android 自定義TextView支持微博功能后在ListView占用了Item點擊的解決辦法

使用setMovementMethod才能使TextView里面的元素自動擁有點擊功能，支持ClickSpan。但是加上這個方法會造成ListView的每個項無的文本會占用ListView的ItemClick,解決這個辦法需要重寫一個setMovementMethod方法，詳見代碼如下：

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.setSelection(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);
    }
}
}

以上加紅的兩個代碼必須要重寫。隨后你就可以這么使用

setMovementMethod(TextViewFixTouchConsume.LocalLinkMovementMethod.getInstance());

這樣即給TextView增加點擊效果，又不讓其占用Item的點擊焦點。類似微博的@ 、表情、鏈接等。

 

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