From 986648a7fc5d377d5c100ba41350e6313dcf6e5b Mon Sep 17 00:00:00 2001
From: zuoxiao <470321431@qq.com>
Date: 星期五, 21 二月 2025 17:04:29 +0800
Subject: [PATCH] 1.优化我的界面的更新本地数据功能添加loding 2.优化巡检详情页面增大放大级别 3.优化我的界面的更新本地数据功能所有接口都结束后显示数据更新成功
---
expand_button/src/main/java/com/example/expand_button/ExpandButton.kt | 632 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 631 insertions(+), 1 deletions(-)
diff --git a/expand_button/src/main/java/com/example/expand_button/ExpandButton.kt b/expand_button/src/main/java/com/example/expand_button/ExpandButton.kt
index 841ce47..007713c 100644
--- a/expand_button/src/main/java/com/example/expand_button/ExpandButton.kt
+++ b/expand_button/src/main/java/com/example/expand_button/ExpandButton.kt
@@ -1,14 +1,644 @@
package com.example.expand_button
-class ExpandButton {
+import android.animation.ValueAnimator
+import android.content.Context
+import android.graphics.Canvas
+import android.graphics.drawable.Drawable
+import android.text.Spannable
+import android.text.SpannableStringBuilder
+import android.text.style.ClickableSpan
+import android.util.AttributeSet
+import android.view.Gravity
+import android.view.MotionEvent
+import android.view.View
+import androidx.appcompat.widget.AppCompatTextView
+import androidx.core.content.ContextCompat
+
+/**
+ * 鍙睍寮�鐨勬寜閽帶浠�
+ * 鍒濆鐘舵�佹樉绀哄崟涓瓧绗︼紝鐐瑰嚮鍚庡睍寮�鏄剧ず瀹屾暣鏂囧瓧
+ * 灞曞紑鍚庣殑姣忎釜瀛楃閮藉彲浠ュ崟鐙偣鍑�
+ */
+class ExpandButton @JvmOverloads constructor(
+ context: Context,
+ attrs: AttributeSet? = null,
+ defStyleAttr: Int = 0
+) : AppCompatTextView(context, attrs, defStyleAttr) {
+
+ // 淇敼灞炴��
+ private data class LegendItem(
+ val selectedIcon: Drawable,
+ val unselectedIcon: Drawable,
+ val description: String,
+ var isSelected: Boolean = true
+ )
+
+ private var legendItems: List<LegendItem> = listOf()
+ private var itemSpacing: Float = context.resources.displayMetrics.density * 16 // 鍥句緥椤逛箣闂寸殑姘村钩闂磋窛
+ private var iconSize: Int = (24 * context.resources.displayMetrics.density).toInt() // 鍥炬爣澶у皬
+ private var iconTextSpacing: Float = context.resources.displayMetrics.density * 4 // 鍥炬爣鍜屾枃瀛椾箣闂寸殑鍨傜洿闂磋窛
+
+ // 灞曞紑鏃舵樉绀虹殑瀹屾暣鏂囧瓧
+ private var expandedText: String = "鏍囨敞鐐�: 褰撳墠浣嶇疆\n鍖哄煙: 閰嶉�佽寖鍥�"
+ // 鏀惰捣鏃舵樉绀虹殑鍗曚釜瀛楃
+ private var collapsedText: String = "鍥句緥"
+ // 褰撳墠鏄惁澶勪簬灞曞紑鐘舵��
+ private var isExpanded: Boolean = false
+ // 鍔ㄧ敾鎸佺画鏃堕棿锛岄粯璁�300姣
+ private var animationDuration: Long = 300
+ // 瀛楃鐐瑰嚮浜嬩欢鐩戝惉鍣�
+ private var onCharClickListener: ((Char, Int) -> Unit)? = null
+ // 瀛楅棿璺濓紝榛樿涓�2dp
+ private var customLetterSpacing: Float = context.resources.displayMetrics.density * 2
+
+ // 涓夎褰㈠浘鏍�
+ private val triangleDrawable: Drawable = ContextCompat.getDrawable(
+ context,
+ R.drawable.ic_triangle
+ )!!.mutate()
+
+ // 鍥炬爣鏃嬭浆瑙掑害
+ private var triangleRotation = 0f
+
+ // 涓夎褰㈠浘鏍囦笌鏂囧瓧鐨勯棿璺濓紝榛樿涓�8dp
+ private var triangleMargin: Float = 3 * context.resources.displayMetrics.density
+
+ // 娣诲姞鏂板睘鎬�
+ private var textLines: List<String> = listOf()
+
+ // 娣诲姞鐐瑰嚮鍥炶皟鎺ュ彛
+ interface OnLegendItemClickListener {
+ fun onLegendItemClick(position: Int, isSelected: Boolean)
+ }
+
+ private var legendItemClickListener: OnLegendItemClickListener? = null
+
+ // 淇敼鍥句緥椤圭殑鎬婚珮搴﹁绠�
+ private val legendItemHeight: Int
+ get() = iconSize + iconTextSpacing.toInt() + paint.textSize.toInt() + paint.descent().toInt() - paint.ascent().toInt()
+
+ // 娣诲姞灞曞紑鍚庣殑瀛椾綋澶у皬灞炴��
+ private var expandedTextSize: Float = textSize
+
+ // 娣诲姞涓�涓彉閲忎繚瀛橀粯璁ゅ瓧浣撳ぇ灏�
+ private var defaultTextSize: Float = 0f
+
+ // 娣诲姞涓�涓睘鎬у畾涔変笁瑙掑舰鍥炬爣鐨勭偣鍑诲尯鍩熸墿灞曡寖鍥�
+ private val triangleClickPadding: Float = 15f * context.resources.displayMetrics.density // 20dp
+
+ // 娣诲姞涓�涓爣璇嗙锛岀敤浜庡尯鍒嗕笉鍚岀殑 ExpandButton 瀹炰緥
+ private var buttonId: String = "default"
+
+ companion object {
+ private const val PREFS_NAME = "expand_button_prefs"
+ private const val KEY_LEGEND_STATES = "legend_states"
+ }
+
+ init {
+ // 淇濆瓨 XML 涓缃殑榛樿瀛椾綋澶у皬
+ defaultTextSize = textSize
+
+ // 璇诲彇鑷畾涔夊睘鎬�
+ context.theme.obtainStyledAttributes(
+ attrs,
+ R.styleable.ExpandButton,
+ defStyleAttr,
+ 0
+ ).apply {
+ try {
+ customLetterSpacing = getDimension(R.styleable.ExpandButton_letterSpacing, customLetterSpacing)
+ expandedText = getString(R.styleable.ExpandButton_expandedText) ?: "鏍囨敞鐐�: 褰撳墠浣嶇疆\n鍖哄煙: 閰嶉�佽寖鍥�"
+ collapsedText = getString(R.styleable.ExpandButton_collapsedText) ?: "鍥句緥"
+ animationDuration = getInteger(R.styleable.ExpandButton_animDuration, 300).toLong()
+ triangleMargin = getDimension(R.styleable.ExpandButton_triangleMargin, triangleMargin)
+ itemSpacing = getDimension(R.styleable.ExpandButton_itemSpacing, itemSpacing)
+ iconSize = getDimension(R.styleable.ExpandButton_iconSize, iconSize.toFloat()).toInt()
+ iconTextSpacing = getDimension(R.styleable.ExpandButton_iconTextSpacing, iconTextSpacing)
+ expandedTextSize = getDimension(R.styleable.ExpandButton_expandedTextSize, defaultTextSize)
+ } finally {
+ recycle()
+ }
+ }
+
+ // 璁剧疆鍒濆鏂囨湰鍜屽搴�
+ if (collapsedText.isNotEmpty()) {
+ text = collapsedText
+ post {
+ // 纭繚鍒濆瀹藉害涓烘敹璧风姸鎬佺殑瀹藉害
+ layoutParams = layoutParams.apply {
+ width = paint.measureText(collapsedText).toInt() + paddingLeft + paddingRight
+ }
+ }
+ }
+
+ // 淇敼瑙︽懜浜嬩欢澶勭悊
+ setOnTouchListener(null) // 绉婚櫎鍘熸湁鐨勮Е鎽哥洃鍚櫒
+
+ // 绉婚櫎鍘熸湁鐨勭偣鍑荤洃鍚櫒
+ setOnClickListener(null)
+
+ // 璁剧疆宸﹁竟璺濓紝涓哄浘鏍囩暀鍑虹┖闂�
+ compoundDrawablePadding = triangleMargin.toInt()
+ setPadding(
+ (16 * context.resources.displayMetrics.density + triangleMargin).toInt(), // 宸﹁竟璺濆鍔狅紝涓哄浘鏍囩暀绌洪棿
+ paddingTop,
+ paddingRight,
+ paddingBottom
+ )
+
+ // 璁剧疆鍗曡鏄剧ず锛岄槻姝㈤珮搴﹀彉鍖�
+ maxLines = if (isExpanded) Int.MAX_VALUE else 1
+ isSingleLine = !isExpanded
+
+ // 璁剧疆鏂囧瓧鍨傜洿灞呬腑
+ gravity = Gravity.CENTER_VERTICAL
+
+ // 璁剧疆榛樿鐨勫唴杈硅窛
+ val defaultPadding = (8 * context.resources.displayMetrics.density).toInt()
+ setPadding(
+ (16 * context.resources.displayMetrics.density + triangleMargin).toInt(), // 宸﹁竟璺濆鍔狅紝涓哄浘鏍囩暀绌洪棿
+ defaultPadding, // 涓婅竟璺�
+ defaultPadding, // 鍙宠竟璺�
+ defaultPadding // 涓嬭竟璺�
+ )
+ }
+
+ override fun onMeasure(widthMeasureSpec: Int, heightMeasureSpec: Int) {
+ super.onMeasure(widthMeasureSpec, heightMeasureSpec)
+
+ if (isExpanded) {
+ // 灞曞紑鐘舵�佷笅鐨勯珮搴﹁绠�
+ val desiredHeight = legendItemHeight + paddingTop + paddingBottom
+ setMeasuredDimension(measuredWidth, desiredHeight)
+ }
+ }
+
+ override fun onDraw(canvas: Canvas) {
+ // 缁樺埗灞曞紑/鏀惰捣鍥炬爣
+ drawTriangle(canvas)
+
+ if (!isExpanded) {
+ // 鏀惰捣鐘舵�佷娇鐢ㄩ粯璁ゅ瓧浣撳ぇ灏�
+ paint.textSize = defaultTextSize
+ super.onDraw(canvas)
+ return
+ }
+
+ // 灞曞紑鐘舵�佷娇鐢ㄥ睍寮�鍚庣殑瀛椾綋澶у皬
+ paint.textSize = expandedTextSize
+
+ // 璁＄畻鎵�鏈夊浘渚嬮」涓渶瀹界殑瀹藉害
+ val maxWidth = legendItems.maxOf { item ->
+ maxOf(paint.measureText(item.description), iconSize.toFloat())
+ }
+
+ // 璁＄畻鎬诲搴︼紙娣诲姞棣栧熬鐨勮竟璺濓級
+ val totalWidth = legendItems.size * maxWidth +
+ (legendItems.size + 1) * itemSpacing // 淇敼杩欓噷锛屾坊鍔犱竴涓澶栫殑闂磋窛
+
+ // 璁＄畻璧峰x鍧愭爣锛屼娇鏁翠綋姘村钩灞呬腑
+ var x = (width - totalWidth) / 2 + itemSpacing // 娣诲姞璧峰杈硅窛
+
+ // 璁＄畻鍨傜洿灞呬腑鐨剏鍧愭爣锛岃�冭檻涓婁笅杈硅窛
+ val centerY = height / 2f
+
+ legendItems.forEachIndexed { index, item ->
+ // 璁＄畻褰撳墠鍥句緥椤圭殑璧峰浣嶇疆锛堢Щ闄ndex > 0鐨勫垽鏂級
+ val itemStartX = x
+
+ // 璁＄畻鍥炬爣鐨勬按骞充綅缃紙灞呬腑浜庡浘渚嬮」锛�
+ val iconLeft = itemStartX + (maxWidth - iconSize) / 2
+
+ // 璁＄畻鏂囧瓧鐨勪綅缃�
+ val textWidth = paint.measureText(item.description)
+ val textX = itemStartX + (maxWidth - textWidth) / 2
+
+ // 缁樺埗鍥炬爣锛屾牴鎹�変腑鐘舵�侀�夋嫨涓嶅悓鐨勫浘鏍�
+ val iconTop = paddingTop + (height - legendItemHeight) / 2
+ val currentIcon = if (item.isSelected) item.selectedIcon else item.unselectedIcon
+ currentIcon.setBounds(
+ iconLeft.toInt(),
+ iconTop.toInt(),
+ (iconLeft + iconSize).toInt(),
+ (iconTop + iconSize).toInt()
+ )
+ currentIcon.draw(canvas)
+
+ // 缁樺埗鏂囧瓧锛屾牴鎹�変腑鐘舵�佷娇鐢ㄤ笉鍚岀殑棰滆壊
+ paint.color = if (item.isSelected)
+ currentTextColor
+ else
+ 0xFF999999.toInt() // 鐏拌壊
+ val textY = iconTop + iconSize + iconTextSpacing - paint.ascent()
+ canvas.drawText(item.description, textX, textY, paint)
+
+ // 鏇存柊涓嬩竴涓浘渚嬮」鐨勮捣濮嬩綅缃�
+ x = itemStartX + maxWidth + itemSpacing
+ }
+
+ // 鎭㈠鐢荤瑪棰滆壊
+ paint.color = currentTextColor
+ }
+
+ // 灏嗗師鏉ョ殑onDraw涓殑涓夎褰㈢粯鍒堕�昏緫鎻愬彇鍑烘潵
+ private fun drawTriangle(canvas: Canvas) {
+ canvas.save()
+
+ val iconSize = triangleDrawable.intrinsicWidth
+ val iconLeft = paddingLeft - iconSize - compoundDrawablePadding
+ val iconTop = (height - iconSize) / 2
+
+ triangleDrawable.setBounds(
+ iconLeft,
+ iconTop,
+ iconLeft + iconSize,
+ iconTop + iconSize
+ )
+
+ canvas.rotate(
+ triangleRotation,
+ (iconLeft + iconSize / 2).toFloat(),
+ (iconTop + iconSize / 2).toFloat()
+ )
+
+ triangleDrawable.draw(canvas)
+
+ canvas.restore()
+ }
+
+ /**
+ * 璁剧疆瀛楅棿璺�
+ * @param spacing 闂磋窛鍊硷紙鍍忕礌锛�
+ */
+ fun setCustomLetterSpacing(spacing: Float) {
+ this.customLetterSpacing = spacing
+ if (isExpanded) {
+ setExpandedClickableText()
+ }
+ }
+
+ /**
+ * 璁剧疆灞曞紑鍜屾敹璧锋椂鏄剧ず鐨勬枃瀛�
+ * @param expanded 灞曞紑鏃舵樉绀虹殑瀹屾暣鏂囧瓧
+ * @param collapsed 鏀惰捣鏃舵樉绀虹殑鍗曚釜瀛楃
+ */
+ fun setExpandText(expanded: String, collapsed: String) {
+ this.expandedText = expanded
+ this.collapsedText = collapsed
+ text = collapsedText
+ }
+
+ /**
+ * 璁剧疆鍗曚釜瀛楃鐐瑰嚮鐩戝惉鍣�
+ * @param listener 鐐瑰嚮鍥炶皟锛屽弬鏁颁负琚偣鍑荤殑瀛楃鍜屼綅缃�
+ * char: 琚偣鍑荤殑瀛楃
+ * position: 瀛楃鍦ㄦ枃鏈腑鐨勪綅缃紙浠�0寮�濮嬶級
+ */
+ fun setOnCharClickListener(listener: (char: Char, position: Int) -> Unit) {
+ this.onCharClickListener = listener
+ }
+
+ /**
+ * 璁剧疆灞曞紑/鏀惰捣鍔ㄧ敾鐨勬寔缁椂闂�
+ * @param duration 鍔ㄧ敾鎸佺画鏃堕棿锛堟绉掞級
+ */
+ fun setAnimationDuration(duration: Long) {
+ this.animationDuration = duration
+ }
+
+ /**
+ * 鍒囨崲灞曞紑/鏀惰捣鐘舵��
+ */
+ private fun toggleExpand() {
+ isExpanded = !isExpanded
+
+ // 璁＄畻鏀惰捣鍜屽睍寮�鐘舵�佺殑瀹藉害
+ val collapsedWidth = run {
+ paint.textSize = defaultTextSize
+ val width = paint.measureText(collapsedText).toInt() + paddingLeft + paddingRight
+ paint.textSize = if (isExpanded) expandedTextSize else defaultTextSize
+ width
+ }
+
+ val expandedWidth = calculateExpandedWidth()
+
+ // 鍒涘缓瀹藉害鍔ㄧ敾
+ ValueAnimator.ofInt(
+ if (isExpanded) collapsedWidth else expandedWidth,
+ if (isExpanded) expandedWidth else collapsedWidth
+ ).apply {
+ duration = animationDuration
+ addUpdateListener { animator ->
+ layoutParams = layoutParams.apply {
+ width = animator.animatedValue as Int
+ }
+ requestLayout()
+ }
+ start()
+ }
+
+ // 鍒涘缓鍥炬爣鏃嬭浆鍔ㄧ敾
+ ValueAnimator.ofFloat(
+ if (isExpanded) 0f else 180f,
+ if (isExpanded) 180f else 0f
+ ).apply {
+ duration = animationDuration
+ addUpdateListener { animator ->
+ triangleRotation = animator.animatedValue as Float
+ invalidate()
+ }
+ start()
+ }
+
+ // 鏇存柊鏂囨湰鍜屽瓧浣撳ぇ灏�
+ if (isExpanded) {
+ paint.textSize = expandedTextSize
+ } else {
+ text = collapsedText
+ paint.textSize = defaultTextSize
+ setTextSize(android.util.TypedValue.COMPLEX_UNIT_PX, defaultTextSize)
+ }
+
+ invalidate()
+ }
+
+ /**
+ * 璁＄畻灞曞紑鍚庣殑鎬诲搴�
+ */
+ private fun calculateExpandedWidth(): Int {
+ // 涓存椂淇濆瓨褰撳墠瀛椾綋澶у皬
+ val currentTextSize = paint.textSize
+ // 璁剧疆涓哄睍寮�鐘舵�佺殑瀛椾綋澶у皬
+ paint.textSize = expandedTextSize
+
+ try {
+ // 璁＄畻鎵�鏈夊浘渚嬮」涓渶瀹界殑瀹藉害
+ val maxWidth = legendItems.maxOf { item ->
+ maxOf(paint.measureText(item.description), iconSize.toFloat())
+ }
+
+ // 璁＄畻鎬诲搴� = 鎵�鏈夊浘渚嬮」鐨勫搴� + 鎵�鏈夐棿璺濓紙鍖呮嫭棣栧熬锛� + 宸﹀彸鍐呰竟璺�
+ return (legendItems.size * maxWidth +
+ (legendItems.size + 1) * itemSpacing +
+ paddingLeft + paddingRight).toInt()
+ } finally {
+ // 鎭㈠鍘熸潵鐨勫瓧浣撳ぇ灏�
+ paint.textSize = currentTextSize
+ }
+ }
+
+ /**
+ * 璁剧疆灞曞紑鍚庣殑鍙偣鍑绘枃鏈�
+ */
+ private fun setExpandedClickableText() {
+ val builder = SpannableStringBuilder()
+
+ // 璁＄畻鎵�鏈夊浘渚嬮」涓渶瀹界殑瀹藉害
+ val maxWidth = legendItems.maxOf { item ->
+ maxOf(paint.measureText(item.description), iconSize.toFloat())
+ }
+
+ // 璁＄畻鎬诲搴�
+ val totalWidth = legendItems.size * maxWidth +
+ (legendItems.size - 1) * itemSpacing
+
+ // 璁＄畻鏁翠綋姘村钩灞呬腑闇�瑕佺殑璧峰绌烘牸
+ val startPadding = ((width - totalWidth) / 2 / paint.measureText(" ")).toInt()
+ if (startPadding > 0) {
+ builder.append(" ".repeat(startPadding))
+ }
+
+ // 娣诲姞鍨傜洿绌洪棿锛屼负鍥炬爣棰勭暀浣嶇疆
+ val verticalSpaces = ((iconSize + iconTextSpacing) / paint.textSize).toInt()
+ builder.append("\n".repeat(verticalSpaces))
+
+ legendItems.forEachIndexed { index, item ->
+ if (index > 0) {
+ // 鍦ㄥ浘渚嬮」涔嬮棿娣诲姞姘村钩闂磋窛
+ builder.append(" ".repeat((itemSpacing / paint.measureText(" ")).toInt()))
+ }
+
+ // 璁＄畻姘村钩灞呬腑鎵�闇�鐨勭┖鏍兼暟
+ val textWidth = paint.measureText(item.description)
+ val paddingSpaces = ((maxWidth - textWidth) / 2 / paint.measureText(" ")).toInt()
+
+ // 娣诲姞宸︿晶绌烘牸瀹炵幇灞呬腑
+ if (paddingSpaces > 0) {
+ builder.append(" ".repeat(paddingSpaces))
+ }
+
+ // 娣诲姞鎻忚堪鏂囨湰
+ val startPosition = builder.length
+ builder.append(item.description)
+
+ // 娣诲姞鍙充晶绌烘牸浠ョ‘淇濆搴︿竴鑷�
+ val remainingSpaces = ((maxWidth - textWidth) / paint.measureText(" ")).toInt() - paddingSpaces
+ if (remainingSpaces > 0) {
+ builder.append(" ".repeat(remainingSpaces))
+ }
+
+ // 涓烘枃瀛楄缃偣鍑讳簨浠�
+ val clickableSpan = object : ClickableSpan() {
+ override fun onClick(view: View) {
+ onCharClickListener?.invoke(item.description[0], index)
+ }
+
+ override fun updateDrawState(ds: android.text.TextPaint) {
+ super.updateDrawState(ds)
+ ds.isUnderlineText = false
+ ds.color = currentTextColor
+ }
+ }
+
+ builder.setSpan(
+ clickableSpan,
+ startPosition,
+ startPosition + item.description.length,
+ Spannable.SPAN_EXCLUSIVE_EXCLUSIVE
+ )
+ }
+
+ // 璁剧疆鏂囨湰瀵归綈鏂瑰紡涓哄眳涓�
+ gravity = Gravity.CENTER
+
+ text = builder
+ movementMethod = android.text.method.LinkMovementMethod.getInstance()
+ }
+
+ /**
+ * 鍒ゆ柇鐐瑰嚮鏄惁鍦ㄤ笁瑙掑舰鍥炬爣鍖哄煙鍐�
+ */
+ private fun isClickOnTriangle(x: Float): Boolean {
+ val iconSize = triangleDrawable.intrinsicWidth
+ val iconLeft = paddingLeft - iconSize - compoundDrawablePadding
+
+ // 鎵╁ぇ鐐瑰嚮鍖哄煙锛氬乏鍙冲悇澧炲姞 triangleClickPadding
+ return x <= (paddingLeft + triangleClickPadding) &&
+ x >= (iconLeft - triangleClickPadding)
+ }
+
+ /**
+ * 璁剧疆涓夎褰㈠浘鏍囦笌鏂囧瓧鐨勯棿璺�
+ * @param margin 闂磋窛鍊硷紙鍍忕礌锛�
+ */
+ fun setTriangleMargin(margin: Float) {
+ this.triangleMargin = margin
+ compoundDrawablePadding = margin.toInt()
+ setPadding(
+ (16 * context.resources.displayMetrics.density + margin).toInt(),
+ paddingTop,
+ paddingRight,
+ paddingBottom
+ )
+ }
+
+ /**
+ * 璁剧疆鎸夐挳鐨勫敮涓�鏍囪瘑绗�
+ * @param id 鏍囪瘑绗�
+ */
+ fun setButtonId(id: String) {
+ this.buttonId = id
+ // 鍔犺浇淇濆瓨鐨勭姸鎬�
+
+ }
+ /**
+ * 璁剧疆鍥句緥鍐呭
+ */
+ @JvmName("setLegendsList")
+ fun setLegends(items: List<Quadruple<Drawable, Drawable, String, Boolean>>) {
+ legendItems = items.map { (selectedIcon, unselectedIcon, description, isSelected) ->
+ selectedIcon.setBounds(0, 0, iconSize, iconSize)
+ unselectedIcon.setBounds(0, 0, iconSize, iconSize)
+ LegendItem(selectedIcon, unselectedIcon, description, isSelected)
+ }
+
+ if (!isExpanded) {
+ text = collapsedText
+ } else {
+ invalidate()
+ }
+ requestLayout()
+ }
+ // 娣诲姞涓�涓� Java 鍙嬪ソ鐨勬柟娉�
+ @JvmName("setLegendsArray")
+ fun setLegends(vararg items: Quadruple<Drawable, Drawable, String, Boolean>) {
+ setLegends(items.toList())
+ }
+ // 娣诲姞涓�涓暟鎹被鏉ヨ〃绀哄洓鍏冪粍
+ data class Quadruple<A, B, C, D>(
+ val first: A,
+ val second: B,
+ val third: C,
+ val fourth: D
+ )
+ // 娣诲姞涓�涓究鎹风殑鎵╁睍鍑芥暟鏉ュ垱寤� Quadruple
+ fun <A, B, C, D> quadrupleOf(first: A, second: B, third: C, fourth: D): Quadruple<A, B, C, D> {
+ return Quadruple(first, second, third, fourth)
+ }
+ /**
+ * 娣诲姞璁剧疆鐩戝惉鍣ㄧ殑鏂规硶
+ */
+ fun setOnLegendItemClickListener(listener: OnLegendItemClickListener) {
+ legendItemClickListener = listener
+ }
+ /**
+ * 澶勭悊瑙︽懜浜嬩欢
+ */
+ override fun onTouchEvent(event: MotionEvent): Boolean {
+ when (event.action) {
+ MotionEvent.ACTION_DOWN -> {
+ // 妫�鏌ョ偣鍑绘槸鍚﹀湪涓夎褰㈠浘鏍囧尯鍩熷唴
+ if (isClickOnTriangle(event.x)) {
+ toggleExpand()
+ return true
+ }
+
+ // 濡傛灉鏄睍寮�鐘舵�侊紝妫�鏌ユ槸鍚︾偣鍑讳簡鍥句緥椤�
+ if (isExpanded) {
+ val clickedIndex = getClickedItemIndex(event.x, event.y)
+ if (clickedIndex != -1) {
+ toggleItemSelection(clickedIndex)
+ return true
+ }
+ } else if (!isExpanded && event.x > paddingLeft) {
+ // 鍦ㄦ敹璧风姸鎬佷笅锛岀偣鍑婚潪涓夎褰㈠尯鍩熶篃灞曞紑
+ toggleExpand()
+ return true
+ }
+ }
+ }
+ return super.onTouchEvent(event)
+ }
+ /**
+ * 鑾峰彇鐐瑰嚮浣嶇疆瀵瑰簲鐨勫浘渚嬮」绱㈠紩
+ */
+ private fun getClickedItemIndex(x: Float, y: Float): Int {
+ if (!isExpanded) return -1
+ val maxWidth = legendItems.maxOf { item ->
+ maxOf(paint.measureText(item.description), iconSize.toFloat())
+ }
+
+ val totalWidth = legendItems.size * maxWidth +
+ (legendItems.size - 1) * itemSpacing
+
+ val startX = (width - totalWidth) / 2
+ val iconTop = paddingTop + (height - legendItemHeight) / 2
+ val iconBottom = iconTop + legendItemHeight
+ // 妫�鏌ュ瀭鐩存柟鍚戞槸鍚﹀湪鍥句緥椤硅寖鍥村唴
+ if (y < iconTop || y > iconBottom) return -1
+
+ // 妫�鏌ユ按骞虫柟鍚戠偣鍑荤殑鏄摢涓浘渚嬮」
+ legendItems.forEachIndexed { index, _ ->
+ val itemStartX = startX + index * (maxWidth + itemSpacing)
+ val itemEndX = itemStartX + maxWidth
+ if (x >= itemStartX && x <= itemEndX) {
+ return index
+ }
+ }
+ return -1
+ }
+
+ /**
+ * 鍒囨崲鍥句緥椤圭殑閫変腑鐘舵��
+ */
+ private fun toggleItemSelection(index: Int) {
+ if (index < 0 || index >= legendItems.size) return
+
+ legendItems[index].isSelected = !legendItems[index].isSelected
+ legendItemClickListener?.onLegendItemClick(
+ index,
+ legendItems[index].isSelected
+ )
+
+ invalidate()
+ }
+
+ /**
+ * 璁剧疆灞曞紑鍚庣殑瀛椾綋澶у皬
+ * @param size 瀛椾綋澶у皬锛堝儚绱狅級
+ */
+ fun setExpandedTextSize(size: Float) {
+ this.expandedTextSize = size
+ if (isExpanded) {
+ invalidate()
+ }
+ }
+
+ /**
+ * 璁剧疆灞曞紑鍚庣殑瀛椾綋澶у皬锛圫P锛�
+ * @param sp 瀛椾綋澶у皬锛圫P锛�
+ */
+ fun setExpandedTextSizeSp(sp: Float) {
+ setExpandedTextSize(sp * context.resources.displayMetrics.scaledDensity)
+ }
}
\ No newline at end of file
--
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