Android Studio第二十九期 - RecycleView的表格形式

恢弘志士之气，不宜妄自菲薄。这篇文章主要讲述Android Studio第二十九期 - RecycleView的表格形式相关的知识，希望能为你提供帮助。
本来说好了，最后一篇了，结果又来了一个新需求，就再写一篇吧~

效果图是这样的：

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思路是这样：

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demo效果：

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其实要注意的地方是：

【Android Studio第二十九期 - RecycleView的表格形式】 1.RecycleView在ScrollView中不滚动的设置；

2.RecycleView在ScrollView中滚动不灵敏；
3.RecycleView表格显示列数的填充算法；

不滚动的写法：

FullyLinearLayoutManager：

package com.example.p010_recycleviewall.recycleviewbiaoge; import android.content.Context; import android.support.v7.widget.LinearLayoutManager; import android.support.v7.widget.RecyclerView; import android.util.Log; import android.view.View; import android.view.ViewGroup; /** * Created by shining on 2017/1/10 0010. */public class FullyLinearLayoutManager extends LinearLayoutManager { private static final String TAG = FullyLinearLayoutManager.class.getSimpleName(); public FullyLinearLayoutManager(Context context) { super(context); } public FullyLinearLayoutManager(Context context, int orientation, boolean reverseLayout) { super(context, orientation, reverseLayout); } private int[] mMeasuredDimension = new int[2]; @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); Log.i(TAG, "onMeasure called. \nwidthMode " + widthMode + " \nheightMode " + heightSpec + " \nwidthSize " + widthSize + " \nheightSize " + heightSize + " \ngetItemCount() " + getItemCount()); int width = 0; int height = 0; for (int i = 0; i < getItemCount(); i++) { measureScrapChild(recycler, i, View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED), View.MeasureSpec.makeMeasureSpec(i, View.MeasureSpec.UNSPECIFIED), mMeasuredDimension); if (getOrientation() == HORIZONTAL) { width = width + mMeasuredDimension[0]; if (i == 0) { height = mMeasuredDimension[1]; } } else { 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: } setMeasuredDimension(width, height); } private void measureScrapChild(RecyclerView.Recycler recycler, int position, int widthSpec, int heightSpec, int[] measuredDimension) { 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(); } finally { } } }

FullyGridLayoutManager：

package com.example.p010_recycleviewall.recycleviewbiaoge; import android.content.Context; import android.support.v7.widget.GridLayoutManager; import android.support.v7.widget.RecyclerView; import android.view.View; import android.view.ViewGroup; /** * Created by shining on 2017/1/10 0010. */ 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(); } } } }

滚动不灵敏：

1.可以设置自定义的NoScrollView：

package com.example.p010_recycleviewall.widget.NoScrollView; import android.content.Context; import android.util.AttributeSet; import android.view.MotionEvent; import android.view.ViewConfiguration; import android.widget.ScrollView; public class NoScrollView extends ScrollView { private int mTouchSlop; public NoScrollView(Context context) { super(context); init(context); } public NoScrollView(Context context, AttributeSet attrs, int defStyle) { super(context, attrs, defStyle); init(context); } public NoScrollView(Context context, AttributeSet attrs) { super(context, attrs); init(context); } private void init(Context context) { mTouchSlop = ViewConfiguration.get(context).getScaledTouchSlop(); } float downX; float downY; @Override public boolean onInterceptTouchEvent(MotionEvent ev) { int action = ev.getAction(); switch (action) { case MotionEvent.ACTION_DOWN: downX = ev.getX(); downY = ev.getY(); break; case MotionEvent.ACTION_MOVE: if (Math.abs(ev.getX() - downX) > mTouchSlop) { return false; } break; default: break; } return super.onInterceptTouchEvent(ev); } }

2.设置RecycleView：

recyclerView1.setNestedScrollingEnabled(false);

剩下的就是算法：

//判断条件如果 if ((mList1.size()-1)%3==0){ //1 4 7 add 2 mList1.add(new Biaoge_listBean("")); mList1.add(new Biaoge_listBean("")); } if ((mList1.size()-1)%3==1){ //2 5 8 add 1 mList1.add(new Biaoge_listBean("")); }

唉~能不能不加班看~都过年了~能不能休息一下~麻蛋~就这吧~

文章图片

地址：https://github.com/geeklx/MyApplication/tree/master/p010_recycleviewall/src/main/java/com/example/p010_recycleviewall/recycleviewbiaoge

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