Android:将 onClickListener 设置为 TextView 中的一部分文本 - 问题 [英] Android: Setting onClickListener to a Part of text in a TextView - Issue
问题描述
我正在尝试识别 TextView 中的主题标签并使它们可点击,以便在用户点击主题标签时我可以将用户带到另一个视图.
I am trying to recognise hashtags in my TextView and make them clickable such that I can take the user to another View when they click on the Hashtag.
我设法使用模式匹配识别 TextView 中的 Hashtags,它们在运行时显示为彩色.但是,我需要使 Hashtag 可点击.
I managed to identify Hashtags in the TextView using Pattern Matching and they appear colored in Runtime. However, I need to make the Hashtag clickable.
这是我的代码:
SpannableString hashText = new SpannableString("I just watched #StarWars and it was incredible. It's a #MustWatch #StarWars");
Matcher matcher = Pattern.compile("#([A-Za-z0-9_-]+)").matcher(hashText);
while (matcher.find())
{
hashText.setSpan(new ForegroundColorSpan(Color.parseColor("#000763")), matcher.start(), matcher.end(), 0);
String tag = matcher.group(0);
}
holder.caption.setText(hashText);
//I need to set an OnClick listener to all the Hashtags recognised
使用上述相同的解决方案,我如何将 onclick 侦听器添加到每个主题标签?
Using the same solution above, how can I add onclick listeners to every hashtag?
推荐答案
有一种方法......看到你的问题后,我只是在谷歌上搜索......我找到了这个,我希望它会起作用......
there is a way... after seeing your question i was just googling .. and i found this, i hope it will work...
1.你可以使用 android.text.style.ClickableSpan
链接
SpannableString ss = new SpannableString("Hello World");
ClickableSpan span1 = new ClickableSpan() {
@Override
public void onClick(View textView) {
// do some thing
}
};
ClickableSpan span2 = new ClickableSpan() {
@Override
public void onClick(View textView) {
// do another thing
}
};
ss.setSpan(span1, 0, 4, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
ss.setSpan(span2, 6, 10, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);
textView.setText(ss);
textView.setMovementMethod(LinkMovementMethod.getInstance());
另一种方式.. 链接一个>
TextView myTextView = new TextView(this);
String myString = "Some text [clickable]";
int i1 = myString.indexOf("[");
int i2 = myString.indexOf("]");
myTextView.setMovementMethod(LinkMovementMethod.getInstance());
myTextView.setText(myString, BufferType.SPANNABLE);
Spannable mySpannable = (Spannable)myTextView.getText();
ClickableSpan myClickableSpan = new ClickableSpan()
{
@Override
public void onClick(View widget) { /* do something */ }
};
mySpannable.setSpan(myClickableSpan, i1, i2 + 1, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
刚刚从这些链接复制的答案...
answer just copied from those link...
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