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);
}
textView.setMovementMethod(new CustomLinkMovementMethod(context)); textView.setLinksClickable(true);
