Android添加书签(二)(5)

 
        if (v == upButton && currentPos > 0) { 
            bookmarkAdapter.moveItemUp(currentPos); 
            currentPos--; 
        } else if (v == downButton && currentPos >= 0 
                && currentPos < bookmarkAdapter.getCount() - 1) { 
            bookmarkAdapter.moveItemDown(currentPos); 
            currentPos++; 
        } else if (v == deleteButton) { 
            showDialog(DIALOG_YES_NO_MESSAGE); 
        } else if (v == topButton) { 
            currentPos = bookmarkAdapter.moveToTop(currentPos); 
        } else if (v == bottomButton) { 
            currentPos = bookmarkAdapter.moveToBottom(currentPos); 
        } else if (v == launchButton) { 
            String url = bookmarkAdapter.getUrl(currentPos); 
            if (url != null) { 
                Intent i = new Intent("android.intent.action.VIEW", 
                        Uri.parse(url)); 
                startActivity(i); 
            } 
        } 
 
    } 
 
    protected Dialog onCreateDialog(int id) { 
        if (id == DIALOG_YES_NO_MESSAGE) { 
            return new AlertDialog.Builder(Bookmarker.this) 
                    .setIcon(android.R.drawable.ic_dialog_alert) 
                    .setTitle("Confirm Delete")