Give up on using vector drawables for launch icons

Instead use svg files in art/ and a script to build the png files.

app/src/main/AndroidManifest.xml

@@ -15,8 +15,8 @@
     <application
         android:allowBackup="true"
         android:fullBackupContent="@xml/backupscheme"
-        android:icon="@drawable/ic_launcher"
+        android:icon="@mipmap/ic_launcher"
-        android:roundIcon="@drawable/ic_launcher_round"
+        android:roundIcon="@mipmap/ic_launcher_round"
         android:banner="@drawable/banner"
         android:label="@string/application_name"
         android:theme="@style/Theme.Termux"

app/src/main/java/com/termux/filepicker/TermuxDocumentsProvider.java

@@ -75,7 +75,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         row.add(Root.COLUMN_TITLE, applicationName);
         row.add(Root.COLUMN_MIME_TYPES, ALL_MIME_TYPES);
         row.add(Root.COLUMN_AVAILABLE_BYTES, BASE_DIR.getFreeSpace());
-        row.add(Root.COLUMN_ICON, R.drawable.ic_launcher);
+        row.add(Root.COLUMN_ICON, R.mipmap.ic_launcher);
         return result;
     }
 
@@ -236,7 +236,7 @@ public class TermuxDocumentsProvider extends DocumentsProvider {
         row.add(Document.COLUMN_MIME_TYPE, mimeType);
         row.add(Document.COLUMN_LAST_MODIFIED, file.lastModified());
         row.add(Document.COLUMN_FLAGS, flags);
-        row.add(Document.COLUMN_ICON, R.drawable.ic_launcher);
+        row.add(Document.COLUMN_ICON, R.mipmap.ic_launcher);
     }
 
 }

app/src/main/res/drawable-anydpi/ic_launcher.xml

@@ -1,30 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-    android:height="48dp"
-    android:width="48dp"
-    android:viewportWidth="48"
-    android:viewportHeight="48">
-
-    <!-- Screen and border. -->
-    <path android:fillColor="#000"
-          android:strokeColor="#BFCBCD"
-          android:strokeWidth="2"
-          android:pathData="M7,4
-                            l34,0
-                            q3 0,3 3
-                            l0,34
-                            q0 3, -3 3
-                            l-34,0
-                            q-3 0, -3-3
-                            l0 -34
-                            q0 -3, 3 -3"
-          />
-
-    <!-- Block cursor. -->
-    <path android:fillColor="#FFF"
-          android:pathData="M12,12
-                            l5,0
-                            l0,10
-                            l-5,0"
-        />
-
-</vector>

app/src/main/res/drawable-anydpi/ic_launcher_round.xml

@@ -1,25 +0,0 @@
-<vector xmlns:android="http://schemas.android.com/apk/res/android"
-        android:height="48dp"
-        android:width="48dp"
-        android:viewportWidth="48"
-        android:viewportHeight="48">
-
-    <!-- Screen and border. -->
-    <path android:fillColor="#000"
-          android:strokeColor="#BFCBCD"
-          android:strokeWidth="2"
-          android:pathData="M 24, 24
-                            m -21, 0
-                            a 21,21 0 1,0 42,0
-                            a 21,21 0 1,0 -42,0"
-    />
-
-    <!-- Block cursor. -->
-    <path android:fillColor="#FFF"
-          android:pathData="M15,15
-                            l5,0
-                            l0,10
-                            l-5,0"
-        />
-
-</vector>

art/generate-pngs.sh

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+for DENSITY in mdpi hdpi xhdpi xxhdpi xxxhdpi; do
+	case $DENSITY in
+		mdpi) SIZE=48;;
+		hdpi) SIZE=72;;
+		xhdpi) SIZE=96;;
+		xxhdpi) SIZE=144;;
+		xxxhdpi) SIZE=192;;
+	esac
+
+	FOLDER=../app/src/main/res/mipmap-$DENSITY
+	mkdir -p $FOLDER
+
+	for FILE in ic_launcher ic_launcher_round; do
+		PNG=$FOLDER/$FILE.png
+		rsvg-convert -w $SIZE -h $SIZE $FILE.svg > $PNG
+		zopflipng -y $PNG $PNG
+	done
+done

art/ic_launcher.svg

@@ -0,0 +1,26 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48">
+
+    <!-- Screen and border. -->
+    <path fill="#000"
+          stroke="#BFCBCD"
+          stroke-width="2"
+          d="M7,4
+             l34,0
+             q3 0,3 3
+             l0,34
+             q0 3, -3 3
+             l-34,0
+             q-3 0, -3-3
+             l0 -34
+             q0 -3, 3 -3"
+    />
+
+    <!-- Block cursor. -->
+    <path fill="#FFF"
+          d="M12,12
+             l5,0
+             l0,10
+             l-5,0"
+    />
+
+</svg>

art/ic_launcher_round.svg

@@ -0,0 +1,21 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 48 48">
+
+    <!-- Screen and border. -->
+    <path fill="#000"
+          stroke="#BFCBCD"
+          stroke-width="2"
+          d="M 24, 24
+             m -21, 0
+             a 21,21 0 1,0 42,0
+             a 21,21 0 1,0 -42,0"
+    />
+
+    <!-- Block cursor. -->
+    <path fill="#FFF"
+          d="M15,15
+             l5,0
+             l0,10
+             l-5,0"
+    />
+
+</svg>