拍摄的图像在Android中裁剪后延伸错误

Question

我想从我的相机捕捉图像并在指定的坐标下裁剪捕捉的图像然后在另一幅图像的中间绘制它。以下代码不会崩溃，但由于图像拉伸错误，所捕获的图像被拧紧，。

我哪里错了？

Merry X'mas！

//Get the bottom image Bitmap 

Bitmap bottomImage = BitmapFactory.decodeResource(getResources(), SelectDollarActivity.selectedImageId); 

//Get the captured image Bitmap 

Bitmap capturedImage = BitmapFactory.decodeFile(CaptureImage.cImagePath) ; 

//************ CROP THE CAPTURED IMAGE ******************* 


int targetBitmapWidth = bottomImage.getWidth();  
int targetBitmapHeight = bottomImage.getHeight() ;  

//create a Bitmap with specified width & height 

Bitmap clippedBitmap = Bitmap.createBitmap(targetBitmapWidth, targetBitmapHeight, Bitmap.Config.ARGB_8888); 

//Construct a canvas with the specified bitmap to draw into. 

Canvas canvas = new Canvas(clippedBitmap); 

//************** cropping process goes HERE......... 

//Create a new rectangle with the specified coordinates 

RectF rectf = new RectF(left, top, right, bottom); 

//Create an empty path 

Path path = new Path(); 

//Add a closed oval contour to the path 

path.addOval(rectf, Path.Direction.CW); 

//Intersect the current clip with the specified path : CROPPING 

canvas.clipPath(path); 

canvas.drawBitmap(capturedImage, null, new Rect(0, 0, targetBitmapWidth, targetBitmapHeight), null); 

    //******** MERGING PROCESS *******************   

//Construct a canvas with the specified bitmap to draw into. 

Canvas combo = new Canvas(bottomImage); 

// Then draw the second on top of that 

combo.drawBitmap(clippedBitmap, 0f, 0f, null); 

// bottomImage is now a composite of the two. so, display the bottom image  


//************** DISPLAY THE MERGED IMAGE **************** 

((ImageView)findViewById(R.id.billImage)).setImageBitmap(bottomImage); 

Answer 1

Documentation指出drawBitmap接受两个更多的参数，宽度和高度。在您的代码中，

combo.drawBitmap(clippedBitmap, 0f, 0f, null); 

只有定位。

您将需要设置更多的参数当然，但它应该工作：D