Fix issue #550 - Quick account switch

app/src/main/java/app/fedilab/android/BaseMainActivity.java

@@ -758,6 +758,57 @@ public abstract class BaseMainActivity extends BaseActivity implements NetworkSt
                 }
             }).start();
         }
+        //Fetch recent used accounts
+        new Thread(() -> {
+            try {
+                List<BaseAccount> accounts = new Account(BaseMainActivity.this).getLastUsedAccounts();
+                Handler mainHandler = new Handler(Looper.getMainLooper());
+                Runnable myRunnable = () -> {
+                    if (accounts != null && accounts.size() > 0) {
+                        Helper.loadPP(this, headerMainBinding.otherAccount1, accounts.get(0));
+                        headerMainBinding.otherAccount1.setVisibility(View.VISIBLE);
+                        headerMainBinding.otherAccount1.setOnClickListener(v -> {
+                            headerMenuOpen = false;
+                            Toasty.info(BaseMainActivity.this, getString(R.string.toast_account_changed, "@" + accounts.get(0).mastodon_account.acct + "@" + accounts.get(0).instance), Toasty.LENGTH_LONG).show();
+                            BaseMainActivity.currentToken = accounts.get(0).token;
+                            BaseMainActivity.currentUserID = accounts.get(0).user_id;
+                            api = accounts.get(0).api;
+                            SharedPreferences.Editor editor = sharedpreferences.edit();
+                            editor.putString(PREF_USER_TOKEN, accounts.get(0).token);
+                            editor.commit();
+                            //The user is now aut
+                            //The user is now authenticated, it will be redirected to MainActivity
+                            Intent mainActivity = new Intent(this, MainActivity.class);
+                            startActivity(mainActivity);
+                            finish();
+                        });
+                        if (accounts.size() > 1) {
+                            Helper.loadPP(this, headerMainBinding.otherAccount2, accounts.get(1));
+                            headerMainBinding.otherAccount2.setVisibility(View.VISIBLE);
+                            headerMainBinding.otherAccount2.setOnClickListener(v -> {
+                                headerMenuOpen = false;
+                                Toasty.info(BaseMainActivity.this, getString(R.string.toast_account_changed, "@" + accounts.get(1).mastodon_account.acct + "@" + accounts.get(1).instance), Toasty.LENGTH_LONG).show();
+                                BaseMainActivity.currentToken = accounts.get(1).token;
+                                BaseMainActivity.currentUserID = accounts.get(1).user_id;
+                                api = accounts.get(1).api;
+                                SharedPreferences.Editor editor = sharedpreferences.edit();
+                                editor.putString(PREF_USER_TOKEN, accounts.get(1).token);
+                                editor.commit();
+                                //The user is now aut
+                                //The user is now authenticated, it will be redirected to MainActivity
+                                Intent mainActivity = new Intent(this, MainActivity.class);
+                                startActivity(mainActivity);
+                                finish();
+                            });
+                        }
+                    }
+                };
+                mainHandler.post(myRunnable);
+
+            } catch (DBException e) {
+                e.printStackTrace();
+            }
+        }).start();
     }
 
     protected abstract void rateThisApp();

app/src/main/java/app/fedilab/android/client/entities/app/Account.java

@@ -318,6 +318,23 @@ public class Account extends BaseAccount implements Serializable {
         }
     }
 
+    /**
+     * Returns last used account
+     *
+     * @return BaseAccount  {@link BaseAccount}
+     */
+    public List<BaseAccount> getLastUsedAccounts() throws DBException {
+        if (db == null) {
+            throw new DBException("db is null. Wrong initialization.");
+        }
+        try {
+            Cursor c = db.query(Sqlite.TABLE_USER_ACCOUNT, null, null, null, null, null, Sqlite.COL_UPDATED_AT + " DESC", null);
+            return cursorToListUser(c);
+        } catch (Exception e) {
+            return null;
+        }
+    }
+
     /**
      * Remove an account from db
      *

app/src/main/res/layout/nav_header_main.xml

@@ -37,6 +37,11 @@
         android:paddingRight="@dimen/activity_horizontal_margin"
         android:paddingBottom="5dp">
 
+        <androidx.appcompat.widget.LinearLayoutCompat
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:orientation="horizontal">
+
             <ImageView
                 android:id="@+id/account_profile_picture"
                 android:layout_width="80dp"
@@ -47,6 +52,34 @@
                 android:scaleType="fitCenter"
                 tools:src="@tools:sample/avatars" />
 
+            <androidx.appcompat.widget.LinearLayoutCompat
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_weight="1" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/other_account1"
+                android:layout_width="36dp"
+                android:layout_height="36dp"
+                android:layout_gravity="bottom|end"
+                android:scaleType="fitCenter"
+                android:visibility="gone"
+                tools:src="@tools:sample/avatars"
+                tools:visibility="visible" />
+
+            <androidx.appcompat.widget.AppCompatImageView
+                android:id="@+id/other_account2"
+                android:layout_width="36dp"
+                android:layout_height="36dp"
+                android:layout_gravity="bottom|end"
+                android:layout_marginStart="20dp"
+                android:scaleType="fitCenter"
+                android:visibility="gone"
+                tools:src="@tools:sample/avatars"
+                tools:visibility="visible" />
+        </androidx.appcompat.widget.LinearLayoutCompat>
+
+
         <androidx.appcompat.widget.LinearLayoutCompat
             android:id="@+id/change_account"
             android:layout_width="match_parent"
@@ -55,7 +88,7 @@
             android:orientation="horizontal">
 
             <androidx.appcompat.widget.AppCompatTextView
-                style="@style/TextAppearance.Material3.TitleMedium"
+                style="@style/TextAppearance.Material3.TitleSmall"
                 android:id="@+id/account_name"
                 android:layout_width="0dp"
                 android:layout_height="wrap_content"