android 自定义TextView支持微博功能后在ListView占用了Item点击的解决办法

原文：http://www.cnblogs.com/TerryBlog/archive/2013/04/02/2994815.html

使用setMovementMethod才能使TextView里面的元素自动拥有点击功能，支持ClickSpan。但是加上这个方法会造成ListView的每个项无的文本会占用ListView的ItemClick,解决这个办法需要重写一个setMovementMethod方法，详见代码如下：

public class TextViewFixTouchConsume extends TextView {
boolean dontConsumeNonUrlClicks = true;
boolean linkHit;

public TextViewFixTouchConsume(Context context) {
super(context);
}

public TextViewFixTouchConsume(Context context, AttributeSet attrs) {
super(context, attrs);
}

public TextViewFixTouchConsume(Context context, AttributeSet attrs, int defStyle) {
super(context, attrs, defStyle);
}

@Override
public boolean onTouchEvent(MotionEvent event) {
linkHit = false;
boolean res = super.onTouchEvent(event);

if (dontConsumeNonUrlClicks)
return linkHit;
return res;

}

public void setTextViewHTML(String html)
{
CharSequence sequence = Html.fromHtml(html);
SpannableStringBuilder strBuilder = new SpannableStringBuilder(sequence);
setText(strBuilder);
}

public static class LocalLinkMovementMethod extends LinkMovementMethod{
static LocalLinkMovementMethod sInstance;

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

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) {
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.setSelecti
4000
on(buffer,
buffer.getSpanStart(link[0]),
buffer.getSpanEnd(link[0]));
}

if (widget instanceof TextViewFixTouchConsume){
((TextViewFixTouchConsume) widget).linkHit = true;
}
return true;
} else {
Selection.removeSelection(buffer);
Touch.onTouchEvent(widget, buffer, event);
return false;
}
}
return Touch.onTouchEvent(widget, buffer, event);
}
}
}

以上加红的两个代码必须要重写。随后你就可以这么使用

setMovementMethod(TextViewFixTouchConsume.LocalLinkMovementMethod.getInstance());

这样即给TextView增加点击效果，又不让其占用Item的点击焦点。类似微博的@ 、表情、链接等。

 

最后发个图，给大家参考