Question

我正试图从Android中按顺序拍照，就像游戏中时光倒流一样。

我打电话

 camera.takePicture(null, null, jpegCallback);

我的jpegCallback是：

PictureCallback jpegCallback = new PictureCallback() {
    public void onPictureTaken(byte[] data, Camera camera) {
        time++;
        photoCounter.setText(String.valueOf(time));

        SaveImageTask sav = new SaveImageTask(fileNameIND++);
        sav.execute(data);
        resetCam();
        Log.d(TAG, "onPictureTaken - jpeg");
    }
};

private class SaveImageTask extends AsyncTask<byte[], Void, Void> {
    int name;

  SaveImageTask(int name){
      this.name = name;
  }

    @Override
    protected Void doInBackground(byte[]... data) {
        FileOutputStream outStream = null;

        // Write to SD Card
        try {
            File sdCard = Environment.getExternalStorageDirectory();
            File dir = new File (sdCard.getAbsolutePath() + "/TimeLaps");
            dir.mkdirs();



            java.text.NumberFormat nf = new java.text.DecimalFormat("000000");



            String fileName = (nf.format(name)+".jpg");
            File outFile = new File(dir, fileName);


            outStream = new FileOutputStream(outFile);

            outStream.write(data[0]);


            outStream.flush();
            outStream.close();

            Log.d(TAG, "onPictureTaken - wrote bytes: " + data.length + " to " + outFile.getAbsolutePath());

            refreshGallery(outFile);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
        }
        return null;
    }

    @Override
    protected void onPostExecute(Void aVoid) {
        super.onPostExecute(aVoid);


    }
}

但在拍摄了大约20-30张照片后，我得到了：

E / Camera-JNI] 无法为JPEG数据分配字节数组

并且PictureCallBack中的数据为空。

为什么会这样？是内存满？我怎样才能释放内存？

非常感谢

Android从相机拍摄更多照片“无法为JPEG数据分配字节数组”

0 个答案: