在android中处理SpannableStringBuilder图像

概述我正在开发一个应用程序,其中选定的联系人添加到EditText与aclose标记图像,当我点击该关闭标记图像时,应删除该联系人.我已完成代码显示关闭标记图像,但我不知道如何处理那些关闭标记图像.请建议我如何. 我的代码： for (int i = 0; i < selectedItems.size(); i++) { String na = selected 我正在开发一个应用程序,其中选定的联系人添加到EditText与aclose标记图像,当我点击该关闭标记图像时,应删除该联系人.我已完成代码显示关闭标记图像,但我不知道如何处理那些关闭标记图像.请建议我如何.

我的代码：

for (int i = 0; i < selectedItems.size(); i++) {                    String na = selectedItems.get(i);                    TextVIEw tv = createContactTextVIEw(na);                    BitmapDrawable bd = (BitmapDrawable) convertVIEwToDrawable(tv);                    bd.setBounds(0,bd.getIntrinsicWIDth(),bd.getIntrinsicHeight());                    sb.append(na + ",");                    sb.setSpan(new ImageSpan(bd),sb.length()                            - (na.length() + 1),sb.length() - 1,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);                }                txt.setText(sb);private Object convertVIEwToDrawable(TextVIEw vIEw) {        int spec = MeasureSpec.makeMeasureSpec(0,MeasureSpec.UnspecIFIED);        vIEw.measure(spec,spec);        vIEw.layout(0,vIEw.getMeasureDWIDth(),vIEw.getMeasuredHeight());        Bitmap b = Bitmap.createBitmap(vIEw.getMeasureDWIDth(),vIEw.getMeasuredHeight(),Bitmap.Config.ARGB_8888);        Canvas c = new Canvas(b);        c.translate(-vIEw.getScrollX(),-vIEw.getScrollY());        vIEw.draw(c);        vIEw.setDrawingCacheEnabled(true);        Bitmap cacheBmp = vIEw.getDrawingCache();        Bitmap vIEwBmp = cacheBmp.copy(Bitmap.Config.ARGB_8888,true);        vIEw.destroyDrawingCache();        return new BitmapDrawable(vIEwBmp);    }    private TextVIEw createContactTextVIEw(String text) {        TextVIEw tv = new TextVIEw(this);        tv.setText(text);        tv.setTextSize(25);        tv.setBackgroundResource(R.drawable.oval_small);        tv.setCompoundDrawablesWithIntrinsicBounds(0,R.drawable.close,0);        return tv;    }

解决方法 ClickableSpan就是你想要的：

for (int i = 0; i < selectedItems.size(); i++) {     String na = selectedItems.get(i);     TextVIEw tv = createContactTextVIEw(na);     BitmapDrawable bd = (BitmapDrawable) convertVIEwToDrawable(tv);     bd.setBounds(0,bd.getIntrinsicHeight());     sb.append(na + ",");     sb.setSpan(new ImageSpan(bd),sb.length()          - (na.length() + 1),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);     final int index = i;       sb.setSpan(new ClickableSpan() {                @OverrIDe                public voID onClick(VIEw Widget) {                    // here add your code                    // delete your selectedItems[index]                    // recreate your SpannedString and set to txt                }            },sb.length()                    - (na.length() + 1),Spannable.SPAN_EXCLUSIVE_EXCLUSIVE); } txt.setText(sb); txt.setMovementMethod(linkMovementMethod.getInstance());  // important

不要忘记最后一行

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