小编use*_*546的帖子

在OpenCV上使用类VideoCapture时如何旋转相机？(Android上的样本人脸检测).我正在旋转画布:

if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT)
{
    Matrix matrix = new Matrix();
    matrix.preTranslate(
    (canvas.getWidth() - bmp.getWidth()) / 2,
    (canvas.getHeight() - bmp.getHeight()) / 2);
    matrix.postRotate(270f, (canvas.getWidth()) / 2,
    (canvas.getHeight()) / 2);
    canvas.drawBitmap(bmp, matrix, null);
}

但来自相机的图像不会旋转:面部检测不起作用.

摄像机从以下位置接收流:

protected Bitmap processFrame(VideoCapture capture) {

    capture.retrieve(mRgba, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);

    capture.retrieve(mGray,
    Highgui.CV_CAP_ANDROID_GREY_FRAME);

更新我做了以下事情:

@Override
    protected Bitmap processFrame(VideoCapture capture) {

    if (getResources().getConfiguration().orientation == Configuration.ORIENTATION_PORTRAIT) {
        Core.flip(mRgba.t(), mRgba, 0);
    }

    else {
    }
    capture.retrieve(mRgba, Highgui.CV_CAP_ANDROID_COLOR_FRAME_RGBA);
    capture.retrieve(mDetect_thread.mGray,
            Highgui.CV_CAP_ANDROID_GREY_FRAME);

但是不行.当我在portret方向运行程序(在Android设备上) - 程序不启动当我以横向方向运行rogram - 程序工作,但当我旋转设备,程序工作,但显示图像不旋转

在xml文件中我做下一步:

   <Row>
        <Key android:codes="FLAG_EDITOR_ACTION" android:keyLabel="Start"  />
    </Row>

在onKeyDown方法的类键盘中,我创建下一个构造

@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.FLAG_EDITOR_ACTION: {

            return true;
}
...

但是不行.怎么了？

我有一些Soap,REST servlet和现在一个WebSocket:

@ServerEndpoint("/game")
public class WebSocketgame{
...
}

我有下一个麻烦:如果web.xml存在,WebSocket不可见.在web.xml中描述了jdbc资源,servlets ant等...当我删除web.xml时 - websocket成功可见.我该如何解决这个问题？

更新web.xml:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd">
    <listener>
        <listener-class>com.sun.xml.ws.transport.http.servlet.WSServletContextListener</listener-class>
    </listener>
    <servlet>
        <servlet-name>ConfigServlet</servlet-name>
        <servlet-class>com.example.ConfigServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet>
        <servlet-name>MainService</servlet-name>
        <servlet-class>com.sun.xml.ws.transport.http.servlet.WSServlet</servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>ConfigServlet</servlet-name>
        <url-pattern>/ConfigServlet</url-pattern>
    </servlet-mapping>

    <servlet>
        <servlet-name>JsonServlet</servlet-name>
        <servlet-class>com.sun.jersey.spi.container.servlet.ServletContainer</servlet-class>
        <init-param>
            <param-name>com.sun.jersey.config.property.packages</param-name>
            <param-value>com.example.json</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>JsonServlet</servlet-name>
        <url-pattern>/json/*</url-pattern>
    </servlet-mapping>
    <context-param>
        <param-name>propfile</param-name>
        <param-value>/WEB-INF/server_config.txt</param-value>
    </context-param>
    <servlet-mapping>
        <servlet-name>MainService</servlet-name>
        <url-pattern>/MainService</url-pattern>
    </servlet-mapping>
    <session-config>
        <session-timeout>
            30
        </session-timeout>
    </session-config>
    <resource-ref>
        <description>postgreSQL Datasource example</description>
        <res-ref-name>jdbc/postgres</res-ref-name>
        <res-type>javax.sql.DataSource</res-type>
        <res-auth>Container</res-auth>
    </resource-ref>
</web-app>

我正在尝试将照片从相机中投入使用。

@Override\npublic void onCreate() {\n    super.onCreate();\n    //android.os.Debug.waitForDebugger();\n\n    myCamera=Camera.open();\n\n\n      SurfaceView dummy=new SurfaceView(getApplicationContext());\n    try {\n        if(myCamera!=null)\n        {\n            myCamera.setPreviewDisplay(dummy.getHolder());\n            myCamera.setPreviewCallback(this);\n            Log.i(TAG,"myCamera is not null");\n        }\n            getFrames();\n\n    } catch (IOException e) {\n        // TODO Auto-generated catch block\n        e.printStackTrace();\n        Log.e(TAG, "setPreviewDisplay " + e);\n    }    \n    myCamera.startPreview(); \n}\n\n\n    public void getFrames() {\n\n        new Thread(new Runnable() {\n\n            public void run() {\n\n                    while(flag)\n                    {\n                        Log.i(TAG, "getFrames");\n                        try{\n\n                            //method();\n                        takePictureNoPreview();\n                        Thread.sleep(54);\n\n                        } catch (Exception e) {\n                            Log.e(TAG, "getFrames thread error: " + e);\n                        }\n                    }\n                     myCamera.release();  \n\n …

我想查询没有非数字符号的字段。

Cursor c=context.getContentResolver().query(Uri.parse("content://mms-sms/canonical-addresses/"), new String[] {"address","_id"}, "replace("+"address"+", '[^0-9]','')"+" LIKE ?",  new String[] {"%"+subaddress+"%"}, null);

但是当我通过子地址 8888888 在 DB 编号格式 +7(888)888-88-88 中搜索时，光标不会 moveToNext

怎么了？