Android: requestPermissions flow

My code looks something like this:

protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    FloatingActionButton fab = (FloatingActionButton) findViewById(R.id.fab);
    fab.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            Intent i = new Intent(getApplicationContext(), DateSelectorActivity.class);
            startActivityForResult(i, 1);
        }
    });
}

protected void onActivityResult(int requestCode, int resultCode, Intent data) {

    if (requestCode == 1 && resultCode == Activity.RESULT_OK) {
        long theDate = 0;
        theDate = data.getLongExtra("theDate", theDate);
        if (theDate != 0) {
            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.READ_CALENDAR) != PackageManager.PERMISSION_GRANTED) {
                if (ActivityCompat.shouldShowRequestPermissionRationale(MainActivity.this, Manifest.permission.READ_CALENDAR)) {
                    Toast.makeText(getApplicationContext(),"Please?!",Toast.LENGTH_LONG).show();
                }
                ActivityCompat.requestPermissions(MainActivity.this, new String[]{Manifest.permission.READ_CALENDAR}, 1);
                return;
            }
            doTheCalendarReading();
        } else {
            Toast.makeText(getApplicationContext(),"fail",Toast.LENGTH_LONG).show();
        }
    }
}

public void onRequestPermissionsResult(int requestCode,
                                       @NonNull String permissions[], @NonNull int[] grantResults) {
    switch (requestCode) {
        case 1: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0  && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                doTheCalendarReading();
            } else {
                Toast.makeText(getApplicationContext(),"Oh well...",Toast.LENGTH_LONG).show();
            }
        }
    }
}


private void doTheCalendarReading() {
    String[] projection = new String[]{CalendarContract.Events.TITLE, CalendarContract.Events.EVENT_LOCATION};

    Calendar startTime = Calendar.getInstance();
    startTime.setTimeInMillis(theDate);
    startTime.set(Calendar.HOUR_OF_DAY, 0);
    startTime.set(Calendar.MINUTE, 0);
    startTime.set(Calendar.SECOND, 0);
    startTime.set(Calendar.MILLISECOND, 0);

    Calendar endTime = Calendar.getInstance();
    endTime.setTimeInMillis(theDate);
    endTime.set(Calendar.HOUR_OF_DAY, 23);
    endTime.set(Calendar.MINUTE, 59);
    endTime.set(Calendar.SECOND, 59);
    endTime.set(Calendar.MILLISECOND, 999);

    String selection = "(( " + CalendarContract.Events.DTSTART + " >= " + startTime.getTimeInMillis() + " ) AND ( " + CalendarContract.Events.DTSTART + " <= " + endTime.getTimeInMillis() + " ))";

    Cursor cursor = this.getBaseContext().getContentResolver().query(CalendarContract.Events.CONTENT_URI, projection, selection, null, null);

    if (cursor.moveToFirst()) {
        do {
            Toast.makeText( this.getApplicationContext(), "Title: " + cursor.getString(1) + " Start-Time: " + (new Date(cursor.getLong(3))).toString(), Toast.LENGTH_LONG ).show();
        } while ( cursor.moveToNext());
    }
}

The flow in general is: When pressing a button, I open an activity to receive a date (that's working fine). Once I get the date, I want to retrieve the calendar events on that date.

Regarding the line

Cursor cursor = this.getBaseContext().getContentResolver()
                   .query(CalendarContract.Events.CONTENT_URI,
                          projection, selection, null, null);

I got a red zigzag telling me I should ask for the relevant permission.

So I did and if the permission already granted I call doTheCalendarReading() and if not, I ask for the permission and if granted, again I call doTheCalendarReading().

I moved the code that requires the permission into that function but again it gives me a red zigzag telling me I need to ask for permission.

Now I'm confused.