联系人头像 android

  <pre class="java" name="code">ContentResolver cr = getContentResolver();
 Cursor cursor = cr.query(ContactsContract.Contacts.CONTENT_URI, null, "DISPLAY_NAME = '" + "gm" + "'", null,
                 null);
 if (cursor.moveToFirst()) {
 //获得联系人的id
 String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));

 //修改联系人的头像
 Bitmap sourceBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.img2);
 final ByteArrayOutputStream os = new ByteArrayOutputStream();
 // 将Bitmap压缩成PNG编码，质量为100%存储
 sourceBitmap.compress(Bitmap.CompressFormat.PNG, 100, os);
 byte[] avatar =os.toByteArray();
 ContentValues values = new ContentValues();
 values.put(Data.RAW_CONTACT_ID, contactId);
 values.put(Data.MIMETYPE, Photo.CONTENT_ITEM_TYPE);
 values.put(Photo.PHOTO, avatar);
 getContentResolver().update(Data.CONTENT_URI, values, null, null);</pre>

 

构建uri

 

 Uri contactUri = ContentUris.withAppendedId(ContactsContract.Data.CONTENT_URI,
 Long.parseLong(contactId));
 //带路径
 Uri photoUri = Uri.withAppendedPath(contactUri, ContactsContract.Contacts.Photo.DATA15);

 此uri为content://com.android.contacts/contactId/data15

 

获得联系人图片

 

 // 获得联系人图片，     读取的是Data类中的data15字段
 Uri uri = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI,
  Long.parseLong(contactId)); InputStream input =
  ContactsContract.Contacts.openContactPhotoInputStream(cr, uri);
  Bitmap contactPhoto = BitmapFactory.decodeStream(input);
  ImageView img=(ImageView)findViewById(R.id.img);
  img.setImageBitmap(contactPhoto);

 

 查询电话记录

 

 // 查询所有
 // Cursor cursor=resolver.query(CallLog.Calls.CONTENT_URI, null,
         // null,null, null);
 // 查询指定号码
 Cursor cursor=resolver.query(CallLog.Calls.CONTENT_URI, null,
           "number=? and type=?", new String[]{"15555215556","2"}, null);
  while(cursor.moveToNext()){ //取得联系人名字 PhoneLookup.DISPLAY_NAME int nameFieldColumnIndex
          =cursor.getColumnIndex(CallLog.Calls.CACHED_NAME); String
     contact=cursor.getString(nameFieldColumnIndex);
 //取得电话号码
  int numberFieldColumnIndex=cursor.getColumnIndex(PhoneLookup.NUMBER);
  String number=cursor.getString(numberFieldColumnIndex);

 

取得浏览器所有“书签”信息：content://browser/bookmarks

数据都存储在contract的data表中，每一个联系人项存储一行

另有两篇：一篇讲解contentProvider

http://www.cnblogs.com/not-code/archive/2011/06/24.html

另一篇讲解联系人

http://blog.csdn.net/wenlin56/article/details/6074437