如何在android中使用androidplot繪製圖形的屏幕截圖？

Question

我正在試圖在Android中繪製使用Androidplots繪製的截圖。我怎樣才能截圖使用Androidplot編程的盆栽圖？

Answer 1

您可以使用這樣一個方法：

@SuppressLint("SimpleDateFormat") 
protected final void shoot(final Context ctx, final View v, final String prefix) 
{ 

    // Get the bitmap from the view 
    v.setDrawingCacheEnabled(true); 
    final Bitmap bmp = v.getDrawingCache(); 

    final SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd@HHmmss"); 
    final Calendar cal = Calendar.getInstance(); 

    // Set file properties 
    fileJPG = prefix + "_" + sdf.format(cal.getTime()); 

    /* 
    Create a path where we will place our picture in the user's public 
    pictures directory. Note that you should be careful about what you 
    place here, since the user often manages these files. 
    For pictures and other media owned by the application, consider 
    Context.getExternalMediaDir(). 
    */ 
    final File path = 
     Environment.getExternalStoragePublicDirectory 
     (
      //Environment.DIRECTORY_PICTURES 
      //Environment.DIRECTORY_DCIM 
      Environment.DIRECTORY_DCIM + "/SomePath/" 
     ); 

    // Make sure the Pictures directory exists. 
    if(!path.exists()) 
    { 
     path.mkdirs(); 
    } 

    final File file = new File(path, fileJPG + ".jpg"); 

    try 
    { 
     final FileOutputStream fos = new FileOutputStream(file); 
     final BufferedOutputStream bos = new BufferedOutputStream(fos, 8192); 

     bmp.compress(CompressFormat.JPEG, 85, bos); 

     bos.flush(); 
     bos.close(); 

     fileJPG = file.getPath(); 
    } 
    catch (final IOException e) 
    { 
     e.printStackTrace(); 
    } 
} 

注意，你可以把你的APP的截圖只，而不是背後是什麼，即使它是半透明的。