alterdiolog1

private void setAialog() {    //创建一个AlertDialog    AlertDialog.Builder builder = new AlertDialog.Builder(SettingActivity.this);    //设置标题    builder.setTitle("退出提示");    //设置内容    builder.setMessage("退出登录后，你将不能再接单，发单了！");    //设置按钮    builder.setPositiveButton("确认退出",            new DialogInterface.OnClickListener() {

                @Override                public void onClick(DialogInterface dialog, int which) {                    spf.edit().putBoolean("login",false).commit();                    spf.edit().putString("name",null).commit();                    startActivity(new Intent(SettingActivity.this,MainActivity.class));                    System.exit(0);                }            });    //设置按钮    builder.setNegativeButton("取消退出", new DialogInterface.OnClickListener() {

        @Override        public void onClick(DialogInterface dialog, int which) {

        }    });    AlertDialog dialog = builder.create();    //显示出来    dialog.show();}