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任何人都可以给我指导如何找到我的Android设备存储从相机拍摄的图像的目录吗?

在以下代码片段中,我打算在启动相机应用程序之前获取文件列表。从相机应用程序返回时,获取同一目录中所有文件的列表并处理新添加的文件。

public void onBtnTakePhoto(final View view) {
    existingfiles = UploadImageService.getFiles(<IMAGE_LOCATION>);
    final Intent intent = new Intent(MediaStore.INTENT_ACTION_STILL_IMAGE_CAMERA);
    startActivityForResult(intent, TAKE_PICTURE);
}


public void onActivityResult(final int requestCode, final int resultCode, final Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    switch (requestCode) {
        case TAKE_PICTURE:
            List<String> newFies = UploadImageService.getFiles(<IMAGE_LOCATION>);
            newFies.removeAll(existingfiles);
            for (String newFile : newFies) {
                File file = new File(newFile);
                addImage( Uri.fromFile(file), PictureSource.CAMERA);
            }
            break;
    }
    // regardless of which activity, check that files exist:
    verifyFilesExist(images);
}
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1 回答 1

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据我了解,您实际上必须通过ACTION_IMAGE_CAPTURE操作来启动您的意图(而不是 INTENT_ACTION_STILL_IMAGE_CAMERA)。然后,onActivityResult你必须从 Intent 中获取数据:在那里你会找到对图像的引用。

看看这里给出的例子。

但是当我查看您的答案时,您可能会发现这更有用:

String[] projection = { 
          MediaStore.Images.ImageColumns._ID, MediaStore.Images.ImageColumns.DATA 
}; 
String selection = ""; 
String[] selectionArgs = null; 
mImageExternalCursor = managedQuery(MediaStore.Images.Media.EXTERNAL_CONTENT_URI,
           projection, selection, selectionArgs, null); 
mImageInternalCursor = 
           managedQuery(MediaStore.Images.Media.INTERNAL_CONTENT_URI, projection,
           selection, selectionArgs, null); 

然后

String filePath = 
            mImageExternalCursor.getString(mImageExternalCursor.getColumnIndexOrThrow(
            Media‌Store.Images.ImageColumns.DATA));

(因为您实际上并不想拍摄新照片)。

于 2013-05-14T15:56:13.243 回答