Question

我想拍照并将其保存为SD卡上的文件。一切正常，相机启动，拍照和保存。如果我检查我的设备上的图片文件夹，我看到拍摄的图片，但如果我从另一个actvity检查文件夹，我看不到拍摄的照片。同样，如果我从我的电脑上检查文件夹。我的代码出了什么问题？

以下是我的Cameraactivity代码

//Init ImageView
    mPhotoCapturedImageView = (ImageView) findViewById(R.id.imgViewThumbNail);

    Intent intent = new Intent(android.provider.MediaStore.ACTION_IMAGE_CAPTURE);
    startActivityForResult(intent, ACTIVITY_START_CAMERA_APP);

}

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    if (requestCode == ACTIVITY_START_CAMERA_APP && resultCode == RESULT_OK) {

        Bitmap thumbnail = (Bitmap) data.getExtras().get("data");
        mPhotoCapturedImageView.setImageBitmap(thumbnail);

        ByteArrayOutputStream bytes = new ByteArrayOutputStream();
        thumbnail.compress(Bitmap.CompressFormat.JPEG, 100, bytes);

        String timeStamp = new SimpleDateFormat("yyyyMMdd_HHmmss").format(new Date());
        String imageFileName = "IMAGE_" + timeStamp+ "_";

        File file = new File(Environment.getExternalStorageDirectory()+ PHOTO_ALBUM + imageFileName + ".jpg");
        try {
            file.createNewFile();
            FileOutputStream fo = new FileOutputStream(file);
            //5
            fo.write(bytes.toByteArray());
            fo.close();
        } catch (IOException e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
}

PHOTO_ALBUM的路径是

public static final String PHOTO_ALBUM = "/MyIdea/IdeaGallery/";

Answer 1

我发现SD卡在安装后正在扫描并显示所有新图片。这条简单的代码解决了我所有的问题：

MediaScannerConnection.scanFile(CameraActivity.this, new String[]{file.getPath()}, new String[]{"image/jpeg"}, null);

谢谢大家的帮助！

保存为文件后无法查看拍摄的照片

1 个答案: