Android：从相机获取文件名？ [英] Android : Getting file name from camera?

问题描述

我遇到了一个我可能只是俯视的小问题。

I have run into a small issue with something that I am probably just overlooking.

我想从相机的表面预览拍摄一张照片，并保存它到sd_card。这工作完美的ALMOST。我为它分配一个文件名，并且由于某种原因，它不使用文件名。

I want to take a picture from the surface preview of the camera, and save it to the sd_card. This works ALMOST perfectly. I assign it a file name, and for one reason or another, it does not use the filename.

这是我一直在努力做的：

This is what I have been trying to do :

    Button imagecapture = (Button)findViewById(R.id.imagecapture);
    imagecapture.setOnClickListener(new View.OnClickListener() {
        public void onClick(View view) {
            String filename = null;
            ImageCaptureCallback iccb = null;

                try {
                filename = timeStampFormat.format(new Date());
                ContentValues values = new ContentValues();
                values.put(Media.TITLE, filename);
                values.put(Media.DESCRIPTION, "Image capture by camera");

                Uri uri = getContentResolver().insert(Media.EXTERNAL_CONTENT_URI, values);
                iccb = new ImageCaptureCallback( getContentResolver().openOutputStream(uri));
                } catch(Exception ex ){
                ex.printStackTrace();
                Log.e(getClass().getSimpleName(), ex.getMessage(), ex);
                }
            camera.takePicture(mShutterCallback, mPictureCallbackRaw, iccb);
            com.froogloid.android.gspot.Park.imageFileName = filename;


        }
    }); 

它不会使用文件名（例如我要求的时间/日期戳） p>

It won't use the filename (i.e. time/date stamp I ask it to.)

推荐答案

通过ImageCaptureCallback类实现PictureCallback，并通过文件输出流覆盖onPictureTaken文件。所有你需要做的是将fileoutput流更改为所需的文件名。

This was resolved by implementing PictureCallback via a ImageCaptureCallback class, and Overriding the onPictureTaken where the file was being written via a file output stream. All you had to do was change the fileoutput stream to the filename you want.

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