我按照demo进行摄像机的调用就是不行？？

权限，你的minSdk是不是跟DEMO一样

http://blog.csdn.net/shen332401890/article/details/8819564 看一下上传的资源可能因为 CSDN的原因有损坏不过已经分析的很清楚了

<uses-permission android:name = "android.permission.CAMERA" />
<uses-feature android:name = "android.hardware.camera" />
<uses-feature android:name = "android.hardware.camera.autofocus" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE"/>
<uses-permission android:name="android.permission.RECORD_VIDEO"/>
<uses-permission android:name="android.permission.RECORD_AUDIO"/>
<uses-permission android:name="android.permission.WRITE_SETTINGS"></uses-permission>
<uses-permission android:name="android.permission.MODIFY_AUDIO_SETTINGS"></uses-permission>
我感觉应该不是这个问题，也许是我程序的哪里没弄清楚，我在研究下··

MediaRecorder的配置很奇葩的，在这个机器上可用，换个机器又不行了，各种麻烦。

对啊，我现在
按照您的方法改了下，可以预览，但是我点击照相后，就出现错误了··我是在我的手机上调试的：是安卓2.3.5的
应该是一下的函数有问题，请高手看看：private void videoRecord()
  {
    if(record_flag==true){
      /* */
if(record_stop){

mCamera01.unlock();// 解锁相机
mRecorder01 = new MediaRecorder();///////////?????
mRecorder01.reset();//////////
     mRecorder01.setCamera(mCamera01);// 指定使用的相机
    //Set the audio source
     mRecorder01.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);//.DEFAULT
     mRecorder01.setAudioSource(MediaRecorder.VideoSource.CAMERA);

     mRecorder01.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_LOW));
     // CamcorderProfile mCamcorderProfile = CamcorderProfile.get(CameraInfo.CAMERA_FACING_BACK, CamcorderProfile.QUALITY_LOW);
     // mRecorder01.setProfile(mCamcorderProfile);

//Set the video output format and encoding.
//    mRecorder01.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//3GP   MPEG_4=>MP4
//    mRecorder01.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//设置   音频编码类型
//    mRecorder01.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//设置视频编码类型



     //Set the output file, use getOutputMediaFile(MEDIA_TYPE_VIDEO).toString()
     File myRecordFile = new File(strCaptureVideoFilePath);
     mRecorder01.setOutputFile(myRecordFile.toString());

//     mRecorder01.setVideoFrameRate(5);
//     mRecorder01.setVideoSize(320, 240);


       //Specify the SurfaceView preview layout element for your application
     mRecorder01.setPreviewDisplay(mSurfaceView01.getHolder().getSurface());

       //Prepare the MediaRecorder
     try {
     mRecorder01.prepare();
     } catch (IllegalStateException e) {
// TODO Auto-generated catch block
     releaseRecorder();
     e.printStackTrace();
     } catch (IOException e) {
// TODO Auto-generated catch block
     releaseRecorder();
     e.printStackTrace();
     }/**/

      mRecorder01.start();
      record_stop=false;
      mButton03.setText("Stop");
}
else
  {
//release media recorder
releaseRecorder();
    //release Camera
    mButton03.setText("Capture");
    resetCamera();
    record_stop = true;
  }
    }
  }
/**/

我记得录像的话好像是需要区分手机的之前我也是无法播放，待会我贴代码给你你看看，联想HTC需要注释几行代码

把你的错误log 贴一下
还有你可以根据我那篇日志
和日志下面的源代码那个源代码我调试成功的

recorder.setVideoSize(176, 144);
recorder.setVideoFrameRate(20);
这2行需要注释才可以，楼主可以试试的

mRecorder01.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);//.DEFAULT
mRecorder01.setAudioSource(MediaRecorder.VideoSource.CAMERA); mRecorder01.setVideoSource(MediaRecorder.VideoSource.CAMERA);应该是这样吧仔细点应该能该对在核对一下代码

楼上的贴错了，额···下面才是代码：package com.cameraapi;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import android.os.Bundle;
import android.app.Activity;
import android.content.pm.ActivityInfo;import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.PixelFormat;
import android.hardware.Camera;
import android.hardware.Camera.CameraInfo;
import android.hardware.Camera.PictureCallback;
import android.hardware.Camera.ShutterCallback;import android.media.CamcorderProfile;
import android.media.MediaRecorder;
import android.media.CameraProfile;import android.util.DisplayMetrics;
import android.util.Log;
import android.view.View;
import android.view.Window;
import android.view.Menu;
import android.view.Surface;
import android.view.SurfaceHolder;
import android.view.SurfaceHolder.Callback;
import android.view.SurfaceView;
import android.view.View.OnClickListener;import android.widget.Button;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;public class MainActivity extends Activity implements SurfaceHolder.Callback{//

  private Camera mCamera01;
  private Button mButton01, mButton02, mButton03;//, mButton04

  private ImageView mImageView01;
  private SurfaceView mSurfaceView01;
  private SurfaceHolder mSurfaceHolder01;      private boolean bIfPreview = false;   //设置时录像还是拍照
  private boolean camera_flag = true;
  private boolean record_flag = false;
  private boolean record_stop = true;


  /*利用时间作为文件的名称*/
// String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
  private String strCaptureFilePath ;
  private String strCaptureVideoFilePath;
  private MediaRecorder mRecorder01;

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
requestWindowFeature(Window.FEATURE_NO_TITLE);
setContentView(R.layout.activity_main);
this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
DisplayMetrics dm = new DisplayMetrics();
    getWindowManager().getDefaultDisplay().getMetrics(dm);

//  mTextView01 = (TextView) findViewById(R.id.textView1);
    mImageView01 = (ImageView) findViewById(R.id.imageView1);
    mSurfaceView01 = (SurfaceView) findViewById(R.id.surfaceView1);
    mSurfaceHolder01 = mSurfaceView01.getHolder();

    /* */
    mSurfaceHolder01.addCallback(MainActivity.this);

    mSurfaceHolder01.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);

    mButton01 = (Button)findViewById(R.id.button1);
    mButton02 = (Button)findViewById(R.id.button2);
    mButton03 = (Button)findViewById(R.id.button3);

//   mButton04 = (Button)findViewById(R.id.button4);

    mButton01.setOnClickListener(new Button.OnClickListener()
    {
      @Override
      public void onClick(View arg0)
      {
       initCamera();
      }
    });

    mButton02.setOnClickListener(new Button.OnClickListener()
    {
      @Override
      public void onClick(View arg0)
      {   String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
       strCaptureFilePath = "/sdcard/DCIM/Camera"+File.separator+"img_"+timeStamp+".jpg";
       takePicture();
      }
     });

    mButton03.setOnClickListener(new Button.OnClickListener()
    {
      @Override
      public void onClick(View arg0)
      {   String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
       strCaptureVideoFilePath = "/sdcard/DCIM/Camera"+File.separator+"vid_"+timeStamp+".mp4";
       videoRecord();
      }
     });
     }

private void initCamera()
  {

/*    */
    if(camera_flag == true){
     mButton03.setEnabled(false);
     if(!bIfPreview)
    {
      mCamera01 = Camera.open();
    }      if (mCamera01 != null && !bIfPreview)
     {
     Camera.Parameters parameters = mCamera01.getParameters();
     parameters.setPictureFormat(PixelFormat.JPEG);
     parameters.setPreviewSize(320, 240);
     parameters.setPictureSize(320, 240);
     mCamera01.setParameters(parameters);

     try{
     mCamera01.setPreviewDisplay(mSurfaceHolder01);}
     catch(Exception e){
     e.printStackTrace();
     }

     mCamera01.startPreview();
     bIfPreview = true;
     }
    }else if(record_flag == true){
     mButton03.setText("Capture");
     mButton02.setEnabled(false);
     if(!bIfPreview)
    {
      mCamera01 = Camera.open();
    }
     if (mCamera01 != null && !bIfPreview)
     {
     try {
     mCamera01.setPreviewDisplay(mSurfaceHolder01);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
     mCamera01.setDisplayOrientation(180);

     mCamera01.startPreview();
     bIfPreview = true;
     //
     }
     }
   }

private void videoRecord()
  {
    if(record_flag==true){
      /* */
if(record_stop){

mCamera01.unlock();// 解锁相机
mRecorder01 = new MediaRecorder();///////////?????
mRecorder01.reset();//////////
     mRecorder01.setCamera(mCamera01);// 指定使用的相机
    //Set the audio source

     mRecorder01.setAudioSource(MediaRecorder.VideoSource.CAMERA);
     mRecorder01.setAudioSource(MediaRecorder.AudioSource.CAMCORDER);//.DEFAULT
     mRecorder01.setProfile(CamcorderProfile.get(CamcorderProfile.QUALITY_LOW));
     // CamcorderProfile mCamcorderProfile = CamcorderProfile.get(CameraInfo.CAMERA_FACING_BACK, CamcorderProfile.QUALITY_LOW);
     // mRecorder01.setProfile(mCamcorderProfile);

//Set the video output format and encoding.
//    mRecorder01.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//3GP   MPEG_4=>MP4
//    mRecorder01.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//设置   音频编码类型
//    mRecorder01.setVideoEncoder(MediaRecorder.VideoEncoder.H264);//设置视频编码类型



     //Set the output file, use getOutputMediaFile(MEDIA_TYPE_VIDEO).toString()
     File myRecordFile = new File(strCaptureVideoFilePath);
     mRecorder01.setOutputFile(myRecordFile.toString());

//     mRecorder01.setVideoFrameRate(5);
//     mRecorder01.setVideoSize(320, 240);


       //Specify the SurfaceView preview layout element for your application
     mRecorder01.setPreviewDisplay(mSurfaceView01.getHolder().getSurface());

       //Prepare the MediaRecorder
     try {
     mRecorder01.prepare();
     } catch (IllegalStateException e) {
// TODO Auto-generated catch block
     releaseRecorder();
     e.printStackTrace();
     } catch (IOException e) {
// TODO Auto-generated catch block
     releaseRecorder();
     e.printStackTrace();
     }/**/

      mRecorder01.start();
      record_stop=false;
      mButton03.setText("Stop");
}
else
  {
//release media recorder
releaseRecorder();
    //release Camera

    resetCamera();
    record_stop = true;
    mButton03.setText("Capture");
  }
    }
  }
/**/
private void takePicture()
  {
    if (mCamera01 != null && bIfPreview)
    {
      mCamera01.takePicture(shutterCallback, rawCallback, jpegCallback);
    }
  } private ShutterCallback shutterCallback = new ShutterCallback()
  {
    public void onShutter()
    {
      // Shutter has closed
    }
  };

  private PictureCallback rawCallback = new PictureCallback()
  {
    public void onPictureTaken(byte[] _data, Camera _camera)
    {
      // TODO Handle RAW image data
    }
  };   private PictureCallback jpegCallback = new PictureCallback()
  {
    public void onPictureTaken(byte[] _data, Camera _camera)
    {
      // TODO Handle JPEG image data
      Bitmap bm = BitmapFactory.decodeByteArray(_data, 0, _data.length);
      File myCaptureFile = new File(strCaptureFilePath);

      try
      {
        BufferedOutputStream bos = new BufferedOutputStream(new FileOutputStream(myCaptureFile));
        bm.compress(Bitmap.CompressFormat.JPEG, 80, bos);

        bos.flush();
        bos.close();

      //  mImageView01.setImageBitmap(bm);
        resetCamera();
        initCamera();
      }
      catch (Exception e)
      {

      }
    }
  };

  private void releaseRecorder()
  {
  if(mRecorder01!=null){
    mRecorder01.stop();
    //mCamera01.lock();
    mRecorder01.reset();
    mRecorder01.release();
    mRecorder01 = null;
    //
/*  try {
mCamera01.reconnect();
} catch (IOException e) {
Toast.makeText(this, "reconect fail", 0).show();
e.printStackTrace();
}*/
    }
  }   /* */
  private void resetCamera()
  {
    if (mCamera01 != null && bIfPreview)
    {
      mCamera01.stopPreview();
     // mCamera01.release();
      mCamera01 = null;
      bIfPreview = false;
    }
  }



@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}

/**/

@Override
public void surfaceChanged(SurfaceHolder holder, int format, int width,
int height) {
// TODO Auto-generated method stub

} @Override
public void surfaceCreated(SurfaceHolder holder) {
// TODO Auto-generated method stub

} @Override
public void surfaceDestroyed(SurfaceHolder holder) {
// TODO Auto-generated method stub
mCamera01.release();
}
}

调试易

我按照demo进行摄像机的调用就是不行？？

解决方案 »

我按照demo进行摄像机的调用 就是不行？？

解决方案 »

我按照demo进行摄像机的调用就是不行？？