57 lines
1.9 KiB
Java
57 lines
1.9 KiB
Java
package com.idle.wall.idletool;
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import android.graphics.Rect;
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import android.view.View;
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import androidx.annotation.NonNull;
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import androidx.recyclerview.widget.GridLayoutManager;
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import androidx.recyclerview.widget.RecyclerView;
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public class Itemhelper extends RecyclerView.ItemDecoration {
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private int ex_space = 0;
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private int v_space = 0;
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private int h_space = 0;
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@Override
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public void getItemOffsets(@NonNull Rect outRect, @NonNull View view, @NonNull RecyclerView parent, @NonNull RecyclerView.State state) {
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int position = parent.getChildAdapterPosition(view);
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int spanSize = 1;
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int spanIndex = 0;
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int spanCount = 1;
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RecyclerView.LayoutManager layoutManager = parent.getLayoutManager();
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if (layoutManager instanceof GridLayoutManager) {
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GridLayoutManager layoutManager1 = (GridLayoutManager) layoutManager;
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GridLayoutManager.LayoutParams layoutParams = (GridLayoutManager.LayoutParams) view.getLayoutParams();
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spanCount = layoutManager1.getSpanCount();
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spanSize = layoutManager1.getSpanSizeLookup().getSpanSize(position);
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spanIndex = layoutParams.getSpanIndex();
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}
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if (spanSize == spanCount) {
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outRect.left = v_space + ex_space;
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outRect.right = v_space + ex_space;
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outRect.bottom = h_space;
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} else {
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int itemAllSpacing = (v_space * (spanCount + 1) + ex_space * 2) / spanCount;
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int left = v_space * (spanIndex + 1) - itemAllSpacing * spanIndex + ex_space;
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int right = itemAllSpacing - left;
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outRect.left = left;
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outRect.right = right;
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outRect.bottom = h_space;
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}
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}
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public Itemhelper(int v_space, int h_space, int ex_space) {
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this.ex_space = ex_space;
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this.h_space = h_space;
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this.v_space = v_space;
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}
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}
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