来自URI的TableLayout背景

Question

如何在带有URI的tablelayout上使用setBackgroundDrawable方法？

Answer 1

public String getRealPathFromURI(Uri contentUri) { 
     String[] proj = { MediaStore.Images.Media.DATA }; 
     Cursor cursor = managedQuery(contentUri, proj, null, null, null); 
     int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA); 
     cursor.moveToFirst(); 
     return cursor.getString(column_index); 
    }