Question

我想实现If和Else条件，以检查所选文本是否突出显示。我可以突出显示文本，但是不知道突出显示的文本要再次删除的if()条件。我搜索了很多，但没有得到明确的答案。这是我的代码：

private void highlightTextCondition() {
    int selectionStart = bodyText.getSelectionStart();
    int selectionEnd = bodyText.getSelectionEnd();
    if (selectionStart > selectionEnd) {
        int temp = selectionEnd;
        selectionEnd = selectionStart;
        selectionStart = temp;
    }
    if (selectionEnd > selectionStart) {
        Spannable str = bodyText.getText();
        boolean exists = false;


        for (int i = 0; i < str.length(); i++) {
            if (**want this statement here for highlight texted**) {
                str.removeSpan(*****);
                exists = false;
            }
        }

        if (!exists) {
            str.setSpan(new BackgroundColorSpan(Color.YELLOW), selectionStart, selectionEnd, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            exists = true;
        }

        bodyText.setSelection(selectionStart, selectionEnd);
    }
}

Answer 1

尝试一下，但是我不确定如何仅删除选定的文本突出显示颜色

 if (selectionEnd > selectionStart) {
        Spannable str = bodyText.getText();
        boolean exists = false;

        for (CharacterStyle span : str.getSpans(selectionStart, selectionEnd, CharacterStyle.class)) {
            if (span instanceof BackgroundColorSpan)
                str.removeSpan(span);
            exists = true;
        }
        if (!exists) {
            str.setSpan(new BackgroundColorSpan(Color.YELLOW), selectionStart, selectionEnd, Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
        }

        bodyText.setSelection(selectionStart, selectionEnd);
    }

如何检查突出显示文本的其他条件？

1 个答案: