android.support.v4.widget.AutoScrollHelper Java Examples

The following examples show how to use android.support.v4.widget.AutoScrollHelper. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.

Example #1

Source File: ListViewActivity.java From Rocko-Android-Demos with Apache License 2.0

6 votes

private void init() {
        listView = (ListView) findViewById(R.id.list_view);

        String[] strs = getData(100);
        List<Map<String, Object>> list = new ArrayList<>();
        for (String str : strs) {
            Map<String, Object> map = new HashMap<>();
            map.put("text", str);
            list.add(map);
        }
        SimpleAdapter adapter = new SimpleAdapter(this, list, R.layout.item_simple, new String[]{"text"}, new int[]{R.id.text_view});
        listView.setAdapter(adapter);

        AutoScrollHelper autoScrollHelper = new ListViewAutoScrollHelper(listView);
        listView.setOnTouchListener(autoScrollHelper);
        autoScrollHelper.setEnabled(true);
//        autoScrollHelper.setActivationDelay(3000);
//        autoScrollHelper.setRampDownDuration(3000);
        Toast.makeText(this, "长按上或下边缘", Toast.LENGTH_SHORT).show();
    }

Example #2

Source File: ListBuddiesLayout.java From UltimateAndroid with Apache License 2.0

6 votes

private void setScrollHelpers() {
    mScrollHelper = new ListBuddiesAutoScrollHelper(mListViewLeft) {
        @Override
        public void scrollTargetBy(int deltaX, int deltaY) {
            mListViewLeft.smoothScrollBy(mSpeedLeft, 0);
            mListViewRight.smoothScrollBy(mSpeedRight, 0);
        }

        @Override
        public boolean canTargetScrollHorizontally(int i) {
            return false;
        }

        @Override
        public boolean canTargetScrollVertically(int i) {
            return true;
        }
    };

    mScrollHelper.setEnabled(isEnable());
    mScrollHelper.setEdgeType(AutoScrollHelper.EDGE_TYPE_OUTSIDE);
}

Example #3

Source File: ListBuddiesLayout.java From UltimateAndroid with Apache License 2.0

6 votes

private void setScrollHelpers() {
    mScrollHelper = new ListBuddiesAutoScrollHelper(mListViewLeft) {
        @Override
        public void scrollTargetBy(int deltaX, int deltaY) {
            mListViewLeft.smoothScrollBy(mSpeedLeft, 0);
            mListViewRight.smoothScrollBy(mSpeedRight, 0);
        }

        @Override
        public boolean canTargetScrollHorizontally(int i) {
            return false;
        }

        @Override
        public boolean canTargetScrollVertically(int i) {
            return true;
        }
    };

    mScrollHelper.setEnabled(isEnable());
    mScrollHelper.setEdgeType(AutoScrollHelper.EDGE_TYPE_OUTSIDE);
}

Example #4

Source File: ListBuddiesLayout.java From ListBuddies with Apache License 2.0

6 votes

private void setScrollHelpers() {
    mScrollHelper = new ListBuddiesAutoScrollHelper(mListViewLeft) {
        @Override
        public void scrollTargetBy(int deltaX, int deltaY) {
            mListViewLeft.smoothScrollBy(mSpeedLeft, 0);
            mListViewRight.smoothScrollBy(mSpeedRight, 0);
        }

        @Override
        public boolean canTargetScrollHorizontally(int i) {
            return false;
        }

        @Override
        public boolean canTargetScrollVertically(int i) {
            return true;
        }
    };

    mScrollHelper.setEnabled(isEnable());
    mScrollHelper.setEdgeType(AutoScrollHelper.EDGE_TYPE_OUTSIDE);
}

Example #5

Source File: RecyclerViewActivity.java From Rocko-Android-Demos with Apache License 2.0

5 votes

private void init() {
    recyclerView = (RecyclerView) findViewById(R.id.recyler_view);

    linearLayoutManager = new LinearLayoutManager(this);
    linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
    staggeredGridLayoutManager = new StaggeredGridLayoutManager(3, StaggeredGridLayoutManager.VERTICAL);

    recyclerView.setLayoutManager(linearLayoutManager);
    recyclerView.setAdapter(new SimpleRecylerViewAdapter(this, getData(100)));

    AutoScrollHelper autoScrollHelper = new RecyclerViewAutoScrollHelper(recyclerView);
    autoScrollHelper.setEnabled(true);
    recyclerView.setOnTouchListener(autoScrollHelper);
}

Example #6

Source File: ViewPager.java From letv with Apache License 2.0

4 votes

private void calculatePageOffsets(ItemInfo curItem, int curIndex, ItemInfo oldCurInfo) {
    float offset;
    int pos;
    ItemInfo ii;
    int N = this.mAdapter.getCount();
    int width = getClientWidth();
    float marginOffset = width > 0 ? ((float) this.mPageMargin) / ((float) width) : 0.0f;
    if (oldCurInfo != null) {
        int oldCurPosition = oldCurInfo.position;
        int itemIndex;
        if (oldCurPosition < curItem.position) {
            itemIndex = 0;
            offset = (oldCurInfo.offset + oldCurInfo.widthFactor) + marginOffset;
            pos = oldCurPosition + 1;
            while (pos <= curItem.position && itemIndex < this.mItems.size()) {
                ii = (ItemInfo) this.mItems.get(itemIndex);
                while (pos > ii.position && itemIndex < this.mItems.size() - 1) {
                    itemIndex++;
                    ii = (ItemInfo) this.mItems.get(itemIndex);
                }
                while (pos < ii.position) {
                    offset += this.mAdapter.getPageWidth(pos) + marginOffset;
                    pos++;
                }
                ii.offset = offset;
                offset += ii.widthFactor + marginOffset;
                pos++;
            }
        } else if (oldCurPosition > curItem.position) {
            itemIndex = this.mItems.size() - 1;
            offset = oldCurInfo.offset;
            pos = oldCurPosition - 1;
            while (pos >= curItem.position && itemIndex >= 0) {
                ii = (ItemInfo) this.mItems.get(itemIndex);
                while (pos < ii.position && itemIndex > 0) {
                    itemIndex--;
                    ii = (ItemInfo) this.mItems.get(itemIndex);
                }
                while (pos > ii.position) {
                    offset -= this.mAdapter.getPageWidth(pos) + marginOffset;
                    pos--;
                }
                offset -= ii.widthFactor + marginOffset;
                ii.offset = offset;
                pos--;
            }
        }
    }
    int itemCount = this.mItems.size();
    offset = curItem.offset;
    pos = curItem.position - 1;
    this.mFirstOffset = curItem.position == 0 ? curItem.offset : -3.4028235E38f;
    this.mLastOffset = curItem.position == N + -1 ? (curItem.offset + curItem.widthFactor) - 1.0f : AutoScrollHelper.NO_MAX;
    int i = curIndex - 1;
    while (i >= 0) {
        ii = (ItemInfo) this.mItems.get(i);
        while (pos > ii.position) {
            offset -= this.mAdapter.getPageWidth(pos) + marginOffset;
            pos--;
        }
        offset -= ii.widthFactor + marginOffset;
        ii.offset = offset;
        if (ii.position == 0) {
            this.mFirstOffset = offset;
        }
        i--;
        pos--;
    }
    offset = (curItem.offset + curItem.widthFactor) + marginOffset;
    pos = curItem.position + 1;
    i = curIndex + 1;
    while (i < itemCount) {
        ii = (ItemInfo) this.mItems.get(i);
        while (pos < ii.position) {
            offset += this.mAdapter.getPageWidth(pos) + marginOffset;
            pos++;
        }
        if (ii.position == N - 1) {
            this.mLastOffset = (ii.widthFactor + offset) - 1.0f;
        }
        ii.offset = offset;
        offset += ii.widthFactor + marginOffset;
        i++;
        pos++;
    }
    this.mNeedCalculatePageOffsets = false;
}

Example #7

Source File: ScrollViewActivity.java From Rocko-Android-Demos with Apache License 2.0

4 votes

private void init() {
    scrollView = (ScrollView) findViewById(R.id.scroll_view);
    AutoScrollHelper autoScrollHelper = new ScrollViewAutoScrollHelper(scrollView);
    autoScrollHelper.setEnabled(true);
    scrollView.setOnTouchListener(autoScrollHelper);
}