富文本使用，TextView末尾接一个图片

使用
final Drawable drawable = getResources().getDrawable(R.mipmap.qietu);
TextViewUtils.addDrawableInEnd(textview, mActivity, drawable, "XXXXXXXXXXXXXX路-XXXXXXXXXXX路方向");

public class TextViewUtils {
    /**
     * 富文本添加图片到末尾 并自动匹配高度
     *
     * @param textView
     * @param context
     * @param drawable
     */
    public static void addDrawableInEnd(TextView textView, Activity context, Drawable drawable, String str) {

        if (drawable == null) {
            return;
        }
        TextPaint paint = textView.getPaint();// 获取文本控件字体样式
        Paint.FontMetrics fm = paint.getFontMetrics();
        int textFontHeight = (int) Math.ceil(fm.descent - fm.top) + 2;// 计算字体高度座位图片高度
        int imageWidth = drawable.getIntrinsicWidth() * textFontHeight
                / drawable.getIntrinsicHeight();// 计算图片根据字体大小等比例缩放后的宽度
        drawable.setBounds(0, AppTools.dip2px(context, 1), imageWidth,
                textFontHeight);// 缩放图片  也可根据实际需求

        ImageSpan span = new ImageSpan(drawable, ImageSpan.ALIGN_BOTTOM); //   ImageSpan.ALIGN_BASELINE放置位置
        String space = " ";
        str = str + space;
        int strLength = str.length();
        SpannableString ss = new SpannableString(str);
        ss.setSpan(span, strLength - 1, strLength, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
        textView.setText(ss.subSequence(0, strLength));

    }
}

  public static int dip2px(Context context, float value) {

        return (int) (context.getResources().getDisplayMetrics().density * value + 0.5f);
    }