fix gradlew build

.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

app/build.gradle

@@ -3,6 +3,10 @@ plugins {
 }
 
 android {
+    // legacy flags
+    aaptOptions.cruncherEnabled = false
+    aaptOptions.useNewCruncher = false
+
     compileSdkVersion 30
 
     defaultConfig {
@@ -39,4 +43,4 @@ dependencies {
     testImplementation 'junit:junit:4.+'
     androidTestImplementation 'androidx.test.ext:junit:1.1.2'
     androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
-}
+}

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

@@ -13,6 +13,7 @@
         android:layout_marginStart="8dp"
         android:layout_marginTop="8dp"
         android:layout_marginEnd="8dp"
+        android:layout_gravity="center_horizontal"
         android:textAlignment="center"
         android:textSize="20sp"
         app:layout_constraintBottom_toBottomOf="parent"

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

@@ -13,6 +13,7 @@
         android:layout_marginStart="8dp"
         android:layout_marginTop="8dp"
         android:layout_marginEnd="8dp"
+        android:layout_gravity="center_horizontal"
         android:textAlignment="center"
         android:textSize="20sp"
         app:layout_constraintBottom_toBottomOf="parent"

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

@@ -13,6 +13,7 @@
         android:layout_marginStart="8dp"
         android:layout_marginTop="8dp"
         android:layout_marginEnd="8dp"
+        android:layout_gravity="center_horizontal"
         android:textAlignment="center"
         android:textSize="20sp"
         app:layout_constraintBottom_toBottomOf="parent"