chore: Added build flavors to separate FULL and DEMO app releases.

fix: Subtitle based on build flavor. Demo package name ignored in settings on purpose.

app/build.gradle

@@ -45,13 +45,23 @@ android {
     dataBinding {
         enabled = true
     }
-
     // Configure only for each module that uses Java 8 language features
     // (either in its source code or through dependencies).
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
     }
+    flavorDimensions "version"
+    productFlavors {
+        demo {
+            applicationIdSuffix ".demo"
+            // This new string resource item will be generated at build time.
+            resValue "string", "app_id_suffix", ".demo"
+        }
+        full {
+            resValue "string", "app_id_suffix", ""
+        }
+    }
 }
 
 // We use Parcelize which is an experimental feature at the moment so we need to add the following
@@ -207,5 +217,4 @@ dependencies {
 
     // Dependencies for local unit tests. JUnit is a unit testing framework for Java.
     testImplementation "junit:junit:$versions.junit"
-
 }

app/src/demo/java/com/baruckis/mycryptocoins/utilities/ConstantsFlavor.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2018-2019 Andrius Baruckis www.baruckis.com | mycryptocoins.baruckis.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.baruckis.mycryptocoins.utilities
+
+/**
+ * Constants used throughout the app for DEMO build.
+ */
+
+// This testing sandbox has free access to all endpoints and all subscription plans to test with a
+// snapshot of CoinMarketCap market data. It is used for DEMO purpose.
+const val API_SERVICE_BASE_URL = "https://sandbox-api.coinmarketcap.com/"
+
+const val API_SERVICE_AUTHENTICATION_KEY = "" // TODO: Use your API Key provided by CoinMarketCap Professional API Developer Portal.
+
+// This is dedicated test Ad Unit ID for Android rewarded video.
+const val ADMOB_AD_UNIT_ID = "ca-app-pub-3940256099942544/5224354917"

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

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright 2018-2019 Andrius Baruckis www.baruckis.com | mycryptocoins.baruckis.com
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~ http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!-- Strings used throughout the app for DEMO build. -->
+
+<resources>
+
+    <string name="app_version" translatable="false">@string/app_version_demo</string>
+    <string name="app_subtitle" translatable="false">@string/app_subtitle_demo</string>
+
+    <!-- App ID provided by Google AdMob is just for testing. -->
+    <string name="admob_app_id" translatable="false">"ca-app-pub-3940256099942544~3347511713"</string>
+
+</resources>

app/src/full/java/com/baruckis/mycryptocoins/utilities/ConstantsFlavor.kt

@@ -0,0 +1,30 @@
+/*
+ * Copyright 2018-2019 Andrius Baruckis www.baruckis.com | mycryptocoins.baruckis.com
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.baruckis.mycryptocoins.utilities
+
+/**
+ * Constants used throughout the app for FULL build.
+ */
+
+// This is live production environment with the latest market data of CoinMarketCap.
+// It is used for FULL release version to Google Play Store.
+const val API_SERVICE_BASE_URL = "https://pro-api.coinmarketcap.com/"
+
+const val API_SERVICE_AUTHENTICATION_KEY = "" // TODO: Use your API Key provided by CoinMarketCap Professional API Developer Portal.
+
+// This is dedicated real Ad Unit ID for Android rewarded video.
+const val ADMOB_AD_UNIT_ID = "" // TODO: Use your Ad Unit ID provided by Google AdMob.

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

@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+  ~ Copyright 2018-2019 Andrius Baruckis www.baruckis.com | mycryptocoins.baruckis.com
+  ~
+  ~ Licensed under the Apache License, Version 2.0 (the "License");
+  ~ you may not use this file except in compliance with the License.
+  ~ You may obtain a copy of the License at
+  ~
+  ~ http://www.apache.org/licenses/LICENSE-2.0
+  ~
+  ~ Unless required by applicable law or agreed to in writing, software
+  ~ distributed under the License is distributed on an "AS IS" BASIS,
+  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  ~ See the License for the specific language governing permissions and
+  ~ limitations under the License.
+  -->
+
+<!-- Strings used throughout the app for FULL build. -->
+
+<resources>
+
+    <string name="app_version" translatable="false">@string/app_version_full</string>
+    <string name="app_subtitle" translatable="false">@string/app_subtitle_full</string>
+
+    <!-- TODO: Use your App ID provided by Google AdMob. -->
+    <string name="admob_app_id" translatable="false">""</string>
+
+</resources>

app/src/main/java/com/baruckis/mycryptocoins/ui/mainlist/MainActivity.kt

@@ -64,6 +64,8 @@ class MainActivity : BaseActivity(), HasSupportFragmentInjector {
         setContentView(R.layout.activity_main)
         setSupportActionBar(toolbar)
 
+        supportActionBar?.subtitle = getString(R.string.app_subtitle)
+
         subscribeUi()
     }
 

app/src/main/java/com/baruckis/mycryptocoins/ui/settings/SettingsFragment.kt

@@ -379,7 +379,7 @@ class SettingsFragment : PreferenceFragmentCompat(), Injectable, RewardedVideoAd
     // Link in Google Play store app on the phone.
     private fun openAppInPlayStore() {
         val uri = Uri.parse("market://" + GOOGLE_PLAY_STORE_APP_DETAILS_PATH +
-                context?.packageName)
+                getPackageName())
         val goToMarketIntent = Intent(Intent.ACTION_VIEW, uri)
 
         var flags = Intent.FLAG_ACTIVITY_NO_HISTORY or
@@ -397,7 +397,7 @@ class SettingsFragment : PreferenceFragmentCompat(), Injectable, RewardedVideoAd
         } catch (e: ActivityNotFoundException) {
             val intent = Intent(Intent.ACTION_VIEW,
                     Uri.parse(GOOGLE_PLAY_STORE_APPS_URL +
-                            GOOGLE_PLAY_STORE_APP_DETAILS_PATH + context?.packageName))
+                            GOOGLE_PLAY_STORE_APP_DETAILS_PATH + getPackageName()))
 
             startActivity(intent, null)
         }
@@ -412,9 +412,15 @@ class SettingsFragment : PreferenceFragmentCompat(), Injectable, RewardedVideoAd
         intent.putExtra(Intent.EXTRA_TEXT,
                 viewModel.stringsLocalization.getString(R.string.share_app_message) +
                         GOOGLE_PLAY_STORE_APPS_URL + GOOGLE_PLAY_STORE_APP_DETAILS_PATH +
-                        context?.packageName)
+                        getPackageName())
         startActivity(Intent.createChooser(intent,
                 viewModel.stringsLocalization.getString(R.string.share_app_chooser)))
     }
 
+    private fun getPackageName(): String? {
+        // Get a string resource item generated at build time by Gradle.
+        val suffix = getString(R.string.app_id_suffix)
+        return context?.packageName?.removeSuffix(suffix)
+    }
+
 }

app/src/main/java/com/baruckis/mycryptocoins/utilities/Constants.kt

@@ -27,16 +27,16 @@ const val PERCENT_FORMAT_PATTERN = "##0.00"
 const val ADD_TASK_REQUEST = 1
 const val SERVER_CALL_DELAY_MILLISECONDS: Long = 1000
 const val FLIPVIEW_CHARACTER_LIMIT = 3
-const val API_SERVICE_BASE_URL = "https://sandbox-api.coinmarketcap.com/"
+
 const val API_SERVICE_AUTHENTICATION_NAME = "X-CMC_PRO_API_KEY"
-const val API_SERVICE_AUTHENTICATION_KEY = "" // TODO: Use your API Key provided by CoinMarketCap Professional API Developer Portal.
+
 const val API_SERVICE_RESULTS_LIMIT = 5000 // This is max number from CoinMarketCap API.
 const val TIME_12h_FORMAT_PATTERN = "hh:mm:ss"
 const val TIME_24h_FORMAT_PATTERN = "HH:mm:ss"
 const val CRYPTOCURRENCY_IMAGE_URL = "https://s2.coinmarketcap.com/static/img/coins"
 const val CRYPTOCURRENCY_IMAGE_SIZE_PX = "128x128"
 const val CRYPTOCURRENCY_IMAGE_FILE = ".png"
 const val SEARCH_TYPING_DELAY_MILLISECONDS: Long = 500
-const val ADMOB_AD_UNIT_ID = "ca-app-pub-3940256099942544/5224354917" // TODO: Use your Ad Unit ID provided by Google AdMob. This is dedicated test Ad Unit ID for Android rewarded video.
+
 const val GOOGLE_PLAY_STORE_APPS_URL = "https://play.google.com/store/apps/"
 const val GOOGLE_PLAY_STORE_APP_DETAILS_PATH = "details?id="

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

@@ -20,10 +20,12 @@
 
     <string name="app_name">"My Crypto Coins"</string>
 
-    <string name="app_version" translatable="false">"v1.0.0"</string>
+    <!--  major . minor . patch -->
+    <string name="app_version_full" translatable="false">"v1.0.0"</string>
+    <string name="app_version_demo" translatable="false">"v1.0.0 DEMO"</string>
 
-    <!-- TODO: Use your App ID provided by Google AdMob. This one is just for testing. -->
-    <string name="admob_app_id" translatable="false">"ca-app-pub-3940256099942544~3347511713"</string>
+    <string name="app_subtitle_full" translatable="false">""</string>
+    <string name="app_subtitle_demo" translatable="false">"DEMO"</string>
 
 
     <string name="action_settings">"Settings"</string>