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Added the ability to set SDL hints from AndroidManifest.xml (thanks Rachel!)

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This is especially useful for things like the accelerometer hint which could be needed before application main().
This commit is contained in:
Sam Lantinga 2017-10-24 00:17:07 -07:00
parent 45536710f3
commit 8fd0c22adc
5 changed files with 88 additions and 2 deletions
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41
src/core/android/SDL_android.c
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@ -211,6 +211,7 @@ static jmethodID midClipboardSetText;
static jmethodID midClipboardGetText;
static jmethodID midClipboardHasText;
static jmethodID midOpenAPKExpansionInputStream;
static jmethodID midGetManifestEnvironmentVariable;
/* audio manager */
static jclass mAudioManagerClass;
@ -310,11 +311,14 @@ JNIEXPORT void JNICALL SDL_JAVA_INTERFACE(nativeSetupJNI)(JNIEnv* mEnv, jclass c
midOpenAPKExpansionInputStream = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
"openAPKExpansionInputStream", "(Ljava/lang/String;)Ljava/io/InputStream;");
midGetManifestEnvironmentVariable = (*mEnv)->GetStaticMethodID(mEnv, mActivityClass,
"getManifestEnvironmentVariable", "(Ljava/lang/String;)Ljava/lang/String;");
if (!midGetNativeSurface ||
!midSetActivityTitle || !midSetOrientation || !midGetContext || !midInputGetInputDeviceIds ||
!midSendMessage || !midShowTextInput || !midIsScreenKeyboardShown ||
!midClipboardSetText || !midClipboardGetText || !midClipboardHasText ||
!midOpenAPKExpansionInputStream) {
!midOpenAPKExpansionInputStream || !midGetManifestEnvironmentVariable) {
__android_log_print(ANDROID_LOG_WARN, "SDL", "Missing some Java callbacks, do you have the latest version of SDLActivity.java?");
}
@ -2034,6 +2038,41 @@ const char * SDL_AndroidGetExternalStoragePath(void)
return s_AndroidExternalFilesPath;
}
// Ugh, but we have to SDL_strdup() our result to pass it safely back
// out into normal SDL_getenv flow. So we'll just do the same sort
// of trick as on Win32 over in SDL_getenv.c.
char *SDL_AndroidEnvMem;
char *SDL_AndroidGetManifestEnvironmentVariable(const char *variableName)
{
if ((mActivityClass == NULL) || (midGetManifestEnvironmentVariable == 0)) {
__android_log_print(ANDROID_LOG_WARN, "SDL", "request to get environment variable before JNI is ready: %s", variableName);
return NULL;
}
JNIEnv *env = Android_JNI_GetEnv();
jstring jVariableName = (*env)->NewStringUTF(env, variableName);
jstring jResult = (jstring)((*env)->CallStaticObjectMethod(env, mActivityClass, midGetManifestEnvironmentVariable, jVariableName));
if (jResult == NULL) {
return NULL;
}
if (SDL_AndroidEnvMem) {
SDL_free(SDL_AndroidEnvMem);
SDL_AndroidEnvMem = NULL;
}
const char *result = (*env)->GetStringUTFChars(env, jResult, NULL);
SDL_AndroidEnvMem = SDL_strdup(result);
(*env)->ReleaseStringUTFChars(env, jResult, result);
(*env)->DeleteLocalRef(env, jResult);
__android_log_print(ANDROID_LOG_INFO, "SDL", "environment variable in metadata: %s = %s", variableName, SDL_AndroidEnvMem);
return SDL_AndroidEnvMem;
}
#endif /* __ANDROID__ */
/* vi: set ts=4 sw=4 expandtab: */