From 48db373ce3cadab3a54cd443f9136d1e5d74ca50 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Christian=20Str=C3=B8mme?= Date: Wed, 8 Jan 2014 14:06:38 +0100 Subject: Android: Add convenience function to get the API level. It's common to check the Android API level at runtime to determine what functionality is available. This change provides a convenient way to get the Android SDK version (API level) from c++. Change-Id: I88f65ae87e0fa8ac0affefffbd1b1bba855c9f46 Reviewed-by: BogDan Vatra --- src/corelib/kernel/qjnihelpers.cpp | 21 +++++++++++++++++++++ src/corelib/kernel/qjnihelpers_p.h | 1 + 2 files changed, 22 insertions(+) (limited to 'src') diff --git a/src/corelib/kernel/qjnihelpers.cpp b/src/corelib/kernel/qjnihelpers.cpp index 9ec491f6a9..74eb6f5b27 100644 --- a/src/corelib/kernel/qjnihelpers.cpp +++ b/src/corelib/kernel/qjnihelpers.cpp @@ -46,6 +46,7 @@ QT_BEGIN_NAMESPACE static JavaVM *g_javaVM = Q_NULLPTR; static jobject g_jActivity = Q_NULLPTR; static jobject g_jClassLoader = Q_NULLPTR; +static jint g_androidSdkVersion = 0; static inline bool exceptionCheck(JNIEnv *env) { @@ -60,6 +61,19 @@ static inline bool exceptionCheck(JNIEnv *env) return false; } +static void setAndroidSdkVersion(JNIEnv *env) +{ + jclass androidVersionClass = env->FindClass("android/os/Build$VERSION"); + if (exceptionCheck(env)) + return; + + jfieldID androidSDKFieldID = env->GetStaticFieldID(androidVersionClass, "SDK_INT", "I"); + if (exceptionCheck(env)) + return; + + g_androidSdkVersion = env->GetStaticIntField(androidVersionClass, androidSDKFieldID); +} + jint QtAndroidPrivate::initJNI(JavaVM *vm, JNIEnv *env) { jclass jQtNative = env->FindClass("org/qtproject/qt5/android/QtNative"); @@ -93,6 +107,8 @@ jint QtAndroidPrivate::initJNI(JavaVM *vm, JNIEnv *env) if (exceptionCheck(env)) return JNI_ERR; + setAndroidSdkVersion(env); + g_jClassLoader = env->NewGlobalRef(classLoader); env->DeleteLocalRef(classLoader); g_jActivity = env->NewGlobalRef(activity); @@ -118,4 +134,9 @@ jobject QtAndroidPrivate::classLoader() return g_jClassLoader; } +jint QtAndroidPrivate::androidSdkVersion() +{ + return g_androidSdkVersion; +} + QT_END_NAMESPACE diff --git a/src/corelib/kernel/qjnihelpers_p.h b/src/corelib/kernel/qjnihelpers_p.h index 39059db215..c92dbdde7f 100644 --- a/src/corelib/kernel/qjnihelpers_p.h +++ b/src/corelib/kernel/qjnihelpers_p.h @@ -64,6 +64,7 @@ namespace QtAndroidPrivate Q_CORE_EXPORT JavaVM *javaVM(); Q_CORE_EXPORT jint initJNI(JavaVM *vm, JNIEnv *env); jobject classLoader(); + jint androidSdkVersion(); } QT_END_NAMESPACE -- cgit v1.2.3