来自Uri

Question

我正试图打开画廊并选择任何文档（ms，pdf等）或图像。但是在写入ByteArrayOutputStream时会导致内存不足错误。

在Android清单中，largeHeap = true。

Intent intent = new Intent();
    String[] mimeTypes = {"image/*",
            "application/pdf",
            "application/ppt",
            "application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
            "application/vnd.ms-excel",
            "application/vnd.openxmlformats-officedocument.presentationml.presentation",
            "application/vnd.ms-powerpoint",
            "application/vnd.openxmlformats-officedocument.wordprocessingml.document",
            "application/msword",
            "text/*"};
    intent.setType("*/*");
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        intent.putExtra(Intent.EXTRA_MIME_TYPES, mimeTypes);
    }
    intent.setAction(Intent.ACTION_GET_CONTENT);
    startActivityForResult(Intent.createChooser(intent, "Select Document"), 10);

onActivityResult

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == 10 && resultCode == RESULT_OK) {
        if (data != null) {
            if (data.getData() != null) {
                try {
                    InputStream iStream = getContentResolver().openInputStream(data.getData());
                    byte[] inputData = getBytes(iStream);
                } catch (FileNotFoundException e) {
                    e.printStackTrace();
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

private byte[] getBytes(InputStream inputStream) throws IOException {
    ByteArrayOutputStream byteBuffer = new ByteArrayOutputStream();
    int bufferSize = 1024 * 8;
    byte[] buffer = new byte[bufferSize];

    int len = 0;
    while ((len = inputStream.read(buffer)) != -1) {
        byteBuffer.write(buffer, 0, len);
    }
    return byteBuffer.toByteArray();
}

请有人可以帮助我做什么？

谢谢。