Add round and adaptive icons for Android 8, implements #593 and #592 (#…

…705)

This adds adaptive icons for Android 8 and round icons for older Android versions which use them.
Also the bitmap icons are now moved from drawable to mipmap.

opentasks/src/main/AndroidManifest.xml

@@ -16,7 +16,8 @@
     <uses-sdk tools:overrideLibrary="org.dmfs.android.bolts"/>
 
     <application
-            android:icon="@drawable/ic_launcher"
+            android:icon="@mipmap/ic_launcher"
+            android:roundIcon="@mipmap/ic_launcher_round"
             android:label="@string/app_name"
             android:name=".TasksApplication"
             android:taskAffinity="org.dmfs.tasks.TaskListActivity"
@@ -204,7 +205,8 @@
         </receiver>
 
         <!-- custom alarm receivers -->
-        <receiver android:name="org.dmfs.tasks.notification.AlarmBroadcastReceiver"
+        <receiver
+                android:name="org.dmfs.tasks.notification.AlarmBroadcastReceiver"
                 android:permission="">
             <intent-filter>
                 <action android:name="org.dmfs.android.tasks.TASK_DUE"/>
@@ -351,13 +353,13 @@
                 android:exported="false"/>
 
         <service
-            android:name="org.dmfs.tasks.quicksettings.TaskQuickSettingsTile"
-            android:icon="@drawable/content_edit"
-            android:label="@string/quicksettingstile_create"
-            android:description="@string/quicksettingstile_create"
-            android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
+                android:name="org.dmfs.tasks.quicksettings.TaskQuickSettingsTile"
+                android:icon="@drawable/content_edit"
+                android:label="@string/quicksettingstile_create"
+                android:description="@string/quicksettingstile_create"
+                android:permission="android.permission.BIND_QUICK_SETTINGS_TILE">
             <intent-filter>
-                <action android:name="android.service.quicksettings.action.QS_TILE" />
+                <action android:name="android.service.quicksettings.action.QS_TILE"/>
             </intent-filter>
         </service>
 

opentasks/src/main/res/drawable/ic_opentasks_adaptive_fg.xml

@@ -0,0 +1,32 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+        xmlns:aapt="http://schemas.android.com/aapt"
+        android:height="24dp"
+        android:viewportHeight="28.575"
+        android:viewportWidth="28.574999"
+        android:width="24dp">
+    <path
+            android:pathData="M17.743,8.467L13.635,12.574L11.394,10.333L9.901,11.827L12.141,14.068L13.635,15.562L14.051,15.977L13.635,16.392L11.77,14.526L11.287,14.526L8.749,17.064L9.514,17.828L9.509,17.828L8.749,18.589L9.509,19.348L9.509,19.349L8.749,20.108L17.26,28.619L28.508,28.619L28.508,19.232L19.237,9.961L17.743,8.467z"
+            android:strokeColor="#00000000"
+            android:strokeWidth="1">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                    android:endX="78.5885"
+                    android:endY="90.9159"
+                    android:startX="48.7653"
+                    android:startY="61.0927"
+                    android:type="linear">
+                <item
+                        android:color="#22000000"
+                        android:offset="0.0"/>
+                <item
+                        android:color="#00000000"
+                        android:offset="1.0"/>
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+            android:fillColor="#ffffff"
+            android:pathData="m17.743,8.467 l-4.108,4.108 -2.241,-2.241 -1.494,1.494 2.241,2.241 1.494,1.494 1.494,-1.494 4.108,-4.108zM11.287,14.526 L8.749,17.063L19.826,17.063l-2.538,-2.537h-1.787l-1.866,1.866 -1.866,-1.866zM9.51,17.828 L8.749,18.588L19.826,18.588l-0.76,-0.76zM9.51,19.348 L8.749,20.108L19.826,20.108l-0.76,-0.76z"
+            android:strokeColor="#00000000"
+            android:strokeWidth="1"/>
+</vector>

opentasks/src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,4 @@
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/primary"/>
+    <foreground android:drawable="@drawable/ic_opentasks_adaptive_fg"/>
+</adaptive-icon>

opentasks/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,4 @@
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@color/primary"/>
+    <foreground android:drawable="@drawable/ic_opentasks_adaptive_fg"/>
+</adaptive-icon>