如何处理从jni到AudioTrack的呼叫而不会崩溃？

似乎出现了内存问题。
使mAudioTrack和mArr静态可解决该问题。
我向回调发送了错误的对象。请参阅fadden的评论。我已经删除了对AttachCurrentThread的调用，因为在这种情况下它没有任何区别。

Java：

package com.example.jniaudiotrack;import android.app.Activity;import android.media.AudioFormat;import android.media.AudioManager;import android.media.AudioTrack;import android.os.Bundle;import android.os.Handler;import android.util.Log;public class JniAudioTrackActivity extends Activity {    public AudioTrack mAudioTrack;    public byte[] mArr;    public static Handler mHandler = new Handler();        @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        mArr = new byte[2048];        for (int i = 0; i < 2048; i++) { mArr[i] = (byte) (Math.sin(i) * 128);        }        mAudioTrack = new AudioTrack(AudioManager.STREAM_MUSIC,         11025,         AudioFormat.CHANNEL_CONFIGURATION_MONO,         AudioFormat.ENCODING_PCM_8BIT,         2048,         AudioTrack.MODE_STREAM);        mAudioTrack.play();        new Thread(new Runnable() { public void run() {     audioFunc(); }        }).start();    }    public native void audioFunc();    @SuppressWarnings("unused")    private void audioCB() {        mHandler.post(new Runnable() { public void run() {     mAudioTrack.write(mArr, 0, 2048);     Log.i(TAG, "*** audioCB called ***"); }        });    }    private static final String TAG = "JniAudioTrackActivity";    static {        System.loadLibrary("jni_audiotrack");    }}

Cpp：

#include <jni.h>extern "C" {    JNIEXPORT void Java_com_example_jniaudiotrack_JniAudioTrackActivity_audioFunc(JNIEnv* env, jobject obj);}JNIEXPORT void Java_com_example_jniaudiotrack_JniAudioTrackActivity_audioFunc(JNIEnv* env, jobject obj){    jclass cls = env->GetObjectClass(obj);    jmethodID audioCBID = env->GetMethodID(cls, "audioCB", "()V");    if (!audioCBID) {        return;    }    env->CallVoidMethod(obj, audioCBID);}