Question

我设法阅读了联系人，但是我想写联系人以及阅读联系人。任何人都可以告诉我如何能够设法完成这两项任务，错误消息。

请参阅下面的代码，了解READ_CONTACTS我想将它扩展到WRITE_CONTACTS。

       // Called when the user is performing an action which requires the app to read the
    // user's contacts
    public void getPermissionToReadUserContacts() {
        // 1) Use the support library version ContextCompat.checkSelfPermission(...) to avoid
        // checking the build version since Context.checkSelfPermission(...) is only available
        // in Marshmallow
        // 2) Always check for permission (even if permission has already been granted)
        // since the user can revoke permissions at any time through Settings
        if (ContextCompat.checkSelfPermission(this, Manifest.permission.READ_CONTACTS)
                != PackageManager.PERMISSION_GRANTED) {

            // The permission is NOT already granted.
            // Check if the user has been asked about this permission already and denied
            // it. If so, we want to give more explanation about why the permission is needed.
            if (shouldShowRequestPermissionRationale(
                    Manifest.permission.READ_CONTACTS)) {
                // Show our own UI to explain to the user why we need to read the contacts
                // before actually requesting the permission and showing the default UI
            }

            // Fire off an async request to actually get the permission
            // This will show the standard permission request dialog UI
            requestPermissions(new String[]{Manifest.permission.READ_CONTACTS},
                    READ_CONTACTS_PERMISSIONS_REQUEST);
        }
    }

    // Callback with the request from calling requestPermissions(...)
    @Override
    public void onRequestPermissionsResult(int requestCode,
                                           @NonNull String permissions[],
                                           @NonNull int[] grantResults) {
        // Make sure it's our original READ_CONTACTS request
        if (requestCode == READ_CONTACTS_PERMISSIONS_REQUEST) {
            if (grantResults.length == 1 &&
                    grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                Toast.makeText(this, "Read Contacts permission granted", Toast.LENGTH_SHORT).show();
            } else {
                Toast.makeText(this, "Read Contacts permission denied", Toast.LENGTH_SHORT).show();
            }
        } else {
            super.onRequestPermissionsResult(requestCode, permissions, grantResults);
        }
    }
}

    @Override
    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        if (resultCode == Activity.RESULT_OK) {
            ContentResolver reContentResolverol = getContentResolver();
            Uri contactData = data.getData();
            @SuppressWarnings("deprecation")
            Cursor cursor = managedQuery(contactData, null, null, null, null);
            cursor.moveToFirst();
            String username = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
            String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
            Cursor phone = reContentResolverol.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
                    null,
                    ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId,
                    null,
                    null);
            while (phone.moveToNext()) {
                String usernumber = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
                phone1.setText(usernumber);
                name1.setText(username);
            }

        }
    }

}

Answer 1

您需要READ_CONTACTS in the manifest和at runtime的managedQuery()权限。

此外，请注意CursorLoader已被弃用六年前，在此之前也是一个坏主意。请使用更新的技术（例如grid = grid + "\n";）。

如何读取和写入联系人权限

1 个答案: