如何在android的图片视图上添加文本水印，使用此代码但不起作用

<ImageView
    android:id="@+id/imageView"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

ImageView imageView = findViewById(R.id.imageView);
imageView.setImageResource(R.drawable.your_image);

Bitmap originalBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.your_image);

Bitmap watermarkBitmap = Bitmap.createBitmap(originalBitmap.getWidth(), originalBitmap.getHeight(), Bitmap.Config.ARGB_8888);

Canvas canvas = new Canvas(watermarkBitmap);
canvas.drawBitmap(originalBitmap, 0, 0, null);

Paint paint = new Paint();
paint.setColor(Color.WHITE);
paint.setTextSize(50);
paint.setAntiAlias(true);

canvas.drawText("Your Watermark Text", x, y, paint);

imageView.setImageBitmap(watermarkBitmap);

ImageView imageView = findViewById(R.id.imageView);
imageView.setImageResource(R.drawable.your_image);

Bitmap originalBitmap = BitmapFactory.decodeResource(getResources(), R.drawable.your_image);
Bitmap watermarkBitmap = Bitmap.createBitmap(originalBitmap.getWidth(), originalBitmap.getHeight(), Bitmap.Config.ARGB_8888);

Canvas canvas = new Canvas(watermarkBitmap);
canvas.drawBitmap(originalBitmap, 0, 0, null);

Paint paint = new Paint();
paint.setColor(Color.WHITE);
paint.setTextSize(50);
paint.setAntiAlias(true);

canvas.drawText("Your Watermark Text", x, y, paint);

imageView.setImageBitmap(watermarkBitmap);