Example usage for android.view MotionEvent ACTION

Introduction

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

Prototype

int ACTION_CANCEL

To view the source code for android.view MotionEvent ACTION_CANCEL.

Click Source Link

Document

Constant for #getActionMasked : The current gesture has been aborted.

Usage

From source file:android.car.ui.provider.CarDrawerLayout.java

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

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

    boolean interceptForTap = false;

    switch (action) {
    case MotionEvent.ACTION_DOWN: {
        final float x = ev.getX();
        final float y = ev.getY();
        if (onScreen() > 0 && isContentView(mDragger.findTopChildUnder((int) x, (int) y))) {
            interceptForTap = true;//from w w w .ja v  a2 s.  co m
        }
        mChildrenCanceledTouch = false;
        break;
    }
    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP: {
        mChildrenCanceledTouch = false;
    }
    }

    return interceptForDrag || interceptForTap || mChildrenCanceledTouch;
}

From source file:bw.com.yunifangstore.view.OrderLazyViewPager.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {

    /*/*from   w ww.ja v a2s.co m*/
     * This method JUST determines whether we want to intercept the motion.
     * If we return true, onMotionEvent will be called and we do the actual
     * scrolling there.
     */

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    // Always take care of the touch gesture being complete.
    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        // Release the drag.
        if (DEBUG)
            Log.v(TAG, "Intercept done!");
        mIsBeingDragged = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        return false;
    }

    // Nothing more to do here if we have decided whether or not we
    // are dragging.
    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsBeingDragged) {
            if (DEBUG)
                Log.v(TAG, "Intercept returning true!");
            return true;
        }
        if (mIsUnableToDrag) {
            if (DEBUG)
                Log.v(TAG, "Intercept returning false!");
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE: {
        /*
         * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
         * whether the user has moved far enough from his original down touch.
         *//*
                    
            *//*
               * Locally do absolute value. mLastMotionY is set to the y value
               * of the down event.
               */
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            // If we don't have a valid id, the touch down wasn't on content.
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastMotionX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = Math.abs(y - mLastMotionY);
        final int scrollX = getScrollX();
        final boolean atEdge = (dx > 0 && scrollX == 0)
                || (dx < 0 && mAdapter != null && scrollX >= (mAdapter.getCount() - 1) * getWidth() - 1);
        if (DEBUG)
            Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff);

        if (canScroll(this, false, (int) dx, (int) x, (int) y)) {
            // Nested view has scrollable area under this point. Let it be handled there.
            mInitialMotionX = mLastMotionX = x;
            mLastMotionY = y;
            return false;
        }
        if (xDiff > mTouchSlop && xDiff > yDiff) {
            if (DEBUG)
                Log.v(TAG, "Starting drag!");
            mIsBeingDragged = true;
            setScrollState(SCROLL_STATE_DRAGGING);
            mLastMotionX = x;
            setScrollingCacheEnabled(true);
        } else {
            if (yDiff > mTouchSlop) {
                // The finger has moved enough in the vertical
                // direction to be counted as a drag...  abort
                // any attempt to drag horizontally, to work correctly
                // with children that have scrolling containers.
                if (DEBUG)
                    Log.v(TAG, "Starting unable to drag!");
                mIsUnableToDrag = true;
            }
        }
        break;
    }

    case MotionEvent.ACTION_DOWN: {
        /*
         * Remember location of down touch.
         * ACTION_DOWN always refers to pointer index 0.
         */
        mLastMotionX = mInitialMotionX = ev.getX();
        mLastMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);

        if (mScrollState == SCROLL_STATE_SETTLING) {
            // Let the user 'catch' the pager as it animates.
            mIsBeingDragged = true;
            mIsUnableToDrag = false;
            setScrollState(SCROLL_STATE_DRAGGING);
        } else {
            completeScroll();
            mIsBeingDragged = false;
            mIsUnableToDrag = false;
        }

        if (DEBUG)
            Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged
                    + "mIsUnableToDrag=" + mIsUnableToDrag);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    /** The only time we want to intercept motion events is if we are in the
    * drag mode.*/

    return mIsBeingDragged;

}

From source file:com.callba.phone.widget.refreshlayout.RefreshLayout.java

private boolean footerInterceptTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mLastMotionY = mInitialMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mIsFooterBeingDragged = false;/*w ww . j  a v  a  2  s . c o m*/
        mFooterCurrPercentage = 0;
        break;

    case MotionEvent.ACTION_MOVE:
        if (mActivePointerId == INVALID_POINTER) {
            Log.e(LOG_TAG, "Got ACTION_MOVE event but don't have an active pointer id.");
            return false;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (pointerIndex < 0) {
            Log.e(LOG_TAG, "Got ACTION_MOVE event but have an invalid active pointer id.");
            return false;
        }

        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = y - mInitialMotionY;
        if (yDiff < -mTouchSlop) {
            mLastMotionY = y;
            mIsFooterBeingDragged = true;
        }
        break;

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;

    case MotionEvent.ACTION_UP:
    case MotionEvent.ACTION_CANCEL:
        mIsFooterBeingDragged = false;
        mFooterCurrPercentage = 0;
        mActivePointerId = INVALID_POINTER;
        break;
    }

    return mIsFooterBeingDragged;
}

From source file:cn.d.fesa.wuf.ui.view.LazyViewPager.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    /*//from  w w  w .j  a v a  2  s . co m
     * This method JUST determines whether we want to intercept the motion.
     * If we return true, onMotionEvent will be called and we do the actual
     * scrolling there.
     */

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    // Always take care of the touch gesture being complete.
    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        // Release the drag.
        if (DEBUG)
            Log.v(TAG, "Intercept done!");
        mIsBeingDragged = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        return false;
    }

    // Nothing more to do here if we have decided whether or not we
    // are dragging.
    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsBeingDragged) {
            if (DEBUG)
                Log.v(TAG, "Intercept returning true!");
            return true;
        }
        if (mIsUnableToDrag) {
            if (DEBUG)
                Log.v(TAG, "Intercept returning false!");
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE: {
        /*
         * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check
         * whether the user has moved far enough from his original down touch.
         */

        /*
        * Locally do absolute value. mLastMotionY is set to the y value
        * of the down event.
        */
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            // If we don't have a valid id, the touch down wasn't on content.
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastMotionX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = Math.abs(y - mLastMotionY);
        final int scrollX = getScrollX();
        final boolean atEdge = (dx > 0 && scrollX == 0)
                || (dx < 0 && mAdapter != null && scrollX >= (mAdapter.getCount() - 1) * getWidth() - 1);
        if (DEBUG)
            Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff);

        if (canScroll(this, false, (int) dx, (int) x, (int) y)) {
            // Nested view has scrollable area under this point. Let it be handled there.
            mInitialMotionX = mLastMotionX = x;
            mLastMotionY = y;
            return false;
        }
        if (xDiff > mTouchSlop && xDiff > yDiff) {
            if (DEBUG)
                Log.v(TAG, "Starting drag!");
            mIsBeingDragged = true;
            setScrollState(SCROLL_STATE_DRAGGING);
            mLastMotionX = x;
            setScrollingCacheEnabled(true);
        } else {
            if (yDiff > mTouchSlop) {
                // The finger has moved enough in the vertical
                // direction to be counted as a drag...  abort
                // any attempt to drag horizontally, to work correctly
                // with children that have scrolling containers.
                if (DEBUG)
                    Log.v(TAG, "Starting unable to drag!");
                mIsUnableToDrag = true;
            }
        }
        break;
    }

    case MotionEvent.ACTION_DOWN: {
        /*
         * Remember location of down touch.
         * ACTION_DOWN always refers to pointer index 0.
         */
        mLastMotionX = mInitialMotionX = ev.getX();
        mLastMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);

        if (mScrollState == SCROLL_STATE_SETTLING) {
            // Let the user 'catch' the pager as it animates.
            mIsBeingDragged = true;
            mIsUnableToDrag = false;
            setScrollState(SCROLL_STATE_DRAGGING);
        } else {
            completeScroll();
            mIsBeingDragged = false;
            mIsUnableToDrag = false;
        }

        if (DEBUG)
            Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged
                    + "mIsUnableToDrag=" + mIsUnableToDrag);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    /*
    * The only time we want to intercept motion events is if we are in the
    * drag mode.
    */
    return mIsBeingDragged;
}

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;// www. jav  a 2 s.co 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;
}

From source file:com.cnpeng.cnpeng_mydemosfrom2016_12.a_12_GetLocalFiles_VP_FM.CustomNoPreLoadViewPager.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    /* // w  w w  .  j  ava  2  s  . c o  m
     * This method JUST determines whether we want to intercept the motion. 
     * If we return true, onMotionEvent will be called and we do the actual 
     * scrolling there. 
     */

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    // Always take care of the touch gesture being complete.  
    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        // Release the drag.  
        if (DEBUG) {
            Log.v(TAG, "Intercept done!");
        }
        mIsBeingDragged = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        return false;
    }

    // Nothing more to do here if we have decided whether or not we  
    // are dragging.  
    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsBeingDragged) {
            if (DEBUG) {
                Log.v(TAG, "Intercept returning true!");
            }
            return true;
        }
        if (mIsUnableToDrag) {
            if (DEBUG) {
                Log.v(TAG, "Intercept returning false!");
            }
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE: {
        /* 
         * mIsBeingDragged == false, otherwise the shortcut would have caught it. Check 
         * whether the user has moved far enough from his original down touch. 
         */

        /* 
        * Locally do absolute value. mLastMotionY is set to the y value 
        * of the down event. 
        */
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            // If we don't have a valid id, the touch down wasn't on content.  
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastMotionX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = Math.abs(y - mLastMotionY);
        final int scrollX = getScrollX();
        final boolean atEdge = (dx > 0 && scrollX == 0)
                || (dx < 0 && mAdapter != null && scrollX >= (mAdapter.getCount() - 1) * getWidth() - 1);
        if (DEBUG) {
            Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff);
        }

        if (canScroll(this, false, (int) dx, (int) x, (int) y)) {
            // Nested view has scrollable area under this point. Let it be handled there.  
            mInitialMotionX = mLastMotionX = x;
            mLastMotionY = y;
            return false;
        }
        if (xDiff > mTouchSlop && xDiff > yDiff) {
            if (DEBUG) {
                Log.v(TAG, "Starting drag!");
            }
            mIsBeingDragged = true;
            setScrollState(SCROLL_STATE_DRAGGING);
            mLastMotionX = x;
            setScrollingCacheEnabled(true);
        } else {
            if (yDiff > mTouchSlop) {
                // The finger has moved enough in the vertical  
                // direction to be counted as a drag...  abort  
                // any attempt to drag horizontally, to work correctly  
                // with children that have scrolling containers.  
                if (DEBUG) {
                    Log.v(TAG, "Starting unable to drag!");
                }
                mIsUnableToDrag = true;
            }
        }
        break;
    }

    case MotionEvent.ACTION_DOWN: {
        /* 
         * Remember location of down touch. 
         * ACTION_DOWN always refers to pointer index 0. 
         */
        mLastMotionX = mInitialMotionX = ev.getX();
        mLastMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);

        if (mScrollState == SCROLL_STATE_SETTLING) {
            // Let the user 'catch' the pager as it animates.  
            mIsBeingDragged = true;
            mIsUnableToDrag = false;
            setScrollState(SCROLL_STATE_DRAGGING);
        } else {
            completeScroll();
            mIsBeingDragged = false;
            mIsUnableToDrag = false;
        }

        if (DEBUG) {
            Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged
                    + "mIsUnableToDrag=" + mIsUnableToDrag);
        }
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    /* 
    * The only time we want to intercept motion events is if we are in the 
    * drag mode. 
    */
    return mIsBeingDragged;
}

From source file:com.b44t.ui.Components.EmojiView.java

public EmojiView(boolean needStickers, boolean needGif, final Context context) {
    super(context);

    showStickers = needStickers;//  w  ww  . j a v a2  s. co m
    showGifs = needGif;

    for (int i = 0; i < EmojiData.dataColored.length + 1; i++) {
        GridView gridView = new GridView(context);
        if (AndroidUtilities.isTablet()) {
            gridView.setColumnWidth(AndroidUtilities.dp(60));
        } else {
            gridView.setColumnWidth(AndroidUtilities.dp(45));
        }
        gridView.setNumColumns(-1);
        views.add(gridView);

        EmojiGridAdapter emojiGridAdapter = new EmojiGridAdapter(i - 1);
        gridView.setAdapter(emojiGridAdapter);
        AndroidUtilities.setListViewEdgeEffectColor(gridView, 0xfff5f6f7);
        adapters.add(emojiGridAdapter);
    }

    if (showStickers) {
        //StickersQuery.checkStickers();
        stickersGridView = new GridView(context) {
            @Override
            public boolean onInterceptTouchEvent(MotionEvent event) {
                boolean result = StickerPreviewViewer.getInstance().onInterceptTouchEvent(event,
                        stickersGridView, EmojiView.this.getMeasuredHeight());
                return super.onInterceptTouchEvent(event) || result;
            }

            @Override
            public void setVisibility(int visibility) {
                if (gifsGridView != null && gifsGridView.getVisibility() == VISIBLE) {
                    super.setVisibility(GONE);
                    return;
                }
                super.setVisibility(visibility);
            }
        };
        stickersGridView.setSelector(R.drawable.transparent);
        stickersGridView.setColumnWidth(AndroidUtilities.dp(72));
        stickersGridView.setNumColumns(-1);
        stickersGridView.setPadding(0, AndroidUtilities.dp(4), 0, 0);
        stickersGridView.setClipToPadding(false);
        views.add(stickersGridView);
        stickersGridAdapter = new StickersGridAdapter(context);
        stickersGridView.setAdapter(stickersGridAdapter);
        stickersGridView.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View v, MotionEvent event) {
                return StickerPreviewViewer.getInstance().onTouch(event, stickersGridView,
                        EmojiView.this.getMeasuredHeight(), stickersOnItemClickListener);
            }
        });
        stickersOnItemClickListener = new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long i) {
                if (!(view instanceof StickerEmojiCell)) {
                    return;
                }
                StickerPreviewViewer.getInstance().reset();
                StickerEmojiCell cell = (StickerEmojiCell) view;
                if (cell.isDisabled()) {
                    return;
                }
                cell.disable();
                TLRPC.Document document = cell.getSticker();
                addRecentSticker(document);
                if (listener != null) {
                    listener.onStickerSelected(document);
                }
            }
        };
        stickersGridView.setOnItemClickListener(stickersOnItemClickListener);
        AndroidUtilities.setListViewEdgeEffectColor(stickersGridView, 0xfff5f6f7);

        stickersWrap = new FrameLayout(context);
        stickersWrap.addView(stickersGridView);

        if (needGif) {
            gifsGridView = new RecyclerListView(context);
            gifsGridView.setTag(11);
            gifsGridView.setLayoutManager(flowLayoutManager = new ExtendedGridLayoutManager(context, 100) {

                private Size size = new Size();

                @Override
                protected Size getSizeForItem(int i) {
                    TLRPC.Document document = recentImages.get(i).document;
                    size.width = document.thumb != null && document.thumb.w != 0 ? document.thumb.w : 100;
                    size.height = document.thumb != null && document.thumb.h != 0 ? document.thumb.h : 100;
                    for (int b = 0; b < document.attributes.size(); b++) {
                        TLRPC.DocumentAttribute attribute = document.attributes.get(b);
                        if (attribute instanceof TLRPC.TL_documentAttributeImageSize
                                || attribute instanceof TLRPC.TL_documentAttributeVideo) {
                            size.width = attribute.w;
                            size.height = attribute.h;
                            break;
                        }
                    }
                    return size;
                }
            });
            flowLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
                @Override
                public int getSpanSize(int position) {
                    return flowLayoutManager.getSpanSizeForItem(position);
                }
            });
            gifsGridView.addItemDecoration(new RecyclerView.ItemDecoration() {
                @Override
                public void getItemOffsets(android.graphics.Rect outRect, View view, RecyclerView parent,
                        RecyclerView.State state) {
                    outRect.left = 0;
                    outRect.top = 0;
                    outRect.bottom = 0;
                    int position = parent.getChildAdapterPosition(view);
                    if (!flowLayoutManager.isFirstRow(position)) {
                        outRect.top = AndroidUtilities.dp(2);
                    }
                    outRect.right = flowLayoutManager.isLastInRow(position) ? 0 : AndroidUtilities.dp(2);
                }
            });
            gifsGridView.setOverScrollMode(RecyclerListView.OVER_SCROLL_NEVER);
            gifsGridView.setAdapter(gifsAdapter = new GifsAdapter(context));
            gifsGridView.setOnItemClickListener(new RecyclerListView.OnItemClickListener() {
                @Override
                public void onItemClick(View view, int position) {
                    if (position < 0 || position >= recentImages.size() || listener == null) {
                        return;
                    }
                    TLRPC.Document document = recentImages.get(position).document;
                    listener.onGifSelected(document);
                }
            });
            gifsGridView.setOnItemLongClickListener(new RecyclerListView.OnItemLongClickListener() {
                @Override
                public boolean onItemClick(View view, int position) {
                    if (position < 0 || position >= recentImages.size()) {
                        return false;
                    }
                    final MediaController.SearchImage searchImage = recentImages.get(position);
                    AlertDialog.Builder builder = new AlertDialog.Builder(view.getContext());
                    builder.setMessage(LocaleController.getString("DeleteGif", R.string.DeleteGif));
                    builder.setPositiveButton(LocaleController.getString("OK", R.string.OK).toUpperCase(),
                            new DialogInterface.OnClickListener() {
                                @Override
                                public void onClick(DialogInterface dialogInterface, int i) {
                                    recentImages.remove(searchImage);
                                    /*TLRPC.TL_messages_saveGif req = new TLRPC.TL_messages_saveGif();
                                    req.id = new TLRPC.TL_inputDocument();
                                    req.id.id = searchImage.document.id;
                                    req.id.access_hash = searchImage.document.access_hash;
                                    req.unsave = true;
                                    ConnectionsManager.getInstance().sendRequest(req, new RequestDelegate() {
                                    @Override
                                    public void run(TLObject response, TLRPC.TL_error error) {
                                            
                                    }
                                    });*/
                                    //MessagesStorage.getInstance().removeWebRecent(searchImage);
                                    if (gifsAdapter != null) {
                                        gifsAdapter.notifyDataSetChanged();
                                    }
                                    if (recentImages.isEmpty()) {
                                        updateStickerTabs();
                                    }
                                }
                            });
                    builder.setNegativeButton(LocaleController.getString("Cancel", R.string.Cancel), null);
                    builder.show().setCanceledOnTouchOutside(true);
                    return true;
                }
            });
            gifsGridView.setVisibility(GONE);
            stickersWrap.addView(gifsGridView);
        }

        stickersEmptyView = new TextView(context);
        stickersEmptyView.setText(LocaleController.getString("NoStickers", R.string.NoStickers));
        stickersEmptyView.setTextSize(TypedValue.COMPLEX_UNIT_DIP, 18);
        stickersEmptyView.setTextColor(0xff888888);
        stickersWrap.addView(stickersEmptyView,
                LayoutHelper.createFrame(LayoutHelper.WRAP_CONTENT, LayoutHelper.WRAP_CONTENT, Gravity.CENTER));
        stickersGridView.setEmptyView(stickersEmptyView);

        scrollSlidingTabStrip = new ScrollSlidingTabStrip(context) {

            boolean startedScroll;
            float lastX;
            float lastTranslateX;
            boolean first = true;

            @Override
            public boolean onInterceptTouchEvent(MotionEvent ev) {
                if (getParent() != null) {
                    getParent().requestDisallowInterceptTouchEvent(true);
                }
                return super.onInterceptTouchEvent(ev);
            }

            @Override
            public boolean onTouchEvent(MotionEvent ev) {
                if (first) {
                    first = false;
                    lastX = ev.getX();
                }
                float newTranslationX = scrollSlidingTabStrip.getTranslationX();
                if (scrollSlidingTabStrip.getScrollX() == 0 && newTranslationX == 0) {
                    if (!startedScroll && lastX - ev.getX() < 0) {
                        if (pager.beginFakeDrag()) {
                            startedScroll = true;
                            lastTranslateX = scrollSlidingTabStrip.getTranslationX();
                        }
                    } else if (startedScroll && lastX - ev.getX() > 0) {
                        if (pager.isFakeDragging()) {
                            pager.endFakeDrag();
                            startedScroll = false;
                        }
                    }
                }
                if (startedScroll) {
                    int dx = (int) (ev.getX() - lastX + newTranslationX - lastTranslateX);
                    try {
                        pager.fakeDragBy(dx);
                        lastTranslateX = newTranslationX;
                    } catch (Exception e) {
                        try {
                            pager.endFakeDrag();
                        } catch (Exception e2) {
                            //don't promt
                        }
                        startedScroll = false;
                        FileLog.e("messenger", e);
                    }
                }
                lastX = ev.getX();
                if (ev.getAction() == MotionEvent.ACTION_CANCEL || ev.getAction() == MotionEvent.ACTION_UP) {
                    first = true;
                    if (startedScroll) {
                        pager.endFakeDrag();
                        startedScroll = false;
                    }
                }
                return startedScroll || super.onTouchEvent(ev);
            }
        };
        scrollSlidingTabStrip.setUnderlineHeight(AndroidUtilities.dp(1));
        scrollSlidingTabStrip.setIndicatorColor(0xffe2e5e7);
        scrollSlidingTabStrip.setUnderlineColor(0xffe2e5e7);
        scrollSlidingTabStrip.setVisibility(INVISIBLE);
        addView(scrollSlidingTabStrip,
                LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, 48, Gravity.LEFT | Gravity.TOP));
        scrollSlidingTabStrip.setTranslationX(AndroidUtilities.displaySize.x);
        updateStickerTabs();
        scrollSlidingTabStrip.setDelegate(new ScrollSlidingTabStrip.ScrollSlidingTabStripDelegate() {
            @Override
            public void onPageSelected(int page) {
                if (gifsGridView != null) {
                    if (page == gifTabBum + 1) {
                        if (gifsGridView.getVisibility() != VISIBLE) {
                            listener.onGifTab(true);
                            showGifTab();
                        }
                    } else {
                        if (gifsGridView.getVisibility() == VISIBLE) {
                            listener.onGifTab(false);
                            gifsGridView.setVisibility(GONE);
                            stickersGridView.setVisibility(VISIBLE);
                            stickersEmptyView
                                    .setVisibility(stickersGridAdapter.getCount() != 0 ? GONE : VISIBLE);
                        }
                    }
                }
                if (page == 0) {
                    pager.setCurrentItem(0);
                    return;
                } else {
                    if (page == gifTabBum + 1) {
                        return;
                    } else {
                        if (page == recentTabBum + 1) {
                            views.get(6).setSelection(0);
                            return;
                        }
                    }
                }
                int index = page - 1 - stickersTabOffset;
                if (index == stickerSets.size()) {
                    if (listener != null) {
                        listener.onStickersSettingsClick();
                    }
                    return;
                }
                if (index >= stickerSets.size()) {
                    index = stickerSets.size() - 1;
                }
                views.get(6).setSelection(stickersGridAdapter.getPositionForPack(stickerSets.get(index)));
            }
        });

        stickersGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
            @Override
            public void onScrollStateChanged(AbsListView view, int scrollState) {

            }

            @Override
            public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount,
                    int totalItemCount) {
                checkStickersScroll(firstVisibleItem);
            }
        });
    }

    setBackgroundColor(0xfff5f6f7);

    pager = new ViewPager(context) {
        @Override
        public boolean onInterceptTouchEvent(MotionEvent ev) {
            if (getParent() != null) {
                getParent().requestDisallowInterceptTouchEvent(true);
            }
            return super.onInterceptTouchEvent(ev);
        }
    };
    pager.setAdapter(new EmojiPagesAdapter());

    pagerSlidingTabStripContainer = new LinearLayout(context) {
        @Override
        public boolean onInterceptTouchEvent(MotionEvent ev) {
            if (getParent() != null) {
                getParent().requestDisallowInterceptTouchEvent(true);
            }
            return super.onInterceptTouchEvent(ev);
        }
    };
    pagerSlidingTabStripContainer.setOrientation(LinearLayout.HORIZONTAL);
    pagerSlidingTabStripContainer.setBackgroundColor(0xfff5f6f7);
    addView(pagerSlidingTabStripContainer, LayoutHelper.createFrame(LayoutParams.MATCH_PARENT, 48));

    PagerSlidingTabStrip pagerSlidingTabStrip = new PagerSlidingTabStrip(context);
    pagerSlidingTabStrip.setViewPager(pager);
    pagerSlidingTabStrip.setShouldExpand(true);
    pagerSlidingTabStrip.setIndicatorHeight(AndroidUtilities.dp(2));
    pagerSlidingTabStrip.setUnderlineHeight(AndroidUtilities.dp(1));
    pagerSlidingTabStrip.setIndicatorColor(0xff2b96e2);
    pagerSlidingTabStrip.setUnderlineColor(0xffe2e5e7);
    pagerSlidingTabStripContainer.addView(pagerSlidingTabStrip, LayoutHelper.createLinear(0, 48, 1.0f));
    pagerSlidingTabStrip.setOnPageChangeListener(new ViewPager.OnPageChangeListener() {
        @Override
        public void onPageScrolled(int position, float positionOffset, int positionOffsetPixels) {
            EmojiView.this.onPageScrolled(position, getMeasuredWidth(), positionOffsetPixels);
        }

        @Override
        public void onPageSelected(int position) {

        }

        @Override
        public void onPageScrollStateChanged(int state) {

        }
    });

    FrameLayout frameLayout = new FrameLayout(context);
    pagerSlidingTabStripContainer.addView(frameLayout, LayoutHelper.createLinear(52, 48));

    backspaceButton = new ImageView(context) {
        @Override
        public boolean onTouchEvent(MotionEvent event) {
            if (event.getAction() == MotionEvent.ACTION_DOWN) {
                backspacePressed = true;
                backspaceOnce = false;
                postBackspaceRunnable(350);
            } else if (event.getAction() == MotionEvent.ACTION_CANCEL
                    || event.getAction() == MotionEvent.ACTION_UP) {
                backspacePressed = false;
                if (!backspaceOnce) {
                    if (listener != null && listener.onBackspace()) {
                        backspaceButton.performHapticFeedback(HapticFeedbackConstants.KEYBOARD_TAP);
                    }
                }
            }
            super.onTouchEvent(event);
            return true;
        }
    };
    backspaceButton.setImageResource(R.drawable.ic_smiles_backspace);
    backspaceButton.setBackgroundResource(R.drawable.ic_emoji_backspace);
    backspaceButton.setScaleType(ImageView.ScaleType.CENTER);
    frameLayout.addView(backspaceButton, LayoutHelper.createFrame(52, 48));

    View view = new View(context);
    view.setBackgroundColor(0xffe2e5e7);
    frameLayout.addView(view, LayoutHelper.createFrame(52, 1, Gravity.LEFT | Gravity.BOTTOM));

    recentsWrap = new FrameLayout(context);
    recentsWrap.addView(views.get(0));

    TextView textView = new TextView(context);
    textView.setText(LocaleController.getString("NoRecent", R.string.NoRecent));
    textView.setTextSize(18);
    textView.setTextColor(0xff888888);
    textView.setGravity(Gravity.CENTER);
    recentsWrap.addView(textView);
    views.get(0).setEmptyView(textView);

    addView(pager, LayoutHelper.createFrame(LayoutHelper.MATCH_PARENT, LayoutHelper.MATCH_PARENT,
            Gravity.LEFT | Gravity.TOP, 0, 48, 0, 0));

    emojiSize = AndroidUtilities.dp(AndroidUtilities.isTablet() ? 40 : 32);
    pickerView = new EmojiColorPickerView(context);
    pickerViewPopup = new EmojiPopupWindow(pickerView,
            popupWidth = AndroidUtilities.dp((AndroidUtilities.isTablet() ? 40 : 32) * 6 + 10 + 4 * 5),
            popupHeight = AndroidUtilities.dp(AndroidUtilities.isTablet() ? 64 : 56));
    pickerViewPopup.setOutsideTouchable(true);
    pickerViewPopup.setClippingEnabled(true);
    pickerViewPopup.setInputMethodMode(EmojiPopupWindow.INPUT_METHOD_NOT_NEEDED);
    pickerViewPopup.setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_STATE_UNSPECIFIED);
    pickerViewPopup.getContentView().setFocusableInTouchMode(true);
    pickerViewPopup.getContentView().setOnKeyListener(new OnKeyListener() {
        @Override
        public boolean onKey(View v, int keyCode, KeyEvent event) {
            if (keyCode == KeyEvent.KEYCODE_MENU && event.getRepeatCount() == 0
                    && event.getAction() == KeyEvent.ACTION_UP && pickerViewPopup != null
                    && pickerViewPopup.isShowing()) {
                pickerViewPopup.dismiss();
                return true;
            }
            return false;
        }
    });

    loadRecents();
}

From source file:bhav.swipeaction.SwipeAction.java

@Override
public boolean onTouchEvent(MotionEvent ev) {
    final int action = MotionEventCompat.getActionMasked(ev);
    int pointerIndex;
    if (mReturningToStart && action == MotionEvent.ACTION_DOWN) {
        mReturningToStart = false;//from w  w  w .  j  a va2s .  co  m
    }
    if (!isEnabled() || mReturningToStart || canChildScrollUp() || mNestedScrollInProgress) {
        // Fail fast if we're not in a state where a swipe is possible
        return false;
    }
    switch (action) {
    case MotionEvent.ACTION_DOWN:
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);
        mIsBeingDragged = false;
        break;
    case MotionEvent.ACTION_MOVE: {
        pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (pointerIndex < 0) {
            Log.e(TAG, "Got ACTION_MOVE event but have an invalid active pointer id.");
            return false;
        }
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float overscrollTop = (y - mInitialMotionY) * DRAG_RATE;
        if (mIsBeingDragged) {
            if (overscrollTop > 0) {
                moveSpinner(overscrollTop);
            } else {
                return false;
            }
        }
        break;
    }
    case MotionEventCompat.ACTION_POINTER_DOWN: {
        pointerIndex = MotionEventCompat.getActionIndex(ev);
        if (pointerIndex < 0) {
            Log.e(TAG, "Got ACTION_POINTER_DOWN event but have an invalid action index.");
            return false;
        }
        mActivePointerId = MotionEventCompat.getPointerId(ev, pointerIndex);
        break;
    }
    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    case MotionEvent.ACTION_UP: {
        pointerIndex = MotionEventCompat.findPointerIndex(ev, mActivePointerId);
        if (pointerIndex < 0) {
            Log.e(TAG, "Got ACTION_UP event but don't have an active pointer id.");
            return false;
        }
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float overscrollTop = (y - mInitialMotionY) * DRAG_RATE;
        mIsBeingDragged = false;
        finishSpinner(overscrollTop);
        mActivePointerId = INVALID_POINTER;
        return false;
    }
    case MotionEvent.ACTION_CANCEL:
        return false;
    }
    return true;
}

From source file:com.bm.wjsj.View.LazyViewPager.java

@Override
public boolean onInterceptTouchEvent(MotionEvent ev) {
    /*//  w w w. ja va  2  s.  co m
     * This method JUST determines whether we want to intercept the motion.
     * If we return true, onMotionEvent will be called and we do the actual
     * scrolling there.
     */

    final int action = ev.getAction() & MotionEventCompat.ACTION_MASK;

    // Always take care of the touch gesture being complete.
    if (action == MotionEvent.ACTION_CANCEL || action == MotionEvent.ACTION_UP) {
        // Release the drag.
        if (DEBUG)
            Log.v(TAG, "Intercept done!");
        mIsBeingDragged = false;
        mIsUnableToDrag = false;
        mActivePointerId = INVALID_POINTER;
        return false;
    }

    // Nothing more to do here if we have decided whether or not we
    // are dragging.
    if (action != MotionEvent.ACTION_DOWN) {
        if (mIsBeingDragged) {
            if (DEBUG)
                Log.v(TAG, "Intercept returning true!");
            return true;
        }
        if (mIsUnableToDrag) {
            if (DEBUG)
                Log.v(TAG, "Intercept returning false!");
            return false;
        }
    }

    switch (action) {
    case MotionEvent.ACTION_MOVE: {
        /*
         * mIsBeingDragged == false, otherwise the shortcut would have
         * caught it. Check whether the user has moved far enough from his
         * original down touch.
         */

        /*
         * Locally do absolute value. mLastMotionY is set to the y value of
         * the down event.
         */
        final int activePointerId = mActivePointerId;
        if (activePointerId == INVALID_POINTER) {
            // If we don't have a valid id, the touch down wasn't on
            // content.
            break;
        }

        final int pointerIndex = MotionEventCompat.findPointerIndex(ev, activePointerId);
        final float x = MotionEventCompat.getX(ev, pointerIndex);
        final float dx = x - mLastMotionX;
        final float xDiff = Math.abs(dx);
        final float y = MotionEventCompat.getY(ev, pointerIndex);
        final float yDiff = Math.abs(y - mLastMotionY);
        final int scrollX = getScrollX();
        final boolean atEdge = (dx > 0 && scrollX == 0)
                || (dx < 0 && mAdapter != null && scrollX >= (mAdapter.getCount() - 1) * getWidth() - 1);
        if (DEBUG)
            Log.v(TAG, "Moved x to " + x + "," + y + " diff=" + xDiff + "," + yDiff);

        if (canScroll(this, false, (int) dx, (int) x, (int) y)) {
            // Nested view has scrollable area under this point. Let it be
            // handled there.
            mInitialMotionX = mLastMotionX = x;
            mLastMotionY = y;
            return false;
        }
        if (xDiff > mTouchSlop && xDiff > yDiff) {
            if (DEBUG)
                Log.v(TAG, "Starting drag!");
            mIsBeingDragged = true;
            setScrollState(SCROLL_STATE_DRAGGING);
            mLastMotionX = x;
            setScrollingCacheEnabled(true);
        } else {
            if (yDiff > mTouchSlop) {
                // The finger has moved enough in the vertical
                // direction to be counted as a drag... abort
                // any attempt to drag horizontally, to work correctly
                // with children that have scrolling containers.
                if (DEBUG)
                    Log.v(TAG, "Starting unable to drag!");
                mIsUnableToDrag = true;
            }
        }
        break;
    }

    case MotionEvent.ACTION_DOWN: {
        /*
         * Remember location of down touch. ACTION_DOWN always refers to
         * pointer index 0.
         */
        mLastMotionX = mInitialMotionX = ev.getX();
        mLastMotionY = ev.getY();
        mActivePointerId = MotionEventCompat.getPointerId(ev, 0);

        if (mScrollState == SCROLL_STATE_SETTLING) {
            // Let the user 'catch' the pager as it animates.
            mIsBeingDragged = true;
            mIsUnableToDrag = false;
            setScrollState(SCROLL_STATE_DRAGGING);
        } else {
            completeScroll();
            mIsBeingDragged = false;
            mIsUnableToDrag = false;
        }

        if (DEBUG)
            Log.v(TAG, "Down at " + mLastMotionX + "," + mLastMotionY + " mIsBeingDragged=" + mIsBeingDragged
                    + "mIsUnableToDrag=" + mIsUnableToDrag);
        break;
    }

    case MotionEventCompat.ACTION_POINTER_UP:
        onSecondaryPointerUp(ev);
        break;
    }

    /*
     * The only time we want to intercept motion events is if we are in the
     * drag mode.
     */
    return mIsBeingDragged;
}

From source file:com.android.launcher3.folder.FolderIcon.java

@Override
public boolean onTouchEvent(MotionEvent event) {
    // Call the superclass onTouchEvent first, because sometimes it changes the state to
    // isPressed() on an ACTION_UP
    boolean result = super.onTouchEvent(event);

    // Check for a stylus button press, if it occurs cancel any long press checks.
    if (mStylusEventHelper.onMotionEvent(event)) {
        mLongPressHelper.cancelLongPress();
        return true;
    }//  w ww.  j a  v a  2s  .  c  o m

    switch (event.getAction()) {
    case MotionEvent.ACTION_DOWN:
        mLongPressHelper.postCheckForLongPress();
        break;
    case MotionEvent.ACTION_CANCEL:
    case MotionEvent.ACTION_UP:
        mLongPressHelper.cancelLongPress();
        break;
    case MotionEvent.ACTION_MOVE:
        if (!Utilities.pointInView(this, event.getX(), event.getY(), mSlop)) {
            mLongPressHelper.cancelLongPress();
        }
        break;
    }
    return result;
}

Example usage for android.view MotionEvent ACTION_CANCEL

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Prototype

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Usage