Question

男人......这个错误让我失望。

logcat的：

01-29 22:25:00.293: ERROR/AndroidRuntime(27386): FATAL EXCEPTION: main
01-29 22:25:00.293: ERROR/AndroidRuntime(27386): java.lang.IllegalStateException: Could not execute method of the activity
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.view.View$1.onClick(View.java:2072)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.view.View.performClick(View.java:2408)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.widget.CompoundButton.performClick(CompoundButton.java:99)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.view.View$PerformClick.run(View.java:8819)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.os.Handler.handleCallback(Handler.java:587)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.os.Handler.dispatchMessage(Handler.java:92)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.os.Looper.loop(Looper.java:123)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.app.ActivityThread.main(ActivityThread.java:4627)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at java.lang.reflect.Method.invokeNative(Native Method)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at java.lang.reflect.Method.invoke(Method.java:521)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:868)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:626)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at dalvik.system.NativeStart.main(Native Method)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386): Caused by: java.lang.reflect.InvocationTargetException
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at com.example.viewer.Viewer.denoiseSlice(Viewer.java:170)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at java.lang.reflect.Method.invokeNative(Native Method)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at java.lang.reflect.Method.invoke(Method.java:521)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at android.view.View$1.onClick(View.java:2067)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     ... 12 more
01-29 22:25:00.293: ERROR/AndroidRuntime(27386): Caused by: java.lang.UnsatisfiedLinkError: RicianDenoise
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     at com.example.viewer.Viewer.RicianDenoise(Native Method)
01-29 22:25:00.293: ERROR/AndroidRuntime(27386):     ... 16 more

加载库并声明它：

    public native void RicianDenoise(int w, int h, int p, 
        short [] s_noised_slice, double [] d_noised_slice, 
        short [] s_denoised_slice, double [] d_denoised_slice);

    static {
        System.loadLibrary("denoise");
    }

C函数：

void 
Java_com_example_viewer_Viewer_RicianDenoise (JNIEnv *env, jclass cls, jint M, 
                                              jint N, jint P, jshort * s_noised_slice,
                                              jdouble * d_noised_slice, 
                                              jshort * s_denoised_slice, 
                                              jdouble * d_denoised_slice) {
    /* ... */
}

我跑了

ndk-build -B -C [project] / jni

我无法得到任何工作。对此问题有任何建议或经验吗？ logcat中的调用行是我只是试图调用函数，顺便说一句。谢谢......请成为我的英雄:(

Answer 1

java中的数组不能转换为C / C ++中的数组类型指针，在JNI中在本机端使用此方案来声明您的阵列：
for double []使用jdoubleArray
简而言之[]使用jshortArray

Answer 2

您的库是否使用其他C / C ++库，是否可以使用系统路径访问？

JNI和Android ...... UnsatisfiedLinkError

2 个答案: