你如何通过android 2.3.6中的联系提供商获得联系人照片？

Question

我有这个版本适用于Android 4(String email是一个Gmail地址):

private Uri getPhotoUriFromEmail(String email) {
    Uri u = null;
    String[] projection = { ContactsContract.CommonDataKinds.Email.PHOTO_URI };
    String photoUri;
    ContentResolver cr = context.getContentResolver();
    Cursor emailCur = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, projection,
            ContactsContract.CommonDataKinds.Email.ADDRESS + " = ?", 
            new String[]{email}, null);
    if (emailCur.moveToNext()) { 
        photoUri = emailCur.getString(
                emailCur.getColumnIndex(ContactsContract.CommonDataKinds.Email.PHOTO_URI));
        u = Uri.parse(photoUri);
    }
    return u;
}

什么是2.3.6版本？(当我将API 8设置为我的最小API支持时,Android SDK也不应该警告我使用API​​ 11吗？因为它没有...)

Answer 1

你可以不用ContactsContract.CommonDataKinds.Email.PHOTO_URI 这种方式获得联系人照片uri :

private Uri getPhotoUriFromEmail(String email) {
    Uri u = null;
    String[] projection = { ContactsContract.CommonDataKinds.Photo.CONTACT_ID };
    String photoUri;
    ContentResolver cr = getContentResolver();
    Cursor emailCur = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI, 
            projection,
            ContactsContract.CommonDataKinds.Email.ADDRESS + " = ?",
            new String[]{email}, null);
    if (emailCur.moveToNext()) {
        int columnIndex = emailCur.getColumnIndex(
                              ContactsContract.CommonDataKinds.Photo.CONTACT_ID);
        long contactId = emailCur.getLong(columnIndex);

        u = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI, 
                                       contactId);
        u = Uri.withAppendedPath(u, 
                                ContactsContract.Contacts.Photo.CONTENT_DIRECTORY);
    }
    return u;
}

或者,您可以通过ContactsContract.Contacts .openContactPhotoInputStream(ContentResolver, Uri)以下方式获取照片流:

private InputStream getPhotoInputStreamFromEmail(String email) {
    Uri u = null;
    String[] projection = { ContactsContract.CommonDataKinds.Photo.CONTACT_ID };
    String photoUri;
    ContentResolver cr = getContentResolver();
    Cursor emailCur = cr.query(ContactsContract.CommonDataKinds.Email.CONTENT_URI,
            projection,
            ContactsContract.CommonDataKinds.Email.ADDRESS + " = ?",
            new String[]{email}, null);
    if (emailCur.moveToNext()) {
        int columnIndex = emailCur.getColumnIndex(
                ContactsContract.CommonDataKinds.Photo.CONTACT_ID);
        long contactId = emailCur.getLong(columnIndex);

        u = ContentUris.withAppendedId(ContactsContract.Contacts.CONTENT_URI,
                contactId);
        return ContactsContract.Contacts.openContactPhotoInputStream(cr, u);
    }
    return null;
}