如何捕捉整个布局当布局超过屏幕大小android

Question

在我的应用程序中，我放大我的布局，当我放大我的布局我想捕捉我的布局。我尝试了下面的代码，但它只捕获在屏幕上可见的内容请帮助我如何捕捉布局。

 View content = findViewById(R.id.main_container); 
    content.setDrawingCacheEnabled(true); 
    Bitmap bitmap = content.getDrawingCache(); 
    // actual width of the image (img is a Bitmap object) 
    // int width = bitmap.getWidth(); 
    // int height = bitmap.getHeight(); 

    // recreate the new Bitmap and set it back 

     bitmap = Bitmap.createBitmap(Bitmap.createBitmap(
       l1.getWidth() * 2, l1.getHeight() * 2, 
       Bitmap.Config.ARGB_8888)); 


    // Bitmap mb = bitmap.copy(Bitmap.Config.ARGB_8888, true); 
    Canvas bitmapCanvas = new Canvas(); 
    bitmapCanvas.setBitmap(bitmap); 
    bitmapCanvas.scale(2.0f, 2.0f); 
    content.draw(bitmapCanvas); 
    ByteArrayOutputStream out = new ByteArrayOutputStream(); 

    bitmap.compress(Bitmap.CompressFormat.PNG, 100, out); 

    File imagesFolder = new File(Environment.getExternalStorageDirectory(), 
      "saved_images"); 
    imagesFolder.mkdirs(); 
    String fileName = "final-" + String.valueOf(n) + ".jpg"; 
    File output = new File(imagesFolder, fileName); 
    while (output.exists()) { 
     n++; 
     fileName = "final-" + String.valueOf(n) + ".jpg"; 
     output = new File(imagesFolder, fileName); 
    } 
    Uri uriSavedImage = Uri.fromFile(output); 
    OutputStream imageFileOS; 
    try { 
     imageFileOS = getContentResolver().openOutputStream(uriSavedImage); 
     imageFileOS.write(out.toByteArray()); 
     imageFileOS.flush(); 
     imageFileOS.close(); 




    } catch (FileNotFoundException e) { 
     e.printStackTrace(); 
    } catch (IOException e) { 
     e.printStackTrace(); 
    } 
    content.setDrawingCacheEnabled(false); 

Answer 1

下面是抓取布局屏幕截图的另一种方法。我正在写这篇文章，因此代码可能包含一些错误（目前无法验证）;

ViewGroup bg = (ViewGroup) findViewById(R.id.your_layout_id); 
Bitmap screenshot = Bitmap.createBitmap(vg.getWidth(), vg.getHeight(), 
             Bitmap.Config.RGBA8888); 
Canvas c = new Canvas(screenshot); 
vg.draw(c); 

现在我不确定这个工作是否更好，但至少应该根据文档绘制一些东西。