Add more info in settings->about. Fix title mismatch in settings.

app/src/main/java/Settings/AboutPreferenceFragment.java

@@ -1,11 +1,18 @@
 package Settings;
 
 
+import android.app.Activity;
+import android.content.Intent;
+import android.net.Uri;
 import android.os.Bundle;
+import android.widget.Toast;
 
+import androidx.preference.Preference;
 import androidx.preference.PreferenceFragmentCompat;
 
+import ml.docilealligator.infinityforreddit.LinkResolverActivity;
 import ml.docilealligator.infinityforreddit.R;
+import ml.docilealligator.infinityforreddit.SharedPreferencesUtils;
 
 /**
  * A simple {@link PreferenceFragmentCompat} subclass.
@@ -15,5 +22,60 @@ public class AboutPreferenceFragment extends PreferenceFragmentCompat {
     @Override
     public void onCreatePreferences(Bundle savedInstanceState, String rootKey) {
         setPreferencesFromResource(R.xml.about_preferences, rootKey);
+
+        Preference openSourcePreference = findPreference(SharedPreferencesUtils.OPEN_SOURCE_KEY);
+        Preference reviewPreference = findPreference(SharedPreferencesUtils.RATE_KEY);
+        Preference emailPreference = findPreference(SharedPreferencesUtils.EMAIL_KEY);
+        Preference redditAccountPreference = findPreference(SharedPreferencesUtils.REDDIT_ACCOUNT_KEY);
+
+        Activity activity = getActivity();
+
+        if(activity != null) {
+            if(openSourcePreference != null) {
+                openSourcePreference.setOnPreferenceClickListener(preference -> {
+                    Intent intent = new Intent(activity, LinkResolverActivity.class);
+                    intent.setData(Uri.parse("https://github.com/Docile-Alligator/Infinity-For-Reddit"));
+                    startActivity(intent);
+                    return true;
+                });
+            }
+
+            if(reviewPreference != null) {
+                reviewPreference.setOnPreferenceClickListener(preference -> {
+                    Intent playStoreIntent = new Intent(Intent.ACTION_VIEW);
+                    playStoreIntent.setData(Uri.parse("market://details?id=ml.docilealligator.infinityforreddit"));
+                    if(playStoreIntent.resolveActivity(activity.getPackageManager()) != null) {
+                        activity.startActivity(playStoreIntent);
+                    } else {
+                        Intent intent = new Intent(activity, LinkResolverActivity.class);
+                        intent.setData(Uri.parse("https://play.google.com/store/apps/details?id=ml.docilealligator.infinityforreddit"));
+                        startActivity(intent);
+                    }
+                    return true;
+                });
+            }
+
+            if(emailPreference != null) {
+                emailPreference.setOnPreferenceClickListener(preference -> {
+                    Intent intent = new Intent(Intent.ACTION_SENDTO);
+                    intent.setData(Uri.parse("mailto:docilealligator.app@gmail.com"));
+                    if(intent.resolveActivity(activity.getPackageManager()) != null) {
+                        startActivity(intent);
+                    } else {
+                        Toast.makeText(activity, R.string.no_email_client, Toast.LENGTH_SHORT).show();
+                    }
+                    return true;
+                });
+            }
+
+            if(redditAccountPreference != null) {
+                redditAccountPreference.setOnPreferenceClickListener(preference -> {
+                    Intent intent = new Intent(activity, LinkResolverActivity.class);
+                    intent.setData(Uri.parse("https://www.reddit.com/user/Hostilenemy"));
+                    startActivity(intent);
+                    return true;
+                });
+            }
+        }
     }
 }

app/src/main/java/ml/docilealligator/infinityforreddit/SettingsActivity.java

@@ -19,6 +19,7 @@ import androidx.preference.PreferenceFragmentCompat;
 
 import javax.inject.Inject;
 
+import Settings.AboutPreferenceFragment;
 import Settings.MainPreferenceFragment;
 import butterknife.BindView;
 import butterknife.ButterKnife;
@@ -86,6 +87,8 @@ public class SettingsActivity extends AppCompatActivity implements
         getSupportFragmentManager().addOnBackStackChangedListener(() -> {
             if (getSupportFragmentManager().getBackStackEntryCount() == 0) {
                 setTitle(R.string.settings_activity_label);
+            } else if (getSupportFragmentManager().findFragmentById(R.id.frame_layout_settings_activity) instanceof AboutPreferenceFragment) {
+                setTitle(R.string.settings_about_master_title);
             }
         });
 

app/src/main/java/ml/docilealligator/infinityforreddit/SharedPreferencesUtils.java

@@ -17,4 +17,8 @@ public class SharedPreferencesUtils {
     public static final String CROSSPOST_ICON_KEY = "crosspost_icon";
     public static final String THUMBTACK_ICON_KEY = "thumbtack_icon";
     public static final String MATERIAL_ICONS_KEY = "material_icons";
+    public static final String OPEN_SOURCE_KEY = "open_source";
+    public static final String RATE_KEY = "rate";
+    public static final String EMAIL_KEY = "email";
+    public static final String REDDIT_ACCOUNT_KEY = "reddit_account";
 }

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

@@ -288,6 +288,14 @@
     <string name="settings_credits_thumbtack_icon_title">Thumbtack Icon</string>
     <string name="settings_credits_thumbtack_icon_summary">Icon made by Freepik from www.flaticon.com</string>
     <string name="settings_credits_material_icons_title">Material Icons</string>
+    <string name="settings_open_source_title">Open Source</string>
+    <string name="settings_open_source_summary">Star it on Github if you like this app</string>
+    <string name="settings_rate_title">Rate in Google Play</string>
+    <string name="settings_rate_summary">Give me a 5-star rating and I will be really happy</string>
+    <string name="settings_email_title">Email</string>
+    <string name="settings_email_summary">docilealligator.app@gmail.com</string>
+    <string name="settings_reddit_account_title">Reddit Account</string>
+    <string name="settings_reddit_account_summary">u/Hostilenemy</string>
 
     <string name="no_link_available">Cannot get the link</string>
 
@@ -304,4 +312,6 @@
     <string name="cannot_handle_intent">Could not handle the share request</string>
 
     <string name="share">Share</string>
+
+    <string name="no_email_client">No Email client found</string>
 </resources>

app/src/main/res/xml/about_preferences.xml

@@ -10,4 +10,24 @@
         app:title="@string/settings_credits_master_title"
         app:fragment="Settings.CreditsPreferenceFragment" />
 
+    <Preference
+        android:key="open_source"
+        app:title="@string/settings_open_source_title"
+        app:summary="@string/settings_open_source_summary" />
+
+    <Preference
+        android:key="rate"
+        app:title="@string/settings_rate_title"
+        app:summary="@string/settings_rate_summary" />
+
+    <Preference
+        android:key="email"
+        app:title="@string/settings_email_title"
+        app:summary="@string/settings_email_summary" />
+
+    <Preference
+        android:key="reddit_account"
+        app:title="@string/settings_reddit_account_title"
+        app:summary="@string/settings_reddit_account_summary" />
+
 </PreferenceScreen>