Add general about text

app/build.gradle

@@ -54,7 +54,7 @@ task generateAboutStrings {
                 xml.item(item["link"])
             }
         }
-        xml.string(name:"autostring_about_license_title", "License under ${licenseTitle}")
+        xml.string(name:"autostring_about_license_title", "Licensed under ${licenseTitle}")
         xml.string(name:"autostring_about_license_text", licenseText)
     }
 

app/src/main/java/eu/pkgsoftware/babybuddywidgets/AboutFragment.java

@@ -5,6 +5,7 @@
 import android.media.Image;
 import android.os.Bundle;
 import android.text.SpannableString;
+import android.text.SpannableStringBuilder;
 import android.text.Spanned;
 import android.text.TextPaint;
 import android.text.method.LinkMovementMethod;
@@ -19,7 +20,11 @@
 
 import com.squareup.phrase.Phrase;
 
+import org.w3c.dom.Text;
+
 import java.util.ArrayList;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
 
 import androidx.core.content.ContextCompat;
 import androidx.core.content.res.ResourcesCompat;
@@ -42,16 +47,92 @@ public IconData(String icons, String title, String link) {
         }
     }
 
+    private class ClickableLinkSpan extends ClickableSpan {
+        private String url;
+
+        public ClickableLinkSpan(String url) {
+            this.url = url;
+        }
+
+        @Override
+        public void onClick(@NonNull View view) {
+            showUrlInBrowser(url);
+        }
+
+        @Override
+        public void updateDrawState(@NonNull TextPaint ds) {
+            ds.setUnderlineText(true);
+            ds.setColor(Color.BLUE);
+        }
+    }
+
+    private AboutFragmentBinding binding = null;
+
     private int dpToPx(float dp) {
         return (int) (getContext().getResources().getDisplayMetrics().density * dp + 0.5f);
     }
 
+    private class Range {
+        public int start, end;
+        public Range(int start, int end) {
+            this.start = start;
+            this.end = end;
+        }
+    }
+
+    private static Pattern HREF_DETECTOR_PATTERN = Pattern.compile("<a .*href=[\"']([^\"]+)[\"'][^>]*>([^<]*)</a>");
+
+    private void filterLinksFromTextFields(ViewGroup root) {
+        for (int i = 0; i < root.getChildCount(); i++) {
+            View v = root.getChildAt(i);
+            if (!(v instanceof TextView)) {
+                continue;
+            }
+
+            TextView tv = (TextView) v;
+
+            String orgText = tv.getText().toString();
+            System.out.println("orgText: " + orgText);
+            Matcher matcher = HREF_DETECTOR_PATTERN.matcher(orgText);
+
+            SpannableStringBuilder builder = null;
+            int prevMatchEnd = 0;
+            while (matcher.find()) {
+                if (builder == null) {
+                    builder = new SpannableStringBuilder();
+                }
+
+                builder.append(orgText.substring(prevMatchEnd, matcher.start()));
+
+                String linkUrl = matcher.group(1);
+                String linkText = matcher.group(2);
+                int startSpanIndex = builder.length();
+                builder.append(linkText);
+                builder.setSpan(
+                    new ClickableLinkSpan(linkUrl),
+                    startSpanIndex,
+                    builder.length(),
+                    Spanned.SPAN_EXCLUSIVE_EXCLUSIVE
+                );
+
+                prevMatchEnd = matcher.end();
+            }
+
+            if (builder != null) {
+                builder.append(orgText.substring(prevMatchEnd));
+
+                tv.setMovementMethod(LinkMovementMethod.getInstance());
+                tv.setText(builder);
+            }
+        }
+    }
+
     @Override
     public View onCreateView(
             @NonNull LayoutInflater inflater,
             @Nullable ViewGroup container,
             @Nullable Bundle savedInstanceState) {
-        AboutFragmentBinding binding = AboutFragmentBinding.inflate(inflater);
+        binding = AboutFragmentBinding.inflate(inflater);
 
         String[] aboutIconLists = getResources().getStringArray(R.array.autostring_about_icon_iconlists);
         String[] aboutIconTitles = getResources().getStringArray(R.array.autostring_about_icon_titles);
@@ -124,6 +205,8 @@ public void updateDrawState(@NonNull TextPaint ds) {
             binding.root.addView(group);
         }
 
+        filterLinksFromTextFields(binding.root);
+
         return binding.root;
     }
 

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

@@ -8,6 +8,11 @@
     android:padding="8dp"
     tools:context=".AboutFragment">
 
+    <TextView
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:text="@string/about_text" />
+
     <TextView
         android:id="@+id/aboutLicenseTitle"
         android:layout_width="match_parent"

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

@@ -12,6 +12,6 @@
     <item>https://www.flaticon.com/free-icons/poop</item>
     <item>https://www.flaticon.com/free-icons/humidity</item>
   </string-array>
-  <string name='autostring_about_license_title'>License under The MIT License (MIT)</string>
+  <string name='autostring_about_license_title'>Licensed under The MIT License (MIT)</string>
   <string name='autostring_about_license_text'>Copyright © 2022 Paul Konstantin Gerke (and contributors)\n\nPermission is hereby granted, free of charge, to any person obtaining a copy of this software and  associated documentation files (the “Software”), to deal in the Software without restriction,  including without limitation the rights to use, copy, modify, merge, publish, distribute,  sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is  furnished to do so, subject to the following conditions:\n\nThe above copyright notice and this permission notice shall be included in all copies or  substantial portions of the Software.\n\nTHE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT  NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND  NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,  DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT  OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.</string>
 </resources>

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

@@ -21,6 +21,8 @@
 
     <string name="app_name">Baby Buddy</string>
 
+    <string name="about_text">This Android application is Open Source software licensed under the MIT License (see below).\n\nThe source code of the application is available at &lt;a href=\'https://github.com/MrApplejuice/BabyBuddyAndroid/\'&gt;https://github.com/MrApplejuice/BabyBuddyAndroid/&lt;/a&gt;.\n\nThe application uses third-party media under attribution licenes listed below.</string>
+
     <!-- Strings used for fragments for navigation -->
     <string name="action_settings">Settings</string>
     <string name="first_fragment_label">Login to Baby Buddy</string>