Added nativeGetHintBoolean for Java code

android-project/app/src/main/java/org/libsdl/app/SDLActivity.java

@@ -499,8 +499,8 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
         // If we do, the normal hardware back button will no longer work and people have to use home,
         // but the mouse right click will work.
         //
-        String trapBack = SDLActivity.nativeGetHint("SDL_ANDROID_TRAP_BACK_BUTTON");
-        if ((trapBack != null) && trapBack.equals("1")) {
+        boolean trapBack = SDLActivity.nativeGetHintBoolean("SDL_ANDROID_TRAP_BACK_BUTTON", false);
+        if (trapBack) {
             // Exit and let the mouse handler handle this button (if appropriate)
             return;
         }
@@ -803,6 +803,7 @@ public class SDLActivity extends Activity implements View.OnSystemUiVisibilityCh
     public static native void onNativeSurfaceChanged();
     public static native void onNativeSurfaceDestroyed();
     public static native String nativeGetHint(String name);
+    public static native boolean nativeGetHintBoolean(String name, boolean default_value);
     public static native void nativeSetenv(String name, String value);
     public static native void onNativeOrientationChanged(int orientation);
     public static native void nativeAddTouch(int touchId, String name);

src/core/android/SDL_android.c

@@ -148,6 +148,10 @@ JNIEXPORT jstring JNICALL SDL_JAVA_INTERFACE(nativeGetHint)(
         JNIEnv *env, jclass cls,
         jstring name);
 
+JNIEXPORT jboolean JNICALL SDL_JAVA_INTERFACE(nativeGetHintBoolean)(
+        JNIEnv *env, jclass cls,
+        jstring name, jboolean default_value);
+
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetenv)(
         JNIEnv *env, jclass cls,
         jstring name, jstring value);
@@ -189,6 +193,7 @@ static JNINativeMethod SDLActivity_tab[] = {
     { "nativeResume",               "()V", SDL_JAVA_INTERFACE(nativeResume) },
     { "nativeFocusChanged",         "(Z)V", SDL_JAVA_INTERFACE(nativeFocusChanged) },
     { "nativeGetHint",              "(Ljava/lang/String;)Ljava/lang/String;", SDL_JAVA_INTERFACE(nativeGetHint) },
+    { "nativeGetHintBoolean",       "(Ljava/lang/String;Z)Z", SDL_JAVA_INTERFACE(nativeGetHintBoolean) },
     { "nativeSetenv",               "(Ljava/lang/String;Ljava/lang/String;)V", SDL_JAVA_INTERFACE(nativeSetenv) },
     { "onNativeOrientationChanged", "(I)V", SDL_JAVA_INTERFACE(onNativeOrientationChanged) },
     { "nativeAddTouch",             "(ILjava/lang/String;)V", SDL_JAVA_INTERFACE(nativeAddTouch) },
@@ -1306,6 +1311,19 @@ JNIEXPORT jstring JNICALL SDL_JAVA_INTERFACE(nativeGetHint)(
     return result;
 }
 
+JNIEXPORT jboolean JNICALL SDL_JAVA_INTERFACE(nativeGetHintBoolean)(
+                                    JNIEnv *env, jclass cls,
+                                    jstring name, jboolean default_value)
+{
+    jboolean result;
+
+    const char *utfname = (*env)->GetStringUTFChars(env, name, NULL);
+    result = SDL_GetHintBoolean(utfname, default_value);
+    (*env)->ReleaseStringUTFChars(env, name, utfname);
+
+    return result;
+}
+
 JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetenv)(
                                     JNIEnv *env, jclass cls,
                                     jstring name, jstring value)