Android work in progress changes

examples/android/app/src/main/jni/Android.mk

@@ -0,0 +1,20 @@
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE    := sfml-example
+
+LOCAL_SRC_FILES := main.cpp
+
+LOCAL_SHARED_LIBRARIES := sfml-system-d
+LOCAL_SHARED_LIBRARIES += sfml-window-d
+LOCAL_SHARED_LIBRARIES += sfml-graphics-d
+LOCAL_SHARED_LIBRARIES += sfml-audio-d
+LOCAL_SHARED_LIBRARIES += sfml-network-d
+LOCAL_SHARED_LIBRARIES += sfml-activity-d
+LOCAL_SHARED_LIBRARIES += openal
+LOCAL_WHOLE_STATIC_LIBRARIES := sfml-main-d
+
+include $(BUILD_SHARED_LIBRARY)
+
+$(call import-module,third_party/sfml)

examples/android/app/src/main/jni/Application.mk

@@ -0,0 +1,8 @@
+NDK_TOOLCHAIN_VERSION := 4.9
+APP_PLATFORM := android-14
+# APP_STL has to match CMAKE_ANDROID_STL_TYPE
+APP_STL := c++_static
+APP_ABI := armeabi-v7a
+APP_MODULES := sfml-activity-d sfml-example
+APP_OPTIM := debug
+APP_CFLAG := -g -ggdb -O0

examples/android/app/src/main/jni/main.cpp

@@ -0,0 +1,175 @@
+#include <SFML/System.hpp>
+#include <SFML/Window.hpp>
+#include <SFML/Graphics.hpp>
+#include <SFML/Audio.hpp>
+#include <SFML/Network.hpp>
+
+// Do we want to showcase direct JNI/NDK interaction?
+// Undefine this to get real cross-platform code.
+#define USE_JNI
+
+#if defined(USE_JNI)
+// These headers are only needed for direct NDK/JDK interaction
+#include <jni.h>
+#include <android/native_activity.h>
+
+// Since we want to get the native activity from SFML, we'll have to use an
+// extra header here:
+#include <SFML/System/NativeActivity.hpp>
+
+// NDK/JNI sub example - call Java code from native code
+int vibrate(sf::Time duration)
+{
+    // First we'll need the native activity handle
+    ANativeActivity *activity = sf::getNativeActivity();
+    
+    // Retrieve the JVM and JNI environment
+    JavaVM* vm = activity->vm;
+    JNIEnv* env = activity->env;
+
+    // First, attach this thread to the main thread
+    JavaVMAttachArgs attachargs;
+    attachargs.version = JNI_VERSION_1_6;
+    attachargs.name = "NativeThread";
+    attachargs.group = NULL;
+    jint res = vm->AttachCurrentThread(&env, &attachargs);
+
+    if (res == JNI_ERR)
+        return EXIT_FAILURE;
+
+    // Retrieve class information
+    jclass natact = env->FindClass("android/app/NativeActivity");
+    jclass context = env->FindClass("android/content/Context");
+    
+    // Get the value of a constant
+    jfieldID fid = env->GetStaticFieldID(context, "VIBRATOR_SERVICE", "Ljava/lang/String;");
+    jobject svcstr = env->GetStaticObjectField(context, fid);
+    
+    // Get the method 'getSystemService' and call it
+    jmethodID getss = env->GetMethodID(natact, "getSystemService", "(Ljava/lang/String;)Ljava/lang/Object;");
+    jobject vib_obj = env->CallObjectMethod(activity->clazz, getss, svcstr);
+    
+    // Get the object's class and retrieve the member name
+    jclass vib_cls = env->GetObjectClass(vib_obj);
+    jmethodID vibrate = env->GetMethodID(vib_cls, "vibrate", "(J)V"); 
+    
+    // Determine the timeframe
+    jlong length = duration.asMilliseconds();
+    
+    // Bzzz!
+    env->CallVoidMethod(vib_obj, vibrate, length);
+
+    // Free references
+    env->DeleteLocalRef(vib_obj);
+    env->DeleteLocalRef(vib_cls);
+    env->DeleteLocalRef(svcstr);
+    env->DeleteLocalRef(context);
+    env->DeleteLocalRef(natact);
+    
+    // Detach thread again
+    vm->DetachCurrentThread();
+}
+#endif
+
+// This is the actual Android example. You don't have to write any platform
+// specific code, unless you want to use things not directly exposed.
+// ('vibrate()' in this example; undefine 'USE_JNI' above to disable it)
+int main(int argc, char *argv[])
+{
+    sf::VideoMode screen(sf::VideoMode::getDesktopMode());
+
+    sf::RenderWindow window(screen, "");
+    window.setFramerateLimit(30);
+
+    sf::Texture texture;
+    if(!texture.loadFromFile("image.png"))
+        return EXIT_FAILURE;
+
+    sf::Sprite image(texture);
+    image.setPosition(screen.width / 2, screen.height / 2);
+    image.setOrigin(texture.getSize().x/2, texture.getSize().y/2);
+
+    sf::Font font;
+    if (!font.loadFromFile("sansation.ttf"))
+        return EXIT_FAILURE;
+
+    sf::Text text("Tap anywhere to move the logo.", font, 64);
+    text.setFillColor(sf::Color::Black);
+    text.setPosition(10, 10);
+
+    // Loading canary.wav fails for me for now; haven't had time to test why
+
+    /*sf::Music music;
+    if(!music.openFromFile("canary.wav"))
+        return EXIT_FAILURE;
+
+    music.play();*/
+
+    sf::View view = window.getDefaultView();
+
+    sf::Color background = sf::Color::White;
+
+    // We shouldn't try drawing to the screen while in background
+    // so we'll have to track that. You can do minor background
+    // work, but keep battery life in mind.
+    bool active = true;
+
+    while (window.isOpen())
+    {
+        sf::Event event;
+
+        while (active ? window.pollEvent(event) : window.waitEvent(event))
+        {
+            switch (event.type)
+            {
+                case sf::Event::Closed:
+                    window.close();
+                    break;
+                case sf::Event::KeyPressed:
+                    if (event.key.code == sf::Keyboard::Escape)
+                        window.close();
+                    break;
+                case sf::Event::Resized:
+                    view.setSize(event.size.width, event.size.height);
+                    view.setCenter(event.size.width/2, event.size.height/2);
+                    window.setView(view);
+                    break;
+                case sf::Event::LostFocus:
+                    background = sf::Color::Black;
+                    break;
+                case sf::Event::GainedFocus:
+                    background = sf::Color::White;
+                    break;
+                
+                // On Android MouseLeft/MouseEntered are (for now) triggered,
+                // whenever the app loses or gains focus.
+                case sf::Event::MouseLeft:
+                    active = false;
+                    break;
+                case sf::Event::MouseEntered:
+                    active = true;
+                    break;
+                case sf::Event::TouchBegan:
+                    if (event.touch.finger == 0)
+                    {
+                        image.setPosition(event.touch.x, event.touch.y);
+#if defined(USE_JNI)
+                        vibrate(sf::milliseconds(10));
+#endif
+                    }
+                    break;
+            }
+        }
+
+        if (active)
+        {
+            window.clear(background);
+            window.draw(image);
+            window.draw(text);
+            window.display();
+        }
+        else {
+            sf::sleep(sf::milliseconds(100));
+        }
+    }
+}