BitmapFactory.Options inSampleSize作物圖像

Question

我想調整圖像和我用下面的代碼做它：

public Bitmap createWatermark(Bitmap src, String watermark, int x, int y) { 
    Log.d("Original Dimensions", src.getWidth() + " x " + src.getHeight()); 

    BitmapFactory.Options options = new BitmapFactory.Options(); 
    options.inSampleSize = 2; 
    ByteArrayOutputStream stream = new ByteArrayOutputStream(); 
    src.compress(Bitmap.CompressFormat.JPEG, 30, stream); 
    byte[] byte_arr = stream.toByteArray(); 
    Bitmap result = BitmapFactory.decodeByteArray(byte_arr, 0, byte_arr.length, options).copy(Bitmap.Config.ARGB_8888, true); 
    Log.d("Result Dimensions", result.getWidth() + " x " + result.getHeight()); 

    Canvas canvas = new Canvas(result); 
    canvas.drawBitmap(src, 0, 0, null); 

    Paint paint = new Paint(); 
    paint.setColor(Color.YELLOW); 
    paint.setTextSize(40); 
    canvas.drawText(watermark, x, y, paint); 
    paint.setColor(Color.BLACK); 
    canvas.drawText(watermark, x, y+50, paint); 
    return result; 
} 

的日誌如下：

d /原始尺寸（11180）： 1920×2560

d /結果尺寸（11180）：960×1280

但返回被裁剪到960×1280，而不是重新調整大小的圖像。

Answer 1

嘗試：

Bitmap b = BitmapFactory.decodeByteArray(imageAsBytes, 0, imageAsBytes.length) 
myImageView.setImageBitmap(Bitmap.createScaledBitmap(b, 960, 1280, false));