我有文本“Android是一个软件堆栈”。在这个文本中,我想设置“堆栈”文本为可点击。所以,如果你点击它,它将重定向到一个新的活动(不在浏览器中)。
我试过了,但没有找到解决办法。
我有文本“Android是一个软件堆栈”。在这个文本中,我想设置“堆栈”文本为可点击。所以,如果你点击它,它将重定向到一个新的活动(不在浏览器中)。
我试过了,但没有找到解决办法。
当前回答
这是一个Kotlin方法,使TextView的部分可点击:
private fun makeTextLink(textView: TextView, str: String, underlined: Boolean, color: Int?, action: (() -> Unit)? = null) {
val spannableString = SpannableString(textView.text)
val textColor = color ?: textView.currentTextColor
val clickableSpan = object : ClickableSpan() {
override fun onClick(textView: View) {
action?.invoke()
}
override fun updateDrawState(drawState: TextPaint) {
super.updateDrawState(drawState)
drawState.isUnderlineText = underlined
drawState.color = textColor
}
}
val index = spannableString.indexOf(str)
spannableString.setSpan(clickableSpan, index, index + str.length, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
textView.text = spannableString
textView.movementMethod = LinkMovementMethod.getInstance()
textView.highlightColor = Color.TRANSPARENT
}
它可以被多次调用,在TextView中创建几个链接:
makeTextLink(myTextView, str, false, Color.RED, action = { Log.d("onClick", "link") })
makeTextLink(myTextView, str1, true, null, action = { Log.d("onClick", "link1") })
其他回答
这是一个kotlin扩展(不工作,如果文本重复)
textView.makeTextClickable(
contentText = "Hello world",
clickableText = "world",
isBoldText = true,
onClick = {
openPageInBrowser(BuildConfig.PRIVACY_POLICY_URL)
}
)
internal fun TextView.makeTextClickable(
contentText: String,
clickableText: String,
onClick: () -> Unit,
isUnderlineText: Boolean = false,
isBoldText: Boolean = false
) {
val spannableString = SpannableString(contentText)
val clickableSpan = object : ClickableSpan() {
override fun onClick(widget: View) {
onClick()
}
override fun updateDrawState(ds: TextPaint) {
super.updateDrawState(ds)
ds.isUnderlineText = isUnderlineText
ds.isFakeBoldText = isBoldText
}
}
val clickableTextStartIndex = text.indexOf(clickableText)
val clickableTextEndIndex = clickableTextStartIndex + clickableText.length
spannableString.setSpan(
clickableSpan,
clickableTextStartIndex,
clickableTextEndIndex,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
)
this.text = spannableString
this.movementMethod = LinkMovementMethod.getInstance()
}
kotlin中更通用的答案
fun setClickableText(view: TextView, firstSpan: String, secondSpan: String) {
val context = view.context
val builder = SpannableStringBuilder()
val unClickableSpan = SpannableString(firstSpan)
val span = SpannableString(" "+secondSpan)
builder.append(unClickableSpan);
val clickableSpan: ClickableSpan = object : ClickableSpan() {
override fun onClick(textView: View) {
val intent = Intent(context, HomeActivity::class.java)
context.startActivity(intent)
}
override fun updateDrawState(ds: TextPaint) {
super.updateDrawState(ds)
ds.isUnderlineText = true
ds.setTypeface(Typeface.create(Typeface.DEFAULT, Typeface.ITALIC));
}
}
builder.append(span);
builder.setSpan(clickableSpan, firstSpan.length, firstSpan.length+secondSpan.length+1, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
view.setText(builder,TextView.BufferType.SPANNABLE)
view.setMovementMethod(LinkMovementMethod.getInstance());
}
Phan Van Linh回答的版本。
请注意它有一些小的改动。
fun makeLinks(textView: TextView, links: Array<String>, clickableSpans: Array<ClickableSpan>) {
val spannableString = SpannableString(textView.text)
for (i in links.indices) {
val clickableSpan = clickableSpans[i]
val link = links[i]
val startIndexOfLink = textView.text.indexOf(link)
spannableString.setSpan(clickableSpan, startIndexOfLink, startIndexOfLink + link.length,
Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
}
textView.movementMethod = LinkMovementMethod.getInstance()
textView.setText(spannableString, TextView.BufferType.SPANNABLE)
}
fun setupClickableTextView() {
val termsOfServicesClick = object : ClickableSpan() {
override fun onClick(p0: View?) {
Toast.makeText(applicationContext, "ToS clicked", Toast.LENGTH_SHORT).show()
}
}
val privacyPolicyClick = object : ClickableSpan() {
override fun onClick(p0: View?) {
Toast.makeText(applicationContext, "PP clicked", Toast.LENGTH_SHORT).show()
}
}
makeLinks(termsTextView, arrayOf("terms", "privacy policy"), arrayOf(termsOfServicesClick, privacyPolicyClick))
}
对于那些正在寻找Kotlin解决方案的人来说,这里是对我有用的:
private fun setupTermsAndConditions() {
val termsAndConditions = resources.getString(R.string.terms_and_conditions)
val spannableString = SpannableString(termsAndConditions)
val clickableSpan = object : ClickableSpan() {
override fun onClick(widget: View) {
if (checkForWifiAndMobileInternet()) {
// binding.viewModel!!.openTermsAndConditions()
showToast("Good, open the link!!!")
} else {
showToast("Cannot open this file because of internet connection!")
}
}
override fun updateDrawState(textPaint : TextPaint) {
super.updateDrawState(textPaint)
textPaint.color = resources.getColor(R.color.colorGrey)
textPaint.isFakeBoldText = true
}
}
spannableString.setSpan(clickableSpan, 34, 86, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
binding.tvTermsAndConditions.text = spannableString
binding.tvTermsAndConditions.movementMethod = LinkMovementMethod.getInstance()
binding.tvTermsAndConditions.setHighlightColor(Color.TRANSPARENT);
}
大胆的,
mySpannable.setSpan(new StyleSpan(Typeface.BOLD),termStart,termStop,Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);