android - EditText 上的 ImageSpan(笑脸)。使用 SwiftKey 键盘不起作用

Question

我正在做一个简单的聊天应用程序，我想在编写消息时在 edittext 上显示笑脸。

我用它来识别哪些字符将通过 ImageSpan 由 Image 替换(仅当在 EditText 上插入笑脸字符时才会调用):

for (index = start; index < start+num_chars; index++) {
        if (index + 1 > editable.length())
            continue;  
          if(emoticons.containsKey(editable.subSequence(index, index + 1).toString())){
            int length=1; 

            Drawable drawable = context.getResources().getDrawable(emoticons.get(editable.subSequence(index, index + 1).toString()));
            Bitmap bitmap = ((BitmapDrawable) drawable).getBitmap();


            int size=Utils.GetDipsFromPixel(context, (int)(textSize*1.3));

            Drawable d = new BitmapDrawable(Bitmap.createScaledBitmap(bitmap, size, size, true));
            int dWidth = d.getIntrinsicWidth();
            int dHeight = d.getIntrinsicHeight();

            d.setBounds(0 , -dHeight, dWidth, 0);
            ImageSpan span;
            span = new ImageSpan(d,ImageSpan.ALIGN_BASELINE);
            editable.setSpan(span, index, index + length,Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);

            index += length - 1;
          }

      }

我正在使用 SPAN_EXCLUSIVE_EXCLUSIVE 标签来设置跨度，但我在使用 swiftkey 键盘时遇到问题，因为当我在 edittext 中插入笑脸时，我在 imageSpan 之后写的所有内容都保持在图像下方(如 SPAN_EXCLUSIVE_INCLUSIVE)。使用 Android 默认键盘我没有这个问题。

我只希望 whatsapp 应用程序在 EditText 上有相同的行为和笑脸。

有什么建议吗？我必须对我的代码做任何更改吗？

编辑:“可编辑”变量被传递给方法。它是 txtMessage.getText() 值，其中 txtMessage 是一个 EditText。

谢谢!

编辑:只跨越一部分代码!这在多行中效果很好!我认为问题在于使用 Drawable->Bitmap->ResizedBitmap->Drawable。

public static final HashMap<String, Integer> emoticons = new HashMap();
static {
    emoticons.put("\ue415", R.drawable.e415);
    emoticons.put("\ue056", R.drawable.e056);
    emoticons.put("\ue057", R.drawable.e057);
...
public static Spannable getSmiledText(Context context, Spannable editable,
        int start, int num_chars, float textSize) {

    int index;
    for (index = start; index < start + num_chars; index++) {
        if (index + 1 > editable.length())
            continue;
        if (EmojiLayout.emoticons.containsKey(editable.subSequence(index,
                index + 1).toString())) {
            int length = 1;

            Bitmap smiley = BitmapFactory.decodeResource(context.getResources(), ((Integer) EmojiLayout.emoticons.get(editable.subSequence(index,
                    index + 1).toString())));
            int size = Utils.GetDipsFromPixel(context,
            (int) (textSize * 1.37));

            Bitmap scaledbmp=Bitmap.createScaledBitmap(
                    smiley, size, size, false);
            ImageSpan span;
            span = new ImageSpan(scaledbmp);
            Log.d("EmojiLayout", "Index: " + String.valueOf(index) + "To: "
                    + String.valueOf(index + length));
            editable.setSpan(span, index, index + length,
                    Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
            index += length - 1;
        }
    }
    return editable;
}

Answer 1

使用这个::

    public static CharSequence addSmileySpans(Context ch, CharSequence your_recieved_message)
{
    //smilyRegexMap = new HashMap<Integer, String>();

private static final HashMap<String, Integer> smilyRegexMap = new HashMap<String, Integer>();
smilyRegexMap.put( ">:-\\(" , R.drawable.fb_grumpy);
        smilyRegexMap.put( ">:\\(" , R.drawable.fb_grumpy);
        smilyRegexMap.put( ">:-O" , R.drawable.fb_upset);
        smilyRegexMap.put( ":-\\)" , R.drawable.fb_smile);
        smilyRegexMap.put( ":\\)",R.drawable.fb_smile);
        smilyRegexMap.put( ":-\\]" , R.drawable.fb_smile);
        smilyRegexMap.put( ":-\\(", R.drawable.fb_frown);




    System.out.println("==In Spannable Function..........");
    SpannableStringBuilder builder = new SpannableStringBuilder(your_recieved_message);

    System.out.println("==================Size of Smily  : "+ smilyRegexMap.size());

    @SuppressWarnings("rawtypes")
    Iterator it = smilyRegexMap.entrySet().iterator();
    while (it.hasNext()) {
        @SuppressWarnings("rawtypes")
        Map.Entry pairs = (Map.Entry) it.next();




        Pattern mPattern = Pattern.compile((String) pairs.getKey(),Pattern.CASE_INSENSITIVE);
        Matcher matcher = mPattern.matcher(your_recieved_message);

        while (matcher.find()) {

                Bitmap smiley = BitmapFactory.decodeResource(ch.getResources(), ((Integer) pairs.getValue()));
                Object[] spans = builder.getSpans(matcher.start(), matcher.end(), ImageSpan.class);
                if (spans == null || spans.length == 0) {
                    builder.setSpan(new ImageSpan(smiley), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                }
        }
    }
    return builder;
}