Question

我正在使用Linkify来检测TextView中的主题标签并且它工作正常，但我想在EditText控件内实现它。

这是我在Linkify中使用TextView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);

如何将此应用于EditText？

Answer 1

使用EditText而不是TextView执行操作，因为EditText从TextView扩展。它必须工作正常。

小例子：

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

如果你想实时检查它，就这样做：

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) {
    }
});

<强>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);
    }
});

在EditText中链接以检测Hashtags

1 个答案: