万能RecyclerView分割线
就不多叙述了，直接上代码
importandroid.content.Context;
importandroid.graphics.Canvas;
importandroid.graphics.Paint;
importandroid.graphics.Rect;
importandroid.support.v7.widget.LinearLayoutManager;
importandroid.support.v7.widget.RecyclerView;
importandroid.util.TypedValue;
importandroid.view.View;
publicclassDividerItemDecorationextendsRecyclerView.ItemDecoration{
/*
*RecyclerView的布局方向，默认先赋值
*为纵向布局
*RecyclerView布局可横向，也可纵向
*横向和纵向对应的分割想画法不一样
**/
privateintmOrientation=LinearLayoutManager.VERTICAL;
/**
*item之间分割线的size，1---5
*/
privateintmSize;
/**
*绘制item分割线的画笔，和设置其属性
*来绘制个性分割线
*/
privatePaintmPaint;
/**
*构造方法传入布局方向，不可不传
*
*@paramcontextcontext
*@paramorientation布局方向
*@paramcolor颜色
*@parammItemSizeitem之间分割线的size
*/
publicDividerItemDecoration(Contextcontext,intorientation,intcolor,intmItemSize){
this.mOrientation=orientation;
/*
item之间分割线的颜色
*/
this.mSize=mItemSize;
if(orientation!=LinearLayoutManager.VERTICAL&&orientation!=LinearLayoutManager.HORIZONTAL){
thrownewIllegalArgumentException("LinearLayoutManagererror");
}
mSize=(int)TypedValue.applyDimension(mItemSize,TypedValue.COMPLEX_UNIT_DIP,context.getResources().getDisplayMetrics());
mPaint=newPaint(Paint.ANTI_ALIAS_FLAG);
mPaint.setColor(color);
/*设置填充*/
mPaint.setStyle(Paint.Style.FILL);
}
@Override
publicvoidonDraw(Canvasc,RecyclerViewparent,RecyclerView.Statestate){
if(mOrientation==LinearLayoutManager.VERTICAL){
drawVertical(c,parent);
}else{
drawHorizontal(c,parent);
}
}
/**
*绘制纵向item分割线
*
*@paramcanvascanvas
*@paramparentparent
*/
privatevoiddrawVertical(Canvascanvas,RecyclerViewparent){
finalintleft=parent.getPaddingLeft();
finalintright=parent.getMeasuredWidth()-parent.getPaddingRight();
finalintchildSize=parent.getChildCount();
for(inti=0;i<childSize;i++){
finalViewchild=parent.getChildAt(i);
RecyclerView.LayoutParamslayoutParams=(RecyclerView.LayoutParams)child.getLayoutParams();
finalinttop=child.getBottom()+layoutParams.bottomMargin;
finalintbottom=top+mSize;
canvas.drawRect(left,top,right,bottom,mPaint);
}
}
/**
*绘制横向item分割线
*
*@paramcanvascanvas
*@paramparentparent
*/
privatevoiddrawHorizontal(Canvascanvas,RecyclerViewparent){
finalinttop=parent.getPaddingTop();
finalintbottom=parent.getMeasuredHeight()-parent.getPaddingBottom();
finalintchildSize=parent.getChildCount();
for(inti=0;i<childSize;i++){
finalViewchild=parent.getChildAt(i);
RecyclerView.LayoutParamslayoutParams=(RecyclerView.LayoutParams)child.getLayoutParams();
finalintleft=child.getRight()+layoutParams.rightMargin;
finalintright=left+mSize;
canvas.drawRect(left,top,right,bottom,mPaint);
}
}
/**
*设置item分割线的size
*
*@paramoutRectoutRect
*@paramviewview
*@paramparentparent
*@paramstatestate
*/
@Override
publicvoidgetItemOffsets(RectoutRect,Viewview,RecyclerViewparent,RecyclerView.Statestate){
if(mOrientation==LinearLayoutManager.VERTICAL){
outRect.set(0,0,0,mSize);
}else{
outRect.set(0,0,mSize,0);
}
}
}
调用的时候这样写：
mRecyclerView.addItemDecoration(newDividerItemDecoration(this,LinearLayoutManager.VERTICAL,Color.RED,5));
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。