Question

你好我正在开发我要插入笑脸的聊天应用程序我对它如何集成和显示它并不太了解你可以给我一些建议吗？

ImageGetter imageGetter = new ImageGetter() {
    public Drawable getDrawable(String source) {
        Drawable d = getResources().getDrawable(
                R.drawable.happy);
        d.setBounds(0, 0, d.getIntrinsicWidth(), d.getIntrinsicHeight());
        return d;
    }
};

cs = Html.fromHtml(
        "<img src='"
                + getResources()
                        .getDrawable(R.drawable.happy)
                + "'/>", imageGetter, null);
System.out.println("cs is:- " + cs);
edttxtemoji.setText(cs);

我发现这个代码，在这里它使用图像，这是可行的吗？还是有其他解决方案？请提前为我提供更好的解决方案

Answer 1

是的还有另一种方式可以在TextView或EditText内展示笑脸。使用Spannable构建ImageSpan文本，然后将Spannable的文本设置为TextView或EditText。这是同一个post。

Answer 2

在edittext中设置笑脸

int value=R.id.ic_launcher;
Drawable Smiley = getResources().getDrawable(value);
Smiley.setBounds(0, 0, 15, 15);
SpannableStringBuilder builder = new SpannableStringBuilder();
String imgValue = "["+value+"]";
builder.append(imgValue);
builder.setSpan(new ImageSpan(Smiley), builder.length()-imgValue.length(), builder.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
edit_text.getText().insert(txt.getSelectionStart(), builder);

现在在listview或textview中获取笑脸

textview.setText(addSmileySpans(context,edit_text.getText()));
public CharSequence addSmileySpans(Context context, CharSequence msg) {

    SpannableStringBuilder builder = new SpannableStringBuilder(your_recieved_message);
    Pattern pattern = Pattern.compile("\\[([^\\[\\]]+)\\]");
    if( pattern != null )
    {
        Matcher matcher = pattern.matcher( your_recieved_message );
        int matchesSoFar = 0;
        while( matcher.find() )
        {
            CharSequence cs =matcher.group().subSequence(1, matcher.group().length()-1);
            int value = Integer.parseInt(cs.toString());
            System.out.println("pattern is::"+matcher.group().subSequence(1, matcher.group().length()-1)); 
            int start = matcher.start() - (matchesSoFar * 2);
            int end = matcher.end() - (matchesSoFar * 2);
            Drawable Smiley = context.getResources().getDrawable(value);
            Smiley.setBounds(0, 0,15,15);
            builder.setSpan(new ImageSpan(Smiley), start + 1, end - 1, 0 );
            builder.delete(start, start + 1);
            builder.delete(end - 2, end -1);
            matchesSoFar++;

        }
    }
    return builder;
}

Answer 3

我觉得有点晚了。

public void addSmily() {
    CharSequence text = myEditText.getText();
    int resource  = R.drawable.ic_menu_emoticons ;
    myEditText.setText(getSpannableText(text,resource));
}

private Spannable getSpannableText(CharSequence text, int smilyToAppend) {
    Spannable spannable = Factory.getInstance().newSpannable(text+" ");
    ImageSpan smilySpan = new ImageSpan(getApplicationContext(),smilyToAppend);
    spannable.setSpan(smilySpan, spannable.length()-1, spannable.length(), 0);
    return spannable;
}

在textview中显示笑脸，在android中显示edittext

3 个答案: