位图复制到相机文件夹

Question

我在保存从LayoutView获取的位图图像时出现了一个奇怪的问题。下面的代码创建位图并将其作为图像导出到SD卡上的调色板文件夹。它实际上是这样做的，但是当我打开Gallery应用程序时，我的Camera文件夹中还有一个位图副本。有没有一种方法可以直接复制到文件夹中，而无需在“相机”文件夹中进行复制？此外，如果有一种方法可以删除相机文件夹中的相同副本，那也可以。谢谢！

LinearLayout paletteView = (LinearLayout)findViewById(R.id.ExportBitmapLayout); 
paletteView.setDrawingCacheEnabled(true); 
paletteView.buildDrawingCache(); 
Bitmap bm = paletteView.getDrawingCache(); 

String filename = "PALETTETITLE"; 
filename.toLowerCase(); 
filename.replace(" ","_"); 
filename = filename.substring(0, (filename.length() < 30) ? filename.length() : 29); 

ContentValues values = new ContentValues(); 
values.put(Images.Media.DATE_ADDED, System.currentTimeMillis()); 
values.put(Images.Media.MIME_TYPE, "image/jpeg"); 
values.put(Images.Media.TITLE, filename); 

boolean created = createDirIfNotExists("palettes"); 

if (created) 
    Log.i("Directory created","OK");  
else 
    Log.i("Directory exists","OK"); 

//if successful 
try 
{ 
    OutputStream fOut = null; 

    String longString = Environment.getExternalStorageDirectory() 
      + File.separator + "palettes" +File.separator + filename+".jpg"; 

    File f = new File(longString); 
    fOut = new FileOutputStream(f); 

    bm.compress(Bitmap.CompressFormat.JPEG, 100, fOut); 

    fOut.flush(); 
    fOut.close(); 

    MediaStore.Images.Media.insertImage(getContentResolver(), f.getAbsolutePath(), filename, filename); 

    Context context = ExportMenuImageActivity.this.getApplicationContext(); 
    Toast toast = Toast.makeText(context, "Image saved to Gallery! NOTE: Unintentional save in Camera folder. Fix in next update.", Toast.LENGTH_LONG); 
    toast.show(); 

    MediaScannerConnection.scanFile(context, new String[] {longString}, null, new MediaScannerConnection.OnScanCompletedListener() 
    { 
     public void onScanCompleted(String path, Uri uri) 
     { 
     } 
    }); 


} 

catch (FileNotFoundException e) 
{ 
    e.printStackTrace(); 
} 

catch (IOException e) 
{ 
    e.printStackTrace(); 
} 

Answer 1

Here is the complete solution of your problem.You can not do anything like protecting the camera folder to save images. But you can delete the latest image jsut after your image inserted inside the database. 

Here is the code for deleting the latest file from the camera folder, Just do copy and paste it and call this method whenever you want to delete the latest file from you camera folder.. 


private void deleteLatest() { 
     // TODO Auto-generated method stub 
     File f = new File(Environment.getExternalStorageDirectory() + "/DCIM/Camera"); 

     //Log.i("Log", "file name in delete folder : "+f.toString()); 
     File [] files = f.listFiles(); 

     //Log.i("Log", "List of files is: " +files.toString()); 
     Arrays.sort(files, new Comparator<Object>() 
       { 
      public int compare(Object o1, Object o2) { 

       if (((File)o1).lastModified() > ((File)o2).lastModified()) { 
        //   Log.i("Log", "Going -1"); 
        return -1; 
       } else if (((File)o1).lastModified() < ((File)o2).lastModified()) { 
        //  Log.i("Log", "Going +1"); 
        return 1; 
       } else { 
        //  Log.i("Log", "Going 0"); 
        return 0; 
       } 
      } 

       }); 

     //Log.i("Log", "Count of the FILES AFTER DELETING ::"+files[0].length()); 
     files[0].delete(); 

    } 

If still you have any query then let me know!!! 
Cheers...