自定义MagicIndicator指示器

MagicIndicator的Item默认是match_parent的。所以需要自定义CommonPagerTitleView

    var commonNavigator = CommonNavigator(this)
        commonNavigator.adapter = object : CommonNavigatorAdapter() {
            override fun getCount() = stringList.size

            override fun getTitleView(context: Context?, index: Int): IPagerTitleView {
                var commonTextView = CommonPagerTitleView(context)
                var bn_textView = LayoutInflater.from(context).inflate(R.layout.bn_up_textview,null) as TextView
                bn_textView.text = stringList[index]
                commonTextView.setContentView(bn_textView)
                var fp = FrameLayout.LayoutParams(FrameLayout.LayoutParams.WRAP_CONTENT,FrameLayout.LayoutParams.WRAP_CONTENT)
                fp.gravity = Gravity.CENTER_VERTICAL
                fp.setMargins(UIUtil.dip2px(context,5.0),0,0,0)
                bn_textView.layoutParams = fp
                commonTextView.onPagerTitleChangeListener = object:OnPagerTitleChangeListener{
                    override fun onSelected(index: Int, totalCount: Int) {
                       bn_textView.setTextColor(Color.parseColor("#FFFFFF"))
                        bn_textView.setBackgroundResource(R.drawable.bn_dowm_catetories_selected)
                    }

                    override fun onDeselected(index: Int, totalCount: Int) {
                        bn_textView.setTextColor(Color.parseColor("#66000000"))
                        bn_textView.setBackgroundResource(R.drawable.bn_dowm_catetories_unselected)
                    }

                    override fun onLeave(
                        index: Int,
                        totalCount: Int,
                        leavePercent: Float,
                        leftToRight: Boolean
                    ) {

                    }

                    override fun onEnter(
                        index: Int,
                        totalCount: Int,
                        enterPercent: Float,
                        leftToRight: Boolean
                    ) {

                    }
                }


                commonTextView.setOnClickListener {
                    mDataBind.miSelectUp.onPageSelected(index)
                    mDataBind.miSelectUp.onPageScrolled(index, 0f, 0)
                }
                return commonTextView
            }

            override fun getIndicator(context: Context?): IPagerIndicator? {
                return null
            }
        }
        mDataBind.miSelectUp.navigator = commonNavigator

看下效果