scrollview嵌套recycleview滑动冲突的问题之2

来源：互联网发布：mysql cve 2016 6662 编辑：程序博客网时间：2024/05/20 11:48
这里是对 grid形式的recycleview 滚栋冲突的问题
package com.yzkj.utils.ui;import android.content.Context;import android.support.v7.widget.GridLayoutManager;import android.support.v7.widget.RecyclerView;import android.view.View;import android.view.ViewGroup;public class FullyGridLayoutManager extends GridLayoutManager {    private int mwidth = 0;    private int mheight = 0;    public FullyGridLayoutManager(Context context, int spanCount) {        super(context, spanCount);    }    public FullyGridLayoutManager(Context context, int spanCount, int orientation, boolean reverseLayout) {        super(context, spanCount, orientation, reverseLayout);    }    private int[] mMeasuredDimension = new int[2];    public int getMwidth() {        return mwidth;    }    public void setMwidth(int mwidth) {        this.mwidth = mwidth;    }    public int getMheight() {        return mheight;    }    public void setMheight(int mheight) {        this.mheight = mheight;    }    @Override    public void onMeasure(RecyclerView.Recycler recycler, RecyclerView.State state, int widthSpec, int heightSpec) {        final int widthMode = View.MeasureSpec.getMode(widthSpec);        final int heightMode = View.MeasureSpec.getMode(heightSpec);        final int widthSize = View.MeasureSpec.getSize(widthSpec);        final int heightSize = View.MeasureSpec.getSize(heightSpec);        int width = 0;        int height = 0;        int count = getItemCount();        int span = getSpanCount();        for (int i = 0; i < count; i++) {            measureScrapChild(recycler, i,                    View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),                    View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED),                    mMeasuredDimension);            if (getOrientation() == HORIZONTAL) {                if (i % span == 0) {                    width = width + mMeasuredDimension[0];                }                if (i == 0) {                    height = mMeasuredDimension[1];                }            } else {                if (i % span == 0) {                    height = height + mMeasuredDimension[1];                }                if (i == 0) {                    width = mMeasuredDimension[0];                }            }        }        switch (widthMode) {            case View.MeasureSpec.EXACTLY:                width = widthSize;            case View.MeasureSpec.AT_MOST:            case View.MeasureSpec.UNSPECIFIED:        }        switch (heightMode) {            case View.MeasureSpec.EXACTLY:                height = heightSize;            case View.MeasureSpec.AT_MOST:            case View.MeasureSpec.UNSPECIFIED:        }        setMheight(height);        setMwidth(width);        setMeasuredDimension(width, height);    }    private void measureScrapChild(RecyclerView.Recycler recycler, int position, int widthSpec,                                   int heightSpec, int[] measuredDimension) {        if (position < getItemCount()) {            try {                View view = recycler.getViewForPosition(0);//fix 动态添加时报IndexOutOfBoundsException                if (view != null) {                    RecyclerView.LayoutParams p = (RecyclerView.LayoutParams) view.getLayoutParams();                    int childWidthSpec = ViewGroup.getChildMeasureSpec(widthSpec,                            getPaddingLeft() + getPaddingRight(), p.width);                    int childHeightSpec = ViewGroup.getChildMeasureSpec(heightSpec,                            getPaddingTop() + getPaddingBottom(), p.height);                    view.measure(childWidthSpec, childHeightSpec);                    measuredDimension[0] = view.getMeasuredWidth() + p.leftMargin + p.rightMargin;                    measuredDimension[1] = view.getMeasuredHeight() + p.bottomMargin + p.topMargin;                    recycler.recycleView(view);                }            } catch (Exception e) {                e.printStackTrace();            }        }    }}
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