java.lang.SecurityException:拒绝权限:打开提供程序com.android.providers

Question

在日历视图中添加事件。当在日历中添加事件时，给出以下权限错误：

java.lang.SecurityException: Permission Denial: opening provider com.android.providers.calendar.CalendarProvider2 from ProcessRecord{3620f5c 13430:google.com/u0a149} (pid=13430, uid=10149) requires android.permission.READ_CALENDAR or android.permission.WRITE_CALENDAR

在android Manifest文件中授予权限。：

我的代码如下：

calendarView.setOnDateChangeListener(new CalendarView.OnDateChangeListener() {
@Override
public void onSelectedDayChange(@NonNull CalendarView calendarView, int i, int i1, int i2) {
String date =(i2 + "/" + (i1 + 1) + "/" + i);
showAlertDialog(date);
}
});
}
public void showAlertDialog(final String dateString1) {

LayoutInflater inflater = this.getLayoutInflater();
final View dialogView = inflater.inflate(R.layout.alert_dialog_item, null);

final EditText etTitle = (EditText) dialogView.findViewById(R.id.etTitle);
final EditText etEvent = (EditText) dialogView.findViewById(R.id.etEvent);
final EditText etEventDate = (EditText) dialogView.findViewById(R.id.etStartDate);
//final EditText etTime = (EditText) dialogView.findViewById(R.id.etTime);
final EditText etEndDate = (EditText) dialogView.findViewById(R.id.etEndDate);
Calendar cal = Calendar.getInstance();
long date1 = cal.getTimeInMillis();
SimpleDateFormat dateFormat = new SimpleDateFormat("MMM dd yyyy, HH:mm a");
String dateString = dateFormat.format(date1);
etEventDate.setText(dateString);
long date2 = cal.getTimeInMillis() + 1000 * 60 * 60;
String endDate = dateFormat.format(date2);
etEndDate.setText(endDate);

final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setView(dialogView);
builder.setTitle("Add Event");
builder.setPositiveButton("ADD", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
String title = etTitle.getText().toString();
String eventDescription = etEvent.getText().toString();
String startDate = etEventDate.getText().toString();
String endDate = etEndDate.getText().toString();
//ContactsContract.CommonDataKinds.Event event = new ContactsContract.CommonDataKinds.Event(Color.RED,startDate,eventDescription);
try {
cr = getApplicationContext().getContentResolver();
cv = new ContentValues();
cv.put(CalendarContract.Events.DTSTART, startDate);
cv.put(CalendarContract.Events.DTEND, endDate);
cv.put(CalendarContract.Events.TITLE, title);
cv.put(CalendarContract.Events.DESCRIPTION, eventDescription);
cv.put(CalendarContract.Events.CALENDAR_ID, 1);
cv.put(CalendarContract.Events.EVENT_TIMEZONE, "UTC/GMT+5:30");
cv.put(CalendarContract.Events.CALENDAR_COLOR_KEY, Color.RED);
Uri uri = cr.insert(CalendarContract.Events.CONTENT_URI, cv);
if (ActivityCompat.checkSelfPermission(Event.this, Manifest.permission.READ_CALENDAR) != PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(Event.this, Manifest.permission.WRITE_CALENDAR) != PackageManager.PERMISSION_GRANTED) {
}else if(ActivityCompat.checkSelfPermission(Event.this, Manifest.permission.READ_CALENDAR) == PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(Event.this, Manifest.permission.WRITE_CALENDAR) == PackageManager.PERMISSION_GRANTED){
// ContentResolver contentResolver = getContentResolver();
//ContentValues contentValues = new ContentValues();

long eventID = Long.parseLong(uri.getLastPathSegment());
Toast.makeText(Event.this, (int) eventID, Toast.LENGTH_SHORT).show();
}

}catch(Exception ex){
ex.printStackTrace();
}
}
});
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialogInterface, int i) {
builder.setCancelable(true);
}
});
builder.show();
}
@Override
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {

switch (requestCode) {
case MY_PERMISSIONS_REQUEST_WRITE_CALENDAR:
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
Toast.makeText(this, " Permission is Granted", Toast.LENGTH_SHORT).show();
} else {
//code for deny
}
break;
}
}

如何授予读写权限以添加事件。请指导我获得此权限。

如何在与移动日历同步的日历中添加事件。

Answer 1

首先，您需要向manifest.xml添加权限对于日历，您需要添加此

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

在运行时，您需要再次请求权限。所以，你可以创建一些函数来检查它。为你的回调声明一个vble

final int callbackId = 42;

并调用您的函数来检查权限

checkPermission(callbackId, Manifest.permission.READ_CALENDAR, Manifest.permission.WRITE_CALENDAR);

这是要声明的函数：

private void checkPermission(int callbackId, String... permissionsId) {
boolean permissions = true;
for (String p : permissionsId) {
permissions = permissions && ContextCompat.checkSelfPermission(this, p) == PERMISSION_GRANTED;
}
if (!permissions)
ActivityCompat.requestPermissions(this, permissionsId, callbackId);
}

Answer 2

您需要清单和运行时权限才能做到这一点：

请参阅https://developer.android.com/training/permissions/requesting