Android以编程方式设置图像大小

// 加载图像
InputStream inputStream = context.getAssets().open("image.jpg");
BitmapFactory.Options options = new BitmapFactory.Options();
options.inJustDecodeBounds = true;
BitmapFactory.decodeStream(inputStream, null, options);
inputStream.close();

// 设置图像大小
options.inSampleSize = 2; // 缩小图像大小
options.inJustDecodeBounds = false;
BitmapFactory.decodeStream(inputStream, null, options);
inputStream.close();

// 创建缩放后的 Bitmap 对象
Bitmap bitmap = BitmapFactory.decodeStream(inputStream, null, options);
inputStream.close();

// 设置 ImageView 的源
imageView.setImageBitmap(bitmap);