Question

我对android很新。我正在开发一个应用程序，我自动设置事件。这是我的代码，我指的是http://developer.android.com/guide/topics/providers/calendar-provider.html

public boolean setReminder(int SelectedHour,int SelectedMinute,int NewHour,int NewMinute)
{
    try{
        long calID = 3;
        long startMillis = 0;
        long endMillis = 0;
        Calendar StartTime = Calendar.getInstance();
        StartTime.set(StartTime.YEAR,StartTime.MONTH,StartTime.DAY_OF_MONTH,SelectedHour,SelectedMinute);
        startMillis = StartTime.getTimeInMillis();
        Calendar EndTime = Calendar.getInstance();
        int NewMonth = StartTime.MONTH+1;int NewDay = StartTime.DAY_OF_MONTH;
        EndTime.set(StartTime.YEAR,NewMonth,NewDay,NewHour,NewMinute);
        endMillis = EndTime.getTimeInMillis();

        TimeZone tz = TimeZone.getDefault();

        ContentResolver cr = getContentResolver();
        ContentValues values = new ContentValues();
        values.put(CalendarContract.Events.DTSTART, startMillis);
        values.put(CalendarContract.Events.DTEND, endMillis);
        values.put(CalendarContract.Events.TITLE, "Jazzercise");
        values.put(CalendarContract.Events.DESCRIPTION, "Group workout");
        values.put(CalendarContract.Events.CALENDAR_ID, calID);
        values.put(CalendarContract.Events.EVENT_TIMEZONE,  tz.getID());
        //Getting Problem in Line Below 
        Uri uri = cr.insert(CalendarContract.Events.CONTENT_URI,values);
        // get the event ID that is the last element in the Uri
        long eventID = Long.parseLong(uri.getLastPathSegment());


        Uri.Builder builder = CalendarContract.CONTENT_URI.buildUpon();
        builder.appendPath("time");
        ContentUris.appendId(builder, startMillis);
        Intent intent = new Intent(Intent.ACTION_VIEW).setData(builder.build());
        startActivity(intent);
   return true;
    }
    catch (Exception ex)
    {
        ex.printStackTrace();
        return false;
    }

我在下方 RedMark

Uri uri = cr.insert(CalendarContract.Events.CONTENT_URI,values);

错误在说 调用需要权限，user.code可能会拒绝该权限，应明确检查权限是否可用...

我已经在我的清单文件中添加了 android.permission.ACCESS_FINE_LOCATION 和 android.permission.ACCESS_COARSE_LOCATION 等权限

虽然我的应用程序运行但是当我调用Calender Intent时它给了我 网页不可用 。

我也尝试过Adding events date and time in android calendar

但仍无效。

提前感谢..

Answer 1

这意味着您要求的功能在android＆gt; = 6中可能会要求Runtime Permissions - 用户在运行时必须允许的权限。请点击链接了解如何实施正确的流程。

// Here, thisActivity is the current activity
if (ContextCompat.checkSelfPermission(thisActivity,
                Manifest.permission.READ_CALENDAR)
        != PackageManager.PERMISSION_GRANTED) {

// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(thisActivity,
        Manifest.permission.READ_CALENDAR)) {

    // Show an expanation to the user *asynchronously* -- don't block
    // this thread waiting for the user's response! After the user
    // sees the explanation, try again to request the permission.

} else {

    // No explanation needed, we can request the permission.

    ActivityCompat.requestPermissions(thisActivity,
            new String[]{Manifest.permission.READ_CALENDAR},
            MY_PERMISSIONS_REQUEST_READ_CALENDAR;

    // MY_PERMISSIONS_REQUEST_READ_CALENDAR is an
    // app-defined int constant. The callback method gets the
    // result of the request.
}
}else{

Uri uri = cr.insert(CalendarContract.Events.CONTENT_URI,values);

}

Answer 2

由于缺少日历权限，可能是您收到此错误。将日历权限添加到您的清单文件中。

从日历中读取：

<强> android.permission.READ_CALENDAR

要写入日历：

<强> android.permission.WRITE_CALENDAR

Answer 3

因为这对许多程序员来说似乎仍然是一个问题...在这里我的解决方案：我有一个按钮来开始与日历的交互。这将首先打开一个带有2个按钮的消息框，其中用户必须允许进一步的操作。如果他允许另一个Messagebox出现并要求用户允许阅读日历

private void addMessageBox() {
    AlertDialog.Builder dlgAlert  = new AlertDialog.Builder(getContext());
    dlgAlert.setMessage("Events mit lokalem Kalender synchronisieren?");
    dlgAlert.setTitle("Zugriff auf Kalender");
    dlgAlert.setCancelable(true);


    dlgAlert.setPositiveButton("Erlauben",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    permissions = new Permissions(getActivity());
                    if (!permissions.checkPermissionReadCalendar()) {
                        permissions.requestPermissionReadCalendar(Permissions.CALENDAR_PERMISSION_REQUEST_READ);
                    } else {
                        try {
                            addToLocalCalendar();
                        } catch (ParseException e) {
                            e.printStackTrace();
                        }
                    }
                }
            });
    dlgAlert.setNegativeButton("Verbieten",
            new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int which) {
                    //return true;
                }
            });

    dlgAlert.create().show();
}

我使用在此论坛中找到的自定义类控制权限：

Permissions permissions;

上课：

public class Permissions {


public static final int EXTERNAL_STORAGE_PERMISSION_REQUEST_WRITE = 0;
public static final int EXTERNAL_STORAGE_PERMISSION_REQUEST_READ = 1;
public static final int CALENDAR_PERMISSION_REQUEST_READ = 2;

Activity activity;
Context mContext;

public Permissions(Activity activity) {
    this.activity = activity;
    this.mContext = activity;
}



public boolean checkPermissionReadCalendar(){
    int result = ContextCompat.checkSelfPermission(activity, Manifest.permission.READ_CALENDAR);
    if (result == PackageManager.PERMISSION_GRANTED){
        return true;
    } else {
        return false;
    }
}

public void requestPermissionReadCalendar(int requestCode){
    if (ActivityCompat.shouldShowRequestPermissionRationale(activity, Manifest.permission.READ_CALENDAR)){
        Toast.makeText(mContext.getApplicationContext(), "Kalenderzugriff nicht möglich. Bitte erlaube Kalenderzugriff in den App Einstellungen.", Toast.LENGTH_LONG).show();
    } else {
        ActivityCompat.requestPermissions(activity,new String[]{Manifest.permission.READ_CALENDAR},requestCode);
    }
}

U以某种方式不需要请求写入权限...在应用程序设置中，只有一个日历权限，如果您调用读取或写入权限，则允许该权限。在清单中添加：

<uses-permission android:name="android.permission.READ_CALENDAR" />
<uses-permission android:name="android.permission.WRITE_CALENDAR" />

如果用户拒绝该权限，他将始终收到他没有足够权利执行此操作的Toast消息。他必须手动允许App设置中的权限。对于红色下划线部分..它表示应用程序必须检查用户是否允许以下操作。如果您单击此行并按Alt + Enter，将插入此代码：

   if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.READ_CALENDAR) != PackageManager.PERMISSION_GRANTED) {
        // TODO: Consider calling
        //    ActivityCompat#requestPermissions
        // here to request the missing permissions, and then overriding
        //   public void onRequestPermissionsResult(int requestCode, String[] permissions,
        //                                          int[] grantResults)
        // to handle the case where the user grants the permission. See the documentation
        // for ActivityCompat#requestPermissions for more details.
        return true;
    }

检查应用程序是否具有权限，如果没有则返回。

Answer 4

我们需要检查并请求这两个权限。

  if (ActivityCompat.checkSelfPermission(activity!!, Manifest.permission.READ_CALENDAR) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(activity!!, arrayOf(Manifest.permission.READ_CALENDAR), 30);
    }

   if (ActivityCompat.checkSelfPermission(activity!!, Manifest.permission.WRITE_CALENDAR) != PackageManager.PERMISSION_GRANTED) {
        ActivityCompat.requestPermissions(activity!!, arrayOf(Manifest.permission.WRITE_CALENDAR), 35);
    }

如果我们同时请求 READ 和 WRITE Calendar 权限。不会再出现这个错误。

调用需要Calender中内容URI的权限

4 个答案: