#26 Implement getCurrentSingleSignOnAccount() livecycle aware (d3a86d82) · Commits · e / os / Android SingleSignOn

lib/src/main/java/com/nextcloud/android/sso/helper/CurrentSingleSignOnAccountLiveData.java

0 → 100644

+74 −0

Original line number	Diff line number	Diff line
		/*
		* Nextcloud SingleSignOn
		*
		* @author Stefan Niedermann
		*
		* This program is free software: you can redistribute it and/or modify
		* it under the terms of the GNU General Public License as published by
		* the Free Software Foundation, either version 3 of the License, or
		* (at your option) any later version.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		* You should have received a copy of the GNU General Public License
		* along with this program. If not, see <http://www.gnu.org/licenses/>.
		*/

		package com.nextcloud.android.sso.helper;

		import static com.nextcloud.android.sso.helper.SingleAccountHelper.getCurrentSingleSignOnAccount;

		import android.content.Context;
		import android.content.SharedPreferences;

		import androidx.annotation.NonNull;
		import androidx.lifecycle.LiveData;

		import com.nextcloud.android.sso.exceptions.NextcloudFilesAppAccountNotFoundException;
		import com.nextcloud.android.sso.exceptions.NoCurrentAccountSelectedException;
		import com.nextcloud.android.sso.model.SingleSignOnAccount;

		public class CurrentSingleSignOnAccountLiveData extends LiveData<SingleSignOnAccount> {

		private final Context context;
		private final SharedPreferences sharedPrefs;
		private final SharedPreferences.OnSharedPreferenceChangeListener preferenceChangeListener;

		CurrentSingleSignOnAccountLiveData(@NonNull Context context, @NonNull SharedPreferences sharedPrefs, @NonNull String key) {
		this.context = context;
		this.sharedPrefs = sharedPrefs;
		this.preferenceChangeListener = (changedPrefs, changedKey) -> {
		if (key.equals(changedKey)) {
		try {
		setValue(getValueFromPreferences());
		} catch (NextcloudFilesAppAccountNotFoundException \| NoCurrentAccountSelectedException e) {
		e.printStackTrace();
		}
		}
		};
		}

		@Override
		protected void onActive() {
		super.onActive();
		try {
		setValue(getValueFromPreferences());
		} catch (NextcloudFilesAppAccountNotFoundException \| NoCurrentAccountSelectedException e) {
		e.printStackTrace();
		}
		sharedPrefs.registerOnSharedPreferenceChangeListener(preferenceChangeListener);
		}

		private SingleSignOnAccount getValueFromPreferences() throws NextcloudFilesAppAccountNotFoundException, NoCurrentAccountSelectedException {
		return getCurrentSingleSignOnAccount(context);
		}

		@Override
		protected void onInactive() {
		sharedPrefs.unregisterOnSharedPreferenceChangeListener(preferenceChangeListener);
		super.onInactive();
		}
		}
		No newline at end of file

lib/src/main/java/com/nextcloud/android/sso/helper/SingleAccountHelper.java

+14 −2

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		@@ -24,7 +24,9 @@ import android.app.Activity;
		import android.content.Context;
		import android.content.SharedPreferences;

		import androidx.annotation.NonNull;
		import androidx.fragment.app.Fragment;
		import androidx.lifecycle.LiveData;

		import com.nextcloud.android.sso.AccountImporter;
		import com.nextcloud.android.sso.exceptions.NextcloudFilesAppAccountNotFoundException;
		@@ -54,6 +56,10 @@ public final class SingleAccountHelper {
		return AccountImporter.getSingleSignOnAccount(context, getCurrentAccountName(context));
		}

		public static LiveData<SingleSignOnAccount> getCurrentSingleSignOnAccount$(@NonNull Context context) {
		return new CurrentSingleSignOnAccountLiveData(context, AccountImporter.getSharedPreferences(context), PREF_CURRENT_ACCOUNT_STRING);
		}

		/**
		* Warning: This call is writing synchronously to the disk.
		* You should use {@link #setCurrentAccountAsync(Context, String)} if possible.
		@@ -81,12 +87,18 @@ public final class SingleAccountHelper {
		AccountImporter.authenticateSingleSignAccount(activity, getCurrentSingleSignOnAccount(activity));
		}

		/**
		* For a lifecycle aware implementation see {@link #getCurrentSingleSignOnAccount$(Context)}
		*/
		public static void registerSharedPreferenceChangeListener(Context context,
		SharedPreferences.OnSharedPreferenceChangeListener listener) {
		AccountImporter.getSharedPreferences(context)
		.registerOnSharedPreferenceChangeListener(listener);
		}

		/**
		* For a lifecycle aware implementation see {@link #getCurrentSingleSignOnAccount$(Context)}
		*/
		public static void unregisterSharedPreferenceChangeListener(Context context,
		SharedPreferences.OnSharedPreferenceChangeListener listener) {
		AccountImporter.getSharedPreferences(context)

sample/src/main/java/com/nextcloud/android/sso/sample/MainActivity.java

+13 −0

Original line number	Diff line number	Diff line
		@@ -33,6 +33,7 @@ import com.nextcloud.android.sso.api.NextcloudAPI;
		import com.nextcloud.android.sso.exceptions.AccountImportCancelledException;
		import com.nextcloud.android.sso.exceptions.AndroidGetAccountsPermissionNotGranted;
		import com.nextcloud.android.sso.exceptions.NextcloudFilesAppNotInstalledException;
		import com.nextcloud.android.sso.helper.SingleAccountHelper;

		import java.util.concurrent.ExecutorService;
		import java.util.concurrent.Executors;
		@@ -61,6 +62,12 @@ public class MainActivity extends AppCompatActivity {
		e.printStackTrace();
		}
		});

		/*
		* We can also observe the current SingleSignOnAccount (set via SingleAccountHelper) with LiveData
		*/
		SingleAccountHelper.getCurrentSingleSignOnAccount$(this)
		.observe(this, ssoAccount -> Log.i(TAG, "New SingleSignOnAccount set: " + ssoAccount.name));
		}

		@Override
		@@ -71,6 +78,12 @@ public class MainActivity extends AppCompatActivity {
		AccountImporter.onActivityResult(requestCode, resultCode, data, this, ssoAccount -> {
		Log.i(TAG, "Imported account: " + ssoAccount.name);

		/*
		* A little helper to store the currently selected account.
		* We can query this later if we want to keep working with it.
		*/
		SingleAccountHelper.setCurrentAccountAsync(this, ssoAccount.name);

		/* Network requests need to be performed on a background thread */
		executor.submit(() -> {
		runOnUiThread(() -> ((TextView) findViewById(R.id.result)).setText(R.string.loading));