JNI DETECTED ERROR IN APPLICATION: can‘t call void com.example.myjnidemo.LameUtils.setConvertProgres

报错如下图所示：

Jni调用代码如下：

void publishJavaProgress(JNIEnv * env, jobject obj, jint progress) {
     //1.找到java的LameUtils的class          com/example/myjnidemo/
    jclass clazz = (*env).FindClass("com/example/myjnidemo/LameUtils");
    if (clazz == 0) {
        LOGI("can't find clazz");
    }
    LOGI(" convert progress %d" , progress);

    //2 找到class 里面的方法定义
    jmethodID methodid = (*env).GetMethodID(clazz, "setConvertProgress","(I)V");
    if (methodid == 0) {
        LOGI("can't find methodid");
    }
    LOGI(" find methodid");

    //3 .调用方法
    (*env).CallVoidMethod(obj, methodid, progress);
    env->DeleteLocalRef(clazz);
}

java代码如下:

public class LameUtils {
    /**
     * wav转换成mp3的本地方法
     *
     * @param wav
     * @param mp3
     */
    public static native void convertmp3(String wav, String mp3);

    /**
     * 获取LAME的版本信息
     *
     * @return
     */
    public static native String getLameVersion();


    public void setConvertProgress(int progress) {
        //pd.setProgress(progress);
        Log.d("ddebug","转换进度为："+ progress);
    }


}

经排查是因为 convertmp3方法是静态方法，而setConvertProgress是非静态方法，所以会报错

修改如下：

void publishJavaProgress(JNIEnv * env, jobject obj, jint progress) {
     //1.找到java的LameUtils的class          com/example/myjnidemo/
    jclass clazz = (*env).FindClass("com/example/myjnidemo/LameUtils");
    if (clazz == 0) {
        LOGI("can't find clazz");
    }
    LOGI(" convert progress %d" , progress);

    //2 找到class 里面的方法定义
    jmethodID methodid = (*env).GetStaticMethodID(clazz,"setConvertProgress","(I)V");
    if (methodid == 0) {
        LOGI("can't find methodid");
    }
    LOGI(" find methodid");

    //3 .调用方法
    (*env).CallStaticVoidMethod(clazz, methodid, progress);
    env->DeleteLocalRef(clazz);
}

public class LameUtils {
    /**
     * wav转换成mp3的本地方法
     *
     * @param wav
     * @param mp3
     */
    public static native void convertmp3(String wav, String mp3);

    /**
     * 获取LAME的版本信息
     *
     * @return
     */
    public static native String getLameVersion();

    /**
     * 设置进度条的进度，提供给C语言调用
     *
     * @param progress
     */
    public static void setConvertProgress(int progress) {
        //pd.setProgress(progress);
        Log.d("ddebug","转换进度为："+ progress);
    }


}