我可以使用LinkMovementMethod当TextView中禁用滚动？ [英] Can I disable the scrolling in TextView when using LinkMovementMethod?

问题描述

我使用的点击跨度一个TextView，使文本的一部分被点击。
它工作正常，只是TextView是被滚动下来，这件事情我不想。
它是因为我用LinkMovementMethod，如果需要的滚动。反正是有取消滚动？

  SpannableString SS =我的文字[点击区域]结束。    ClickableSpan clickableSpan =新ClickableSpan（）{
        @覆盖
        公共无效的onClick（查看的TextView）{
            //我的点击操作
        }
    };    //设置跨度
    字符串fromString =文本;
    。INT startClickPos = ss.toString（）的indexOf（fromString）+ fromString.length（）+ 1;
    INT endCickPos = startClickPos + 12;
    ss.setSpan（clickableSpan，startClickPos，endCickPos，Spanned.SPAN_EXCLUSIVE_EXCLUSIVE）;    textView.setText（SS）;
    textView.setMovementMethod（LinkMovementMethod.getInstance（））;
 

解决方案

我用这code禁止与clickableSpan滚动的TextView的。

 公共类LinkMovementMethodOverride实现View.OnTouchListener {@覆盖
公共布尔onTouch（视图V，MotionEvent事件）{
    TextView的小部件=（TextView的）V;
    对象文本= widget.getText（）;
    如果（文本的instanceof跨区）{
        跨区缓冲=（跨区）文本;        INT行动= event.getAction（）;        如果（动作== MotionEvent.ACTION_UP
                ||行动== MotionEvent.ACTION_DOWN）{
            INT X =（int）的event.getX（）;
            INT Y =（int）的event.getY（）;            点¯x -  = widget.getTotalPaddingLeft（）;
            Ÿ -  = widget.getTotalPaddingTop（）;            X + = widget.getScrollX（）;
            Y + = widget.getScrollY（）;            布局布局= widget.getLayout（）;
            INT线= layout.getLineForVertical（Y）;
            诠释了= layout.getOffsetForHorizo​​ntal（线，X）;            ClickableSpan [] =链接buffer.getSpans（脱，脱，
                    ClickableSpan.class）;            如果（link.length！= 0）{
                如果（动作== MotionEvent.ACTION_UP）{
                    链接[0] .onClick（部件）;
                }否则如果（动作== MotionEvent.ACTION_DOWN）{
                    //选择仅适用于Spannable文本。在我们的例子setSelection不会对跨区工作文本
                    //Selection.setSelection(buffer，buffer.getSpanStart（链接[0]），buffer.getSpanEnd（链接[0]））;
                }
                返回true;
            }
        }    }    返回false;
}}
 

在它应用于目标TextView的触摸监听器： -

textview.setOnTouchListener（新LinkMovementMethodOverride（））;

I'm using clickable span in a textView to enable only part of the text to be clickable. It works fine except that the textView is scrolling down and that's something I don't want. It happens because I use LinkMovementMethod that scrolls if needed. Is there anyway to cancel the scrolling?

SpannableString ss = "My text [click area] end."

    ClickableSpan clickableSpan = new ClickableSpan() {
        @Override   
        public void onClick(View textView) {
            // My click action
        }
    };

    // Set the span
    String fromString = "text";
    int startClickPos = ss.toString().indexOf(fromString)+fromString.length()+1;
    int endCickPos=startClickPos+ 12;
    ss.setSpan(clickableSpan, startClickPos, endCickPos, Spanned.SPAN_EXCLUSIVE_EXCLUSIVE);

    textView.setText(ss);
    textView.setMovementMethod(LinkMovementMethod.getInstance());

解决方案

I am using this code to disable scrolling for TextView with clickableSpan.

public class LinkMovementMethodOverride implements View.OnTouchListener{

@Override
public boolean onTouch(View v, MotionEvent event) {
    TextView widget = (TextView) v;
    Object text = widget.getText();
    if (text instanceof Spanned) {
        Spanned buffer = (Spanned) text;

        int action = event.getAction();

        if (action == MotionEvent.ACTION_UP
                || action == MotionEvent.ACTION_DOWN) {
            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) {
                if (action == MotionEvent.ACTION_UP) {
                    link[0].onClick(widget);
                } else if (action == MotionEvent.ACTION_DOWN) {                             
                    // Selection only works on Spannable text. In our case setSelection doesn't work on spanned text
                    //Selection.setSelection(buffer, buffer.getSpanStart(link[0]), buffer.getSpanEnd(link[0]));
                }
                return true;
            }
        }

    }

    return false;
}

}

After that apply it to the target textview as touch listener: -

textview.setOnTouchListener(new LinkMovementMethodOverride());

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