android – 展开ClickableSpan的触控区域

概述我有一个TextView,我在其中设置 HTML文本.本文有很多链接.当您点击链接时,它并不总是触发onClick方法.所以,我正在尝试扩展ClickableSpan的区域,以便始终响应. int start = strBuilder.getSpanStart(span);int end = strBuilder.getSpanEnd(span);int flags = strBuilder. 我有一个TextVIEw,我在其中设置 HTML文本.本文有很多链接.当您点击链接时,它并不总是触发onClick方法.所以,我正在尝试扩展ClickableSpan的区域,以便始终响应.

int start = strBuilder.getSpanStart(span);int end = strBuilder.getSpanEnd(span);int flags = strBuilder.getSpanFlags(span);final ClickableSpan clickable = new ClickableSpan() {  public voID onClick(VIEw vIEw) {    gettouchActions(span.getURL());  }};strBuilder.setSpan(clickable,start,end,flags);strBuilder.removeSpan(span);

解决方法 CustomMovementMethod必须扩展ScrollingMovementMethod并覆盖ontouchEvent方法.为了增加一些额外空间,您必须在尺寸中定义它并在开始/结束范围中使用它.

@OverrIDe  public boolean ontouchEvent(TextVIEw Widget,Spannable buffer,MotionEvent event) {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);  int startSpan = off - context.getResources().getDimension(R.dimen.extra_space_start);  int endSpan = off + context.getResources().getDimension(R.dimen.extra_space_end);  ClickableSpan[] link = buffer.getSpans(startSpan,endSpan,ClickableSpan.class);  if (link.length != 0) {    if (action == MotionEvent.ACTION_UP) {      link[0].onClick(Widget);    } else if (action == MotionEvent.ACTION_DOWN) {      Selection.setSelection(buffer,buffer.getSpanStart(link[0]),buffer.getSpanEnd(link[0]));    }    return true;  } else {    Selection.removeSelection(buffer);  }}return super.ontouchEvent(Widget,buffer,event);

}

您可以像这样调用自定义链接移动：

textVIEw.setMovementMethod(new CustomlinkMovementMethod(context));textVIEw.setlinksClickable(true);

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