使用方式：
RecyclerView rvParentCategory = (RecyclerView) view.findViewById(R.id.rv_parent_category); rvParentCategory.addItemDecoration(new SpaceItemDecoration(DensityUtils.dp2px(getActivity(),20)));自定义间距类：
package com.onetoo.www.onetoo.config;import android.graphics.Rect;import android.support.v7.widget.RecyclerView;import android.view.View;/** * Created by longShun on 2017/2/7. * desc */public class SpaceItemDecoration extends RecyclerView.ItemDecoration { PRivate int space; public SpaceItemDecoration(int space) { this.space = space; } @Override public void getItemOffsets(Rect outRect, View view, RecyclerView parent, RecyclerView.State state) { if(parent.getChildPosition(view) != -1) outRect.top = space; }}工具类
package com.onetoo.www.onetoo.utils;import android.content.Context;import android.util.TypedValue;/** * Created by longShun on 2016/10/20. * */public class DensityUtils { private DensityUtils() { } /** * dp转px */ public static int dp2px(Context context, float dpVal) { return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_Dip, dpVal, context.getResources().getDisplayMetrics()); } /** * sp转px */ public static int sp2px(Context context, float spVal) { return (int) TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_SP, spVal, context.getResources().getDisplayMetrics()); } /** * px转dp */ public static float px2dp(Context context, float pxVal) { final float scale = context.getResources().getDisplayMetrics().density; return (pxVal / scale); } /** * px转sp */ public static float px2sp(Context context, float pxVal) { return (pxVal / context.getResources().getDisplayMetrics().scaledDensity); }}新闻热点
疑难解答
