android-studio - 如何按 day_of_week 更改我的背景图片

Question

在android studio java中通过当前日期名称更改背景图像的代码，例如，如果今天是星期一，那么背景图像是A图像，如果星期二那么b图像......谢谢

标签： android-studio

Answer 1

您可以查看星期几并更改图像。请尝试如下

private static void getDaysOfTheWeek() {
    Calendar cal = Calendar.getInstance(TimeZone.getDefault());
    cal.setTime(new Date());

    switch(cal.get(Calendar.DAY_OF_WEEK)){
        case Calendar.MONDAY:
            System.out.println("image 1");
            break;
        case Calendar.TUESDAY:
            System.out.println("image 2");
            break;
        case Calendar.WEDNESDAY:
            System.out.println("image 3");
            break;
        case Calendar.THURSDAY:
            System.out.println("image 4");
            break;
        case Calendar.FRIDAY:
            System.out.println("image 5");
            break;
        case Calendar.SATURDAY:
            System.out.println("image 6");
            break;
        case Calendar.SUNDAY:
            System.out.println("image 5");
            break;
    }
}