我正在做二维码发生器到目前为止，我做了一个发生器按钮和保存按钮。很好用。我正在尝试使用共享按钮。作为一个初学者，我花了几天的时间才弄明白，但我仍然无法使它工作。在这个代码中，如果我单击share，那么应用程序将关闭。

/**Barcode share*/

        findViewById(R.id.share_barcode).setOnClickListener(v -> {
            Bitmap b = BitmapFactory.decodeResource(getResources(),R.id.qr_image);
            Intent share = new Intent(Intent.ACTION_SEND);
            share.setType("image/jpeg");
            ByteArrayOutputStream bytes = new ByteArrayOutputStream();
            b.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
            String path = MediaStore.Images.Media.insertImage(getContentResolver(), b, "Title", null);
            Uri imageUri =  Uri.parse(path);
            share.putExtra(Intent.EXTRA_STREAM, imageUri);
            startActivity(Intent.createChooser(share, "Select"));
        });

我猜问题出在路径上。我用 savepath 保存二维码图像。也许这和 String path 所以我试过了 String savePath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM) + "/Camera/";; 没用了。所以可能是不同的问题，我不知道怎么解决。你能告诉我怎么修理吗？
主要活动

public class MainActivity extends AppCompatActivity {

    private String inputValue;
    private String savePath = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM) + "/Camera/";
    private Bitmap bitmap;
    private QRGEncoder qrgEncoder;
    private ImageView qrImage;
    private EditText edtValue;
    private AppCompatActivity activity;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        qrImage = findViewById(R.id.qr_image);
        edtValue = findViewById(R.id.edt_value);
        activity = this;

/**Barcode Generator*/
        findViewById(R.id.generate_barcode).setOnClickListener(view -> {
            inputValue = edtValue.getText().toString().trim();
            if (inputValue.length() > 0) {
                WindowManager manager = (WindowManager) getSystemService(WINDOW_SERVICE);
                Display display = manager.getDefaultDisplay();
                Point point = new Point();
                display.getSize(point);
                int width = point.x;
                int height = point.y;
                int smallerDimension = width < height ? width : height;
                smallerDimension = smallerDimension * 3 / 4;

                qrgEncoder = new QRGEncoder(
                        inputValue, null,
                        QRGContents.Type.TEXT,
                        smallerDimension);
                qrgEncoder.setColorBlack(Color.BLACK);
                qrgEncoder.setColorWhite(Color.WHITE);
                try {
                    bitmap = qrgEncoder.getBitmap();
                    qrImage.setImageBitmap(bitmap);
                } catch (Exception e) {
                    e.printStackTrace();

                }
            } else {
                edtValue.setError(getResources().getString(R.string.value_required));
            }
        });
/**Barcode save*/
        findViewById(R.id.save_barcode).setOnClickListener(v -> {
            String filename = edtValue.getText().toString().trim();
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
                try {
                    ContentResolver resolver = getContentResolver();
                    ContentValues contentValues = new ContentValues();
                    contentValues.put(MediaStore.MediaColumns.DISPLAY_NAME, filename + ".jpg");
                    contentValues.put(MediaStore.MediaColumns.MIME_TYPE, "image/jpg");
                    contentValues.put(MediaStore.MediaColumns.RELATIVE_PATH, Environment.DIRECTORY_DCIM);
                    Uri imageUri = resolver.insert(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, contentValues);
                    OutputStream fos = resolver.openOutputStream(Objects.requireNonNull(imageUri));
                    bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);
                    Objects.requireNonNull(fos).close();
                    Toast toast= Toast.makeText(getApplicationContext(),
                            "Image Saved. Check your gallery.", Toast.LENGTH_SHORT);
                    toast.setGravity(Gravity.TOP|Gravity.CENTER_HORIZONTAL, 0, 0);
                    toast.show();

                    edtValue.setText(null);
                } catch (IOException e) {
                    e.printStackTrace();
                }
            } else {
                if (ContextCompat.checkSelfPermission(getApplicationContext(), Manifest.permission.WRITE_EXTERNAL_STORAGE) == PackageManager.PERMISSION_GRANTED) {
                    try {
                        boolean save = new QRGSaver().save(savePath, filename, bitmap, QRGContents.ImageType.IMAGE_JPEG);
                        String result = save ? "Image Saved. Check your gallery." : "Image Not Saved";
                        Toast.makeText(activity, result, Toast.LENGTH_LONG).show();
                        edtValue.setText(null);
                    } catch (Exception e) {
                        e.printStackTrace();
                    }
                } else {
                    ActivityCompat.requestPermissions(activity, new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE}, 0);
                }
            }
        });

        /**Barcode share*/

        findViewById(R.id.share_barcode).setOnClickListener(v -> {
            Bitmap b = BitmapFactory.decodeResource(getResources(),R.id.qr_image);
            Intent share = new Intent(Intent.ACTION_SEND);
            share.setType("image/jpeg");
            ByteArrayOutputStream bytes = new ByteArrayOutputStream();
            b.compress(Bitmap.CompressFormat.JPEG, 100, bytes);
            String path = MediaStore.Images.Media.insertImage(getContentResolver(), b, "Title", null);
            Uri imageUri =  Uri.parse(path);
            share.putExtra(Intent.EXTRA_STREAM, imageUri);
            startActivity(Intent.createChooser(share, "Select"));
        });

    }

}