adding some core widget related things

app/src/main/AndroidManifest.xml

@@ -63,6 +63,15 @@
             android:name=".activities.SnoozeReminderActivity"
             android:theme="@style/Theme.Transparent"/>
 
+        <activity
+            android:name=".activities.WidgetDateTimeConfigureActivity"
+            android:screenOrientation="portrait"
+            android:theme="@style/MyWidgetConfigTheme">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_CONFIGURE"/>
+            </intent-filter>
+        </activity>
+
         <service android:name=".services.SnoozeService"/>
 
         <receiver android:name=".receivers.AlarmReceiver"/>
@@ -76,5 +85,17 @@
                 <action android:name="com.htc.intent.action.QUICKBOOT_POWERON"/>
             </intent-filter>
         </receiver>
+
+        <receiver
+            android:name=".helpers.MyWidgetDateTimeProvider"
+            android:label="@string/digital_clock_and_date">
+            <intent-filter>
+                <action android:name="android.appwidget.action.APPWIDGET_UPDATE"/>
+            </intent-filter>
+
+            <meta-data
+                android:name="android.appwidget.provider"
+                android:resource="@xml/widget_date_time_info"/>
+        </receiver>
     </application>
 </manifest>

app/src/main/kotlin/com/simplemobiletools/clock/activities/WidgetDateTimeConfigureActivity.kt

@@ -0,0 +1,134 @@
+package com.simplemobiletools.clock.activities
+
+import android.app.Activity
+import android.appwidget.AppWidgetManager
+import android.content.Intent
+import android.graphics.Color
+import android.os.Bundle
+import android.widget.SeekBar
+import com.simplemobiletools.clock.R
+import com.simplemobiletools.clock.extensions.config
+import com.simplemobiletools.clock.helpers.MyWidgetDateTimeProvider
+import com.simplemobiletools.commons.dialogs.ColorPickerDialog
+import com.simplemobiletools.commons.extensions.adjustAlpha
+import kotlinx.android.synthetic.main.widget_config_date_time.*
+
+class WidgetDateTimeConfigureActivity : SimpleActivity() {
+    private var mBgAlpha = 0f
+    private var mWidgetId = 0
+    private var mBgColorWithoutTransparency = 0
+    private var mBgColor = 0
+    private var mTextColorWithoutTransparency = 0
+    private var mTextColor = 0
+
+    public override fun onCreate(savedInstanceState: Bundle?) {
+        useDynamicTheme = false
+        super.onCreate(savedInstanceState)
+        setResult(Activity.RESULT_CANCELED)
+        setContentView(R.layout.widget_config_date_time)
+        initVariables()
+
+        val extras = intent.extras
+        if (extras != null)
+            mWidgetId = extras.getInt(AppWidgetManager.EXTRA_APPWIDGET_ID, AppWidgetManager.INVALID_APPWIDGET_ID)
+
+        if (mWidgetId == AppWidgetManager.INVALID_APPWIDGET_ID)
+            finish()
+
+        config_save.setOnClickListener { saveConfig() }
+        config_bg_color.setOnClickListener { pickBackgroundColor() }
+        config_text_color.setOnClickListener { pickTextColor() }
+
+        val primaryColor = config.primaryColor
+        config_bg_seekbar.setColors(mTextColor, primaryColor, primaryColor)
+    }
+
+    override fun onResume() {
+        super.onResume()
+        window.decorView.setBackgroundColor(0)
+    }
+
+    private fun initVariables() {
+        mTextColorWithoutTransparency = config.widgetTextColor
+        updateColors()
+
+        mBgColor = config.widgetBgColor
+        if (mBgColor == 1) {
+            mBgColor = Color.BLACK
+            mBgAlpha = .2f
+        } else {
+            mBgAlpha = Color.alpha(mBgColor) / 255.toFloat()
+        }
+
+        mBgColorWithoutTransparency = Color.rgb(Color.red(mBgColor), Color.green(mBgColor), Color.blue(mBgColor))
+        config_bg_seekbar.setOnSeekBarChangeListener(bgSeekbarChangeListener)
+        config_bg_seekbar.progress = (mBgAlpha * 100).toInt()
+        updateBgColor()
+    }
+
+    private fun saveConfig() {
+        storeWidgetColors()
+        requestWidgetUpdate()
+
+        Intent().apply {
+            putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, mWidgetId)
+            setResult(Activity.RESULT_OK, this)
+        }
+        finish()
+    }
+
+    private fun storeWidgetColors() {
+        config.apply {
+            widgetBgColor = mBgColor
+            widgetTextColor = mTextColorWithoutTransparency
+        }
+    }
+
+    private fun pickBackgroundColor() {
+        ColorPickerDialog(this, mBgColorWithoutTransparency) {
+            mBgColorWithoutTransparency = it
+            updateBgColor()
+        }
+    }
+
+    private fun pickTextColor() {
+        ColorPickerDialog(this, mTextColor) {
+            mTextColorWithoutTransparency = it
+            updateColors()
+        }
+    }
+
+    private fun requestWidgetUpdate() {
+        Intent(AppWidgetManager.ACTION_APPWIDGET_UPDATE, null, this, MyWidgetDateTimeProvider::class.java).apply {
+            putExtra(AppWidgetManager.EXTRA_APPWIDGET_IDS, intArrayOf(mWidgetId))
+            sendBroadcast(this)
+        }
+    }
+
+    private fun updateColors() {
+        mTextColor = mTextColorWithoutTransparency
+        config_text_color.setBackgroundColor(mTextColor)
+        config_save.setTextColor(mTextColor)
+    }
+
+    private fun updateBgColor() {
+        mBgColor = mBgColorWithoutTransparency.adjustAlpha(mBgAlpha)
+        config_bg_color.setBackgroundColor(mBgColor)
+        config_save.setBackgroundColor(mBgColor)
+    }
+
+    private val bgSeekbarChangeListener = object : SeekBar.OnSeekBarChangeListener {
+        override fun onProgressChanged(seekBar: SeekBar, progress: Int, fromUser: Boolean) {
+            mBgAlpha = progress.toFloat() / 100.toFloat()
+            updateBgColor()
+        }
+
+        override fun onStartTrackingTouch(seekBar: SeekBar) {
+
+        }
+
+        override fun onStopTrackingTouch(seekBar: SeekBar) {
+
+        }
+    }
+}

app/src/main/kotlin/com/simplemobiletools/clock/helpers/MyWidgetDateTimeProvider.kt

@@ -0,0 +1,16 @@
+package com.simplemobiletools.clock.helpers
+
+import android.appwidget.AppWidgetManager
+import android.appwidget.AppWidgetProvider
+import android.content.Context
+
+class MyWidgetDateTimeProvider : AppWidgetProvider() {
+
+    override fun onUpdate(context: Context, appWidgetManager: AppWidgetManager, appWidgetIds: IntArray) {
+        performUpdate(context)
+    }
+
+    private fun performUpdate(context: Context) {
+
+    }
+}

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

@@ -0,0 +1,72 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/config_date_time_holder"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_centerHorizontal="true"
+    android:layout_margin="@dimen/activity_margin">
+
+    <TextView
+        android:id="@+id/config_time"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/big_margin"
+        android:gravity="center_horizontal"
+        android:textSize="@dimen/clock_text_size"
+        tools:text="00:00"/>
+
+    <TextView
+        android:id="@+id/config_date"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/config_time"
+        android:gravity="center_horizontal"
+        android:textSize="@dimen/big_text_size"
+        tools:text="Mon, 1 January"/>
+
+    <Button
+        android:id="@+id/config_bg_color"
+        android:layout_width="@dimen/widget_colorpicker_size"
+        android:layout_height="@dimen/widget_colorpicker_size"
+        android:layout_above="@+id/config_text_color"/>
+
+    <RelativeLayout
+        android:id="@+id/config_bg_seekbar_holder"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:layout_alignBottom="@+id/config_bg_color"
+        android:layout_alignTop="@+id/config_bg_color"
+        android:layout_toRightOf="@+id/config_bg_color"
+        android:background="@android:color/white">
+
+        <com.simplemobiletools.commons.views.MySeekBar
+            android:id="@+id/config_bg_seekbar"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_centerVertical="true"
+            android:paddingLeft="@dimen/activity_margin"
+            android:paddingRight="@dimen/activity_margin"/>
+    </RelativeLayout>
+
+    <Button
+        android:id="@+id/config_text_color"
+        android:layout_width="@dimen/widget_colorpicker_size"
+        android:layout_height="@dimen/widget_colorpicker_size"
+        android:layout_alignParentBottom="true"/>
+
+    <Button
+        android:id="@+id/config_save"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_alignParentBottom="true"
+        android:layout_alignParentRight="true"
+        android:fontFamily="sans-serif-light"
+        android:paddingLeft="@dimen/activity_margin"
+        android:paddingRight="@dimen/activity_margin"
+        android:text="@string/ok"
+        android:textColor="@android:color/white"
+        android:textSize="@dimen/big_text_size"/>
+
+</RelativeLayout>

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

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<RelativeLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/widget_date_time_holder"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <TextView
+        android:id="@+id/widget_time"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_marginTop="@dimen/big_margin"
+        android:gravity="center_horizontal"
+        android:textSize="@dimen/clock_text_size"
+        tools:text="00:00"/>
+
+    <TextView
+        android:id="@+id/widget_date"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_below="@+id/widget_time"
+        android:gravity="center_horizontal"
+        android:textSize="@dimen/big_text_size"
+        tools:text="Mon, 1 January"/>
+
+</RelativeLayout>

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

@@ -12,6 +12,7 @@
     <string name="timer_stopped">Timer has been stopped</string>
     <string name="max_reminder_length">Max reminder length</string>
     <string name="time_expired">Time expired</string>
+    <string name="digital_clock_and_date">Digital clock and date</string>
 
     <!-- Settings -->
     <string name="clock_tab">Relógio</string>

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

@@ -12,6 +12,7 @@
     <string name="timer_stopped">Časovač bol zastavený</string>
     <string name="max_reminder_length">Maximálna dĺžka upozorňovania</string>
     <string name="time_expired">Čas vypršal</string>
+    <string name="digital_clock_and_date">Digitálne hodiny a dátum</string>
 
     <!-- Settings -->
     <string name="clock_tab">Okno s časom</string>

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

@@ -3,6 +3,8 @@
     <dimen name="stopwatch_button_small_size">60dp</dimen>
     <dimen name="stopwatch_button_size">64dp</dimen>
     <dimen name="lap_time_size">80dp</dimen>
+    <dimen name="min_widget_height">30dp</dimen>
+    <dimen name="min_widget_width">110dp</dimen>
 
     <dimen name="clock_text_size">70sp</dimen>
     <dimen name="alarm_text_size">46sp</dimen>

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

@@ -12,6 +12,7 @@
     <string name="timer_stopped">Timer has been stopped</string>
     <string name="max_reminder_length">Max reminder length</string>
     <string name="time_expired">Time expired</string>
+    <string name="digital_clock_and_date">Digital clock and date</string>
 
     <!-- Settings -->
     <string name="clock_tab">Clock tab</string>

app/src/main/res/xml/widget_date_time_info.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<appwidget-provider
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:configure="com.simplemobiletools.clock.activities.WidgetDateTimeConfigureActivity"
+    android:initialLayout="@layout/widget_date_time"
+    android:minHeight="@dimen/min_widget_height"
+    android:minWidth="@dimen/min_widget_width"
+    android:resizeMode="horizontal|vertical"
+    android:updatePeriodMillis="60000"/>