1+ package com.flyjingfish.formattextview
2+
3+ import android.R
4+ import android.content.Context
5+ import android.text.Html
6+ import android.text.SpannableStringBuilder
7+ import android.text.TextPaint
8+ import android.text.method.LinkMovementMethod
9+ import android.text.style.ClickableSpan
10+ import android.text.style.URLSpan
11+ import android.text.util.Linkify
12+ import android.util.AttributeSet
13+ import android.view.View
14+ import androidx.annotation.StringRes
15+ import androidx.appcompat.widget.AppCompatTextView
16+
17+ class FormatTextView :AppCompatTextView {
18+
19+ private var onFormatClickListener: OnFormatClickListener ? = null
20+ var isClickSpanItem = false
21+
22+ constructor (context: Context ? ) : super (context)
23+ constructor (context: Context ? , attrs: AttributeSet ? ) : super (context, attrs)
24+ constructor (context: Context ? , attrs: AttributeSet ? , defStyleAttr: Int ) : super (
25+ context,
26+ attrs,
27+ defStyleAttr
28+ )
29+
30+ fun setFormatTextBean (@StringRes formatTextRes : Int , vararg args : FormatText ? ) {
31+ setFormatTextBean(resources.getString(formatTextRes), * args)
32+ }
33+
34+ fun setFormatTextBean (formatTextValue : String , vararg args : FormatText ? ) {
35+ val strings = arrayOfNulls<String >(args.size)
36+ val colors = IntArray (args.size)
37+ val bolds = BooleanArray (args.size)
38+ val underlines = BooleanArray (args.size)
39+ for (i in 0 until args.size) {
40+ if (args[i] != null ){
41+ if (args[i]!! .intValue != 0 ) {
42+ strings[i] = resources.getString(args[i]!! .intValue)
43+ } else {
44+ strings[i] = args[i]!! .strValue
45+ }
46+ colors[i] = args[i]!! .color
47+ bolds[i] = args[i]!! .bold
48+ underlines[i] = args[i]!! .underline
49+ }
50+ }
51+ setFormatText(colors, bolds, underlines, formatTextValue, strings)
52+ }
53+
54+
55+ fun setFormatText (@StringRes formatTextRes : Int , vararg args : Int ) {
56+ setFormatText(resources.getString(formatTextRes), * args)
57+ }
58+
59+ fun setFormatText (formatTextValue : String , vararg args : Int ) {
60+ val formatTexts: Array <FormatText ?> = arrayOfNulls<FormatText >(args.size)
61+ for (i in 0 until args.size) {
62+ formatTexts[i] = FormatText (0 , false , false , args[i])
63+ }
64+ setFormatTextBean(formatTextValue, * formatTexts)
65+ }
66+
67+ fun setFormatText (@StringRes formatTextRes : Int , vararg args : String ) {
68+ setFormatText(resources.getString(formatTextRes), * args)
69+ }
70+
71+ fun setFormatText (formatTextValue : String , vararg args : String ) {
72+ val formatTexts: Array <FormatText ?> = arrayOfNulls<FormatText >(args.size)
73+ for (i in 0 until args.size) {
74+ formatTexts[i] = FormatText (0 , false , false , args[i])
75+ }
76+ setFormatTextBean(formatTextValue, * formatTexts)
77+ }
78+
79+
80+ private fun setFormatText (
81+ colors : IntArray ,
82+ bolds : BooleanArray ,
83+ underlines : BooleanArray ,
84+ @StringRes formatTextRes : Int ,
85+ args : Array <String ?>
86+ ) {
87+ setFormatText(colors, bolds, underlines, resources.getString(formatTextRes), args)
88+ }
89+
90+ private fun setFormatText (
91+ colors : IntArray ,
92+ bolds : BooleanArray ,
93+ underlines : BooleanArray ,
94+ formatTextValue : String ,
95+ args : Array <String ?>
96+ ) {
97+ val strings = arrayOfNulls<String >(args.size)
98+ for (i in args.indices) { // %1$s
99+ var start = " <a href=\" $i \" >"
100+ var end = " </a>"
101+ val value = " %" + (i + 1 ) + " \$ s"
102+ if (bolds[i]) {
103+ strings[i] = " <b>$value </b>"
104+ } else {
105+ strings[i] = value
106+ }
107+ strings[i] = start + strings[i] + end
108+ }
109+ val formatText = String .format(formatTextValue, * strings as Array <Any ?>)
110+ val showText = String .format(formatText, * args as Array <Any ?>)
111+ text = getClickableHtml(showText, colors, underlines)
112+ highlightColor = resources.getColor(R .color.transparent)
113+ autoLinkMask = Linkify .WEB_URLS
114+ }
115+
116+ private fun getClickableHtml (
117+ html : String ,
118+ colors : IntArray ,
119+ underlines : BooleanArray
120+ ): CharSequence? {
121+ val spannedHtml = Html .fromHtml(html)
122+ val clickableHtmlBuilder = SpannableStringBuilder (spannedHtml)
123+ val spans = clickableHtmlBuilder.getSpans(
124+ 0 , spannedHtml.length,
125+ URLSpan ::class .java
126+ )
127+ for (i in spans.indices) {
128+ val span = spans[i]
129+ setLinkClickable(clickableHtmlBuilder, span, colors[i], underlines[i])
130+ }
131+ return clickableHtmlBuilder
132+ }
133+
134+ private fun setLinkClickable (
135+ clickableHtmlBuilder : SpannableStringBuilder ,
136+ urlSpan : URLSpan ,
137+ color : Int ,
138+ underline : Boolean
139+ ) {
140+ val start = clickableHtmlBuilder.getSpanStart(urlSpan)
141+ val end = clickableHtmlBuilder.getSpanEnd(urlSpan)
142+ val flags = clickableHtmlBuilder.getSpanFlags(urlSpan)
143+ val clickableSpan: ClickableSpan = object : ClickableSpan () {
144+ override fun onClick (widget : View ) {
145+ val url = urlSpan.url
146+ onFormatClickListener?.onItemClick(url.toInt())
147+ isClickSpanItem = true
148+ }
149+
150+ override fun updateDrawState (ds : TextPaint ) {
151+ super .updateDrawState(ds)
152+ // 设置颜色
153+ if (color != 0 ) {
154+ ds.color = resources.getColor(color)
155+ } else {
156+ ds.color = currentTextColor
157+ }
158+ // 设置是否要下划线
159+ ds.isUnderlineText = underline
160+ }
161+ }
162+ clickableHtmlBuilder.setSpan(clickableSpan, start, end, flags)
163+ }
164+
165+
166+ override fun setOnClickListener (l : OnClickListener ? ) {
167+ // 为了处理ClickableSpan和View.OnClickListener点击事件冲突
168+ }
169+
170+ fun setOnFormatClickListener (onFormatClickListener : OnFormatClickListener ){
171+ movementMethod = LinkMovementMethod .getInstance()
172+ this .onFormatClickListener = onFormatClickListener
173+ super .setOnClickListener {
174+ if (! isClickSpanItem){
175+ this @FormatTextView.onFormatClickListener?.onNoItemClick(this @FormatTextView)
176+ }
177+ isClickSpanItem = false
178+ }
179+ }
180+
181+ }
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