安卓ClickableSpan不调用onClick
安卓ClickableSpan不调用onClick
提问于 2011-12-27 13:02:05
我正在创建一个ClickableSpan，它正确地显示了正确的文本下划线。但是，点击没有注册。你知道我做错了什么吗？
谢谢，维克多
以下是代码片段：
view.setText("This is a test");
ClickableSpan span = new ClickableSpan() {
@Override
public void onClick(View widget) {
log("Clicked");
}
};
view.getText().setSpan(span, 0, view.getText().length(), Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);回答 4
Stack Overflow用户
回答已采纳
发布于 2011-12-29 07:30:17
您是否尝试过在包含跨度的TextView上设置MovementMethod？你需要这样做才能让点击工作...
tv.setMovementMethod(LinkMovementMethod.getInstance());Stack Overflow用户
发布于 2018-10-03 19:49:56
Kotlin util函数：
fun setClickable(textView: TextView, subString: String, handler: () -> Unit, drawUnderline: Boolean = false) {
val text = textView.text
val start = text.indexOf(subString)
val end = start + subString.length
val span = SpannableString(text)
span.setSpan(ClickHandler(handler, drawUnderline), start, end, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE)
textView.linksClickable = true
textView.isClickable = true
textView.movementMethod = LinkMovementMethod.getInstance()
textView.text = span
}
class ClickHandler(
private val handler: () -> Unit,
private val drawUnderline: Boolean
) : ClickableSpan() {
override fun onClick(widget: View?) {
handler()
}
override fun updateDrawState(ds: TextPaint?) {
if (drawUnderline) {
super.updateDrawState(ds)
} else {
ds?.isUnderlineText = false
}
}
}用法：
Utils.setClickable(textView, subString, {handleClick()})Stack Overflow用户
发布于 2017-07-31 13:01:29
经过反复试验，设置tv.setMovementMethod(LinkMovementMethod.getInstance());的顺序确实很重要。
这是我的完整代码
String stringTerms = getString(R.string.sign_up_terms);
Spannable spannable = new SpannableString(stringTerms);
int indexTermsStart = stringTerms.indexOf("Terms");
int indexTermsEnd = indexTermsStart + 18;
spannable.setSpan(new UnderlineSpan(), indexTermsStart, indexTermsEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
spannable.setSpan(new ForegroundColorSpan(getColor(R.color.theme)), indexTermsStart, indexTermsEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
spannable.setSpan(new ClickableSpan() {
@Override
public void onClick(View widget) {
Log.d(TAG, "TODO onClick.. Terms and Condition");
}
}, indexTermsStart, indexTermsEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
int indexPolicyStart = stringTerms.indexOf("Privacy");
int indexPolicyEnd = indexPolicyStart + 14;
spannable.setSpan(new UnderlineSpan(), indexPolicyStart, indexPolicyEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
spannable.setSpan(new ForegroundColorSpan(getColor(R.color.theme)), indexPolicyStart, indexPolicyEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
spannable.setSpan(new ClickableSpan() {
@Override
public void onClick(View widget) {
Log.d(TAG, "TODO onClick.. Privacy Policy");
}
}, indexPolicyStart, indexPolicyEnd, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
TextView textViewTerms = (TextView) findViewById(R.id.sign_up_terms_text);
textViewTerms.setText(spannable);
textViewTerms.setClickable(true);
textViewTerms.setMovementMethod(LinkMovementMethod.getInstance());页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/8641343
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