allow changing the event date and time

app/src/main/AndroidManifest.xml

@@ -38,6 +38,11 @@
             android:label="@string/details"
             android:screenOrientation="portrait"/>
 
+        <activity
+            android:name=".activities.EventActivity"
+            android:label="@string/event"
+            android:screenOrientation="portrait"/>
+
         <activity
             android:name=".activities.LicenseActivity"
             android:label="@string/third_party_licences"

app/src/main/java/com/simplemobiletools/calendar/Formatter.java

@@ -1,13 +1,27 @@
 package com.simplemobiletools.calendar;
 
+import org.joda.time.DateTime;
 import org.joda.time.format.DateTimeFormat;
 import org.joda.time.format.DateTimeFormatter;
 
 public class Formatter {
-    private static final String EVENT_PATTERN = "d MMMM YYYY";
+    private static final String EVENT_DATE_PATTERN = "MMMM d YYYY";
+    private static final String EVENT_TIME_PATTERN = "HH:mm";
 
     public static String getEventDate(String dayCode) {
+        return getDateTime(dayCode).toString(EVENT_DATE_PATTERN);
+    }
+
+    public static String getEventDate(DateTime dateTime) {
+        return dateTime.toString(EVENT_DATE_PATTERN);
+    }
+
+    public static String getEventTime(DateTime dateTime) {
+        return dateTime.toString(EVENT_TIME_PATTERN);
+    }
+
+    public static DateTime getDateTime(String dayCode) {
         final DateTimeFormatter dateTimeFormatter = DateTimeFormat.forPattern(Constants.DATE_PATTERN);
-        return dateTimeFormatter.parseDateTime(dayCode).toString(EVENT_PATTERN);
+        return dateTimeFormatter.parseDateTime(dayCode);
     }
 }

app/src/main/java/com/simplemobiletools/calendar/activities/DetailsActivity.java

@@ -17,6 +17,9 @@ import butterknife.OnClick;
 public class DetailsActivity extends AppCompatActivity {
     @BindView(R.id.details_date) TextView mDateTV;
 
+    private static final int ADD_EVENT = 1;
+    private String dayCode;
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -27,7 +30,7 @@ public class DetailsActivity extends AppCompatActivity {
         if (intent == null)
             return;
 
-        final String dayCode = intent.getStringExtra(Constants.DAY_CODE);
+        dayCode = intent.getStringExtra(Constants.DAY_CODE);
         if (dayCode == null || dayCode.isEmpty())
             return;
 
@@ -37,6 +40,8 @@ public class DetailsActivity extends AppCompatActivity {
 
     @OnClick(R.id.details_fab)
     public void fabClicked(View view) {
-
+        final Intent intent = new Intent(getApplicationContext(), EventActivity.class);
+        intent.putExtra(Constants.DAY_CODE, dayCode);
+        startActivityForResult(intent, ADD_EVENT);
     }
 }

app/src/main/java/com/simplemobiletools/calendar/activities/EventActivity.java

@@ -0,0 +1,141 @@
+package com.simplemobiletools.calendar.activities;
+
+import android.app.DatePickerDialog;
+import android.app.TimePickerDialog;
+import android.content.Intent;
+import android.os.Bundle;
+import android.support.v7.app.AppCompatActivity;
+import android.view.View;
+import android.widget.DatePicker;
+import android.widget.TextView;
+import android.widget.TimePicker;
+
+import com.simplemobiletools.calendar.Constants;
+import com.simplemobiletools.calendar.Formatter;
+import com.simplemobiletools.calendar.R;
+
+import org.joda.time.DateTime;
+
+import butterknife.BindView;
+import butterknife.ButterKnife;
+import butterknife.OnClick;
+
+public class EventActivity extends AppCompatActivity {
+    @BindView(R.id.event_start_date) TextView mStartDate;
+    @BindView(R.id.event_start_time) TextView mStartTime;
+    @BindView(R.id.event_end_date) TextView mEndDate;
+    @BindView(R.id.event_end_time) TextView mEndTime;
+
+    private DateTime mEventStartDateTime;
+    private DateTime mEventEndDateTime;
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setContentView(R.layout.activity_event);
+        ButterKnife.bind(this);
+
+        final Intent intent = getIntent();
+        if (intent == null)
+            return;
+
+        final String dayCode = intent.getStringExtra(Constants.DAY_CODE);
+        if (dayCode == null || dayCode.isEmpty())
+            return;
+
+        mEventStartDateTime = Formatter.getDateTime(dayCode);
+        updateStartDate();
+        updateStartTime();
+
+        mEventEndDateTime = Formatter.getDateTime(dayCode);
+        updateEndDate();
+        updateEndTime();
+    }
+
+    private void updateStartDate() {
+        mStartDate.setText(Formatter.getEventDate(mEventStartDateTime));
+    }
+
+    private void updateStartTime() {
+        mStartTime.setText(Formatter.getEventTime(mEventStartDateTime));
+    }
+
+    private void updateEndDate() {
+        mEndDate.setText(Formatter.getEventDate(mEventEndDateTime));
+    }
+
+    private void updateEndTime() {
+        mEndTime.setText(Formatter.getEventTime(mEventEndDateTime));
+    }
+
+    @OnClick(R.id.event_start_date)
+    public void startDateClicked(View view) {
+        new DatePickerDialog(this, startDateSetListener, mEventStartDateTime.getYear(), mEventStartDateTime.getMonthOfYear() - 1,
+                mEventStartDateTime.getDayOfMonth()).show();
+    }
+
+    @OnClick(R.id.event_start_time)
+    public void startTimeClicked(View view) {
+        new TimePickerDialog(this, startTimeSetListener, mEventStartDateTime.getHourOfDay(), mEventStartDateTime.getMinuteOfHour(), true)
+                .show();
+    }
+
+    @OnClick(R.id.event_end_date)
+    public void endDateClicked(View view) {
+        new DatePickerDialog(this, endDateSetListener, mEventEndDateTime.getYear(), mEventEndDateTime.getMonthOfYear() - 1,
+                mEventEndDateTime.getDayOfMonth()).show();
+    }
+
+    @OnClick(R.id.event_end_time)
+    public void endTimeClicked(View view) {
+        new TimePickerDialog(this, endTimeSetListener, mEventEndDateTime.getHourOfDay(), mEventEndDateTime.getMinuteOfHour(), true).show();
+    }
+
+    private final DatePickerDialog.OnDateSetListener startDateSetListener = new DatePickerDialog.OnDateSetListener() {
+        @Override
+        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
+            dateSet(year, monthOfYear, dayOfMonth, true);
+        }
+    };
+
+    private TimePickerDialog.OnTimeSetListener startTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
+        @Override
+        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
+            timeSet(hourOfDay, minute, true);
+        }
+    };
+
+    private DatePickerDialog.OnDateSetListener endDateSetListener = new DatePickerDialog.OnDateSetListener() {
+        @Override
+        public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
+            dateSet(year, monthOfYear, dayOfMonth, false);
+        }
+    };
+
+    private TimePickerDialog.OnTimeSetListener endTimeSetListener = new TimePickerDialog.OnTimeSetListener() {
+        @Override
+        public void onTimeSet(TimePicker view, int hourOfDay, int minute) {
+            timeSet(hourOfDay, minute, false);
+        }
+    };
+
+    private void dateSet(int year, int month, int day, boolean isStart) {
+        if (isStart) {
+            mEventStartDateTime = mEventStartDateTime.withYear(year).withMonthOfYear(month + 1).withDayOfMonth(day);
+            updateStartDate();
+        } else {
+            mEventEndDateTime = mEventEndDateTime.withYear(year).withMonthOfYear(month + 1).withDayOfMonth(day);
+            updateEndDate();
+        }
+    }
+
+    private void timeSet(int hours, int minutes, boolean isStart) {
+        if (isStart) {
+            mEventStartDateTime = mEventStartDateTime.withHourOfDay(hours).withMinuteOfHour(minutes);
+            updateStartTime();
+        } else {
+            mEventEndDateTime = mEventEndDateTime.withHourOfDay(hours).withMinuteOfHour(minutes);
+            updateEndTime();
+        }
+    }
+}

app/src/main/java/com/simplemobiletools/calendar/activities/MainActivity.java

@@ -193,7 +193,6 @@ public class MainActivity extends AppCompatActivity implements Calendar {
 
     private void updateMonth(String month) {
         mMonthTV.setText(month);
-        mMonthTV.setTextColor(mTextColor);
     }
 
     private void setupLabels() {

app/src/main/res/layout/activity_event.xml

@@ -0,0 +1,63 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout android:id="@+id/event_holder"
+                xmlns:android="http://schemas.android.com/apk/res/android"
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:orientation="vertical"
+                android:padding="@dimen/activity_margin">
+
+    <TextView
+        android:id="@+id/event_start_label"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="@string/start"
+        android:textSize="@dimen/day_text_size"/>
+
+    <TextView
+        android:id="@+id/event_start_date"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/event_start_label"
+        android:padding="@dimen/activity_margin"
+        android:text="January 1 1970"
+        android:textSize="@dimen/day_text_size"/>
+
+    <TextView
+        android:id="@+id/event_start_time"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/event_start_label"
+        android:layout_toRightOf="@id/event_start_date"
+        android:padding="@dimen/activity_margin"
+        android:text="00:00"
+        android:textSize="@dimen/day_text_size"/>
+
+    <TextView
+        android:id="@+id/event_end_label"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/event_start_date"
+        android:layout_marginTop="@dimen/activity_margin"
+        android:text="@string/end"
+        android:textSize="@dimen/day_text_size"/>
+
+    <TextView
+        android:id="@+id/event_end_date"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/event_end_label"
+        android:padding="@dimen/activity_margin"
+        android:text="January 1 1970"
+        android:textSize="@dimen/day_text_size"/>
+
+    <TextView
+        android:id="@+id/event_end_time"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/event_end_label"
+        android:layout_toRightOf="@id/event_end_date"
+        android:padding="@dimen/activity_margin"
+        android:text="00:00"
+        android:textSize="@dimen/day_text_size"/>
+
+</RelativeLayout>

app/src/main/res/values/strings.xml

@@ -1,8 +1,13 @@
 <resources>
     <string name="app_name">Simple Calendar</string>
 
+    <!-- Event -->
+    <string name="event">Event</string>
+
     <!-- Details -->
     <string name="details">Details</string>
+    <string name="start">Start</string>
+    <string name="end">End</string>
 
     <!-- About -->
     <string name="about">About</string>