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// // Created by asura on 2020/4/24. // #include "com_example_jnidemo2_MainActivity.h" /* * Class: com_example_jnidemo2_MainActivity * Method: get_reflection_field * Signature: ()Ljava/lang/String; */ extern "C" JNIEXPORT jstring JNICALL Java_com_example_jnidemo2_MainActivity_get_1reflection_1field(JNIEnv *env, jobject obj) { auto clazz = env->FindClass("com/example/jnidemo2/MainActivity"); auto fieldId = env->GetFieldID(clazz, "ReflectionField", "Ljava/lang/String;"); auto pJstring = (jstring) env->GetObjectField(obj, fieldId); return pJstring; } /* * Class: com_example_jnidemo2_MainActivity * Method: get_static_reflection_field * Signature: ()Ljava/lang/String; */ extern "C" JNIEXPORT jstring JNICALL Java_com_example_jnidemo2_MainActivity_get_1static_1reflection_1field(JNIEnv *env, jobject obj) { auto clazz = env->FindClass("com/example/jnidemo2/MainActivity"); auto fieldId = env->GetStaticFieldID(clazz, "StaticReflectionField", "Ljava/lang/String;"); auto pJstring = (jstring) env->GetStaticObjectField(clazz, fieldId); return pJstring; } /* * Class: com_example_jnidemo2_MainActivity * Method: set_reflection_field * Signature: (Ljava/lang/String;)V */ extern "C" JNIEXPORT void JNICALL Java_com_example_jnidemo2_MainActivity_set_1reflection_1field(JNIEnv *env, jobject obj,jstring str) { auto clazz = env->FindClass("com/example/jnidemo2/MainActivity"); auto fieldId = env->GetFieldID(clazz, "ReflectionField", "Ljava/lang/String;"); env->SetObjectField(obj,fieldId,str); } /* * Class: com_example_jnidemo2_MainActivity * Method: set_static_reflection_field * Signature: (Ljava/lang/String;)V */ extern "C" JNIEXPORT void JNICALL Java_com_example_jnidemo2_MainActivity_set_1static_1reflection_1field(JNIEnv *env, jobject obj, jstring str) { auto clazz = env->FindClass("com/example/jnidemo2/MainActivity"); auto fieldId = env->GetStaticFieldID(clazz, "StaticReflectionField", "Ljava/lang/String;"); env->SetStaticObjectField(clazz,fieldId,str); }
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