Calendar.DAY_OF_WEEK 不能正常工作 - ANDROID

Question

我正在开发一个应用程序，它需要获取当前星期几和当前时间以根据日期和日期更改整数。

我做了这个，但我遇到的问题很少：周二中午结冰。它给了我这个::

Unexpected constant; 
expected one of: Calendar.FRIDAY, Calendar.MONDAY, Calendar.SATURDAY, Calendar.SUNDAY, Calendar.THURSDAY, Calendar.TUESDAY, Calendar.WEDNESDAY less...
This check warns if a switch statement does not explicitly include all the 
values declared by the typedef @IntDef declaration.

而且我不知道如何修复它。

这是我的代码：当我写这篇文章时，除了星期二外它都有效：

int countuser = 0;
                int day = Calendar.getInstance().get(Calendar.DAY_OF_WEEK);
                int timeOfDay = Calendar.getInstance().get(Calendar.HOUR_OF_DAY);

                switch (day) {
                    case Calendar.FRIDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 0;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 1;
                        }
                        break;
                    case Calendar.MONDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 2;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 3;
                        }
                        break;
                    case Calendar.SATURDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 4;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 5;
                        }
                        break;
                    case Calendar.SUNDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 6;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 7;
                        }
                        break;
                    case Calendar.THURSDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 8;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 9;
                        }
                        break;
                    case Calendar.TUESDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 10;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 11;
                        }
                        break;
                    case Calendar.WEDNESDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 12;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 13;
                        }
                        break;
                }

但我想根据日期对 countuser 进行排序，所以我做了这个，但它冻结了我的应用程序：

switch (day) {
                    case Calendar.FRIDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 8;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 9;
                        }
                        break;
                    case Calendar.MONDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 0;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 1;
                        }
                        break;
                    case Calendar.SATURDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 10;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 11;
                        }
                        break;
                    case Calendar.SUNDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 12;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 13;
                        }
                        break;
                    case Calendar.THURSDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 6;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 7;
                        }
                        break;
                    case Calendar.TUESDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 2;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 3;
                        }
                        break;
                    case Calendar.WEDNESDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 4;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 5;
                        }
                        break;
                }

同样，当我尝试对 "case Calendar.MONDAY":

进行排序时

 switch (day) {
                    case Calendar.MONDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 0;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 1;
                        }
                        break;
                    case Calendar.TUESDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 2;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 3;
                        }
                        break;
                    case Calendar.WEDNESDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 4;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 5;
                        }
                        break;

                    case Calendar.THURSDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 6;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 7;
                        }
                        break;
                    case Calendar.FRIDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 8;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 9;
                        }
                        break;

                    case Calendar.SATURDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 10;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 11;
                        }
                        break;
                    case Calendar.SUNDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 12;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 13;
                        }


                }

那么我该如何获取当前星期几和时间来更改我的 Integer 的值？我尝试了很多方法，但它要么死机，要么一整天都不起作用...

非常感谢。

编辑：

这是我的进口清单：

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.content.SharedPreferences;
import android.graphics.Color;
import android.graphics.Typeface;
import android.os.AsyncTask;
import android.preference.PreferenceManager;
import android.support.v7.app.AlertDialog;
import android.text.Html;
import android.view.Gravity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.SimpleAdapter;
import android.widget.TableLayout;
import android.widget.TableRow;
import android.widget.TextView;
import android.widget.Toast;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.net.HttpURLConnection;
import java.net.URL;
import java.net.URLEncoder;
import java.util.ArrayList;
import java.util.Calendar;
import java.util.HashMap;

Answer 1

我没有足够的代表发表评论，但是你可以 post 你的进口吗？并尝试将其放入 try-catch 块中。

编辑：

try-catch 块将 try 到 catch 您的代码可能抛出的异常。

    try {
        switch (day) {
                    case Calendar.FRIDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 0;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 1;
                        }
                        break;
                    case Calendar.MONDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 2;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 3;
                        }
                        break;
                    case Calendar.SATURDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 4;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 5;
                        }
                        break;
                    case Calendar.SUNDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 6;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 7;
                        }
                        break;
                    case Calendar.THURSDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 8;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 9;
                        }
                        break;
                    case Calendar.TUESDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 10;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 11;
                        }
                        break;
                    case Calendar.WEDNESDAY:
                        if (timeOfDay > 22 || timeOfDay < 16) {
                            countuser = 12;
                        } else if (timeOfDay >= 16 || timeOfDay <= 22) {
                            countuser = 13;
                        }
                        break;
        }
    } catch(Exception e){
        e.printStackTrace();
    }

Calendar.DAY_OF_WEEK 不能正常工作 - ANDROID

Calendar.DAY_OF_WEEK dosn't work fine - ANDROID

java

android

calendar

dayofweek