Android 第一次运行程序提示框操作

preferences = getSharedPreferences("count",MODE_WORLD_READABLE);
int count = preferences.getInt("count", 0);

//判断程序与第几次运行，如果是第一次运行则跳转到引导页面
if (count == 0) {
Intent intent = new Intent();
intent.setClass(getApplicationContext(),LaunchGuideViewActivity.class);
startActivity(intent);
this.finish();
}
Editor editor = preferences.edit();
//存入数据
editor.putInt("count", ++count);
//提交修改
editor.commit();