textview富文本设置clickspan，按下后拖动，textview的背景不会恢复，求大神救救孩子吧。

[春华-秋实]

仿照微信的评论功能，点击评论的时候背景设置变色，但是拖动的时候背景有时候没有恢复，求大神救救孩子吧。
下面的代码是自定义clickspan

public class MyClickableSpan extends ClickableSpan {
    private onTextClickListener mListener;

    public MyClickableSpan(onTextClickListener listener) {
        this.mListener = listener;
    }

    @Override
    public void onClick(View widget) {
        mListener.textClick(widget);
    }

    @Override
    public void updateDrawState(TextPaint ds) {
        super.updateDrawState(ds);
        mListener.setStyle(ds);
    }
}

下面的代码是LinkMovementMethod

public class MyLinkMovementMethod extends LinkMovementMethod {

    private static LinkMovementMethod sInstance;

    public static MovementMethod getInstance() {
        if (sInstance == null)
            sInstance = new MyLinkMovementMethod();

        return sInstance;
    }

    @Override
    public boolean onTouchEvent(TextView widget, Spannable buffer, MotionEvent event) {

        int action = event.getAction();

        if (action == MotionEvent.ACTION_UP ||
                action == MotionEvent.ACTION_DOWN ||
                action == MotionEvent.ACTION_MOVE) {

            int x = (int) event.getX();
            int y = (int) event.getY();

            x -= widget.getTotalPaddingLeft();
            y -= widget.getTotalPaddingTop();

            x += widget.getScrollX();
            y += widget.getScrollY();

            Layout layout = widget.getLayout();
            int line = layout.getLineForVertical(y);
            int off = layout.getOffsetForHorizontal(line, x);

            ClickableSpan[] link = buffer.getSpans(off, off, ClickableSpan.class);

            if (link.length != 0) {
                switch (action){
                    case MotionEvent.ACTION_UP:
                        link[0].onClick(widget);

                        buffer.setSpan(new BackgroundColorSpan(Color.TRANSPARENT),
                                buffer.getSpanStart(link[0]), buffer.getSpanEnd(link[0]),
                                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

                        Selection.removeSelection(buffer);
                        break;
                    case MotionEvent.ACTION_DOWN:
                        buffer.setSpan(new BackgroundColorSpan(Color.GRAY),
                                buffer.getSpanStart(link[0]), buffer.getSpanEnd(link[0]),
                                Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

                        Selection.setSelection(buffer,
                                buffer.getSpanStart(link[0]),
                                buffer.getSpanEnd(link[0]));
                        break;
                    case MotionEvent.ACTION_MOVE:
                        buffer.setSpan(new BackgroundColorSpan(Color.TRANSPARENT),
                            buffer.getSpanStart(link[0]), buffer.getSpanEnd(link[0]),
                            Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

                        Selection.removeSelection(buffer);
                        break;
                }
                return false;
            } else {
                Selection.removeSelection(buffer);
                return false;
            }
        }
//        return super.onTouchEvent(widget, buffer, event);
        return false;
    }
}

求大神救救孩子，这是什么原因啊？

[m-oj]

加个action_cancel的处理，恢复背景

[春华-秋实]

引用 1 楼 m-oj 的回复:

加个action_cancel的处理，恢复背景

感谢老哥，已解决，通过监听motionevent的事件，确实是要添加Action_Cancel,只是只添加action_cancel做恢复操作还不行。我同时更改了linkmovementmethod的方法，解决。可笑我之前还想通过事件拦截不让textview接受down event，证明你思路是对的。