RecyclerView的萬能分割線

//新增自定義分割線

recyclerviewdivider divider = new recyclerviewdivider ();
divider.setmargin(getactivity(), 72, 0 , 0, 0);
recyclerview.additemdecoration(divider);
import android.annotation.suppresslint;
import android.content.context;
import android.graphics.canvas;
import android.graphics.paint;
import android.graphics.rect;
import android.graphics.drawable.drawable;
import android.support.annotation.colorres;
import android.support.annotation.nonnull;
import android.support.v4.content.contextcompat;
import android.support.v4.view.viewcompat;
import android.support.v7.widget.recyclerview;
import android.view.view;
import android.widget.linearlayout;
/** * @author fz
* @date 2018/11/8
* describe：
*/public class recyclerviewdivider extends recyclerview.itemdecoration 
public recyclerviewdivider(boolean isvertical) else 
}public void setdividerheight(int px) 
public void setdividerheight(context c, int dp) 
public void setdrawable(@nonnull drawable drawable) 
public void setcolor(int color) 
public void setcolor(context c, @colorres int colorid) 
public void setmargincolor(int color) 
public void setmargincolor(context c, @colorres int colorid) 
public void setmargin(int left, int top, int right, int bottom) 
public void setmargin(context c, int leftdp, int topdp, int rightdp, int bottomdp) 
@override
public void ondraw(canvas c, recyclerview parent, recyclerview.state state) 
if (morientation == linearlayout.vertical) else 
}/**
* 繪製縱向列表時的分隔線 這時分隔線是橫著的
* 每次 left相同，top根據child變化，right相同，bottom也變化
** @param canvas
* @param parent
*/@suppresslint("newapi")
private void drawvertical(canvas canvas, recyclerview parent) else 
final int childcount = parent.getchildcount();
for (int i = 0; i < childcount - 1; i++) 
if (null != mmarginbounds) else 
mdivider.draw(canvas);
continue;
}if (null == mpaint) 
//繪製普通分割線
if (null == mmarginbounds) 
//繪製含間距分割線
if (null == mmarginpaint) 
if (mmarginbounds.left > 0) 
if (mmarginbounds.right > 0) 
canvas.drawrect(left + mmarginbounds.left, top + mmarginbounds.top, right - mmarginbounds.right, bottom - mmarginbounds.bottom, mpaint);
}canvas.restore();
}/**
* 繪製橫向列表時的分隔線 這時分隔線是豎著的
* l、r 變化； t、b 不變
** @param canvas
* @param parent
*/private void drawhorizontal(canvas canvas, recyclerview parent) else 
final int childcount = parent.getchildcount();
for (int i = 0; i < childcount - 1; i++) 
if (null != mmarginbounds) else 
mdivider.draw(canvas);
continue;
}if (null == mpaint) 
//繪製普通分割線
if (null == mmarginbounds)
//繪製含間距分割線
if (null == mmarginpaint) 
if (mmarginbounds.top > 0)
if (mmarginbounds.bottom > 0)
canvas.drawrect(left + mmarginbounds.left, top + mmarginbounds.top, right - mmarginbounds.right, bottom - mmarginbounds.bottom, mpaint);
}canvas.restore();
}//獲取分割線尺寸
@override
public void getitemoffsets(rect outrect, view view, recyclerview parent, recyclerview.state state) else 
} else else }}
}

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