androidx.recyclerview.widget.GridLayoutManager类的使用及代码示例

x33g5p2x  于2022-01-20 转载在 其他  
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本文整理了Java中androidx.recyclerview.widget.GridLayoutManager类的一些代码示例，展示了GridLayoutManager类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。GridLayoutManager类的具体详情如下：
包路径：androidx.recyclerview.widget.GridLayoutManager
类名称：GridLayoutManager

GridLayoutManager介绍

暂无

代码示例

代码示例来源：origin: andkulikov/Transitions-Everywhere

@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
  mRecyclerView = new RecyclerView(container.getContext());
  mRecyclerView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT,
    ViewGroup.LayoutParams.MATCH_PARENT));
  mRecyclerView.setLayoutManager(new GridLayoutManager(container.getContext(), 4));
  mRecyclerView.setAdapter(new Adapter());
  return mRecyclerView;
}

代码示例来源：origin: alexvasilkov/GestureViews

@Override
public void onAttachedToRecyclerView(RecyclerView recyclerView) {
  super.onAttachedToRecyclerView(recyclerView);
  if (recyclerView.getLayoutManager() instanceof GridLayoutManager) {
    GridLayoutManager gridManager = (GridLayoutManager) recyclerView.getLayoutManager();
    spanCount = gridManager.getSpanCount();
    originalSpanLookup = gridManager.getSpanSizeLookup();
    gridManager.setSpanSizeLookup(spanSizes);
  }
}

代码示例来源：origin: nickbutcher/plaid

@Override
  public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
    // we want the grid to scroll over the top of the toolbar but for the toolbar items
    // to be clickable when visible. To achieve this we play games with elevation. The
    // toolbar is laid out in front of the grid but when we scroll, we lower it's elevation
    // to allow the content to pass in front (and reset when scrolled to top of the grid)
    if (newState == RecyclerView.SCROLL_STATE_IDLE
        && layoutManager.findFirstVisibleItemPosition() == 0
        && layoutManager.findViewByPosition(0).getTop() == grid.getPaddingTop()
        && toolbar.getTranslationZ() != 0) {
      // at top, reset elevation
      toolbar.setTranslationZ(0f);
    } else if (newState == RecyclerView.SCROLL_STATE_DRAGGING
        && toolbar.getTranslationZ() != -1f) {
      // grid scrolled, lower toolbar to allow content to pass in front
      toolbar.setTranslationZ(-1f);
    }
  }
};

代码示例来源：origin: ybq/Android-SpinKit

@Override
public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
  super.onViewCreated(view, savedInstanceState);
  RecyclerView recyclerView = (RecyclerView) view.findViewById(R.id.list);
  GridLayoutManager layoutManager = new GridLayoutManager(getContext(), 4);
  layoutManager.setOrientation(RecyclerView.VERTICAL);
  recyclerView.setLayoutManager(layoutManager);
  recyclerView.setAdapter(new RecyclerView.Adapter<Holder>() {
    @Override
    public Holder onCreateViewHolder(ViewGroup parent, int viewType) {
      @SuppressLint("InflateParams") View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item_list, null);
      return new Holder(view);
    }
    @Override
    public void onBindViewHolder(Holder holder, int position) {
      holder.bind(position);
    }
    @Override
    public int getItemCount() {
      return Style.values().length;
    }
  });
}

代码示例来源：origin: mikepenz/FastAdapter

GridLayoutManager gridLayoutManager = new GridLayoutManager(this, 3);
gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
  @Override
  public int getSpanSize(int position) {

代码示例来源：origin: h6ah4i/android-advancedrecyclerview

public static int getSpanCount(@NonNull RecyclerView rv) {
  RecyclerView.LayoutManager layoutManager = rv.getLayoutManager();
  if (layoutManager instanceof GridLayoutManager) {
    return ((GridLayoutManager) layoutManager).getSpanCount();
  } else if (layoutManager instanceof StaggeredGridLayoutManager) {
    return ((StaggeredGridLayoutManager) layoutManager).getSpanCount();
  } else {
    return 1;
  }
}

代码示例来源：origin: alexvasilkov/GestureViews

@Override
public void onDetachedFromRecyclerView(RecyclerView recyclerView) {
  super.onDetachedFromRecyclerView(recyclerView);
  if (recyclerView.getLayoutManager() instanceof GridLayoutManager) {
    GridLayoutManager gridManager = (GridLayoutManager) recyclerView.getLayoutManager();
    gridManager.setSpanSizeLookup(originalSpanLookup);
    originalSpanLookup = null;
    spanCount = 1;
  }
}

代码示例来源：origin: airbnb/epoxy

private void calculatePositionDetails(RecyclerView parent, int position, LayoutManager layout) {
 int itemCount = parent.getAdapter().getItemCount();
 firstItem = position == 0;
 lastItem = position == itemCount - 1;
 horizontallyScrolling = layout.canScrollHorizontally();
 verticallyScrolling = layout.canScrollVertically();
 grid = layout instanceof GridLayoutManager;
 if (grid) {
  GridLayoutManager grid = (GridLayoutManager) layout;
  final SpanSizeLookup spanSizeLookup = grid.getSpanSizeLookup();
  int spanSize = spanSizeLookup.getSpanSize(position);
  int spanCount = grid.getSpanCount();
  int spanIndex = spanSizeLookup.getSpanIndex(position, spanCount);
  isFirstItemInRow = spanIndex == 0;
  fillsLastSpan = spanIndex + spanSize == spanCount;
  isInFirstRow = isInFirstRow(position, spanSizeLookup, spanCount);
  isInLastRow =
    !isInFirstRow && isInLastRow(position, itemCount, spanSizeLookup, spanCount);
 }
}

代码示例来源：origin: mikepenz/FastAdapter

firstVisiblePosition = ((LinearLayoutManager) mRecyclerView.getLayoutManager()).findFirstVisibleItemPosition();
} else if (mRecyclerView.getLayoutManager() instanceof GridLayoutManager) {
  firstVisiblePosition = ((GridLayoutManager) mRecyclerView.getLayoutManager()).findFirstVisibleItemPosition();

代码示例来源：origin: lisawray/groupie

groupAdapter.setSpanCount(12);
populateAdapter();
layoutManager = new GridLayoutManager(this, groupAdapter.getSpanCount());
layoutManager.setSpanSizeLookup(groupAdapter.getSpanSizeLookup());

代码示例来源：origin: lisawray/groupie

@Override public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) {
  if (!isInset(view, parent)) return;
  GridLayoutManager.LayoutParams layoutParams = (GridLayoutManager.LayoutParams) view.getLayoutParams();
  GridLayoutManager gridLayoutManager = (GridLayoutManager) parent.getLayoutManager();
  float spanSize = layoutParams.getSpanSize();
  float totalSpanSize = gridLayoutManager.getSpanCount();
  float n = totalSpanSize / spanSize; // num columns
  float c = layoutParams.getSpanIndex() / spanSize; // column index
  float leftPadding = padding * ((n - c) / n);
  float rightPadding = padding * ((c + 1) / n);
  outRect.left = (int) leftPadding;
  outRect.right = (int) rightPadding;
  outRect.bottom = padding;
}

代码示例来源：origin: darkskygit/VirtualApp

private void setGridHeaderFooter(RecyclerView.LayoutManager layoutManager) {
  if (layoutManager instanceof GridLayoutManager) {
    final GridLayoutManager gridLayoutManager = (GridLayoutManager) layoutManager;
    gridLayoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
      @Override
      public int getSpanSize(int position) {
        boolean isShowHeader = (position == 0 && hasHeader());
        boolean isShowFooter = (position == getItemCount() - 1 && hasFooter());
        if (isShowFooter || isShowHeader) {
          return gridLayoutManager.getSpanCount();
        }
        return 1;
      }
    });
  }
}

代码示例来源：origin: mikepenz/ItemAnimators

position = ((LinearLayoutManager) mRecyclerView.getLayoutManager()).findFirstVisibleItemPosition();
} else if (mRecyclerView.getLayoutManager() instanceof GridLayoutManager) {
  position = ((GridLayoutManager) mRecyclerView.getLayoutManager()).findFirstVisibleItemPosition();
      position = ((LinearLayoutManager) mRecyclerView.getLayoutManager()).findFirstVisibleItemPosition();
    } else if (mRecyclerView.getLayoutManager() instanceof GridLayoutManager) {
      position = ((GridLayoutManager) mRecyclerView.getLayoutManager()).findFirstVisibleItemPosition();

代码示例来源：origin: bluelinelabs/Conductor

@Override
protected void onViewBound(@NonNull View view) {
  super.onViewBound(view);
  tvTitle.setText(title);
  imgDot.getDrawable().setColorFilter(ContextCompat.getColor(getActivity(), dotColor), Mode.SRC_ATOP);
  ViewCompat.setTransitionName(tvTitle, getResources().getString(R.string.transition_tag_title_indexed, fromPosition));
  ViewCompat.setTransitionName(imgDot, getResources().getString(R.string.transition_tag_dot_indexed, fromPosition));
  recyclerView.setHasFixedSize(true);
  recyclerView.setLayoutManager(new GridLayoutManager(view.getContext(), 2));
  recyclerView.setAdapter(new CityGridAdapter(LayoutInflater.from(view.getContext()), CITY_MODELS));
}

代码示例来源：origin: nickbutcher/plaid

layoutManager = new GridLayoutManager(this, columns);
layoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
  @Override
  public int getSpanSize(int position) {

代码示例来源：origin: crazysunj/MultiTypeRecyclerViewAdapter

@Override
  public int getSpanSize(int position) {
    int itemType = helper.getItemViewType(position);
    if ((itemType >= -1000 && itemType < 0) || (itemType >= -3000 && itemType < -2000)) {
      return layout.getSpanCount();
    }
    return 1;
  }
});

代码示例来源：origin: airbnb/epoxy

/**
 * If a grid layout manager is set we sync the span count between the layout and the epoxy
 * adapter automatically.
 */
private void syncSpanCount() {
 LayoutManager layout = getLayoutManager();
 if (layout instanceof GridLayoutManager && epoxyController != null) {
  GridLayoutManager grid = (GridLayoutManager) layout;
  if (epoxyController.getSpanCount() != grid.getSpanCount()
    || grid.getSpanSizeLookup() != epoxyController.getSpanSizeLookup()) {
   epoxyController.setSpanCount(grid.getSpanCount());
   grid.setSpanSizeLookup(epoxyController.getSpanSizeLookup());
  }
 }
}

代码示例来源：origin: turing-tech/MaterialScrollBar

public static boolean initSpanSizeLookup(final RecyclerView rv, final IHeaderAdapter adapter)
{
  final RecyclerView.LayoutManager lm = rv.getLayoutManager();
  if(lm != null && lm instanceof GridLayoutManager)
  {
    ((GridLayoutManager)lm).setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
      @Override
      public int getSpanSize(int position) {
        if(rv == null)
          return 1;
        return adapter.isHeader(position) ? ((GridLayoutManager) lm).getSpanCount() : 1;
      }
    });
    return true;
  }
  return false;
}

代码示例来源：origin: chrisbanes/PhotoView

@Override
public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_transition);
  RecyclerView list = findViewById(R.id.list);
  list.setLayoutManager(new GridLayoutManager(this, 2));
  ImageAdapter imageAdapter = new ImageAdapter(new ImageAdapter.Listener() {
    @Override
    public void onImageClicked(View view) {
      transition(view);
    }
  });
  list.setAdapter(imageAdapter);
}

代码示例来源：origin: contentful/gallery-app-android

private void createLayoutManager() {
 layoutManager = new GridLayoutManager(this, GRID_SPAN_COUNT);
 layoutManager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() {
  @Override public int getSpanSize(int position) {
   return adapter.isSection(position) ? GRID_SPAN_COUNT : 1;
  }
 });
}

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