android.databinding.ViewDataBinding Java Examples

@Override
public void onItemRangeInserted(ObservableList observableList,
        int start, int count) {
    if (mLayoutId == 0) {
        return;
    }
    startTransition(mTarget);
    final int end = start + count;
    LayoutInflater inflater = (LayoutInflater) mTarget.getContext()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    for (int i = end - 1; i >= start; i--) {
        Object entry = observableList.get(i);
        ViewDataBinding binding =
                bindLayout(inflater, mTarget, mLayoutId, entry);
        mTarget.addView(binding.getRoot(), start);
    }
}
 

@Override
public void onItemRangeInserted(ObservableList observableList,
        int start, int count) {
    if (mLayoutId == 0) {
        return;
    }
    startTransition(mTarget);
    final int end = start + count;
    LayoutInflater inflater = (LayoutInflater) mTarget.getContext()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    for (int i = end - 1; i >= start; i--) {
        Object entry = observableList.get(i);
        ViewDataBinding binding =
                bindLayout(inflater, mTarget, mLayoutId, entry);
        mTarget.addView(binding.getRoot(), start);
    }
}
 

@Override
protected void convert(BaseBindHolder helper, WeatherDailyResponse.DailyResult.Daily item) {
    ViewDataBinding binding = helper.getBinding();
    binding.setVariable(BR.daily, item);
    binding.executePendingBindings();

    SuperTextView superTextView = helper.getView(R.id.super_item_daily);
    ArmsUtils.INSTANCE.obtainArmsComponent(mContext).imageLoader()
            .loadImage(mContext,
                    ImageConfigImpl.builder()
                            .url(String.format(Locale.CHINESE, Api.API_WEATHER_ICON_URL, item.getCodeDay()))
                            .placeholder(R.mipmap.ic_placeholder)
                            .errorPic(R.mipmap.weather_unknown)
                            .transformation(new FitCenter())
                            .imageView(superTextView.getRightIconIV())
                            .build());
}
 

@Override protected void setDataBindingVariables(ViewDataBinding binding) {

    if (binding instanceof LayoutScatterChartBinding) {

      Drawable drawable = AppCompatResources.getDrawable(binding.getRoot().getContext(),
                                                         R.drawable.shape_circle);
      scatterDataSet.setShape(drawable);

      LayoutScatterChartBinding bd = (LayoutScatterChartBinding) binding;

      bd.combineChart.getAxisBottom().setGridCount(1);
      bd.combineChart.getAxisLeft().setGridCount(1);
      bd.combineChart.addDataSet(scatterDataSet);

      bd.combineChart.setOnEntryClickListener(new OnEntryClickListener() {
        @Override public void onEntryClick(Chart chart, int position) {
          if (position >= 0) {
            Toast.makeText(chart.getContext(), textList.get(position), Toast.LENGTH_SHORT).show();
          }
        }
      });
    }

  }
 

@Override
public void onBindViewHolder(BindingHolder<ViewDataBinding> holder, int position) {
    SearchGroup searchGroup = getItem(position);
    switch (searchGroup.getType()) {
        case CATEGORY:
            ItemSearchCategoryBinding categoryBinding = (ItemSearchCategoryBinding) holder.binding;
            categoryBinding.setCategory((Category) searchGroup);
            categoryBinding.getRoot().setOnClickListener(v -> showSearchedSessions(searchGroup));
            break;
        case PLACE:
            ItemSearchPlaceBinding placeBinding = (ItemSearchPlaceBinding) holder.binding;
            placeBinding.setPlace((Place) searchGroup);
            placeBinding.getRoot().setOnClickListener(v -> showSearchedSessions(searchGroup));
            break;
        default:
            ItemSearchTitleBinding titleBinding = (ItemSearchTitleBinding) holder.binding;
            titleBinding.txtTitle.setText(searchGroup.getName());
            break;
    }
}
 

@Override
protected View getItemView(int layoutResId, ViewGroup parent) {
    ViewDataBinding binding;
    if (layoutResId == R.layout.item_open_api) {
        ItemOpenApiBinding b1 = DataBindingUtil.inflate(mLayoutInflater, layoutResId, parent, false);
        b1.setCallback((GeneralClickCallback<ThreeAPIBean.LinkBean>) mViewModel.mClickChildEvent::setValue);
        binding = b1;
    } else if (layoutResId == R.layout.item_open_api_section) {
        ItemOpenApiSectionBinding b2 = DataBindingUtil.inflate(mLayoutInflater, layoutResId, parent, false);
        binding = b2;
    } else {
        return super.getItemView(layoutResId, parent);
    }

    View view = binding.getRoot();
    view.setTag(com.xujiaji.mvvmquick.R.id.BaseQuickAdapter_databinding_support, binding);
    return view;
}
 

@Override
public ViewDataBinding getDataBinder(DataBindingComponent component, View[] views, int layoutId) {
  if(views == null || views.length == 0) {
    return null;
  }
  int localizedLayoutId = INTERNAL_LAYOUT_ID_LOOKUP.get(layoutId);
  if(localizedLayoutId > 0) {
    final Object tag = views[0].getTag();
    if(tag == null) {
      throw new RuntimeException("view must have a tag");
    }
    switch(localizedLayoutId) {
    }
  }
  return null;
}
 

@Override
protected void onBind(@NonNull ViewDataBinding binding, BoxOfficeEntity item, int position) {
    super.onBind(binding, item, position);

    ItemBoxOfficeBinding binding_ = (ItemBoxOfficeBinding) binding;
    if ("1".equals(item.getIrank())) {
        binding_.boRankIv.setVisibility(View.VISIBLE);
        binding_.boRankIv.setImageResource(R.drawable.svg_ic_gold_medal);
        binding_.boRankTv.setText("");
    } else if ("2".equals(item.getIrank())) {
        binding_.boRankIv.setVisibility(View.VISIBLE);
        binding_.boRankIv.setImageResource(R.drawable.svg_ic_silver_medal);
        binding_.boRankTv.setText("");
    } else if ("3".equals(item.getIrank())) {
        binding_.boRankIv.setVisibility(View.VISIBLE);
        binding_.boRankIv.setImageResource(R.drawable.svg_ic_bronze_medal);
        binding_.boRankTv.setText("");
    } else {
        binding_.boRankIv.setVisibility(View.INVISIBLE);
        binding_.boRankTv.setText(item.getIrank());
    }
}
 

@Override
public void onBindViewHolder(BindingHolder<ViewDataBinding> holder, int position) {
    SearchGroup searchGroup = getItem(position);
    switch (searchGroup.getType()) {
        case CATEGORY:
            ItemSearchCategoryBinding categoryBinding = (ItemSearchCategoryBinding) holder.binding;
            categoryBinding.setCategory((Category) searchGroup);
            categoryBinding.getRoot().setOnClickListener(v -> showSearchedSessions(searchGroup));
            break;
        case PLACE:
            ItemSearchPlaceBinding placeBinding = (ItemSearchPlaceBinding) holder.binding;
            placeBinding.setPlace((Place) searchGroup);
            placeBinding.getRoot().setOnClickListener(v -> showSearchedSessions(searchGroup));
            break;
        default:
            ItemSearchTitleBinding titleBinding = (ItemSearchTitleBinding) holder.binding;
            titleBinding.txtTitle.setText(searchGroup.getName());
            break;
    }
}
 

/**
 * 不必关心从缓存取 还是inflate
 *
 * @param parent
 * @param layoutId
 * @return
 */
@Override
public ViewHolder getViewHolderByType(ViewGroup parent, int layoutId) {
    ViewHolder holder = mViewCache.get(layoutId);
    if (holder == null) {
        Log.d("TAG", "创建");
        ViewDataBinding binding = DataBindingUtil.inflate(mInflater, layoutId, parent, false);
        View itemView = binding.getRoot();
        ViewHolder holder2 = new ViewHolder(itemView, layoutId);
        itemView.setTag(R.id.zxt_tag_vh, holder2);
        itemView.setTag(R.id.zxt_tag_vdb, binding);
        return holder2;
    }
    Log.d("TAG", "复用");
    return holder;
}
 

/**
 * Clears all Views in {@code parent} and fills it with a View for
 * each item in {@code entries}, bound to the item. If layoutId
 * is 0, no Views will be added.
 *
 * @param parent The ViewGroup to contain the list of items.
 * @param layoutId The layout ID to inflate for the child Views.
 * @param entries The list of items to bind to the inflated Views. Each
 *                item will be bound to a different child View.
 */
private static void resetViews(ViewGroup parent, int layoutId,
        List entries) {
    parent.removeAllViews();
    if (layoutId == 0) {
        return;
    }
    LayoutInflater inflater = (LayoutInflater) parent.getContext()
            .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    for (int i = 0; i < entries.size(); i++) {
        Object entry = entries.get(i);
        ViewDataBinding binding = bindLayout(inflater, parent,
                layoutId, entry);
        parent.addView(binding.getRoot());
    }
}
 

@Override
public void bind(@NonNull final View view) {
  final ViewDataBinding viewDataBinding = DataBindingUtil.bind(view);
  for (int i = 0; i < handlers.size(); i++) {
    final int variableId = handlers.keyAt(i);
    viewDataBinding.setVariable(variableId, handlers.get(variableId));
  }
  viewDataBinding.executePendingBindings();
}
 

@Override
public View getView(ViewGroup parent, int pos, D data) {
    ViewHolder holder = getViewHolderByType(parent, mItemLayoutId);
    ViewDataBinding binding = (ViewDataBinding) holder.itemView.getTag(R.id.zxt_tag_vdb);
    onBindViewHolder(parent, holder, data, pos);
    binding.setVariable(BR.data, data);
    binding.setVariable(BR.itemP, ItemPresenter);
    return holder.itemView;
}
 

@Override
public void onBindViewHolder(final RecyclerViewDatabindingAdapter<ItemTypeT>.BindingHolder holder,
                             final int position) {
    if (position == 0) {
        final ViewDataBinding itemBinding = holder.getBinding();
        itemBinding.setVariable(headerParams.headerDataBrId, headerParams.headerData);
        itemBinding.executePendingBindings();
        return;
    }

    super.onBindViewHolder(holder, position);
}
 

@Override
public BindingHolder onCreateViewHolder(final ViewGroup parent, final int viewType) {
    final ViewDataBinding itemBinding =
            DataBindingUtil.inflate(LayoutInflater.from(parent.getContext()), itemLayoutId, parent, false);
    final BindingHolder holder = new BindingHolder(itemBinding.getRoot());
    holder.setBinding(itemBinding);
    return holder;
}
 

/**
 * Called when the view holder is created.
 * @param viewGroup The view group.
 * @param layoutId The id of the layout used to display items.
 * @return The built view holder.
 */
@Override
public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int layoutId)
{
    if (inflater == null)
    {
        inflater = LayoutInflater.from(viewGroup.getContext());
    }

    ViewDataBinding binding = DataBindingUtil.inflate(inflater, layoutId, viewGroup, false);
    return new ViewHolder(binding);
}
 

private void initWeekView() {
    LinearLayoutManager weekLayoutManager = new LinearLayoutManager(this);
    weekLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);

    binding.includeWeek.recyclerView.setLayoutManager(weekLayoutManager);
    final BaseAdapter weekAdapter = new BaseAdapter<>(R.layout.item_ordinal, BR.ordinal, viewModel.getWeeks());
    binding.includeWeek.recyclerView.setAdapter(weekAdapter);
    weekAdapter.setOnItemHandler(
            new BaseAdapter.OnItemHandler() {
                @Override
                public void onItemHandler(ViewDataBinding viewDataBinding, final int position) {
                    final ItemOrdinalBinding itemBinding = (ItemOrdinalBinding) viewDataBinding;
                    if (viewModel.getWeeks().get(position).isSelected()) {
                        Logger.e("被选中的周" + viewModel.getWeeks().get(position).getId());
                        itemBinding.getRoot().setSelected(true);
                    } else {
                        //由于RecyclerView的布局重用机制，这里必须将其他的布局设置为未选中状态
                        itemBinding.getRoot().setSelected(false);
                    }

                    itemBinding.getRoot().setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View view) {
                            viewModel.getWeeks().get(weekPosition).setSelected(false);
                            viewModel.getWeeks().get(position).setSelected(true);
                            weekPosition = position;
                            weekAdapter.notifyDataSetChanged();
                        }
                    });
                }
            }
    );
}
 

private void initTimeView() {
    LinearLayoutManager timeLayoutManager = new LinearLayoutManager(this);
    timeLayoutManager.setOrientation(LinearLayoutManager.HORIZONTAL);
    binding.includeTime.recyclerView.setLayoutManager(timeLayoutManager);
    final BaseAdapter timeAdapter = new BaseAdapter<>(R.layout.item_ordinal, BR.ordinal, viewModel.getTime());
    binding.includeTime.recyclerView.setAdapter(timeAdapter);
    timeAdapter.setOnItemHandler(
            new BaseAdapter.OnItemHandler() {
                @Override
                public void onItemHandler(ViewDataBinding viewDataBinding, final int position) {
                    final ItemOrdinalBinding itemBinding = (ItemOrdinalBinding) viewDataBinding;
                    if (viewModel.getTime().get(position).isSelected()) {
                        Logger.e("被选中的课程" + position);
                        itemBinding.getRoot().setSelected(true);
                    } else {
                        //由于RecyclerView的布局重用机制，这里必须将其他的布局设置为未选中状态
                        itemBinding.getRoot().setSelected(false);
                    }

                    itemBinding.getRoot().setOnClickListener(new View.OnClickListener() {
                        @Override
                        public void onClick(View view) {
                            viewModel.getTime().get(position).setSelected(!viewModel.getTime().get(position).isSelected());
                            timeAdapter.notifyDataSetChanged();
                        }
                    });
                }
            }
    );
}
 

@Test
@UiThreadTest
public void instantiateItemAddsBindedView() throws Exception {
    ViewGroup container = new LinearLayout(InstrumentationRegistry.getContext());
    sut.instantiateItem(container, 0);
    View child = container.getChildAt(0);

    ViewDataBinding binding = DataBindingUtil.bind(child);

    assertEquals(1, container.getChildCount());
    assertEquals("com.manaschaudhari.android_mvvm.test.databinding.LayoutTestBinding", binding.getClass().getName());
    assertTrue(testBinder.lastBinding == binding);
    assertTrue(testBinder.lastViewModel == viewModelsSource.getValue().get(0));
}
 

@Override
public void onBindViewHolder(BindingViewHolder holder, int position) {
    Object o = mDataList.get(position);
    ViewDataBinding binding = holder.getBinding();
    binding.setVariable(getVariable(o, position), o);
    binding.executePendingBindings();
    if (o instanceof BaseExpandableObservable) {
        BaseExpandableObservable baseExpandableObservable = (BaseExpandableObservable) o;
        ObservableArrayList<Object> childList = baseExpandableObservable.getChildList();
        if (childList != null && !childList.isEmpty())
            baseExpandableObservable.setItemListExpandCollapseListener(this);
    }
}
 

@Override
public View getView(ViewGroup parent, int pos, T data) {
    ViewHolder holder = getViewHolderByType(parent, data.getItemLayoutId());
    ViewDataBinding binding = (ViewDataBinding) holder.itemView.getTag(R.id.zxt_tag_vdb);
    onBindViewHolder(parent, holder, data, pos);
    binding.setVariable(BR.data, data);
    binding.setVariable(BR.itemP, ItemPresenter);
    return holder.itemView;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    ViewDataBinding binding = DataBindingUtil.setContentView(this, R.layout.activity_currency_details);
    binding.setVariable(BR.model, mViewModel);
    if (!isRetained(savedInstanceState)) {
        final String currencyCode = getIntent().getStringExtra(INTENT_EXTRA_PARAM_CURRENCY_CODE);
        Bundle bundle = new Bundle();
        bundle.putString(CurrencyDetailsViewModel.KEY_CURRENCY_CODE, currencyCode);
        mViewModel.onLoad(bundle);
    }
}
 

@Test
@UiThreadTest
public void destroyItemUnbindsAndRemovesChildView() throws Exception {
    ViewGroup container = new LinearLayout(InstrumentationRegistry.getContext());
    Object pagerObject = sut.instantiateItem(container, 0);
    View child = container.getChildAt(0);
    ViewDataBinding binding = DataBindingUtil.bind(child);

    sut.destroyItem(container, 0, pagerObject);

    assertEquals(0, container.getChildCount());
    assertTrue(testBinder.lastBinding == binding);
    assertTrue(testBinder.lastViewModel == null);
}
 

@Override
public View getView(int position, View convertView, ViewGroup parent) {
    View view;
    if (convertView == null) {
        LayoutInflater layoutInflater = LayoutInflater.from(parent.getContext());
        view = layoutInflater.inflate(layoutId, parent, false);
    } else {
        view = convertView;
    }
    final ViewDataBinding binding =
            DataBindingUtil.bind(view);
    binding.setVariable(BR.item, getResource(position));
    binding.executePendingBindings();
    return view;
}
 

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    mBinding = ActivityDbBinding.inflate(getLayoutInflater());
    setContentView(mBinding.getRoot());

    mDatas = initDatas();
    mAdapter = new BaseMulTypeBindingAdapter<MulTypeSingleBean>(this, mDatas) {
        @Override
        public void onBindViewHolder(BaseBindingVH<ViewDataBinding> holder, int position) {
            super.onBindViewHolder(holder, position);
            //如果有特殊需求，可传入数据结构的泛型，避免强转
            MulTypeSingleBean data = mDatas.get(position);
            //Binding类 不可避免的需要强转了
            ViewDataBinding binding = holder.getBinding();
            switch (data.getItemLayoutId()) {
                case R.layout.item_db_mul_1:
                    ItemDbMul1Binding itemDbMul1Binding = (ItemDbMul1Binding) binding;
                    break;
                case R.layout.item_db_mul_2:
                    ItemDbMul2Binding itemDbMul2Binding = (ItemDbMul2Binding) binding;
                    break;
            }

        }
    };

    //设置点击事件
    mAdapter.setItemPresenter(new SingleBeanPresenter());

    mBinding.rv.setAdapter(mAdapter);
    mBinding.rv.setLayoutManager(new LinearLayoutManager(this));

}
 

public static void LoadAudioCover(final Callable<Bitmap> loader, final ViewDataBinding binding, final Activity activity){
    final Callbacks updater = new Callbacks() {

        @Override
        public Bitmap getImage() {
            try {
                return loader.call();
            } catch (Exception ignored) {
                return null;
            }
        }

        @Override
        public void updateImage(final Bitmap bitmap, View target) {
            if (bitmap != null && activity != null) {
                activity.runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        binding.setVariable(BR.cover, new BitmapDrawable(VLCApplication.getAppResources(), bitmap));
                        binding.executePendingBindings();
                    }
                });
            }

        }
    };
    LoadImage(updater, null);
}
 

@Override
public void destroyItem(ViewGroup container, int position, Object object) {
    ViewDataBinding binding = (ViewDataBinding) object;
    binder.bind(binding, null);
    binding.executePendingBindings();
    container.removeView(binding.getRoot());
}
 

public ViewDataBinding getDataBinder(DataBindingComponent bindingComponent, View view, int layoutId) {
    DataBinderMappable subMapper = getSubMapper(layoutId);
    if (subMapper == null) {
        return null;
    }

    layoutId = subMapper.getLayoutId((String) view.getTag());
    if (layoutId == 0) {
        bindingPackageName = null;
        throw new IllegalArgumentException("View is not a binding layout");
    }

    return subMapper.getDataBinder(bindingComponent, view, layoutId);
}
 

@Override
protected void onBind(@NonNull ViewDataBinding binding, Actor item, int position) {
    super.onBind(binding, item, position);

    binding.getRoot().setOnClickListener(v -> {
        ArrayList<String> urls = new ArrayList<>();
        for (Actor actor : getData()) {
            urls.add(actor.img);
        }

        ((MovieDetailActivity) getContext()).gotoPreviewImages(urls, position);
    });
}
 

@Override
public void onBindBinding(ViewDataBinding binding, int bindingVariable, @LayoutRes int layoutId, int position, T item) {
    super.onBindBinding(binding, bindingVariable, layoutId, position, item);
    lastScrollPosition = position;
    updateToTopButtonVisibility(false);
    final TextView tv = binding.getRoot().findViewById(R.id.event_log_item_text);
    if (tv != null) tv.setTextColor(model.colorForPosition(position));
}