Android 16 support, fix edge to edge

app/build.gradle

@@ -21,7 +21,7 @@ android {
     defaultConfig {
         applicationId "it.danieleverducci.nextcloudmaps"
         minSdkVersion 23
-        targetSdkVersion 34
+        targetSdkVersion 36
         compileSdkVersion 34
         versionCode 9
         versionName "0.4.0"

app/src/main/java/it/danieleverducci/nextcloudmaps/activity/NextcloudMapsStyledActivity.java

@@ -9,6 +9,8 @@ import androidx.appcompat.app.AppCompatActivity;
 
 import org.osmdroid.views.overlay.TilesOverlay;
 
+import it.danieleverducci.nextcloudmaps.utils.EdgeToEdgeUtils;
+
 public class NextcloudMapsStyledActivity extends AppCompatActivity {
 
     @Override

app/src/main/java/it/danieleverducci/nextcloudmaps/activity/about/AboutActivity.java

@@ -31,12 +31,14 @@ import androidx.appcompat.widget.Toolbar;
 import it.danieleverducci.nextcloudmaps.BuildConfig;
 import it.danieleverducci.nextcloudmaps.R;
 import it.danieleverducci.nextcloudmaps.activity.NextcloudMapsStyledActivity;
+import it.danieleverducci.nextcloudmaps.utils.EdgeToEdgeUtils;
 
 public class AboutActivity extends NextcloudMapsStyledActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_about);
+        EdgeToEdgeUtils.clearSystemInsets(this);
 
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);

app/src/main/java/it/danieleverducci/nextcloudmaps/activity/main/MainActivity.java

@@ -49,6 +49,7 @@ import it.danieleverducci.nextcloudmaps.api.ApiProvider;
 import it.danieleverducci.nextcloudmaps.fragments.GeofavoriteListFragment;
 import it.danieleverducci.nextcloudmaps.fragments.GeofavoriteMapFragment;
 import it.danieleverducci.nextcloudmaps.repository.GeofavoriteRepository;
+import it.danieleverducci.nextcloudmaps.utils.EdgeToEdgeUtils;
 import it.danieleverducci.nextcloudmaps.utils.SettingsManager;
 
 public class MainActivity extends NextcloudMapsStyledActivity {
@@ -118,6 +119,7 @@ public class MainActivity extends NextcloudMapsStyledActivity {
 
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+        EdgeToEdgeUtils.clearSystemInsets(this);
 
         boolean showMap = SettingsManager.isGeofavoriteListShownAsMap(this);
         if (showMap)

app/src/main/java/it/danieleverducci/nextcloudmaps/activity/mappicker/MapPickerActivity.java

@@ -32,6 +32,7 @@ import it.danieleverducci.nextcloudmaps.R;
 import it.danieleverducci.nextcloudmaps.activity.NextcloudMapsStyledActivity;
 import it.danieleverducci.nextcloudmaps.activity.detail.GeofavoriteDetailActivity;
 import it.danieleverducci.nextcloudmaps.databinding.ActivityMapPickerBinding;
+import it.danieleverducci.nextcloudmaps.utils.EdgeToEdgeUtils;
 import it.danieleverducci.nextcloudmaps.utils.GeoUriParser;
 import it.danieleverducci.nextcloudmaps.utils.MapUtils;
 
@@ -70,6 +71,7 @@ public class MapPickerActivity extends NextcloudMapsStyledActivity {
             mViewHolder.centerMapOn(l.getLatitude(), l.getLongitude());
 
         setContentView(mViewHolder.getRootView());
+        EdgeToEdgeUtils.clearSystemInsets(this);
     }
 
     /**

app/src/main/java/it/danieleverducci/nextcloudmaps/activity/settings/SettingsActivity.java

@@ -25,6 +25,7 @@ import androidx.appcompat.widget.Toolbar;
 
 import it.danieleverducci.nextcloudmaps.R;
 import it.danieleverducci.nextcloudmaps.activity.NextcloudMapsStyledActivity;
+import it.danieleverducci.nextcloudmaps.utils.EdgeToEdgeUtils;
 import it.danieleverducci.nextcloudmaps.utils.SettingsManager;
 
 public class SettingsActivity extends NextcloudMapsStyledActivity {
@@ -32,6 +33,7 @@ public class SettingsActivity extends NextcloudMapsStyledActivity {
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_settings);
+        EdgeToEdgeUtils.clearSystemInsets(this);
 
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);

app/src/main/java/it/danieleverducci/nextcloudmaps/utils/EdgeToEdgeUtils.java

@@ -0,0 +1,50 @@
+package it.danieleverducci.nextcloudmaps.utils;
+
+import android.annotation.SuppressLint;
+import android.app.Activity;
+import android.content.Context;
+import android.graphics.Color;
+import android.os.Build;
+import android.util.TypedValue;
+import android.view.View;
+import android.view.ViewGroup;
+
+import androidx.core.content.ContextCompat;
+import androidx.core.view.ViewCompat;
+
+import it.danieleverducci.nextcloudmaps.R;
+
+public class EdgeToEdgeUtils {
+
+    /**
+     * Called in an activity's onCreate method, adds paddings to clear the system bars, in any orientation,
+     * to make all the content visible. Useful to adapt an old android project to the mandatory introduction
+     * of edge to edge in Android 15.
+     * @param a the activity to pad
+     */
+    public static void clearSystemInsets(Activity a) {
+        // This color will be used as background in the system bars in case of edge to edge.
+        // Defaults to R.color.colorAccent, if defined, black otherwise.
+        int accentColor = ContextCompat.getColor(a, R.color.defaultBackground);
+
+        ViewGroup rootLayout = a.findViewById(android.R.id.content);
+        rootLayout.setBackgroundColor(accentColor);
+
+        // Register to receive insets callbacks
+        ViewCompat.setOnApplyWindowInsetsListener(rootLayout, (v, insets) -> {
+            // Top padding is the device insets plus the actionbar height
+            boolean hasActionBar = a.getActionBar() != null && a.getActionBar().isShowing();
+            int actionbarHeightInPixels = 0;
+            if (hasActionBar && Build.VERSION.SDK_INT >= Build.VERSION_CODES.UPSIDE_DOWN_CAKE) {
+                Context context = rootLayout.getContext();
+                TypedValue tv = new TypedValue();
+                if (context.getTheme().resolveAttribute(android.R.attr.actionBarSize, tv, true))
+                    actionbarHeightInPixels = TypedValue.complexToDimensionPixelSize(tv.data, context.getResources().getDisplayMetrics());
+            }
+            int topPadding = insets.getStableInsetTop() + actionbarHeightInPixels;
+            v.setPadding(insets.getStableInsetLeft(), topPadding, insets.getStableInsetRight(), insets.getStableInsetBottom());
+            return insets;
+        });
+    }
+}
+