android写的远程监控调用JNI的停止视频问题，如果连接远程摄像头成功后可以安全退出当前activity，如果连接摄像头不成功调用JNI中的stop方法卡死

问题：
在连接成功后可以安全退出视频查看，当正在连接时点击后退按钮，应用会出现卡死想象，请大家指教，这个问题困扰好几天了。
activity部分代码：

@Overridepublic boolean onKeyDown(int keyCode, KeyEvent event) {AlertDialog.Builder builder = new AlertDialog.Builder(this);builder.setIcon(android.R.drawable.ic_dialog_alert);builder.setTitle("温馨提示");builder.setMessage("确定退出视频监控吗?");builder.setPositiveButton("确定",new DialogInterface.OnClickListener() {

@Overridepublic void onClick(DialogInterface dialog, int which) {onBackPressed();}});builder.setNegativeButton("取消",new DialogInterface.OnClickListener() {

@Overridepublic void onClick(DialogInterface dialog, int which) {dialog.dismiss();}});builder.create();builder.show();return false;}
public void onBackPressed() {

try {if (this.videoView.getStatus() == 1){videoView.logoutDevice();this.videoView.stopVideo();if(videoThread != null){videoThread.interrupt();videoThread = null;}}finish();} catch (Exception e) {e.printStackTrace();}

}

class VideoView extends View implements Runnable {ByteBuffer buffer;final int h = 288;ImageButton ibutStop;ImageButton ibutdown;ImageButton ibutzoomin;ImageButton ibutleft;ImageButton ibutpic;ImageButton ibutzoomout;ImageButton ibutright;ImageButton ibutup;private int initial = 0;private Bitmap mBitmap;byte[] pixel = new byte[202752];Bitmap resizedBitmap;private int step = 0;private boolean takepic = false;Bitmap temp;private Video video;Bitmap videoBit = null;final int w = 352;

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

public VideoView(Context paramContext, AttributeSet paramAttributeSet) {super(paramContext, paramAttributeSet);}

public native int status();

public native int connection(String paramString, int paramInt);

public native int loginDevice(String paramString1, String paramString2);

public native int liveVideo(int paramInt, Object paramObject);

public native int InitDecoder();

public native int UninitDecoder();

public native int changeChannel(int paramInt);

public native int connectionStatus();

public native int sendAutoPTZ(int paramInt1, int paramInt2);

public native int sendPTZCmd(int paramInt1, int paramInt2);

public native int stopVideo();

public native int logoutDevice();

public native int nextChannel(int paramInt);

public native int previousChannel(int paramInt);

public int getStatus() {return status();}

protected void onDraw(Canvas paramCanvas) {try {super.onDraw(paramCanvas);if ((this.initial != 0) && (status() != 0)) {videoBit = Bitmap.createBitmap(352, 288, Bitmap.Config.RGB_565);buffer = ByteBuffer.wrap(this.pixel);this.videoBit.copyPixelsFromBuffer(this.buffer);if (this.takepic) {saveBitmap2file(this.videoBit);Toast.makeText(getContext(), "截图保存成功", 3000).show();this.takepic = false;}Rect localRect1 = new Rect(0, 0, 352, 288);Rect localRect2 = new Rect(0, 0, VideoActivity.viewWidth,VideoActivity.viewHeight);paramCanvas.drawBitmap(this.videoBit, localRect1, localRect2,null);}int i = -10 + VideoActivity.viewHeight;if (this.step == 0) {Paint localPaint1 = new Paint();localPaint1.setColor(Color.BLUE);paramCanvas.drawText("正在连接前端设备， 请稍等..... ", 10, i, localPaint1);}

if (this.step == 1) {Paint localPaint2 = new Paint();localPaint2.setColor(Color.GREEN);paramCanvas.drawText("成功连接到前端设备 ", 10, i, localPaint2);}if (this.step == 2) {Paint localPaint3 = new Paint();localPaint3.setColor(Color.RED);paramCanvas.drawText("连接前端设备失败 ", 10, i, localPaint3);}if (this.step == 3) {Paint localPaint4 = new Paint();localPaint4.setColor(Color.GREEN);paramCanvas.drawText("登录前端设备成功 ", 10, i, localPaint4);}if (this.step == 4) {Paint localPaint5 = new Paint();localPaint5.setColor(Color.RED);paramCanvas.drawText("传输实施视频失败 ", 10, i, localPaint5);}if (this.step == 5) {Paint localPaint6 = new Paint();localPaint6.setColor(Color.GREEN);paramCanvas.drawText("正在传输实时视频", 10, i, localPaint6);}

} catch (Exception e) {// TODO: handle exception}}

public void run() {try {int result = -1;         result = connection(this.video.getIp(),Integer.valueOf(this.video.getTp()));System.out.println("connection ............" + this.video.getIp()+ "   " + this.video.getTp());// result = connection("192.168.1.100",6036);

System.out.println("connection ............" + result);if (result == 0) {this.step = 2;updateView();return;}System.out.println(this.video.getUn() + "!!!!!!!!!!!!!!!!!!!!!!!!!"+ this.video.getPw());result = loginDevice(this.video.getUn(), this.video.getPw());

if (result == 1) {step = 3;updateView();result = liveVideo(this.video.getCh(), pixel);if (result != 1) {step = 4;updateView();stopVideo();return;} else {step = 5;updateView();}

} else {return;}

} catch (Exception e) {e.printStackTrace();} finally {buffer = null;videoBit = null;resizedBitmap = null;temp = null;System.gc();}}

boolean saveBitmap2file(Bitmap paramBitmap) {Bitmap.CompressFormat localCompressFormat = Bitmap.CompressFormat.JPEG;//.../storage/emulated/0/hanrun/String str1 = Environment.getExternalStorageDirectory().getAbsolutePath() + File.separator + "hanrun" + File.separator;

File localFile1 = new File(str1);if (!localFile1.exists()) {localFile1.mkdir();}

Date localDate = new Date();String str2 = new SimpleDateFormat("MMddkkmmss").format(localDate);File localFile2 = new File(str1 + this.video.getTp() + str2 + ".jpg");FileOutputStream localFileOutputStream;try {localFileOutputStream = new FileOutputStream(localFile2);boolean bool2 = paramBitmap.compress(localCompressFormat, 100,localFileOutputStream);return bool2;} catch (IOException localIOException2) {localIOException2.printStackTrace();return false;}}

public void setTakepic(boolean paramBoolean) {this.takepic = paramBoolean;}

public void setVideo(Video paramVideo) {this.video = paramVideo;}

public void updateView() {postInvalidate();this.initial = 1;}
}

JNI文件如下，只列出连接和退出摄像头的代码：

JNIEXPORT jint JNICALL Java_com_handlerun_view_VideoView_connection(JNIEnv *env, jobject thiz, jstring ip,jint port)
{

status  = 1;m_DeviceAddr.sin_family = AF_INET;m_DeviceAddr.sin_port = htons(port);char *m_ip = (char*)env->GetStringUTFChars(ip, NULL);m_DeviceAddr.sin_addr.s_addr = inet_addr(m_ip);

sk.socket = socket(AF_INET,SOCK_STREAM,0);if(sk.socket == SOCKET_ERROR){status =0;return 0;}

//设置为非阻塞模式unsigned long ul = 1;result  = ioctl(sk.socket, FIONBIO, &ul);if(result == SOCKET_ERROR){__android_log_print(ANDROID_LOG_ERROR,"Tag", "  ioctl  FIONBIO  error   :%d \n", result );status  = 0;return 0;}

//连接到服务器int error;result =  connect(sk.socket,(struct sockaddr*)&m_DeviceAddr,sizeof(struct sockaddr));

if(result != -1 ){__android_log_print(ANDROID_LOG_ERROR,"Tag", "socket   connect  error   :%d \n", result );status  = 0;return 0;}

//检测连接状态if(errno != EINPROGRESS){__android_log_print(ANDROID_LOG_ERROR,"Tag", "socket  earn    EINPROGRESS   :%d \n", errno );close(sk.socket);status  = 0;return 0;}struct timeval tv;fd_set writefds;tv.tv_sec = 5;tv.tv_usec = 0;FD_ZERO(&writefds);FD_SET(sk.socket, &writefds);result  =  select(sk.socket+1,NULL,&writefds,NULL,&tv);// 连接超时if(result==0){__android_log_print(ANDROID_LOG_ERROR,"Tag", "  select    error  :%d \n", result );close(sk.socket);status = 0;return 0;}

//穿透防火墙int len = sizeof(int);result = getsockopt(sk.socket, SOL_SOCKET, SO_ERROR, &error, &len);if(result!=0){__android_log_print(ANDROID_LOG_ERROR,"Tag", "  getsockopt      error  :%d \n", errno );close(sk.socket);status = 0;return 0;}

memset(buf,0,200);result = ReceiveData(sk.socket,m_DeviceTypeInfo,64,20);

if(result != 64){close(sk.socket);status  = 0;return 0;}netprotrocolver = *((unsigned long*)m_DeviceTypeInfo+3);

__android_log_write(ANDROID_LOG_ERROR,"Tag","stopVideo  ----hrsst stop over ------ ............... ");

return 1;
}

JNIEXPORT jint JNICALL Java_com_handlerun_view_VideoView_stopVideo(JNIEnv *env, jobject thiz)
{memset(&dataHead,0,dataHead_Size);memset(&packCMD,0,packCmd_Size);

dataHead.HeadFlag = '1111';dataHead.lLen = packCmd_Size;

packCMD.cmdType = CMD_REQUEST_LOGOUT;packCMD.dataLen = 0;

result = SendData(sk.socket,(char*)&dataHead,dataHead_Size,10);result = SendData(sk.socket,(char*)&packCMD,packCmd_Size,10);result  = shutdown(sk.socket,SHUT_RDWR);

close(sk.socket);

__android_log_write(ANDROID_LOG_ERROR,"Tag","stopVideo   stop over  ............... ");

status  = 0 ;return 1;
}

android写的远程监控调用JNI的停止视频问题，如果连接远程摄像头成功后可以安全退出当前activity，如果连接摄像头不成功调用JNI中的stop方法卡死相关推荐

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android写的远程监控调用JNI的停止视频问题，如果连接远程摄像头成功后可以安全退出当前activity，如果连接摄像头不成功调用JNI中的stop方法卡死

android写的远程监控调用JNI的停止视频问题，如果连接远程摄像头成功后可以安全退出当前activity，如果连接摄像头不成功调用JNI中的stop方法卡死相关推荐

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