[移动开发]android java 判断时间格式为 下午 2:30 像微信聊天的时间显示格式

public static String morningAfternoo() {
    String timeStr = "上午";
    Date date = new Date();
    SimpleDateFormat df = new SimpleDateFormat("HH");
    String str = df.format(date);
    int a = Integer.parseInt(str);

    SimpleDateFormat df1 = new SimpleDateFormat("HH:mm");
    String time = df1.format(date);

    if (a >= 0 && a <= 6) {
        timeStr = "凌晨";
    }
    if (a > 6 && a <= 12) {
        timeStr = "上午";
    }
    if (a > 12 && a <= 13) {
        timeStr = "中午";
    }
    if (a > 13 && a <= 18) {
        timeStr = "下午";
    }
    if (a > 18 && a <= 24) {
        timeStr = "晚上";
    }
    return timeStr+" "+time;
}