Android: add refresh button for AVD list

* Added refresh button
* Moved startUpdateAvd() from updateUI() to AndroidSettingsWidget()
to avoid long load of AVD Manager UI.

Task-number: QTCREATORBUG-23284
Change-Id: I5128184f90437527d0a4a877bd277de1e6dbfad7
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/android/androidsettingswidget.cpp

@@ -286,6 +286,8 @@ AndroidSettingsWidget::AndroidSettingsWidget()
 
     connect(&m_virtualDevicesWatcher, &QFutureWatcherBase::finished,
             this, &AndroidSettingsWidget::updateAvds);
+    connect(m_ui->AVDRefreshPushButton, &QAbstractButton::clicked,
+            this, &AndroidSettingsWidget::startUpdateAvd);
     connect(&m_futureWatcher, &QFutureWatcherBase::finished,
             this, &AndroidSettingsWidget::avdAdded);
     connect(m_ui->NDKLocationPathChooser, &Utils::PathChooser::rawPathChanged,
@@ -324,6 +326,8 @@ AndroidSettingsWidget::AndroidSettingsWidget()
     // Reloading SDK packages is still synchronous. Use zero timer to let settings dialog open
     // first.
     QTimer::singleShot(0, std::bind(&AndroidSdkManager::reloadPackages, m_sdkManager.get(), false));
+
+    startUpdateAvd();
 }
 
 AndroidSettingsWidget::~AndroidSettingsWidget()
@@ -548,7 +552,6 @@ void AndroidSettingsWidget::updateUI()
                                                     Utils::DetailsWidget::Expanded);
     m_ui->androidDetailsWidget->setState(androidSetupOk ? Utils::DetailsWidget::Collapsed :
                                                           Utils::DetailsWidget::Expanded);
-    startUpdateAvd();
 }
 
 void AndroidSettingsWidget::manageAVD()

src/plugins/android/androidsettingswidget.ui

@@ -304,6 +304,13 @@
            </property>
           </widget>
          </item>
+         <item>
+          <widget class="QPushButton" name="AVDRefreshPushButton">
+           <property name="text">
+            <string>Refresh List</string>
+           </property>
+          </widget>
+         </item>
          <item>
           <spacer name="verticalSpacer">
            <property name="orientation">
@@ -351,8 +358,6 @@
    <container>1</container>
   </customwidget>
  </customwidgets>
- <resources>
-  <include location="android.qrc"/>
- </resources>
+ <resources/>
  <connections/>
 </ui>