WIP accepting generic intents with geo:// uri

.idea/deploymentTargetDropDown.xml

@@ -0,0 +1,17 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetDropDown">
+    <runningDeviceTargetSelectedWithDropDown>
+      <Target>
+        <type value="RUNNING_DEVICE_TARGET" />
+        <deviceKey>
+          <Key>
+            <type value="VIRTUAL_DEVICE_PATH" />
+            <value value="$USER_HOME$/.android/avd/Nexus_4_API_30.avd" />
+          </Key>
+        </deviceKey>
+      </Target>
+    </runningDeviceTargetSelectedWithDropDown>
+    <timeTargetWasSelectedWithDropDown value="2021-09-30T18:16:49.313988Z" />
+  </component>
+</project>

README.md

@@ -17,5 +17,3 @@ This work is heavily based on [matiasdelellis's Nextcloud SSO example](https://g
 
 ![Screenshot 1](screenshots/1.png)      ![Screenshot 1](screenshots/2.png)
 
-Download it from [the releases page](https://github.com/penguin86/nextcloud-maps-client/releases)
-

app/src/main/AndroidManifest.xml

@@ -50,7 +50,17 @@
 
         <activity
             android:name=".activity.detail.GeofavoriteDetailActivity"
-            android:theme="@style/AppTheme"/>
+            android:theme="@style/AppTheme">
+            <!-- standard "geo" scheme -->
+            <intent-filter>
+                <action android:name="android.intent.action.VIEW"/>
+
+                <category android:name="android.intent.category.DEFAULT"/>
+                <category android:name="android.intent.category.BROWSABLE"/>
+
+                <data android:scheme="geo"/>
+            </intent-filter>
+        </activity>
 
         <activity
             android:name=".activity.about.AboutActivity"

app/src/main/java/it/danieleverducci/nextcloudmaps/activity/detail/GeofavoriteDetailActivity.java

@@ -59,6 +59,7 @@ import it.danieleverducci.nextcloudmaps.activity.main.MainActivityViewModel;
 import it.danieleverducci.nextcloudmaps.api.ApiProvider;
 import it.danieleverducci.nextcloudmaps.databinding.ActivityGeofavoriteDetailBinding;
 import it.danieleverducci.nextcloudmaps.model.Geofavorite;
+import it.danieleverducci.nextcloudmaps.utils.GeoUriParser;
 import it.danieleverducci.nextcloudmaps.utils.IntentGenerator;
 import retrofit2.Call;
 import retrofit2.Callback;
@@ -158,8 +159,19 @@ public class GeofavoriteDetailActivity extends AppCompatActivity implements Loca
             mGeofavorite.setDateModified(System.currentTimeMillis() / 1000);
             mViewHolder.hideActions();
 
-            // Precompile location
+            if (getIntent().getData() != null) {
-            getLocation();
+                // Opened by external generic intent: parse URI
+                try {
+                    double[] coords = GeoUriParser.parseUri(getIntent().getData());
+                    mGeofavorite.setLat(coords[0]);
+                    mGeofavorite.setLng(coords[1]);
+                } catch (IllegalArgumentException e) {
+                    Toast.makeText(this, R.string.error_unsupported_uri, Toast.LENGTH_SHORT).show();
+                }
+            } else {
+                // Precompile location with current one
+                getLocation();
+            }
         }
 
         mViewHolder.updateView(mGeofavorite);

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

@@ -0,0 +1,21 @@
+package it.danieleverducci.nextcloudmaps.utils;
+
+import android.net.Uri;
+
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+import it.danieleverducci.nextcloudmaps.model.Geofavorite;
+
+public class GeoUriParser {
+    private static final Pattern PATTERN_GEO = Pattern.compile("geo:[\\d.]+,[\\d.]+");
+
+    public static double[] parseUri(Uri uri) throws IllegalArgumentException {
+        Matcher m = PATTERN_GEO.matcher(uri.getPath());
+        if (m.find()) {
+            return new double[]{0, 0};
+        } else {
+            throw new IllegalArgumentException("unable to parse uri");
+        }
+    }
+}

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

@@ -58,6 +58,7 @@
     <string name="location_permission_required">Location permission is required to create a geofavorite.</string>
     <string name="confirm">Save</string>
     <string name="error_saving_geofavorite">Unable to save geofavorite</string>
+    <string name="error_unsupported_uri">Unable to obtain coordinates from shared data</string>
     <string name="geofavorite_saved">Geofavorite saved</string>
     <string name="incomplete_geofavorite">Incomplete geofavorite: Name and category are mandatory</string>