Question

·H

#include <jni.h>
/* Header for class com_example_ts_camerandk_NativeCamera */
#include <android/log.h>
#ifndef _Included_com_example_ts_camerandk_NativeCamera
#define _Included_com_example_ts_camerandk_NativeCamera
#ifdef __cplusplus
#define  LOG_TAG    "native-camera2-jni"
#define  LOGI(...)  __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__)
#define  LOGE(...)  __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__)
extern "C" {
#endif
/*
 * Class:     com_example_ts_camerandk_NativeCamera
 * Method:    startPreview
 * Signature: (Landroid/view/Surface;)Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL Java_com_example_ts_camerandk_NativeCamera_startPreview
  (JNIEnv *, jobject, jobject);

/*
 * Class:     com_example_ts_camerandk_NativeCamera
 * Method:    stopPreview
 * Signature: ()V
 */
JNIEXPORT void JNICALL Java_com_example_ts_camerandk_NativeCamera_stopPreview
  (JNIEnv *, jobject);

#ifdef __cplusplus
}
#endif
#endif

.cpp

 #include "com_example_ts_camerandk_NativeCamera.h"

JNIEXPORT jstring JNICALL Java_com_example_ts_camerandk_NativeCamera_startPreview(JNIEnv *env,
         jclass clazz,
         jobject surface){
        LOGI("Java_com_example_ts_camerandk_NativeCamera_startPreview");
        return env->NewStringUTF("aaaaaaaa");
}

/*
 * Class:     com_example_ts_camerandk_NativeCamera
 * Method:    stopPreview
 * Signature: ()V
 */
JNIEXPORT void JNICALL Java_com_example_ts_camerandk_NativeCamera_stopPreview(JNIEnv *env,
 jclass clazz){
    LOGI("Java_com_example_ts_camerandk_NativeCamera_stopPreview");
}

编译后我在jniLibs中获得了一个libnative-camera-lib.so，但运行的应用程序在Android Studio中出错。

AndroidRuntime：FATAL EXCEPTION：主要处理：com.example.ts.camerandk，PID：7413 java.lang.UnsatisfiedLinkError：找不到void的实现 com.example.ts.camerandk.NativeCamera.stopPreview（）（试过 Java_com_example_ts_camerandk_NativeCamera_stopPreview和 Java_com_example_ts_camerandk_NativeCamera_stopPreview__）在com.example.ts.camerandk.NativeCamera.stopPreview（原生方法）

java.lang.UnsatisfiedLinkError：未找到任何实现

0 个答案: