Add in-app privacy policy link to comply with Google Play policies

Also added Setup Guide and Troubleshooting Guide links too.

app/src/main/java/com/limelight/preferences/StreamSettings.java

@@ -232,6 +232,13 @@ public class StreamSettings extends Activity {
                 category.removePreference(findPreference("checkbox_enable_pip"));
             }
 
+            // Fire TV apps are not allowed to use WebViews or browsers, so hide the Help category
+            if (getActivity().getPackageManager().hasSystemFeature("amazon.hardware.fire_tv")) {
+                PreferenceCategory category =
+                        (PreferenceCategory) findPreference("category_help");
+                screen.removePreference(category);
+            }
+
             // Remove the vibration options if the device can't vibrate
             if (!((Vibrator)getActivity().getSystemService(Context.VIBRATOR_SERVICE)).hasVibrator()) {
                 PreferenceCategory category =

app/src/main/java/com/limelight/preferences/WebLauncherPreference.java

@@ -0,0 +1,45 @@
+package com.limelight.preferences;
+
+import android.annotation.TargetApi;
+import android.content.Context;
+import android.os.Build;
+import android.preference.Preference;
+import android.util.AttributeSet;
+
+import com.limelight.utils.HelpLauncher;
+
+public class WebLauncherPreference extends Preference {
+    private String url;
+
+    public WebLauncherPreference(Context context, AttributeSet attrs, int defStyleAttr) {
+        super(context, attrs, defStyleAttr);
+        initialize(attrs);
+    }
+
+    public WebLauncherPreference(Context context, AttributeSet attrs) {
+        super(context, attrs);
+        initialize(attrs);
+    }
+
+    @TargetApi(Build.VERSION_CODES.LOLLIPOP)
+    public WebLauncherPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {
+        super(context, attrs, defStyleAttr, defStyleRes);
+        initialize(attrs);
+    }
+
+    private void initialize(AttributeSet attrs) {
+        if (attrs == null) {
+            throw new IllegalStateException("WebLauncherPreference must have attributes!");
+        }
+
+        url = attrs.getAttributeValue(null, "url");
+        if (url == null) {
+            throw new IllegalStateException("WebLauncherPreference must have 'url' attribute!");
+        }
+    }
+
+    @Override
+    public void onClick() {
+        HelpLauncher.launchUrl(getContext(), url);
+    }
+}

app/src/main/java/com/limelight/utils/HelpLauncher.java

@@ -8,7 +8,7 @@ import android.net.Uri;
 import com.limelight.HelpActivity;
 
 public class HelpLauncher {
-    private static void launchUrl(Context context, String url) {
+    public static void launchUrl(Context context, String url) {
         // Try to launch the default browser
         try {
             Intent i = new Intent(Intent.ACTION_VIEW);

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

@@ -227,6 +227,14 @@
     <string name="title_enable_post_stream_toast">Show latency message after streaming</string>
     <string name="summary_enable_post_stream_toast">Display a latency information message after the stream ends</string>
 
+    <string name="category_help">Help</string>
+    <string name="title_setup_guide">Setup guide</string>
+    <string name="summary_setup_guide">View instructions on how to set up your gaming PC for streaming</string>
+    <string name="title_troubleshooting">Troubleshooting guide</string>
+    <string name="summary_troubleshooting">View tips for diagnosing and fixing common streaming issues</string>
+    <string name="title_privacy_policy">Privacy policy</string>
+    <string name="summary_privacy_policy">View Moonlight\'s privacy policy</string>
+
     <!-- Array strings -->
     <string name="resolution_360p">360p</string>
     <string name="resolution_480p">480p</string>

app/src/main/res/xml/preferences.xml

@@ -206,4 +206,19 @@
             android:summary="@string/summary_enable_post_stream_toast"
             android:defaultValue="false"/>
     </PreferenceCategory>
+    <PreferenceCategory android:title="@string/category_help"
+        android:key="category_help">
+        <com.limelight.preferences.WebLauncherPreference
+            android:title="@string/title_setup_guide"
+            android:summary="@string/summary_setup_guide"
+            url="https://github.com/moonlight-stream/moonlight-docs/wiki/Setup-Guide"/>
+        <com.limelight.preferences.WebLauncherPreference
+            android:title="@string/title_troubleshooting"
+            android:summary="@string/summary_troubleshooting"
+            url="https://github.com/moonlight-stream/moonlight-docs/wiki/Troubleshooting"/>
+        <com.limelight.preferences.WebLauncherPreference
+            android:title="@string/title_privacy_policy"
+            android:summary="@string/summary_privacy_policy"
+            url="https://moonlight-stream.org/privacy.html"/>
+    </PreferenceCategory>
 </PreferenceScreen>