androidx.recyclerview.widget.RecyclerView#setBackgroundColor ( )源码实例Demo

@Nullable
@Override
public View onCreateView(
        @NonNull LayoutInflater inflater,
        @Nullable ViewGroup container,
        @Nullable Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_nested_page, container, false);
    RecyclerView recyclerView = view.findViewById(R.id.recyclerView_nested_page);
    recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
    recyclerView.setHasFixedSize(true);
    recyclerView.setBackgroundColor(mColor);
    recyclerView.setTranslationX(-getResources().getDisplayMetrics().widthPixels / 2f);
    mAdapter = new RecyclerViewAdapter(getActivity(), inflater);
    recyclerView.setAdapter(mAdapter);
    mAdapter.updateData(mList);
    return view;
}
 

@Override
@CallSuper
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view;
    if (orientation() == OrientationHelper.VERTICAL) {
        view = inflater.inflate(R.layout.vertical_fragment_brick, container, false);
    } else {
        view = inflater.inflate(R.layout.horizontal_fragment_brick, container, false);
    }

    RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.recycler_view);
    recyclerView.setBackgroundColor(recyclerViewBackground);
    ((DefaultItemAnimator) recyclerView.getItemAnimator()).setSupportsChangeAnimations(false);
    dataManager.setRecyclerView(getContext(), recyclerView, orientation(), reverse(), view);
    return view;
}
 

@Override
public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
    super.onViewCreated(view, savedInstanceState);
    mRecyclerView = (RecyclerView) view;
    mRecyclerView.setBackgroundColor(0xFF323232);
    mAdapter = new AdvancedListAdapter();
    mRecyclerView.setAdapter(mAdapter);
    int divider = getResources().getDimensionPixelSize(R.dimen.divider);
    mRecyclerView.setPadding(divider/2,divider/2,divider/2,divider/2);
    RecyclerView.LayoutManager layoutManager = new GridLayoutManager(getActivity(),2);

    mRecyclerView.setLayoutManager(layoutManager);
    mRecyclerView.addItemDecoration(new SpaceItemDecoration(divider));
    initCells();
}
 

/**
 * 动态添加多图裁剪底部预览图片列表
 */
private void addPhotoRecyclerView() {
    mRecyclerView = new RecyclerView(this);
    mRecyclerView.setId(R.id.id_recycler);
    mRecyclerView.setBackgroundColor(ContextCompat.getColor(this, R.color.ucrop_color_widget_background));
    RelativeLayout.LayoutParams lp =
            new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT, dip2px(80));
    mRecyclerView.setLayoutParams(lp);
    LinearLayoutManager mLayoutManager = new LinearLayoutManager(this);
    mLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
    mRecyclerView.setLayoutManager(mLayoutManager);
    resetCutDataStatus();
    list.get(cutIndex).setCut(true);
    adapter = new PicturePhotoGalleryAdapter(this, list);
    mRecyclerView.setAdapter(adapter);
    adapter.setOnItemClickListener((position, view) -> {
        if (cutIndex == position) {
            return;
        }
        cutIndex = position;
        resetCutData();
    });

    uCropMultiplePhotoBox.addView(mRecyclerView);
    changeLayoutParams();
    FrameLayout uCropFrame = findViewById(R.id.ucrop_frame);
    ((RelativeLayout.LayoutParams) uCropFrame.getLayoutParams())
            .addRule(RelativeLayout.ABOVE, R.id.id_recycler);
}
 

private void createContentViewIfNeeded() {
    if (mContentView != null) return;
    RecyclerView recyclerView = new RecyclerView(mContext);
    LinearLayoutManager layoutManager = new LinearLayoutManager(mContext,
            LinearLayoutManager.HORIZONTAL, false);
    recyclerView.setLayoutManager(layoutManager);
    MenuItemAdapter adapter = new MenuItemAdapter(mContext);
    recyclerView.setAdapter(adapter);
    recyclerView.setBackgroundColor(Color.WHITE);
    mContentView = recyclerView;
}
 

public MenuBottomSheetDialog(@NonNull Context context) {
    super(context);

    RecyclerView content = new RecyclerView(context);
    content.setLayoutManager(new LinearLayoutManager(context));
    content.setAdapter(new ItemAdapter());
    int verticalPadding = content.getResources().getDimensionPixelSize(R.dimen.bottom_sheet_menu_vertical_margin);
    content.setPadding(0, verticalPadding, 0, verticalPadding);
    setContentView(content);

    content.setBackgroundColor(StyledAttributesHelper.getColor(context, R.attr.colorBackgroundFloating, 0));
}
 

@Override
@CallSuper
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view;
    if (orientation() == OrientationHelper.VERTICAL) {
        view = inflater.inflate(R.layout.vertical_fragment_brick, container, false);
    } else {
        view = inflater.inflate(R.layout.horizontal_fragment_brick, container, false);
    }

    RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.recycler_view);
    recyclerView.setBackgroundColor(recyclerViewBackground);
    dataManager.setRecyclerView(getContext(), recyclerView, orientation(), reverse(), view);
    return view;
}
 

@Override
public RecyclerView onCreateRecyclerView(LayoutInflater inflater, ViewGroup parent,
                                         Bundle savedInstanceState) {
    RecyclerView view = super.onCreateRecyclerView(inflater, parent, savedInstanceState);
    view.setBackgroundColor(ContextCompat.getColor(getContext(), R.color.background));

    int padding = (int) getResources().getDimension(R.dimen.global_padding);
    view.setPadding(padding, 0, padding, 0);

    view.addItemDecoration(new BackgroundDecoration(android.R.id.title));
    view.addItemDecoration(new DividerDecoration(getContext(), android.R.id.title));

    return view;
}
 

@Override
protected View getLayoutView() {
    View wrapper;
    editText = new EditText(getContext());
    int padding = ViewKnife.dip2px(16);
    editText.setPadding(padding, padding, padding, padding);
    editText.setBackgroundColor(Color.WHITE);
    editText.setGravity(Gravity.START | Gravity.TOP);
    editText.setTextColor(ViewKnife.getColor(R.color.pd_label_dark));
    editText.setLineSpacing(0, 1.2f);

    String[] options = getArguments().getStringArray(PARAM3);
    if (options != null && options.length > 0) {
        LinearLayout layout = new LinearLayout(getContext());
        layout.setOrientation(LinearLayout.VERTICAL);
        wrapper = layout;
        RecyclerView recyclerView = new RecyclerView(getContext());
        recyclerView.setBackgroundColor(Color.WHITE);
        LinearLayoutManager manager = new LinearLayoutManager(getContext());
        manager.setOrientation(LinearLayoutManager.HORIZONTAL);
        recyclerView.setLayoutManager(manager);
        UniversalAdapter adapter = new UniversalAdapter();
        recyclerView.setAdapter(adapter);
        adapter.setListener(new UniversalAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(int position, BaseItem item) {
                notifyResult(((OptionItem)item).data);
            }
        });
        List<BaseItem> items = new ArrayList<>(options.length);
        for (String option : options) {
            items.add(new OptionItem(option));
        }
        adapter.setItems(items);

        LinearLayout.LayoutParams recyclerParam = new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT, ViewKnife.dip2px(50)
        );
        layout.addView(recyclerView, recyclerParam);
        LinearLayout.LayoutParams editParam = new LinearLayout.LayoutParams(
                ViewGroup.LayoutParams.MATCH_PARENT,
                ViewGroup.LayoutParams.MATCH_PARENT
        );
        layout.addView(editText, editParam);
    } else {
        wrapper = editText;
    }
    return wrapper;
}
 

/**
 * 动态添加多图裁剪底部预览图片列表
 */
private void addPhotoRecyclerView() {
    boolean isMultipleSkipCrop = getIntent().getBooleanExtra(UCrop.Options.EXTRA_SKIP_MULTIPLE_CROP, true);
    mRecyclerView = new RecyclerView(this);
    mRecyclerView.setId(R.id.id_recycler);
    mRecyclerView.setBackgroundColor(ContextCompat.getColor(this, R.color.ucrop_color_widget_background));
    RelativeLayout.LayoutParams lp =
            new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.MATCH_PARENT,
                    ScreenUtils.dip2px(this, 80));
    mRecyclerView.setLayoutParams(lp);
    LinearLayoutManager mLayoutManager = new LinearLayoutManager(this);
    mLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
    if (isAnimation) {
        LayoutAnimationController animation = AnimationUtils
                .loadLayoutAnimation(getApplicationContext(), R.anim.ucrop_layout_animation_fall_down);
        mRecyclerView.setLayoutAnimation(animation);
    }
    mRecyclerView.setLayoutManager(mLayoutManager);
    // 解决调用 notifyItemChanged 闪烁问题,取消默认动画
    ((SimpleItemAnimator) mRecyclerView.getItemAnimator())
            .setSupportsChangeAnimations(false);
    resetCutDataStatus();
    list.get(cutIndex).setCut(true);
    mAdapter = new PicturePhotoGalleryAdapter(this, list);
    mRecyclerView.setAdapter(mAdapter);
    if (isMultipleSkipCrop) {
        mAdapter.setOnItemClickListener(new PicturePhotoGalleryAdapter.OnItemClickListener() {
            @Override
            public void onItemClick(int position, View view) {
                CutInfo cutInfo = list.get(position);
                if (MimeType.isHasVideo(cutInfo.getMimeType())) {
                    return;
                }
                if (cutIndex == position) {
                    return;
                }
                resetLastCropStatus();
                cutIndex = position;
                oldCutIndex = cutIndex;
                resetCutData();
            }
        });
    }
    uCropPhotoBox.addView(mRecyclerView);
    changeLayoutParams(mShowBottomControls);

    // 裁剪框居于RecyclerView之上
    FrameLayout uCropFrame = findViewById(R.id.ucrop_frame);
    ((RelativeLayout.LayoutParams) uCropFrame.getLayoutParams())
            .addRule(RelativeLayout.ABOVE, R.id.id_recycler);

    // RecyclerView居于BottomControls之上
    ((RelativeLayout.LayoutParams) mRecyclerView.getLayoutParams())
            .addRule(RelativeLayout.ABOVE, R.id.controls_wrapper);
}
 

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View list = inflater.inflate(R.layout.mobicom_message_list, container, false);

    recyclerView = (RecyclerView) list.findViewById(R.id.messageList);
    recyclerView.setBackgroundColor(getResources().getColor(R.color.conversation_list_all_background));

    if (messageList != null && !messageList.contains(null)) {
        messageList.add(null);
    }
    recyclerAdapter = new QuickConversationAdapter(getContext(), messageList, null);
    recyclerAdapter.setAlCustomizationSettings(alCustomizationSettings);

    linearLayoutManager = new AlLinearLayoutManager(getContext());
    linearLayoutManager.setOrientation(AlLinearLayoutManager.VERTICAL);
    recyclerView.setLayoutManager(linearLayoutManager);

    DividerItemDecoration dividerItemDecoration = new DividerItemDecoration(recyclerView.getContext());
    recyclerView.addItemDecoration(dividerItemDecoration);
    recyclerView.setAdapter(recyclerAdapter);
    toolbar = (Toolbar) getActivity().findViewById(R.id.my_toolbar);
    toolbar.setClickable(false);
    fabButton = (ImageButton) list.findViewById(R.id.fab_start_new);
    loading = true;
    LinearLayout individualMessageSendLayout = (LinearLayout) list.findViewById(R.id.individual_message_send_layout);
    LinearLayout extendedSendingOptionLayout = (LinearLayout) list.findViewById(R.id.extended_sending_option_layout);

    individualMessageSendLayout.setVisibility(View.GONE);
    extendedSendingOptionLayout.setVisibility(View.GONE);

    emptyTextView = (TextView) list.findViewById(R.id.noConversations);
    emptyTextView.setTextColor(Color.parseColor(alCustomizationSettings.getNoConversationLabelTextColor().trim()));

    fabButton.setVisibility(alCustomizationSettings.isStartNewFloatingButton() ? View.VISIBLE : View.GONE);

    swipeLayout = (SwipeRefreshLayout) list.findViewById(R.id.swipe_container);
    swipeLayout.setColorScheme(android.R.color.holo_blue_bright,
            android.R.color.holo_green_light,
            android.R.color.holo_orange_light,
            android.R.color.holo_red_light);

    recyclerView.setLongClickable(true);
    registerForContextMenu(recyclerView);
    ((CustomToolbarListener) getActivity()).setToolbarTitle(ApplozicService.getContext(getContext()).getString(R.string.conversation));

    return list;
}