dialog

 AlertDialog.Builder builder=new AlertDialog.Builder(SsqBetConfirmActivity.this);
        builder.setTitle("退出提示");
        builder.setMessage("是否选择保存本次选号?");
        builder.setPositiveButton("清除", new DialogInterface.OnClickListener() {
            @Override
            public void onClick(DialogInterface dialog, int which) {
                ssqBetInfo.getSsqBetInfoItems().clear();
                edit.clear();
                edit.commit();
                finish();
            }
        });

        builder.setNegativeButton("保存", new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                // TODO Auto-generated method stub

                saveObject();
                finish();
            }
        });

        builder.show();