Java Code Examples for android.support.v7.widget.RecyclerView#setVerticalScrollBarEnabled()

private RecyclerView getListView(final List<String> quickReplies, final OnQuickRepliesClickListener listener) {
    RecyclerView recyclerView = new RecyclerView(context);
    recyclerView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT));
    recyclerView.setLayoutManager(new LinearLayoutManager(context));
    recyclerView.setVerticalScrollBarEnabled(false);
    recyclerView.setHorizontalScrollBarEnabled(false);
    recyclerView.setBackgroundColor(Color.TRANSPARENT);

    QuickReplyAdapter quickReplyAdapter = new QuickReplyAdapter(R.layout.atom_ui_quickreply_item, quickReplies);
    quickReplyAdapter.setOnItemChildClickListener(new BaseQuickAdapter.OnItemChildClickListener() {
        @Override
        public void onItemChildClick(BaseQuickAdapter adapter, View view, int position) {
            listener.onQuickReplyClick(quickReplies.get(position));
        }

    });
    recyclerView.setAdapter(quickReplyAdapter);
    return recyclerView;
}
 

/**
     * 通过反射替换默认的Item动画 (解决在某些机型上的crash问题)
     */
    private void initItemAnimator() {
        try {
            Field field = RecyclerView.LayoutManager.class.getDeclaredField("mRecyclerView");
            field.setAccessible(true);
            RecyclerView recyclerView = (RecyclerView) field.get(this);
            if (recyclerView != null) {
                recyclerView.setOverScrollMode(View.OVER_SCROLL_NEVER);
                recyclerView.setHorizontalScrollBarEnabled(false);
                recyclerView.setVerticalScrollBarEnabled(false);
                if (recyclerView.getItemAnimator() != mItemAnimator) {
                    recyclerView.setItemAnimator(mItemAnimator);
                }
            }
//            recyclerView.setItemAnimator(null);
            mRecycler.setViewCacheSize(mCacheCount);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
 

private void initView() {
    ActionBar supportActionBar = getSupportActionBar();
    if (supportActionBar != null) {
        supportActionBar.hide();
    }
    searchbarview = (SearchBarView) findViewById(R.id.searchbarview);
    searchbarview.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            // enter search activity
            Toast.makeText(MainActivity.this, "enter search activity", Toast.LENGTH_SHORT).show();
        }
    });
    AppBarLayout appBarLayout = (AppBarLayout) findViewById(R.id.appbarlayout);
    appBarLayout.addOnOffsetChangedListener(this);
    toolbar = (Toolbar) findViewById(R.id.toolbar);
    RecyclerView mRecyclerView = (RecyclerView) findViewById(R.id.recyclerview);
    mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
    mRecyclerView.setVerticalScrollBarEnabled(true);
    mRecyclerView.setNestedScrollingEnabled(false);
    mRecyclerView.setAdapter(new MyAdapter());
}
 

@Override
    public void onNestedPreScroll(CoordinatorLayout coordinatorLayout, RecyclerView child,
                                  View target, int dx, int dy, int[] consumed) {
//        Log.e("ldf", "onNestedPreScroll");
        super.onNestedPreScroll(coordinatorLayout, child, target, dx, dy, consumed);
        child.setVerticalScrollBarEnabled(true);

        MonthPager monthPager = (MonthPager) coordinatorLayout.getChildAt(0);
        if (monthPager.getPageScrollState() != ViewPager.SCROLL_STATE_IDLE) {
            consumed[1] = dy;
            Log.w("ldf", "onNestedPreScroll: MonthPager dragging");
            Toast.makeText(context, "loading month data", Toast.LENGTH_SHORT).show();
            return;
        }

        // 上滑，正在隐藏顶部的日历
        hidingTop = dy > 0 && child.getTop() <= initOffset
                && child.getTop() > getMonthPager(coordinatorLayout).getCellHeight();
        // 下滑，正在展示顶部的日历
        showingTop = dy < 0 && !ViewCompat.canScrollVertically(target, -1);

        if (hidingTop || showingTop) {
            consumed[1] = Utils.scroll(child, dy,
                    getMonthPager(coordinatorLayout).getCellHeight(),
                    getMonthPager(coordinatorLayout).getViewHeight());
            saveTop(child.getTop());
        }
    }
 

/**
 * 初始化数据列表视图
 * @param context
 */
private void initRecyclerView(Context context) {

    mLinearLayoutManager = new LinearLayoutManager(context);
    mRecyclerView = new RecyclerView(context);
    mRecyclerView.setVerticalScrollBarEnabled(false);
    mRecyclerView.setOverScrollMode(View.OVER_SCROLL_NEVER);
    mRecyclerView.setLayoutManager(mLinearLayoutManager);
    mRecyclerView.addOnScrollListener(new RecyclerViewScrollListener());

    LayoutParams layoutParams = new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT);
    addView(mRecyclerView, layoutParams);
}
 

private void init(Context context, AttributeSet attrs) {
    this.mContext = context;
    this.mExecutorService = Executors.newSingleThreadExecutor();
    PADDING_RIGHT_OVERLAY = (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_DIP, 80, getResources().getDisplayMetrics());

    if (attrs != null) {
        TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.IndexableRecyclerView);
        mBarTextColor = a.getColor(R.styleable.IndexableRecyclerView_indexBar_textColor, ContextCompat.getColor(context, R.color.default_indexBar_textColor));
        mBarTextSize = a.getDimension(R.styleable.IndexableRecyclerView_indexBar_textSize, getResources().getDimension(R.dimen.default_indexBar_textSize));
        mBarFocusTextColor = a.getColor(R.styleable.IndexableRecyclerView_indexBar_selectedTextColor, ContextCompat.getColor(context, R.color.default_indexBar_selectedTextColor));
        mBarTextSpace = a.getDimension(R.styleable.IndexableRecyclerView_indexBar_textSpace, getResources().getDimension(R.dimen.default_indexBar_textSpace));
        mBarBg = a.getDrawable(R.styleable.IndexableRecyclerView_indexBar_background);
        mBarWidth = a.getDimension(R.styleable.IndexableRecyclerView_indexBar_layout_width, getResources().getDimension(R.dimen.default_indexBar_layout_width));
        a.recycle();
    }

    if (mContext instanceof Activity) {
        ((Activity) mContext).getWindow().setSoftInputMode(WindowManager.LayoutParams.SOFT_INPUT_ADJUST_PAN);
    }

    mRecy = new RecyclerView(context);
    mRecy.setVerticalScrollBarEnabled(false);
    mRecy.setOverScrollMode(View.OVER_SCROLL_NEVER);
    addView(mRecy, new LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT));

    mIndexBar = new IndexBar(context);
    mIndexBar.init(mBarBg, mBarTextColor, mBarFocusTextColor, mBarTextSize, mBarTextSpace);
    LayoutParams params = new LayoutParams((int) mBarWidth, LayoutParams.WRAP_CONTENT);
    params.gravity = Gravity.END | Gravity.CENTER_VERTICAL;
    addView(mIndexBar, params);

    mRealAdapter = new RealAdapter();
    mRecy.setHasFixedSize(true);
    mRecy.setAdapter(mRealAdapter);

    initListener();
}
 

protected void configureRecyclerView(RecyclerView recyclerView) {
    recyclerView.setHasFixedSize(true);
    LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getActivity());
    linearLayoutManager.setRecycleChildrenOnDetach(false);
    linearLayoutManager.setSmoothScrollbarEnabled(false);
    recyclerView.setLayoutManager(linearLayoutManager);
    recyclerView.setHorizontalScrollBarEnabled(false);
    recyclerView.setVerticalScrollBarEnabled(true);
}