table of contents
al_android_get_jni_env(3) | al_android_get_jni_env(3) |
NAME¶
al_android_get_jni_env - Allegro 5 API
SYNOPSIS¶
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#include <allegro5/allegro_android.h> JNIEnv *al_android_get_jni_env(void)
DESCRIPTION¶
Returns the Android JNI environment used by Allegro to call into Java. As a convenience this function provides it to the user so there is no need to obtain it yourself.
For example if you have a Java method “void send(String message)” in your activity class, you could call it like this from C code:
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JNIEnv * env = al_android_get_jni_env(); jclass class_id = (* env)->GetObjectClass(env, al_android_get_activity()); jmethodID method_id = (* env)->GetMethodID(env, class_id, "send",
"(Ljava/lang/String;)V"); jstring jdata = (* env)->NewStringUTF(env, "Hello Java!"); (* env)->CallVoidMethod(env, al_android_get_activity(), method_id, jdata); (* env)->DeleteLocalRef(env, jdata);
SINCE¶
5.2.2
[Unstable API]: This API is new and subject to refinement.
Allegro reference manual |