If you are looking to copy the text from android widgets to clipboard, you can use the below code

TextView contentTextBox=(TextView) findViewById(R.id.tv_content); //get textview  from which you want to copy the content
String textToCopy = contentTextBox.getText().toString();
  if(textToCopy.length() != 0)
    {
       if(Build.VERSION.SDK_INT < Build.VERSION_CODES.HONEYCOMB) // check sdk version
          {
             android.text.ClipboardManager clipboard = (android.text.ClipboardManager) getSystemService(Context.CLIPBOARD_SERVICE);
             clipboard.setText(textToCopy);
             Toast.makeText(getApplicationContext(), "Copied to Clipboard", Toast.LENGTH_SHORT).show();
          }
       else 
          {
            android.content.ClipboardManager clipboard = (android.content.ClipboardManager) getSystemServic(Context.CLIPBOARD_SERVICE);
            android.content.ClipData clipData = android.content.ClipData.newPlainText("Clip",textToCopy);
            Toast.makeText(getApplicationContext(), "Copied to Clipboard", Toast.LENGTH_SHORT).show();
            clipboard.setPrimaryClip(clipData);
           }
    }
   else
     {
      Toast.makeText(getApplicationContext(), "Empty Selection", Toast.LENGTH_SHORT).show();
     }