Example usage for android.view MotionEvent getX

List of usage examples for android.view MotionEvent getX

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Introduction

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

Prototype

public final float getX()

Source Link

Document

#getX(int) for the first pointer index (may be an arbitrary pointer identifier).

Usage

From source file:com.albedinsky.android.support.ui.widget.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  w  w  w . j av  a 2s  . c  o  m
public void processTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    final int actionIndex = MotionEventCompat.getActionIndex(ev);

    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 = MotionEventCompat.getPointerId(ev, 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 MotionEventCompat.ACTION_POINTER_DOWN: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        final float x = MotionEventCompat.getX(ev, actionIndex);
        final float y = MotionEventCompat.getY(ev, 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 = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            final float x = MotionEventCompat.getX(ev, index);
            final float y = MotionEventCompat.getY(ev, 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 = MotionEventCompat.getPointerCount(ev);
            for (int i = 0; i < pointerCount; i++) {
                final int pointerId = MotionEventCompat.getPointerId(ev, i);
                final float x = MotionEventCompat.getX(ev, i);
                final float y = MotionEventCompat.getY(ev, 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 MotionEventCompat.ACTION_POINTER_UP: {
        final int pointerId = MotionEventCompat.getPointerId(ev, 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 = MotionEventCompat.getPointerCount(ev);
            for (int i = 0; i < pointerCount; i++) {
                final int id = MotionEventCompat.getPointerId(ev, i);
                if (id == mActivePointerId) {
                    // This one's going away, skip.
                    continue;
                }

                final float x = MotionEventCompat.getX(ev, i);
                final float y = MotionEventCompat.getY(ev, 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:ayushi.view.customview.ViewDragHelper.java

/**
 * Check if this event as provided to the parent view's onInterceptTouchEvent should
 * cause the parent to intercept the touch event stream.
 *
 * @param ev MotionEvent provided to onInterceptTouchEvent
 * @return true if the parent view should return true from onInterceptTouchEvent
 *//*w  w  w .j a  v a2  s . c  om*/
public boolean shouldInterceptTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    final int actionIndex = MotionEventCompat.getActionIndex(ev);

    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 = MotionEventCompat.getPointerId(ev, 0);
        saveInitialMotion(x, y, pointerId);

        final View toCapture = findTopChildUnder((int) x, (int) y);

        // Catch a settling view if possible.
        if (toCapture == mCapturedView && mDragState == STATE_SETTLING) {
            tryCaptureViewForDrag(toCapture, pointerId);
        }

        final int edgesTouched = mInitialEdgesTouched[pointerId];
        if ((edgesTouched & mTrackingEdges) != 0) {
            mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        final float x = MotionEventCompat.getX(ev, actionIndex);
        final float y = MotionEventCompat.getY(ev, actionIndex);

        saveInitialMotion(x, y, pointerId);

        // A ViewDragHelper can only manipulate one view at a time.
        if (mDragState == STATE_IDLE) {
            final int edgesTouched = mInitialEdgesTouched[pointerId];
            if ((edgesTouched & mTrackingEdges) != 0) {
                mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
            }
        } else if (mDragState == STATE_SETTLING) {
            // Catch a settling view if possible.
            final View toCapture = findTopChildUnder((int) x, (int) y);
            if (toCapture == mCapturedView) {
                tryCaptureViewForDrag(toCapture, pointerId);
            }
        }
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        // First to cross a touch slop over a draggable view wins. Also report edge drags.
        final int pointerCount = MotionEventCompat.getPointerCount(ev);
        for (int i = 0; i < pointerCount && mInitialMotionX != null && mInitialMotionY != null; i++) {
            final int pointerId = MotionEventCompat.getPointerId(ev, i);
            if (pointerId >= mInitialMotionX.length || pointerId >= mInitialMotionY.length) {
                continue;
            }
            final float x = MotionEventCompat.getX(ev, i);
            final float y = MotionEventCompat.getY(ev, 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) mInitialMotionX[pointerId],
                    (int) mInitialMotionY[pointerId]);
            if (toCapture != null && checkTouchSlop(toCapture, dx, dy)
                    && tryCaptureViewForDrag(toCapture, pointerId)) {
                break;
            }
        }
        saveLastMotion(ev);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        clearMotionHistory(pointerId);
        break;
    }

    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL: {
        cancel();
        break;
    }
    }

    return mDragState == STATE_DRAGGING;
}

From source file:cn.zmdx.kaka.locker.widget.SlidingPaneLayout.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);

    // Preserve the open state based on the last view that was touched.
    if (!mCanSlide && action == MotionEvent.ACTION_DOWN && getChildCount() > 1) {
        // After the first things will be slideable.
        final View secondChild = getChildAt(1);
        if (secondChild != null) {
            mPreservedOpenState = !mDragHelper.isViewUnder(secondChild, (int) ev.getX(), (int) ev.getY());
        }/*  www  .jav a2 s  .  co  m*/
    }

    if (!mCanSlide || (mIsUnableToDrag && action != MotionEvent.ACTION_DOWN)) {
        mDragHelper.cancel();
        return super.onInterceptTouchEvent(ev);
    }

    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        mDragHelper.cancel();
        return false;
    }

    boolean interceptTap = false;

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        mIsUnableToDrag = false;
        final float x = ev.getX();
        final float y = ev.getY();
        mInitialMotionX = x;
        mInitialMotionY = y;

        if (mDragHelper.isViewUnder(mSlideableView, (int) x, (int) y) && isDimmed(mSlideableView)) {
            interceptTap = true;
        }
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        final float x = ev.getX();
        final float y = ev.getY();
        final float adx = Math.abs(x - mInitialMotionX);
        final float deltaX = x - mInitialMotionX;
        final float ady = Math.abs(y - mInitialMotionY);
        final int slop = mDragHelper.getTouchSlop();
        if ((adx > slop && ady > adx) || deltaX < 0) {
            mDragHelper.cancel();
            mIsUnableToDrag = true;
            return false;
        }
    }
    }

    final boolean interceptForDrag = mDragHelper.shouldInterceptTouchEvent(ev);

    return interceptForDrag || interceptTap;
}

From source file:illab.nabal.NabalSimpleDemoActivity.java

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_nabal_simple_demo);

    CookieSyncManager.createInstance(NabalSimpleDemoActivity.this);

    mBackground = (RelativeLayout) findViewById(R.id.relativeLayout1);

    mImgBtn1 = (ImageButton) findViewById(R.id.imageButton1);
    mImgBtn2 = (ImageButton) findViewById(R.id.imageButton2);
    mImgBtn3 = (ImageButton) findViewById(R.id.imageButton3);
    mImgBtn4 = (ImageButton) findViewById(R.id.imageButton4);
    mImgBtn5 = (ImageButton) findViewById(R.id.imageButton5);
    mImgBtn7 = (ImageButton) findViewById(R.id.imageButton7);
    mImgBtn8 = (ImageButton) findViewById(R.id.imageButton8);
    mEditText1 = (EditText) findViewById(R.id.editText1);
    mEditText2 = (EditText) findViewById(R.id.editText2);
    mEditText3 = (EditText) findViewById(R.id.editText3);

    mDialogHelper.toast("Please log in first.");

    mInputMethodManager = (InputMethodManager) getSystemService(INPUT_METHOD_SERVICE);
    mInputMethodManager.hideSoftInputFromWindow(mEditText1.getWindowToken(), 0);
    mInputMethodManager.hideSoftInputFromWindow(mEditText2.getWindowToken(), 0);

    // set a listener to background for a fling
    mGestureDetector = new GestureDetector(this, new GestureDetector.SimpleOnGestureListener() {
        @Override// w w  w.j a  va 2  s.  c  om
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
            try {
                if (Math.abs(e1.getY() - e2.getY()) > SWIPE_MAX_OFF_PATH) {
                    return false;
                }
                // right to left swipe
                if (e1.getX() - e2.getX() > SWIPE_MIN_DISTANCE
                        && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
                    if (mCurrentSnsId == SocialNetwork.FACEBOOK) {
                        toggleSnsButtons(SocialNetwork.WEIBO);
                    } else if (mCurrentSnsId == SocialNetwork.TWITTER) {
                        toggleSnsButtons(SocialNetwork.FACEBOOK);
                    } else if (mCurrentSnsId == SocialNetwork.WEIBO) {
                        toggleSnsButtons(SocialNetwork.TWITTER);
                    }
                }
                // left to right swipe
                else if (e2.getX() - e1.getX() > SWIPE_MIN_DISTANCE
                        && Math.abs(velocityX) > SWIPE_THRESHOLD_VELOCITY) {
                    if (mCurrentSnsId == SocialNetwork.FACEBOOK) {
                        toggleSnsButtons(SocialNetwork.TWITTER);
                    } else if (mCurrentSnsId == SocialNetwork.TWITTER) {
                        toggleSnsButtons(SocialNetwork.WEIBO);
                    } else if (mCurrentSnsId == SocialNetwork.WEIBO) {
                        toggleSnsButtons(SocialNetwork.FACEBOOK);
                    }
                }
            } catch (Exception e) {
                // nothing
            }
            return false;
        }
    });
    View.OnTouchListener gestureListener = new View.OnTouchListener() {
        public boolean onTouch(View v, MotionEvent event) {
            return mGestureDetector.onTouchEvent(event);
        }
    };
    mBackground.setOnTouchListener(gestureListener);

    // set a listener to background for a long-click
    mBackground.setOnLongClickListener(new OnLongClickListener() {
        public boolean onLongClick(View v) {
            Log.i(TAG, "#### background area long-clicked");
            if (mCurrentSnsId == SocialNetwork.FACEBOOK) {
                if (mFbBgBitmap != null) {
                    new PhotoDialog(NabalSimpleDemoActivity.this, mFbBgBitmap).show();
                }
            } else if (mCurrentSnsId == SocialNetwork.TWITTER) {
                if (mTwBgBitmap != null) {
                    new PhotoDialog(NabalSimpleDemoActivity.this, mTwBgBitmap).show();
                }
            } else if (mCurrentSnsId == SocialNetwork.WEIBO) {
                if (mWeBgBitmap != null) {
                    new PhotoDialog(NabalSimpleDemoActivity.this, mWeBgBitmap).show();
                }
            }
            return false;
        }
    });

    // set a listener to Facebook button
    mImgBtn3.setOnClickListener(new Button.OnClickListener() {
        public void onClick(View v) {
            //Log.i(TAG, "#### Facebook button clicked");
            toggleSnsButtons(SocialNetwork.FACEBOOK);
        }
    });

    // set a listener to Twitter button
    mImgBtn4.setOnClickListener(new Button.OnClickListener() {
        public void onClick(View v) {
            //Log.i(TAG, "#### Twitter button clicked");
            toggleSnsButtons(SocialNetwork.TWITTER);
        }
    });

    // set a listener to Weibo button
    mImgBtn5.setOnClickListener(new Button.OnClickListener() {
        public void onClick(View v) {
            //Log.i(TAG, "#### Weibo button clicked");
            toggleSnsButtons(SocialNetwork.WEIBO);
        }
    });

    // set a listener to portrait button
    mImgBtn1.setOnClickListener(new Button.OnClickListener() {
        public void onClick(View v) {
            //Log.i(TAG, "#### portrait button clicked");
            clearOutProfileUi();
            clearProfileBufferData(mCurrentSnsId);
            mHasErrorOccurredWhileFetchingProfile = false;
            mImgBtn1.setVisibility(View.GONE);
            requestMyProfile();
            requestMyLastStatus();
        }
    });
    mImgBtn1.setOnLongClickListener(new OnLongClickListener() {
        public boolean onLongClick(View paramView) {
            //Log.i(TAG, "#### portrait button long-clicked");
            confirmJumpToSnsProfile();
            return true;
        }
    });

    // set a listener to photo attach button
    mImgBtn7.setOnClickListener(new Button.OnClickListener() {
        public void onClick(View v) {
            //Log.i(TAG, "#### photo attach button clicked");

            // if not logged-in yet
            if (mOpAgent.isSessionValid(mCurrentSnsId) == false) {
                mEditText1.setText("");
                mDialogHelper.toast("Please log in first.");
            }

            // if logged-in already
            else {
                final String message = mEditText1.getText().toString();
                if (StringHelper.isEmpty(message) == true) {
                    mDialogHelper.toast("Please enter the photo description correctly.");
                } else {
                    Intent pickPhoto = new Intent(Intent.ACTION_PICK,
                            android.provider.MediaStore.Images.Media.EXTERNAL_CONTENT_URI);
                    startActivityForResult(pickPhoto, REQ_CODE_FETCH_BITMAP_FROM_GALLERY);
                }
            }
        }
    });

    // set a listener to status update button
    mImgBtn2.setOnClickListener(new Button.OnClickListener() {
        public void onClick(View v) {
            //Log.i(TAG, "#### status update button clicked");

            // if not logged-in yet
            if (mOpAgent.isSessionValid(mCurrentSnsId) == false) {
                mEditText1.setText("");
                mDialogHelper.toast("Please log in first.");
            }

            // if logged-in already
            else {
                final String message = mEditText1.getText().toString();
                if (StringHelper.isEmpty(message) == true) {
                    mDialogHelper.toast("Please enter your status correctly.");
                } else {
                    postStatus(message);
                }
            }
        }
    });

    // set a listener to link button
    mImgBtn8.setOnClickListener(new Button.OnClickListener() {
        public void onClick(View v) {
            //Log.i(TAG, "#### photo attach button clicked");

            // if not logged-in yet
            if (mOpAgent.isSessionValid(mCurrentSnsId) == false) {
            }

            // if logged-in already
            else {
                confirmJumpToLinkDialog();
            }
        }
    });
}

From source file:xiaofan.llongimageview.view.SubsamplingScaleImageView.java

private void setGestureDetector(final Context context) {
    this.detector = new GestureDetector(context, new GestureDetector.SimpleOnGestureListener() {
        @Override//from w w  w  . j a v  a  2 s.  c o m
        public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {
            if (panEnabled && readySent && vTranslate != null && e1 != null && e2 != null
                    && (Math.abs(e1.getX() - e2.getX()) > 50 || Math.abs(e1.getY() - e2.getY()) > 50)
                    && (Math.abs(velocityX) > 500 || Math.abs(velocityY) > 500) && !isZooming) {
                PointF vTranslateEnd = new PointF(vTranslate.x + (velocityX * 0.25f),
                        vTranslate.y + (velocityY * 0.25f));
                float sCenterXEnd = ((getWidth() / 2) - vTranslateEnd.x) / scale;
                float sCenterYEnd = ((getHeight() / 2) - vTranslateEnd.y) / scale;
                new AnimationBuilder(new PointF(sCenterXEnd, sCenterYEnd)).withEasing(EASE_OUT_QUAD)
                        .withPanLimited(false).start();
                return true;
            }
            return super.onFling(e1, e2, velocityX, velocityY);
        }

        @Override
        public boolean onSingleTapConfirmed(MotionEvent e) {
            performClick();
            return true;
        }

        @Override
        public boolean onDoubleTap(MotionEvent e) {
            if (zoomEnabled && readySent && vTranslate != null) {
                float doubleTapZoomScale = Math.min(maxScale,
                        SubsamplingScaleImageView.this.doubleTapZoomScale);
                boolean zoomIn = scale <= doubleTapZoomScale * 0.9;
                float targetScale = zoomIn ? doubleTapZoomScale
                        : Math.min(getWidth() / (float) sWidth(), getHeight() / (float) sHeight());
                PointF targetSCenter = viewToSourceCoord(new PointF(e.getX(), e.getY()));
                if (doubleTapZoomStyle == ZOOM_FOCUS_CENTER_IMMEDIATE) {
                    setScaleAndCenter(targetScale, targetSCenter);
                } else if (doubleTapZoomStyle == ZOOM_FOCUS_CENTER || !zoomIn) {
                    new AnimationBuilder(targetScale, targetSCenter).withInterruptible(false).start();
                } else if (doubleTapZoomStyle == ZOOM_FOCUS_FIXED) {
                    new AnimationBuilder(targetScale, targetSCenter, new PointF(e.getX(), e.getY()))
                            .withInterruptible(false).start();
                }

                // Hacky solution for #15 - after a double tap the GestureDetector gets in a state where the next
                // fling is ignored, so here we replace it with a new one.
                setGestureDetector(context);

                invalidate();
                return true;
            }
            return super.onDoubleTapEvent(e);
        }
    });
}

From source file:ayushi.view.customview.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   w w  w .  j  a  v a  2 s.  co  m*/
public void processTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    final int actionIndex = MotionEventCompat.getActionIndex(ev);

    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 = MotionEventCompat.getPointerId(ev, 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 MotionEventCompat.ACTION_POINTER_DOWN: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        final float x = MotionEventCompat.getX(ev, actionIndex);
        final float y = MotionEventCompat.getY(ev, 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 = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
            final float x = MotionEventCompat.getX(ev, index);
            final float y = MotionEventCompat.getY(ev, 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 = MotionEventCompat.getPointerCount(ev);
            for (int i = 0; i < pointerCount; i++) {
                final int pointerId = MotionEventCompat.getPointerId(ev, i);
                final float x = MotionEventCompat.getX(ev, i);
                final float y = MotionEventCompat.getY(ev, 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) mInitialMotionX[pointerId],
                        (int) mInitialMotionY[pointerId]);
                if (checkTouchSlop(toCapture, dx, dy) && tryCaptureViewForDrag(toCapture, pointerId)) {
                    break;
                }
            }
            saveLastMotion(ev);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP: {
        final int pointerId = MotionEventCompat.getPointerId(ev, 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 = MotionEventCompat.getPointerCount(ev);
            for (int i = 0; i < pointerCount; i++) {
                final int id = MotionEventCompat.getPointerId(ev, i);
                if (id == mActivePointerId) {
                    // This one's going away, skip.
                    continue;
                }

                final float x = MotionEventCompat.getX(ev, i);
                final float y = MotionEventCompat.getY(ev, 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:ca.co.rufus.androidboilerplate.ui.DebugDrawerLayout.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    mLeftDragger.processTouchEvent(ev);/*from  www  .  j  a  va 2s . c om*/
    mRightDragger.processTouchEvent(ev);

    final int action = ev.getAction();
    boolean wantTouchEvents = true;

    switch (action & MotionEventCompat.ACTION_MASK) {
    case MotionEvent.ACTION_DOWN: {
        final float x = ev.getX();
        final float y = ev.getY();
        mInitialMotionX = x;
        mInitialMotionY = y;
        mDisallowInterceptRequested = false;
        mChildrenCanceledTouch = false;
        break;
    }

    case MotionEvent.ACTION_UP: {
        final float x = ev.getX();
        final float y = ev.getY();
        boolean peekingOnly = true;
        final View touchedView = mLeftDragger.findTopChildUnder((int) x, (int) y);
        if (touchedView != null && isContentView(touchedView)) {
            final float dx = x - mInitialMotionX;
            final float dy = y - mInitialMotionY;
            final int slop = mLeftDragger.getTouchSlop();
            if (dx * dx + dy * dy < slop * slop) {
                // Taps close a dimmed open drawer but only if it isn't locked open.
                final View openDrawer = findOpenDrawer();
                if (openDrawer != null) {
                    peekingOnly = getDrawerLockMode(openDrawer) == LOCK_MODE_LOCKED_OPEN;
                }
            }
        }
        closeDrawers(peekingOnly);
        mDisallowInterceptRequested = false;
        break;
    }

    case MotionEvent.ACTION_CANCEL: {
        closeDrawers(true);
        mDisallowInterceptRequested = false;
        mChildrenCanceledTouch = false;
        break;
    }
    }

    return wantTouchEvents;
}

From source file:android.wuliqing.com.lendphonesystemapp.swipeBack.ViewDragHelper.java

/**
 * Check if this event as provided to the parent view's
 * onInterceptTouchEvent should cause the parent to intercept the touch
 * event stream./*from  ww  w.j a  v a2 s . c o  m*/
 *
 * @param ev MotionEvent provided to onInterceptTouchEvent
 * @return true if the parent view should return true from
 * onInterceptTouchEvent
 */
public boolean shouldInterceptTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    final int actionIndex = MotionEventCompat.getActionIndex(ev);

    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 = MotionEventCompat.getPointerId(ev, 0);
        saveInitialMotion(x, y, pointerId);

        final View toCapture = findTopChildUnder((int) x, (int) y);

        // Catch a settling view if possible.
        if (toCapture == mCapturedView && mDragState == STATE_SETTLING) {
            tryCaptureViewForDrag(toCapture, pointerId);
        }

        final int edgesTouched = mInitialEdgeTouched[pointerId];
        if ((edgesTouched & mTrackingEdges) != 0) {
            mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        final float x = MotionEventCompat.getX(ev, actionIndex);
        final float y = MotionEventCompat.getY(ev, actionIndex);

        saveInitialMotion(x, y, pointerId);

        // A ViewDragHelper can only manipulate one view at a time.
        if (mDragState == STATE_IDLE) {
            final int edgesTouched = mInitialEdgeTouched[pointerId];
            if ((edgesTouched & mTrackingEdges) != 0) {
                mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
            }
        } else if (mDragState == STATE_SETTLING) {
            // Catch a settling view if possible.
            final View toCapture = findTopChildUnder((int) x, (int) y);
            if (toCapture == mCapturedView) {
                tryCaptureViewForDrag(toCapture, pointerId);
            }
        }
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        // First to cross a touch slop over a draggable view wins. Also
        // report edge drags.
        final int pointerCount = MotionEventCompat.getPointerCount(ev);
        for (int i = 0; i < pointerCount; i++) {
            final int pointerId = MotionEventCompat.getPointerId(ev, i);
            final float x = MotionEventCompat.getX(ev, i);
            final float y = MotionEventCompat.getY(ev, 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 (toCapture != null && checkTouchSlop(toCapture, dx, dy)
                    && tryCaptureViewForDrag(toCapture, pointerId)) {
                break;
            }
        }
        saveLastMotion(ev);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        clearMotionHistory(pointerId);
        break;
    }

    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL: {
        cancel();
        break;
    }
    }

    return mDragState == STATE_DRAGGING;
}

From source file:cn.zmdx.kaka.locker.widget.ViewDragHelper.java

/**
 * Check if this event as provided to the parent view's
 * onInterceptTouchEvent should cause the parent to intercept the touch
 * event stream./*  w w w  . j a v a 2s  . c om*/
 * 
 * @param ev MotionEvent provided to onInterceptTouchEvent
 * @return true if the parent view should return true from
 *         onInterceptTouchEvent
 */
public boolean shouldInterceptTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    final int actionIndex = MotionEventCompat.getActionIndex(ev);

    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 = MotionEventCompat.getPointerId(ev, 0);
        saveInitialMotion(x, y, pointerId);

        final View toCapture = findTopChildUnder((int) x, (int) y);

        // Catch a settling view if possible.
        if (toCapture == mCapturedView && mDragState == STATE_SETTLING) {
            tryCaptureViewForDrag(toCapture, pointerId);
        }

        final int edgesTouched = mInitialEdgesTouched[pointerId];
        if ((edgesTouched & mTrackingEdges) != 0) {
            mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_DOWN: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        final float x = MotionEventCompat.getX(ev, actionIndex);
        final float y = MotionEventCompat.getY(ev, actionIndex);

        saveInitialMotion(x, y, pointerId);

        // A ViewDragHelper can only manipulate one view at a time.
        if (mDragState == STATE_IDLE) {
            final int edgesTouched = mInitialEdgesTouched[pointerId];
            if ((edgesTouched & mTrackingEdges) != 0) {
                mCallback.onEdgeTouched(edgesTouched & mTrackingEdges, pointerId);
            }
        } else if (mDragState == STATE_SETTLING) {
            // Catch a settling view if possible.
            final View toCapture = findTopChildUnder((int) x, (int) y);
            if (toCapture == mCapturedView) {
                tryCaptureViewForDrag(toCapture, pointerId);
            }
        }
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        // First to cross a touch slop over a draggable view wins. Also
        // report edge drags.
        final int pointerCount = MotionEventCompat.getPointerCount(ev);
        for (int i = 0; i < pointerCount && mInitialMotionX != null && mInitialMotionY != null; i++) {
            final int pointerId = MotionEventCompat.getPointerId(ev, i);
            final float x = MotionEventCompat.getX(ev, i);
            final float y = MotionEventCompat.getY(ev, 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) mInitialMotionX[pointerId],
                    (int) mInitialMotionY[pointerId]);
            if (toCapture != null && checkTouchSlop(toCapture, dx, dy)
                    && tryCaptureViewForDrag(toCapture, pointerId)) {
                break;
            }
        }
        saveLastMotion(ev);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP: {
        final int pointerId = MotionEventCompat.getPointerId(ev, actionIndex);
        clearMotionHistory(pointerId);
        break;
    }

    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL: {
        cancel();
        break;
    }
    }

    return mDragState == STATE_DRAGGING;
}

From source file:com.aidy.bottomdrawerlayout.DrawerLayout.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    Log.i(TAG, "onInterceptTouchEvent()");
    final int action = MotionEventCompat.getActionMasked(ev);

    // "|" used deliberately here; both methods should be invoked.
    final boolean interceptForDrag = mLeftDragger.shouldInterceptTouchEvent(ev)
            | mRightDragger.shouldInterceptTouchEvent(ev);

    boolean interceptForTap = false;

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        Log.i(TAG, "onInterceptTouchEvent() -- ACTION_DOWN");
        final float x = ev.getX();
        final float y = ev.getY();
        mInitialMotionX = x;/*from w  ww  . j a  v  a 2  s.c o m*/
        mInitialMotionY = y;
        if (mScrimOpacity > 0 && isContentView(mLeftDragger.findTopChildUnder((int) x, (int) y))) {
            interceptForTap = true;
        }
        mDisallowInterceptRequested = false;
        mChildrenCanceledTouch = false;
        break;
    }

    case MotionEvent.ACTION_MOVE: {
        Log.i(TAG, "onInterceptTouchEvent() -- ACTION_MOVE");
        // If we cross the touch slop, don't perform the delayed peek for an
        // edge touch.
        if (mLeftDragger.checkTouchSlop(ViewDragHelper.DIRECTION_ALL)) {
            Log.i(TAG, "onInterceptTouchEvent() -- ACTION_MOVE -- 2");
            mLeftCallback.removeCallbacks();
            mRightCallback.removeCallbacks();
        }
        break;
    }

    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP: {
        closeDrawers(true);
        mDisallowInterceptRequested = false;
        mChildrenCanceledTouch = false;
    }
    }
    boolean result = interceptForDrag || interceptForTap || hasPeekingDrawer() || mChildrenCanceledTouch;
    Log.i(TAG, "onInterceptTouchEvent() -- result = " + result);
    return result;
}