D8-Android自定义控件之DotNum及item复用问题

 toly:z_Dot_BigColor="@color/cornsilk"
 toly:z_Dot_Height="@dimen/dp_56"
 toly:z_Dot_text="H"
 toly:z_Dot_isChecked="false"
 toly:z_Dot_SmallColor="@color/small_circle"

    /**
     * 大圆高
     */
    private float mBigHeight = dp2px(20);
    /**
     * 大圆颜色
     */
    private int mBigCircleColor = 0x88000000;
    /**
     * 小圆颜色
     */
    private int mCenterColor = 0x885DFBF9;
    /**
     * 文字
     */
    private String mText = "";
    /**
     * 是否选中
     */
    private boolean isChecked;

    <!--圆点数字自定义控件-->
    <declare-styleable name="DotNumView">
        <!--自定义属性名 和 类型-->
        <attr name="z_Dot_Height" format="dimension"/>
        <attr name="z_Dot_text" format="string"/>
        <attr name="z_Dot_BigColor" format="reference|color"/>
        <attr name="z_Dot_SmallColor" format="reference|color"/>
        <attr name="z_Dot_isChecked" format="boolean"/>
    </declare-styleable>

mBigHeight = ta.getDimension(R.styleable.DotNumView_z_Dot_Height, mBigHeight);
mBigCircleColor = ta.getColor(R.styleable.DotNumView_z_Dot_BigColor, mBigCircleColor);
mCenterColor = ta.getColor(R.styleable.DotNumView_z_Dot_SmallColor, mCenterColor);
mText = ta.getString(R.styleable.DotNumView_z_Dot_text);
isChecked = ta.getBoolean(R.styleable.DotNumView_z_Dot_isChecked, false);
ta.recycle();//一定记得回收！！！

 //获取绘画者
 Painter painter = PainterEnum.INSTANCE.getInstance(canvas);
 float R = mBigHeight / 2;
 if (isChecked) {//选中状态绘制
     painter.draw(sa.deepClone().r(R).ang(360).p(R, -R).fs(mCenterColor));
     painter.drawText(st.deepClone()
             .size((int) (0.6 * mBigHeight)).str(mText)
             .p(R, R + (int) (0.2 * mBigHeight)).fs(Color.WHITE));
 } else {//未中状态绘制
     painter.draw(sa.deepClone().r(R).ang(360).p(R, -R).fs(mBigCircleColor));
     painter.draw(sa.deepClone().r((float) (0.3 * R)).ang(360).p(R, -R).fs(mCenterColor));
 }

    @Override
    protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
        setMeasuredDimension((int) mBigHeight, (int) mBigHeight);
    }

        //属性的get、set方法略
    /**
     * 更新视图
     * @param text 文字
     * @param checked 是否选中
     */
    public void update(String text, boolean checked) {
        mText = text;
        this.isChecked = checked;
        invalidate();
    }

//获取ImageView
final ImageView itemIv = holder.getView(R.id.id_iv_photo);
//获取DotNumView
final DotNumView dotNum = holder.getView(R.id.id_dot_check);
//设置默认图片
itemIv.setImageResource(R.drawable.no_photo);
//加点灰
itemIv.setColorFilter(Color.parseColor("#11000000"));
//加载图片
final String filePath = currentDir + File.separator + data;
//通过文件路径加载图片
ImageLoader.getInstance(3, ImageLoader.Type.LIFO).loadImage(mContext, filePath, itemIv);

//点击选中，添加遮罩
itemIv.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View v) {//已被选择
        //如果文件夹包含了路径
        if (mSelectedImg.contains(filePath)) {
            unSelect();//移除选中
        } else {
            select();//选中
        }
        mTvSelectCount.setText("已选" + mSelectedImg.size() + "张");
    }

    /**
     * 选中时的操作
     */
    private void select() {
        //如果选中的小于9个
        if (mSelectedImg.size() < 9) {
            //将选中的filePath加入集合
            mSelectedImg.add(filePath);
            //更新dotNum的状态
            dotNum.update(mSelectedImg.size() + "", true);
            //item背景加深灰
            itemIv.setColorFilter(Color.parseColor("#77000000"));
        } else {
            //否则警告
            String alert = ResUtils.getString(mCtx, R.string.select_max_count);
            Toast.makeText(mCtx, alert, Toast.LENGTH_SHORT).show();
        }
    }

    /**
     * 移除选中的操作
     */
    private void unSelect() {
        mSelectedImg.remove(filePath);
        itemIv.setColorFilter(Color.parseColor("#22000000"));
        dotNum.update(mSelectedImg.size() + "", false);
        mTvSelectCount.setText("已选" + mSelectedImg.size() + "张");
    }
});

private Map mCheckedMap = new HashMap<Integer, Integer>();

//所有dotNum更新到状态
dotNum.update("", false);
//检查mCheckedMap，动态回复状态
if (mCheckedMap.containsKey(position)) {
    L.d("position：" + position + L.l());
    dotNum.update(mCheckedMap.get(position)+"", true);
    itemIv.setColorFilter(Color.parseColor("#77000000"));
}

mCheckedMap.put(position, mSelectedImg.size());

mCheckedMap.remove(position);