Question

我可以使用查询“content：// mms / part”从设备读取mms图像并将这些mmsimages发送到服务器，但我的要求是在我的应用程序中我将从设备读取所有mms图像并备份到服务器从应用程序打开的第二次起，我需要将最新的mms备份到服务器，为了满足这个要求，我需要在我给出的特定日期之后从设备读取mms。有可能吗？

 Cursor curPart = getContentResolver (). query (Uri.parse ("content://mms/part"), null,    null, null, null);


 while(curPart.moveToNext())
      {
      coloumns = curPart.getColumnNames();

      for(int i=0;i<coloumns.length;i++)
      {
          Log.e("coloumns",coloumns[i]);

      }
        if(values == null)
        values = new String[coloumns.length];

        for(int i=0; i< curPart.getColumnCount(); i++)
        {
        values[i] = curPart.getString(i);
        }

            if(values[3].equals("image/jpeg"))
            {
                                mms_image.add(GetMmsAttachment(values[0],values[12],values[4]));
            }



    }




        private String GetMmsAttachment(String _id, String _data,String fileName )
    {

    Uri partURI = Uri.parse("content://mms/part/" + _id );
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    InputStream is = null;

    try {
    is = getContentResolver().openInputStream(partURI);

    convertBitmapToFile(bitmap);


    byte[] buffer = new byte[256];
    int len = is.read(buffer);
    while (len >= 0) {
    baos.write(buffer, 0, len);
    len = is.read(buffer);
    }
    }
    catch (IOException e)
    {
    e.printStackTrace();
    //throw new MmsException(e);
    }
    finally
    {
    if (is != null)
    {
    try
    {
    ByteArrayInputStream bais = new ByteArrayInputStream(baos.toByteArray());
    //writeToFile(bais,"data/",fileName);
    is.close();
    bais.close();
    }
    catch (IOException e)
    {`enter code here`
    e.printStackTrace();
    }
    }
    }
    return strMyImagePath;
    }

Answer 1

这是我在评论中讨论的代码（来自How to Read MMS Data in Android?）：

String selection = "_id = "+_id;
Uri uri = Uri.parse("content://mms");
Cursor cursor = contentResolver.query(uri, null, selection, null, null);
String phone = cursor.getString(cursor.getColumnIndex("address"));
int type = cursor.getInt(cursor.getColumnIndex("type"));// 2 = sent, etc.
String date = cursor.getString(cursor.getColumnIndex("date"));
String body = cursor.getString(cursor.getColumnIndex("body"));

然后，您可以将日期与给定日期进行比较，以确定是否要上传与当前_id相对应的数据。

如何在特定日期后从Android设备读取mms？

1 个答案: