Question

我正在尝试使用以下代码获取设备中的联系人可写帐户列表

        public static final String SYNC_META_DATA = "android.content.SyncAdapter";

    public static final String[] METADATA_CONTACTS_NAMES = new String[] {
            "android.provider.ALTERNATE_CONTACTS_STRUCTURE",
            "android.provider.CONTACTS_STRUCTURE"
    };

final Intent intent = new Intent(SYNC_META_DATA).setPackage(resPackageName);
        final List<ResolveInfo> intentServices =
                        pm.queryIntentServices(intent, PackageManager.GET_META_DATA);
        if (intentServices != null) {
            for (final ResolveInfo resolveInfo : intentServices) {
                final ServiceInfo serviceInfo = resolveInfo.serviceInfo;
                if (serviceInfo == null) {
                    continue;
                }
                for (String metadataName : METADATA_CONTACTS_NAMES) {
                    final XmlResourceParser parser = serviceInfo.loadXmlMetaData(
                            pm, metadataName);
                    if (parser != null) {
                        return parser;
                    }
                }
            }
        }

但是我总是将XmlResourceParser解析器设为null。所以请帮我如何获取android中可联系联系人的帐户列表

Answer 1

有一个API，您需要遍历所有SyncAdapter并检查它们是否var topSafeAreaHeight: CGFloat = 0 var bottomSafeAreaHeight: CGFloat = 0 if #available(iOS 11.0, *) { let window = UIApplication.shared.windows[0] let safeFrame = window.safeAreaLayoutGuide.layoutFrame topSafeAreaHeight = safeFrame.minY bottomSafeAreaHeight = window.frame.maxY - safeFrame.maxY }并具有supportUploading作为其权限：

ContactsContract.AUTHORITY

final SyncAdapterType[] syncs = ContentResolver.getSyncAdapterTypes(); for (SyncAdapterType sync : syncs) { Log.d(TAG, "found SyncAdapter: " + sync.accountType); if (ContactsContract.AUTHORITY.equals(sync.authority)) { Log.d(TAG, "SyncAdapter supports contacts: " + sync.accountType + " - supportsUploading=" + sync.supportsUploading()); } }表示这是双向同步，即用户可以在其设备上修改联系人并将更改同步到他们的云帐户。

找不到联系人应用的android.provider.CONTACTS_STRUCTURE元数据

1 个答案: