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自定义滑动解锁View
- 需求如下：
近期需要做一个类似屏幕滑动解锁的功能，右划开始，左划暂停。
- 需求效果图如下
- 实现效果展示
- 自定义view如下
/**
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Desc 自定义滑动解锁View
-
Author ZY
-
Mail sunnyfor98@gmail.com
-
Date 2021/5/17 11:52
*/
@SuppressLint(“ClickableViewAccessibility”)
class SlideSwitchButton : ViewGroup {
constructor(context: Context?) : this(context, null)constructor(context: Context?, attrs: AttributeSet?) : this(context, attrs, 0)constructor(context: Context?, attrs: AttributeSet?, defStyleAttr: Int) : this(context,attrs,defStyleAttr, 0)constructor(context: Context?,attrs: AttributeSet?,defStyleAttr: Int,defStyleRes: Int) : super(context, attrs, defStyleAttr, defStyleRes)var duration = 300var isOpen = falsevar scrollView: ScrollView? = nullvar onSwitchListener: ((isOpen: Boolean) -> Unit)? = nullprivate var itemHeight = 0private var itemPadding = 0private var parentWidth = 0private val stopImgView: ImageView by lazy {ImageView(context).apply {setImageResource(R.drawable.f1_svg_btn_stop)}}private val startImgView: ImageView by lazy {ImageView(context).apply {setImageResource(R.drawable.f1_svg_btn_start)}}private val hintView: TextView by lazy {TextView(context).apply {setTextSize(TypedValue.COMPLEX_UNIT_PX, resources.getDimension(R.dimen.dp_14))compoundDrawablePadding = resources.getDimension(R.dimen.dp_5).toInt()setTextColor(Color.parseColor("#727b9f"))}}init {setBackgroundResource(R.drawable.f1_sel_bg_slide_btn)addView(hintView)updateHint()addView(stopImgView)addView(startImgView)var x = 0startImgView.setOnTouchListener { v, event ->when (event.action) {MotionEvent.ACTION_DOWN -> {scrollView?.requestDisallowInterceptTouchEvent(true)x = event.x.toInt()}MotionEvent.ACTION_UP -> {if (startImgView.x < (parentWidth - startImgView.width) / 2) {play(false)} else {play(true)}scrollView?.requestDisallowInterceptTouchEvent(false)}MotionEvent.ACTION_MOVE -> {val lastX = event.x - xif (startImgView.x + lastX > parentWidth - itemPadding - startImgView.width) {return@setOnTouchListener true}if (startImgView.x + lastX < itemPadding) {return@setOnTouchListener true}startImgView.x += lastX}}return@setOnTouchListener true}}override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {super.onMeasure(widthMeasureSpec, heightMeasureSpec)setMeasuredDimension(widthMeasureSpec, resources.getDimension(R.dimen.dp_90).toInt())itemPadding = resources.getDimension(R.dimen.dp_5).toInt()itemHeight = resources.getDimension(R.dimen.dp_80).toInt()parentWidth = MeasureSpec.getSize(widthMeasureSpec)}override fun onLayout(changed: Boolean, l: Int, t: Int, r: Int, b: Int) {stopImgView.layout(itemPadding,itemPadding,itemPadding + itemHeight,itemPadding + itemHeight)startImgView.layout(itemPadding,itemPadding,itemPadding + itemHeight,itemPadding + itemHeight)val len =hintView.paint.measureText(hintView.text.toString()) + resources.getDimension(R.dimen.dp_24)val let = (r - len) / 2hintView.layout(let.toInt(),resources.getDimension(R.dimen.dp_35).toInt(),(let + len).toInt(),resources.getDimension(R.dimen.dp_55).toInt())}/*** flag tue为开始 false为停止*/private fun play(flag: Boolean) {val mStart = startImgView.xval mEnd = if (flag) {parentWidth - itemPadding * 2 - startImgView.width.toFloat()} else {stopImgView.x - itemPadding}val animatorOBJ =ObjectAnimator.ofFloat(startImgView, "translationX", mStart, mEnd)animatorOBJ.duration = duration.toLong()animatorOBJ.addListener(object : Animator.AnimatorListener {override fun onAnimationRepeat(animation: Animator?) {}override fun onAnimationEnd(animation: Animator?) {updateHint(flag)if (flag != isOpen) {isOpen = flagonSwitchListener?.invoke(flag)}}override fun onAnimationCancel(animation: Animator?) {}override fun onAnimationStart(animation: Animator?) {}})animatorOBJ.start()}private fun updateHint(lock: Boolean = false) {val icon = if (lock) {hintView.text = "滑动停止"ResourcesCompat.getDrawable(resources, R.drawable.f1_svg_left_arrow, null)} else {hintView.text = "滑动开始"ResourcesCompat.getDrawable(resources, R.drawable.f1_svg_right_arrow, null)}icon?.setBounds(0,0,resources.getDimension(R.dimen.dp_14).toInt(),resources.getDimension(R.dimen.dp_12).toInt())if (lock) {hintView.setCompoundDrawables(icon, null, null, null)} else {hintView.setCompoundDrawables(null, null, icon, null)}}fun stop() {play(false)}fun start() {play(true)}
}
这里需要注意一点：页面过长时，ScrollView和SlideSwitchButton滑动事件会冲突，所以需要吧scrollView传进来
- 调用方式如下
/**
-
Desc 自定义滑动解锁View
-
Author ZY
-
Mail sunnyfor98@gmail.com
-
Date 2021/5/28 17:48
*/
class SlideSwitchButtonActivity : AppCompatActivity() {
override fun onCreate(savedInstanceState: Bundle?) {super.onCreate(savedInstanceState)setContentView(R.layout.f1_act_main)btn_start.scrollView = scrollViewbtn_start.onSwitchListener = {if (it) {Toast.makeText(this,"开始操作",Toast.LENGTH_LONG).show()btn_start.start()} else {Toast.makeText(this,"停止操作",Toast.LENGTH_LONG).show()btn_start.stop()}}}
}
之前封装了一版ZyFrame框架，集工具类、自定义组件、网络请求框架一体，感觉用起来有些厚重，接下来会抽时间做拆分，ZyFrame保留网络请求功能，ZyUI专做自定义组件，ZyTool专做工具类，大概就这样。
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