Merge pull request #2547 from nextcloud/lambdas-fixes

Anonymous inner classes containing only one method should become lambdas

src/main/java/com/owncloud/android/MainApp.java

@@ -511,20 +511,13 @@ public class MainApp extends MultiDexApplication {
                     new AlertDialog.Builder(context, R.style.Theme_ownCloud_Dialog)
                             .setTitle(R.string.drawer_synced_folders)
                             .setMessage(R.string.synced_folders_new_info)
-                            .setPositiveButton(R.string.drawer_open, new DialogInterface.OnClickListener() {
-                                public void onClick(DialogInterface dialog, int which) {
-                                    // show Auto Upload
-                                    Intent folderSyncIntent = new Intent(context,
-                                            SyncedFoldersActivity.class);
-                                    dialog.dismiss();
-                                    context.startActivity(folderSyncIntent);
-                                }
-                            })
-                            .setNegativeButton(R.string.drawer_close, new DialogInterface.OnClickListener() {
-                                public void onClick(DialogInterface dialog, int which) {
-                                    dialog.dismiss();
-                                }
+                            .setPositiveButton(R.string.drawer_open, (dialog, which) -> {
+                                // show Auto Upload
+                                Intent folderSyncIntent = new Intent(context, SyncedFoldersActivity.class);
+                                dialog.dismiss();
+                                context.startActivity(folderSyncIntent);
                             })
+                            .setNegativeButton(R.string.drawer_close, (dialog, which) -> dialog.dismiss())
                             .setIcon(R.drawable.nav_synced_folders)
                             .show();
                 } catch (WindowManager.BadTokenException e) {

src/main/java/com/owncloud/android/authentication/AccountAuthenticator.java

@@ -112,13 +112,7 @@ public class AccountAuthenticator extends AbstractAccountAuthenticator {
             final String message = String.format(mContext.getString(R.string.auth_unsupported_multiaccount), mContext.getString(R.string.app_name)); 
             bundle.putString(AccountManager.KEY_ERROR_MESSAGE, message);
            
-            mHandler.post(new Runnable() {
-
-                @Override
-                public void run() {
-                    Toast.makeText(mContext, message, Toast.LENGTH_SHORT).show();
-                }
-            });
+            mHandler.post(() -> Toast.makeText(mContext, message, Toast.LENGTH_SHORT).show());
             
         }
         

src/main/java/com/owncloud/android/authentication/SsoWebViewClient.java

@@ -125,14 +125,11 @@ public class SsoWebViewClient extends WebViewClient {
             //Log_OC.d(TAG, "Cookies: " + cookies);
             if (mListenerHandler != null && mListenerRef != null) {
                 // this is good idea because onPageFinished is not running in the UI thread
-                mListenerHandler.post(new Runnable() {
-                    @Override
-                    public void run() {
-                        SsoWebViewClientListener listener = mListenerRef.get();
-                        if (listener != null) {
-                        	// Send Cookies to the listener
-                            listener.onSsoFinished(cookies);
-                        }
+                mListenerHandler.post(() -> {
+                    SsoWebViewClientListener listener = mListenerRef.get();
+                    if (listener != null) {
+                        // Send Cookies to the listener
+                        listener.onSsoFinished(cookies);
                     }
                 });
             }

src/main/java/com/owncloud/android/ui/activity/Preferences.java

@@ -51,7 +51,6 @@ import android.support.v7.app.ActionBar;
 import android.support.v7.app.AppCompatDelegate;
 import android.view.Menu;
 import android.view.MenuInflater;
-import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.webkit.URLUtil;