android - 在 EditText 中链接以检测标签

Question

我正在使用 Linkify 检测 TextView 中的主题标签，它工作正常，但我想在 EditText 控件中实现它。

这是我在 TextView 中使用 Linkify 的方式:

Pattern tagMatcher = Pattern.compile(("#([ء-يA-Za-z0-9_-]+)"));
String newActivityURL = "content://com.hashtag.jojo/";

Pattern urlPattern = Patterns.WEB_URL;

TransformFilter transformFilter = new TransformFilter() {
    // skip the first character to filter out '@'
    public String transformUrl(final Matcher match, String url) {
        return match.group(0);
    }
};
Linkify.addLinks(TextView, Linkify.ALL);
Linkify.addLinks(TextView, tagMatcher,newActivityURL, null,transformFilter);

如何将其应用于 EditText？

Answer 1

只需使用 EditText 而不是 TextView，因为 EditText 是从 TextView 扩展而来的。它一定工作正常。

小例子:

EditText editText1 = (EditText) findViewById(R.id.editText1);
editText1.setText("http://http://www.dzone.com/");
Linkify.addLinks(editText1 , Linkify.WEB_URLS);

如果您想实时检查它，只需执行以下操作:

editText1.addTextChangedListener(new TextWatcher() {

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
        Linkify.addLinks(editText1 , Linkify.WEB_URLS);
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
    }

    @Override
    public void afterTextChanged(Editable s) {
    }
});

已更新

final TransformFilter filter = new TransformFilter() {
    public final String transformUrl(final Matcher match, String url) {
        return match.group();
    }
};

final Pattern hashtagPattern = Pattern.compile("#([ء-يA-Za-z0-9_-]+)");
final String hashtagScheme = "content://com.hashtag.jojo/";

final Pattern urlPattern = Patterns.WEB_URL;

editText1.addTextChangedListener(new TextWatcher() {

    @Override
    public void onTextChanged(CharSequence s, int start, int before, int count) {
    }

    @Override
    public void beforeTextChanged(CharSequence s, int start, int count, int after) {
        System.out.println(count);
    }

    @Override
    public void afterTextChanged(Editable s) {
        Linkify.addLinks(s, hashtagPattern, hashtagScheme, null, filter);
        Linkify.addLinks(s, urlPattern, null, null, filter);
    }
});