以编程方式将一个TextView中的不同样式设置为String

Question

下面的代码用于在一个TextView中显示两个String。

public View getView(int position, View convertView, ViewGroup parent) {
              System.gc();
              TextView tv = new TextView(mContext.getApplicationContext(), R.);
              String id = null;
              if (convertView == null) {
                    music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.TITLE);
                    musiccursor.moveToPosition(position);
                    id = musiccursor.getString(music_column_index);
                    music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST);
                    musiccursor.moveToPosition(position);
                    id += musiccursor.getString(music_column_index);
                    tv.setText(id));
              } else
                    tv = (TextView) convertView;
              return tv;
        }

我想为两个字符串设置不同的样式。第一粗体文本样式

music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.TITLE);
                    musiccursor.moveToPosition(position);
                    id = musiccursor.getString(music_column_index);

第二。小型文本样式

music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST);
                    musiccursor.moveToPosition(position);
                    id += musiccursor.getString(music_column_index);

有办法做到吗？

Answer 1

您可以通过Spannable:执行此操作

music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.TITLE);
musiccursor.moveToPosition(position);
final String title = musiccursor.getString(music_column_index);
id = musiccursor.getString(music_column_index);
music_column_index = musiccursor.getColumnIndexOrThrow(MediaStore.Audio.Media.ARTIST);
musiccursor.moveToPosition(position);
id += musiccursor.getString(music_column_index);
final SpannableStringBuilder sb = new SpannableStringBuilder(id);
final StyleSpan bss = new StyleSpan(android.graphics.Typeface.BOLD);
sb.setSpan(bss, 0, title.length, Spannable.SPAN_INCLUSIVE_INCLUSIVE);
tv.setText(sb));

然后你的第一部分将是粗体，第二部分将是正常的。

Answer 2

是的，使用这些：

tv.setTypeface(null, Typeface.BOLD_ITALIC);
tv.setTypeface(null, Typeface.BOLD);
tv.setTypeface(null, Typeface.ITALIC);
tv.setTypeface(null, Typeface.NORMAL);

如果您有2个String，我认为最简单的方法是创建2个单独的TextView，并根据您的需要应用上面的代码。

更新

如果我创建两个单独的TextView，如何返回它？

同样，我能想到的最简单的方法是创建一个List<String> ids并使用它

因此，使用：

ids.add(musiccursor.getString(music_column_index));

代替：

id += musiccursor.getString(music_column_index);