Added widget new message count per account

app/src/main/java/eu/faircode/email/ActivityWidget.java

@@ -0,0 +1,130 @@
+package eu.faircode.email;
+
+/*
+    This file is part of FairEmail.
+
+    FairEmail 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.
+
+    FairEmail 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 FairEmail.  If not, see <http://www.gnu.org/licenses/>.
+
+    Copyright 2018-2019 by Marcel Bokhorst (M66B)
+*/
+
+import android.appwidget.AppWidgetManager;
+import android.content.Context;
+import android.content.Intent;
+import android.content.SharedPreferences;
+import android.os.Bundle;
+import android.view.View;
+import android.widget.ArrayAdapter;
+import android.widget.Button;
+import android.widget.Spinner;
+
+import androidx.constraintlayout.widget.Group;
+import androidx.preference.PreferenceManager;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ActivityWidget extends ActivityBase {
+    private int appWidgetId;
+
+    private Spinner spAccount;
+    private Button btnSave;
+    private ContentLoadingProgressBar pbWait;
+    private Group grpReady;
+
+    private ArrayAdapter<EntityAccount> adapterAccount;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+
+        Bundle extras = getIntent().getExtras();
+        if (extras == null) {
+            finish();
+            return;
+        }
+
+        appWidgetId = extras.getInt(
+                AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID);
+
+        getSupportActionBar().setSubtitle(R.string.title_widget_title_count);
+        setContentView(R.layout.activity_widget);
+
+        spAccount = findViewById(R.id.spAccount);
+        btnSave = findViewById(R.id.btnSave);
+        pbWait = findViewById(R.id.pbWait);
+        grpReady = findViewById(R.id.grpReady);
+
+        final Intent resultValue = new Intent();
+        resultValue.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
+
+        btnSave.setOnClickListener(new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                EntityAccount account = (EntityAccount) spAccount.getSelectedItem();
+
+                SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(ActivityWidget.this);
+                SharedPreferences.Editor editor = prefs.edit();
+                if (account != null && account.id > 0)
+                    editor.putString("widget." + appWidgetId + ".name", account.name);
+                else
+                    editor.remove("widget." + appWidgetId + ".name");
+                editor.putLong("widget." + appWidgetId + ".account", account == null ? -1L : account.id);
+                editor.apply();
+
+                Widget.init(ActivityWidget.this, appWidgetId);
+
+                setResult(RESULT_OK, resultValue);
+                finish();
+            }
+        });
+
+        adapterAccount = new ArrayAdapter<>(this, R.layout.spinner_item1, android.R.id.text1, new ArrayList<EntityAccount>());
+        adapterAccount.setDropDownViewResource(R.layout.spinner_item1_dropdown);
+        spAccount.setAdapter(adapterAccount);
+
+        grpReady.setVisibility(View.GONE);
+        pbWait.setVisibility(View.VISIBLE);
+
+        setResult(RESULT_CANCELED, resultValue);
+
+        new SimpleTask<List<EntityAccount>>() {
+            @Override
+            protected List<EntityAccount> onExecute(Context context, Bundle args) {
+                DB db = DB.getInstance(context);
+
+                return db.account().getSynchronizingAccounts();
+            }
+
+            @Override
+            protected void onExecuted(Bundle args, List<EntityAccount> accounts) {
+                EntityAccount all = new EntityAccount();
+                all.id = -1L;
+                all.name = getString(R.string.title_widget_account_all);
+                all.primary = false;
+                accounts.add(0, all);
+
+                adapterAccount.addAll(accounts);
+
+                grpReady.setVisibility(View.VISIBLE);
+                pbWait.setVisibility(View.GONE);
+            }
+
+            @Override
+            protected void onException(Bundle args, Throwable ex) {
+                Log.unexpectedError(getSupportFragmentManager(), ex);
+            }
+        }.execute(this, new Bundle(), "widget:accounts");
+    }
+}