Android 警告:摄像头出现故障

Android 警告:摄像头出现故障,android,video,camera,record,samsung-mobile,Android,Video,Camera,Record,Samsung Mobile,我使用以下代码调用已存在的摄影机: // New intent to Camera feature Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE); Uri fileUri = Uri.fromFile((new File((new Date()).toString()))); // create a file to save the video intent.putExtra(MediaStore.EXTRA_OUTP

我使用以下代码调用已存在的摄影机:

// New intent to Camera feature
Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
Uri fileUri = Uri.fromFile((new File((new Date()).toString())));  // create a file to save the video

intent.putExtra(MediaStore.EXTRA_OUTPUT, fileUri);  // set the image file name
intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // set the video image quality to high

// start the Video Capture Intent
startActivityForResult(intent, CAPTURE_VIDEO_ACTIVITY_REQUEST_CODE);
可以拍摄照片,但无法录制视频,我收到错误
警告:摄像头故障

我试着做一些相关的事情,但没有收到好的效果。(尽管重置了手机)

请告诉我如何解决这个问题

谢谢

p/s:设备-三星Galaxy Tab 7 2.2.1

编辑: 我使用以下代码接收响应,并响应结果
resultCode==result\u cancelled

if (resultCode == RESULT_OK) {
    // Video captured and saved to fileUri specified in the Intent
    Toast.makeText(this, "Video saved to:\n" +
                    data.getData(), Toast.LENGTH_SHORT).show();
} else if (resultCode == RESULT_CANCELED) {
    // User cancelled the video capture
    Toast.makeText(this, "User cancelled the video capture", Toast.LENGTH_SHORT).show();
} else {
    // Video capture failed, advise user
    Toast.makeText(this, "Warning : Camera failed", Toast.LENGTH_SHORT).show();
}
我将你的代码与你的代码进行了比较。唯一的区别是文件uri。您可以尝试使用Google的示例代码来获取文件uri:

public static final int MEDIA_TYPE_IMAGE = 1;
public static final int MEDIA_TYPE_VIDEO = 2;

/** Create a file Uri for saving an image or video */
private static Uri getOutputMediaFileUri(int type){
      return Uri.fromFile(getOutputMediaFile(type));
}

/** Create a File for saving an image or video */
private static File getOutputMediaFile(int type){
    // To be safe, you should check that the SDCard is mounted
    // using Environment.getExternalStorageState() before doing this.

    File mediaStorageDir = new File(Environment.getExternalStoragePublicDirectory(
              Environment.DIRECTORY_PICTURES), "MyCameraApp");
    // This location works best if you want the created images to be shared
    // between applications and persist after your app has been uninstalled.

    // Create the storage directory if it does not exist
    if (! mediaStorageDir.exists()){
        if (! mediaStorageDir.mkdirs()){
            Log.d("MyCameraApp", "failed to create directory");
            return null;
        }
    }

    // Create a media file name
    String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
    File mediaFile;
    if (type == MEDIA_TYPE_IMAGE){
        mediaFile = new File(mediaStorageDir.getPath() + File.separator +
        "IMG_"+ timeStamp + ".jpg");
    } else if(type == MEDIA_TYPE_VIDEO) {
        mediaFile = new File(mediaStorageDir.getPath() + File.separator +
        "VID_"+ timeStamp + ".mp4");
    } else {
        return null;
    }

    return mediaFile;
}

你为什么不检查一下意图是否真的回来了?与此类似,也检查此线程@Boris:I编辑了代码,请跟随您的评论。我还运行了第二个链接(项目),结果出现了黑屏@什么也没有发生。您必须创建新的活动,以便添加Surfaceholder和MediaRecorder类处理视频录制。您可以发布代码的示例项目,以便更轻松地进行尝试吗?如果我的设备尚未安装SD卡,会出现什么问题?我还是用这个功能好吗?至少你有间隔存储吧?该方法意味着您可以获取设备的公共目录。有些设备可能只有内部存储,但并非所有设备都像三星的设备那样有额外的SD卡插槽。所以这个方法可以很好地工作是的,至少我有内部存储。所以你的回答与我的错误无关。很抱歉