Recyclerview使用flexibledivider处理分割线

Recyclerview使用flexibledivider处理分割线，如分割线的宽度，颜色，边距等，可以设置水平或竖直方向。
依赖库compile ‘com.yqritc:recyclerview-flexibledivider:1.4.0’
使用方式：

复杂的

让自己的Adapter implements FlexibleDividerDecoration. PaintProvider, HorizontalDividerItemDecoration. MarginProvider等，会需要复写几个方法来控制分割线的各种属性。

 @Override
    public int dividerLeftMargin(int position, RecyclerView parent) {
        if (position == 1){//第一行左边距为0
            return 0;
        }
        return 90;//其他行左边距为90
    }

    @Override
    public int dividerRightMargin(int position, RecyclerView parent) {
        return 0;//右边距都为0
    }

    @Override
    public Paint dividerPaint(int position, RecyclerView parent) {
        Paint paint = new Paint();
        switch (position) {
            case 2:
                int red = ContextCompat.getColor(mContext, R.color.red);
                paint.setColor(red);
                paint.setStrokeWidth(16);
                break;
            default:
                int color = ContextCompat.getColor(mContext, R.color.divider);
                paint.setColor(color);
                paint.setAntiAlias(true);
                paint.setStrokeWidth(1);
                break;
        }
        return paint;
    }

在adapter调用的地方

mAdapter = new MyAdapter(context);
LinearLayoutManager linearLayoutManager = new LinearLayoutManager(context);
linearLayoutManager.setOrientation(LinearLayoutManager.VERTICAL);
recyclerview.setLayoutManager(linearLayoutManager);
recyclerview.setAdapter(mAdapter);


recyclerview.addItemDecoration(new 
HorizontalDividerItemDecoration.Builder(getContext()) .paintProvider(mAdapter) .marginProvider(mAdapter) .build());

简单的

//设置颜色、宽度、边距
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
recyclerView.addItemDecoration(
        new HorizontalDividerItemDecoration.Builder(this)
                .color(Color.RED)
                .sizeResId(R.dimen.divider)
                .marginResId(R.dimen.leftmargin, R.dimen.rightmargin)
                .build());

//设置颜色、宽度、画笔的样式（空心实心 间隔线）
Paint paint = new Paint();
paint.setStrokeWidth(5);
paint.setColor(Color.BLUE);
paint.setAntiAlias(true);
paint.setPathEffect(new DashPathEffect(new float[]{25.0f, 25.0f}, 0));
recyclerView.addItemDecoration(
        new HorizontalDividerItemDecoration.Builder(this).paint(paint).build());

//设置宽度、支持.9图片
RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recyclerview);
recyclerView.addItemDecoration(new HorizontalDividerItemDecoration.Builder(this)
        .drawable(R.drawable.sample)
        .size(15)
        .build());

最后

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