Java代码
<pre name="code" class="java">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
Java代码
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
Java代码
// 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
Java代码
// 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