Question

我在SpannedText中有EditText，我正在用笑容替换文字，例如 cool 替换为笑脸。但是当我在Android手机（Nexus 5 kitkat 4.4.4）上按Backspace时，它会显示“（笑）酷”然后它会删除最后的字母微笑本身。但是在 Genymotion 模拟器上，它可以根据需要运行。我的代码出了什么问题？

此代码适用于

Drawable d = Drawable.createFromStream(ims, null);
                Bitmap b = ((BitmapDrawable)d).getBitmap();
                int spanSmileHeight = (displayHeight>displayWidth) ? ((int) ((double) displayHeight/25)) : ((int) ((double) displayWidth/25));
                int spanSmileWidth = ((int) ((double) spanSmileHeight/b.getHeight())*b.getWidth())+15;
                Bitmap bitmapResized = Bitmap.createScaledBitmap(b, spanSmileWidth, spanSmileHeight, false);
                Drawable sd = new BitmapDrawable(getResources(), bitmapResized);
                sd.setBounds(0, 0, spanSmileWidth, spanSmileHeight);
                addPattern(emoticons, smileyCode, sd);
...

ImageView.setOnClickListener(new View.OnClickListener() {
                    @Override
                    public void onClick(View view) {
                        int start = Math.max(message.getSelectionStart(), 0);
                        int end = Math.max(message.getSelectionEnd(), 0);
                        message.getText().replace(Math.min(start, end), Math.max(start, end),
                                smileyCode, 0, smileyCode.length());
                        message.setText(getSmiledText(view.getContext(), message.getText()));
                        message.setSelection(start + smileyCode.length());

和这个

public static boolean addSmiles(Context context, Spannable spannable) {
        boolean hasChanges = false;
        for (Map.Entry<Pattern, Drawable> entry : emoticons.entrySet()) {
            Matcher matcher = entry.getKey().matcher(spannable);
            while (matcher.find()) {
                boolean set = true;
                for (ImageSpan span : spannable.getSpans(matcher.start(),
                        matcher.end(), ImageSpan.class))
                    if (spannable.getSpanStart(span) >= matcher.start()
                            && spannable.getSpanEnd(span) <= matcher.end())
                        spannable.removeSpan(span);
                    else {
                        set = false;
                        break;
                    }
                if (set) {
                    hasChanges = true;
                    spannable.setSpan(new ImageSpan(entry.getValue(), ImageSpan.ALIGN_BOTTOM),
                            matcher.start(), matcher.end(),
                            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                }
            }
        }
        return hasChanges;
    }

    public static Spannable getSmiledText(Context context, CharSequence text) {
        Spannable spannable = spannableFactory.newSpannable(text);
        addSmiles(context, spannable);
        return spannable;
    }

在bacspace之前

before backspace

按下退格键（虚拟键盘）

after backspace

日志输出：

09-01 06:22:21.280    1271-1271/com.nnadir.wapchat.app I/wapChat﹕ *sad**sad**sad**sad**sad**cat**cat*
09-01 06:23:32.060    1271-1271/com.nnadir.wapchat.app I/wapChat﹕ *sad**sad**sad**sad**sad**cat**cat
09-01 06:23:32.080    1271-1271/com.nnadir.wapchat.app I/wapChat﹕ *sad**sad**sad**sad**sad**cat**
09-01 06:23:32.084    1271-1271/com.nnadir.wapchat.app I/wapChat﹕ *sad**sad**sad**sad**sad**cat**cat

再多3次

09-01 06:24:07.980    1271-1271/com.nnadir.wapchat.app I/wapChat﹕ *sad**sad**sad**sad**sad**cat**ca
09-01 06:24:08.264    1271-1271/com.nnadir.wapchat.app I/wapChat﹕ *sad**sad**sad**sad**sad**cat**c
09-01 06:24:08.668    1271-1271/com.nnadir.wapchat.app I/wapChat﹕ *sad**sad**sad**sad**sad**cat**

此处微笑已删除

09-01 06:24:09.248    1271-1271/com.nnadir.wapchat.app I/wapChat﹕ *sad**sad**sad**sad**sad**cat*

Answer 1

我找到了一种如何防止这种情况的方法。如果我们将targetSDK更改为15，则会成功删除微笑。

删除微笑时Android跨文本显示文本

1 个答案: