Android实现EditText的富文本编辑

 public static TaskSpan getAudioSpan(Context context, int type, String json, String time, int progress) {    View spanView = View.inflate(context, R.layout.bbs_audio_bar_tag, null);    LinearLayout llBg = (LinearLayout) spanView.findViewById(R.id.ll_bg);    ImageView icPlay = (ImageView) spanView.findViewById(R.id.iv_play);    ImageView icStop = (ImageView) spanView.findViewById(R.id.iv_stop);    TextView tvTime = (TextView) spanView.findViewById(R.id.tv_time);    ProgressBar proBar = (ProgressBar) spanView.findViewById(R.id.progress_bar);    switch (type) {      case AUDIO_PLAY_NONE:        try {          final String[] split = json.split(BBSConstants.SPLIT_TAG);          JSONObject obj = new JSONObject(split[1]);          final JSONObject data = obj.optJSONObject(Constants.RETURN_DATA);          int duration = data.optInt(BBSConstants.LONG_DATA_DURATION);          tvTime.setText(DateUtil.getDurationTime(duration / 1000, false));          proBar.setProgress(0);          icPlay.setVisibility(View.VISIBLE);          icStop.setVisibility(View.GONE);          llBg.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.grey_bg_50dp_corner_no_border));        } catch (JSONException e) {          e.printStackTrace();        }        break;      case AUDIO_PLAY_ING:        proBar.setProgress(progress);        icPlay.setVisibility(View.GONE);        icStop.setVisibility(View.VISIBLE);        llBg.setBackgroundDrawable(context.getResources().getDrawable(R.drawable.blue_bg_50dp_corner_no_border));        tvTime.setText(time);        break;    }    BitmapDrawable drawable = (BitmapDrawable) ViewUtil.convertViewToDrawable(spanView);    drawable.setTargetDensity(MyApplication.getInstance().getResources().getDisplayMetrics());    final float scale = 1.0f / 6.0f;    final int width = DeviceUtil.getScreenWidth((Activity) context) - DeviceUtil.dip2px(context, LENGTH);    float height = (float) width * scale;    drawable.setBounds(0, 0, width, (int) height);    return new TaskSpan(drawable, type, json);  }