Android: Get the minimum sdk level based on the used Qt version

Currently, Creator gets the minimum sdk version from a hard-coded
value (16) which is used for all projects. However, this is not ideal
because some Qt versions require a specific sdk level to build and run
properly. So, this change ensures that the minimum sdk value is obtained
based the Qt version used in the project.

Fixes: QTCREATORBUG-26127
Change-Id: I948dd18d16c3d9ca587ad7712aa4c9a1bfd53972
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/android/androidbuildapkstep.cpp

@@ -176,7 +176,8 @@ AndroidBuildApkWidget::AndroidBuildApkWidget(AndroidBuildApkStep *step)
 
 QWidget *AndroidBuildApkWidget::createApplicationGroup()
 {
-    const int minApiSupported = AndroidManager::apiLevelRange().first;
+    QtSupport::BaseQtVersion *qt = QtSupport::QtKitAspect::qtVersion(m_step->target()->kit());
+    const int minApiSupported = AndroidManager::defaultMinimumSDK(qt);
     QStringList targets = AndroidConfig::apiLevelNamesFor(AndroidConfigurations::sdkManager()->
                                                           filteredSdkPlatforms(minApiSupported));
     targets.removeDuplicates();

src/plugins/android/androidconfigurations.cpp

@@ -778,12 +778,12 @@ bool AndroidConfig::isValidNdk(const QString &ndkLocation) const
 
 QString AndroidConfig::bestNdkPlatformMatch(int target, const BaseQtVersion *qtVersion) const
 {
-    target = std::max(AndroidManager::apiLevelRange().first, target);
+    target = std::max(AndroidManager::defaultMinimumSDK(qtVersion), target);
     foreach (int apiLevel, availableNdkPlatforms(qtVersion)) {
         if (apiLevel <= target)
             return QString::fromLatin1("android-%1").arg(apiLevel);
     }
-    return QString("android-%1").arg(AndroidManager::apiLevelRange().first);
+    return QString("android-%1").arg(AndroidManager::defaultMinimumSDK(qtVersion));
 }
 
 FilePath AndroidConfig::sdkLocation() const

src/plugins/android/androidmanager.cpp

@@ -399,9 +399,14 @@ void AndroidManager::setDeviceApiLevel(Target *target, int level)
     target->setNamedSettings(ApiLevelKey, level);
 }
 
-QPair<int, int> AndroidManager::apiLevelRange()
+int AndroidManager::defaultMinimumSDK(const QtSupport::BaseQtVersion *qtVersion)
 {
-    return qMakePair(16, 29);
+    if (qtVersion && qtVersion->qtVersion() >= QtSupport::QtVersionNumber{6, 0})
+        return 23;
+    else if (qtVersion && qtVersion->qtVersion() >= QtSupport::QtVersionNumber{5, 13})
+        return 21;
+    else
+        return 16;
 }
 
 QString AndroidManager::androidNameForApiLevel(int x)

src/plugins/android/androidmanager.h

@@ -31,6 +31,7 @@
 #include <QObject>
 #include <QVersionNumber>
 
+#include <qtsupport/baseqtversion.h>
 #include <projectexplorer/abi.h>
 
 QT_BEGIN_NAMESPACE
@@ -87,6 +88,7 @@ public:
 
     static int minimumSDK(const ProjectExplorer::Target *target);
     static int minimumSDK(const ProjectExplorer::Kit *kit);
+    static int defaultMinimumSDK(const QtSupport::BaseQtVersion *qtVersion);
 
     static QStringList applicationAbis(const ProjectExplorer::Target *target);
     static QString archTriplet(const QString &abi);
@@ -100,7 +102,6 @@ public:
     static QString devicePreferredAbi(const QStringList &deviceAbis, const QStringList &appAbis);
     static ProjectExplorer::Abi androidAbi2Abi(const QString &androidAbi);
 
-    static QPair<int, int> apiLevelRange();
     static QString androidNameForApiLevel(int x);
 
     static void installQASIPackage(ProjectExplorer::Target *target, const QString &packagePath);

src/plugins/android/androidmanifesteditorwidget.cpp

@@ -720,18 +720,21 @@ void AndroidManifestEditorWidget::updateInfoBar()
 
 void AndroidManifestEditorWidget::updateSdkVersions()
 {
-    QPair<int, int> apiLevels = AndroidManager::apiLevelRange();
-    for (int i = apiLevels.first; i < apiLevels.second + 1; ++i)
-        m_androidMinSdkVersion->addItem(tr("API %1: %2")
-                                        .arg(i)
-                                        .arg(AndroidManager::androidNameForApiLevel(i)),
-                                        i);
+    static const QPair<int, int> sdkPair = qMakePair(16, 31);
+    int minSdk = sdkPair.first;
+    const int targetSdk = sdkPair.second;
+    const Target *target = androidTarget(m_textEditorWidget->textDocument()->filePath());
+    if (target) {
+        const QtSupport::BaseQtVersion *qt = QtSupport::QtKitAspect::qtVersion(target->kit());
+        minSdk = AndroidManager::defaultMinimumSDK(qt);
+    }
 
-    for (int i = apiLevels.first; i < apiLevels.second + 1; ++i)
-        m_androidTargetSdkVersion->addItem(tr("API %1: %2")
-                                           .arg(i)
-                                           .arg(AndroidManager::androidNameForApiLevel(i)),
-                                           i);
+    for (int i = minSdk; i <= targetSdk; ++i) {
+        const QString apiStr = tr("API %1: %2").arg(i)
+                                               .arg(AndroidManager::androidNameForApiLevel(i));
+        m_androidMinSdkVersion->addItem(apiStr, i);
+        m_androidTargetSdkVersion->addItem(apiStr, i);
+    }
 }
 
 void AndroidManifestEditorWidget::updateInfoBar(const QString &errorMessage, int line, int column)