; } } translationX -= moveDx; if (scale != 1 || currentEditMode != 0) { translationY -= moveDy; } containerView.invalidate(); } } else { invalidCoords = false; moveStartX = ev.getX(); moveStartY = ev.getY(); } } } else if (ev.getActionMasked() == MotionEvent.ACTION_CANCEL || ev.getActionMasked() == MotionEvent.ACTION_UP || ev.getActionMasked() == MotionEvent.ACTION_POINTER_UP) { if (currentEditMode == 1) { photoCropView.startAnimationRunnable(); } if (zooming) { invalidCoords = true; if (scale < 1.0f) { updateMinMax(1.0f); animateTo(1.0f, 0, 0, true); } else if (scale > 3.0f) { float atx = (pinchCenterX - getContainerViewWidth() / 2) - ((pinchCenterX - getContainerViewWidth() / 2) - pinchStartX) * (3.0f / pinchStartScale); float aty = (pinchCenterY - getContainerViewHeight() / 2) - ((pinchCenterY - getContainerViewHeight() / 2) - pinchStartY) * (3.0f / pinchStartScale); updateMinMax(3.0f); if (atx < minX) { atx = minX; } else if (atx > maxX) { atx = maxX; } if (aty < minY) { aty = minY; } else if (aty > maxY) { aty = maxY; } animateTo(3.0f, atx, aty, true); } else { checkMinMax(true); } zooming = false; } else if (draggingDown) { if (Math.abs(dragY - ev.getY()) > getContainerViewHeight() / 6.0f) { closePhoto(true, false); } else { if (pickerView.getVisibility() == View.VISIBLE) { toggleActionBar(true, true); toggleCheckImageView(true); } animateTo(1, 0, 0, false); } draggingDown = false; } else if (moving) { float moveToX = translationX; float moveToY = translationY; updateMinMax(scale); moving = false; canDragDown = true; float velocity = 0; if (velocityTracker != null && scale == 1) { velocityTracker.computeCurrentVelocity(1000); velocity = velocityTracker.getXVelocity(); } if (currentEditMode == 0) { if ((translationX < minX - getContainerViewWidth() / 3 || velocity < -AndroidUtilities.dp(650)) && rightImage.hasImage()) { goToNext(); return true; } if ((translationX > maxX + getContainerViewWidth() / 3 || velocity > AndroidUtilities.dp(650)) && leftImage.hasImage()) { goToPrev(); return true; } } if (translationX < minX) { moveToX = minX; } else if (translationX > maxX) { moveToX = maxX; } if (translationY < minY) { moveToY = minY; } else if (translationY > maxY) { moveToY = maxY; } animateTo(scale, moveToX, moveToY, false); } } return false; }
From source file:org.telegram.ui.ArticleViewer.java
private boolean processTouchEvent(MotionEvent ev) { if (photoAnimationInProgress != 0 || animationStartTime != 0) { return false; }/*from w w w. jav a 2 s . c om*/ if (ev.getPointerCount() == 1 && gestureDetector.onTouchEvent(ev) && doubleTap) { doubleTap = false; moving = false; zooming = false; checkMinMax(false); return true; } if (ev.getActionMasked() == MotionEvent.ACTION_DOWN || ev.getActionMasked() == MotionEvent.ACTION_POINTER_DOWN) { discardTap = false; if (!scroller.isFinished()) { scroller.abortAnimation(); } if (!draggingDown && !changingPage) { if (canZoom && ev.getPointerCount() == 2) { pinchStartDistance = (float) Math.hypot(ev.getX(1) - ev.getX(0), ev.getY(1) - ev.getY(0)); pinchStartScale = scale; pinchCenterX = (ev.getX(0) + ev.getX(1)) / 2.0f; pinchCenterY = (ev.getY(0) + ev.getY(1)) / 2.0f; pinchStartX = translationX; pinchStartY = translationY; zooming = true; moving = false; if (velocityTracker != null) { velocityTracker.clear(); } } else if (ev.getPointerCount() == 1) { moveStartX = ev.getX(); dragY = moveStartY = ev.getY(); draggingDown = false; canDragDown = true; if (velocityTracker != null) { velocityTracker.clear(); } } } } else if (ev.getActionMasked() == MotionEvent.ACTION_MOVE) { if (canZoom && ev.getPointerCount() == 2 && !draggingDown && zooming && !changingPage) { discardTap = true; scale = (float) Math.hypot(ev.getX(1) - ev.getX(0), ev.getY(1) - ev.getY(0)) / pinchStartDistance * pinchStartScale; translationX = (pinchCenterX - getContainerViewWidth() / 2) - ((pinchCenterX - getContainerViewWidth() / 2) - pinchStartX) * (scale / pinchStartScale); translationY = (pinchCenterY - getContainerViewHeight() / 2) - ((pinchCenterY - getContainerViewHeight() / 2) - pinchStartY) * (scale / pinchStartScale); updateMinMax(scale); photoContainerView.invalidate(); } else if (ev.getPointerCount() == 1) { if (velocityTracker != null) { velocityTracker.addMovement(ev); } float dx = Math.abs(ev.getX() - moveStartX); float dy = Math.abs(ev.getY() - dragY); if (dx > AndroidUtilities.dp(3) || dy > AndroidUtilities.dp(3)) { discardTap = true; } if (canDragDown && !draggingDown && scale == 1 && dy >= AndroidUtilities.dp(30) && dy / 2 > dx) { draggingDown = true; moving = false; dragY = ev.getY(); if (isActionBarVisible) { toggleActionBar(false, true); } return true; } else if (draggingDown) { translationY = ev.getY() - dragY; photoContainerView.invalidate(); } else if (!invalidCoords && animationStartTime == 0) { float moveDx = moveStartX - ev.getX(); float moveDy = moveStartY - ev.getY(); if (moving || scale == 1 && Math.abs(moveDy) + AndroidUtilities.dp(12) < Math.abs(moveDx) || scale != 1) { if (!moving) { moveDx = 0; moveDy = 0; moving = true; canDragDown = false; } moveStartX = ev.getX(); moveStartY = ev.getY(); updateMinMax(scale); if (translationX < minX && (!rightImage.hasImage()) || translationX > maxX && !leftImage.hasImage()) { moveDx /= 3.0f; } if (maxY == 0 && minY == 0) { if (translationY - moveDy < minY) { translationY = minY; moveDy = 0; } else if (translationY - moveDy > maxY) { translationY = maxY; moveDy = 0; } } else { if (translationY < minY || translationY > maxY) { moveDy /= 3.0f; } } translationX -= moveDx; if (scale != 1) { translationY -= moveDy; } photoContainerView.invalidate(); } } else { invalidCoords = false; moveStartX = ev.getX(); moveStartY = ev.getY(); } } } else if (ev.getActionMasked() == MotionEvent.ACTION_CANCEL || ev.getActionMasked() == MotionEvent.ACTION_UP || ev.getActionMasked() == MotionEvent.ACTION_POINTER_UP) { if (zooming) { invalidCoords = true; if (scale < 1.0f) { updateMinMax(1.0f); animateTo(1.0f, 0, 0, true); } else if (scale > 3.0f) { float atx = (pinchCenterX - getContainerViewWidth() / 2) - ((pinchCenterX - getContainerViewWidth() / 2) - pinchStartX) * (3.0f / pinchStartScale); float aty = (pinchCenterY - getContainerViewHeight() / 2) - ((pinchCenterY - getContainerViewHeight() / 2) - pinchStartY) * (3.0f / pinchStartScale); updateMinMax(3.0f); if (atx < minX) { atx = minX; } else if (atx > maxX) { atx = maxX; } if (aty < minY) { aty = minY; } else if (aty > maxY) { aty = maxY; } animateTo(3.0f, atx, aty, true); } else { checkMinMax(true); } zooming = false; } else if (draggingDown) { if (Math.abs(dragY - ev.getY()) > getContainerViewHeight() / 6.0f) { closePhoto(true); } else { animateTo(1, 0, 0, false); } draggingDown = false; } else if (moving) { float moveToX = translationX; float moveToY = translationY; updateMinMax(scale); moving = false; canDragDown = true; float velocity = 0; if (velocityTracker != null && scale == 1) { velocityTracker.computeCurrentVelocity(1000); velocity = velocityTracker.getXVelocity(); } if ((translationX < minX - getContainerViewWidth() / 3 || velocity < -AndroidUtilities.dp(650)) && rightImage.hasImage()) { goToNext(); return true; } if ((translationX > maxX + getContainerViewWidth() / 3 || velocity > AndroidUtilities.dp(650)) && leftImage.hasImage()) { goToPrev(); return true; } if (translationX < minX) { moveToX = minX; } else if (translationX > maxX) { moveToX = maxX; } if (translationY < minY) { moveToY = minY; } else if (translationY > maxY) { moveToY = maxY; } animateTo(scale, moveToX, moveToY, false); } } return false; }
From source file:processing.core.PApplet.java
protected void enqueueMotionEvent(MotionEvent event) { synchronized (motionLock) { // on first run, allocate array for motion events if (motionEventQueue == null) { motionEventQueue = new PMotionEvent[20]; for (int i = 0; i < motionEventQueue.length; i++) { motionEventQueue[i] = new PMotionEvent(); }//from w ww . j a v a 2s. co m } // allocate more PMotionEvent objects if we're out int historyCount = event.getHistorySize(); // println("motion: " + motionEventCount + " " + historyCount + " " // + motionEventQueue.length); if (motionEventCount + historyCount >= motionEventQueue.length) { int atLeast = motionEventCount + historyCount + 1; PMotionEvent[] temp = new PMotionEvent[max(atLeast, motionEventCount << 1)]; if (PApplet.DEBUG) { println("motion: " + motionEventCount + " " + historyCount + " " + motionEventQueue.length); println("allocating " + temp.length + " entries for motion events"); } System.arraycopy(motionEventQueue, 0, temp, 0, motionEventCount); motionEventQueue = temp; for (int i = motionEventCount; i < motionEventQueue.length; i++) { motionEventQueue[i] = new PMotionEvent(); } } // this will be the last event in the list PMotionEvent pme = motionEventQueue[motionEventCount + historyCount]; pme.setAction(event.getAction()); pme.setNumPointers(event.getPointerCount()); pme.setPointers(event); // historical events happen before the 'current' values if (pme.action == MotionEvent.ACTION_MOVE && historyCount > 0) { for (int i = 0; i < historyCount; i++) { PMotionEvent hist = motionEventQueue[motionEventCount++]; hist.setAction(event.getAction()); hist.setNumPointers(event.getPointerCount()); hist.setPointers(event, i); } } // now step over the last one that we used to assign 'pme' // if historyCount is 0, this just steps over the last motionEventCount++; } }