From 4a4f2fb5d42b915270aff40ca3e291c21bd3c614 Mon Sep 17 00:00:00 2001
From: Sylvain Berfini <sylvain.berfini@linphone.org>
Date: Tue, 7 May 2013 12:23:20 +0200
Subject: [PATCH] Hide navigation bar (if exists) when phone is close to ear
 while in call on Android ICS+ device

---
 src/org/linphone/LinphoneManager.java            |  3 +++
 .../linphone/compatibility/ApiFourteenPlus.java  | 10 ++++++++++
 .../linphone/compatibility/Compatibility.java    | 16 +++++++++++++++-
 3 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/src/org/linphone/LinphoneManager.java b/src/org/linphone/LinphoneManager.java
index 4b9a037e2..27f6f6197 100644
--- a/src/org/linphone/LinphoneManager.java
+++ b/src/org/linphone/LinphoneManager.java
@@ -49,6 +49,7 @@ import org.linphone.LinphoneSimpleListener.LinphoneOnAudioChangedListener.AudioS
 import org.linphone.LinphoneSimpleListener.LinphoneOnDTMFReceivedListener;
 import org.linphone.LinphoneSimpleListener.LinphoneOnMessageReceivedListener;
 import org.linphone.LinphoneSimpleListener.LinphoneServiceListener;
+import org.linphone.compatibility.Compatibility;
 import org.linphone.core.CallDirection;
 import org.linphone.core.LinphoneAddress;
 import org.linphone.core.LinphoneAuthInfo;
@@ -1507,9 +1508,11 @@ public final class LinphoneManager implements LinphoneCoreListener {
 		if (nearby) {
             params.screenBrightness = 0.1f;
             view.setVisibility(View.INVISIBLE);
+            Compatibility.hideNavigationBar(activity);
 		} else  {
 			params.screenBrightness = WindowManager.LayoutParams.BRIGHTNESS_OVERRIDE_NONE;
             view.setVisibility(View.VISIBLE);
+            Compatibility.showNavigationBar(activity);
 		}
         window.setAttributes(params);
 	}
diff --git a/src/org/linphone/compatibility/ApiFourteenPlus.java b/src/org/linphone/compatibility/ApiFourteenPlus.java
index 04cd075d2..1c65fc8f2 100644
--- a/src/org/linphone/compatibility/ApiFourteenPlus.java
+++ b/src/org/linphone/compatibility/ApiFourteenPlus.java
@@ -1,8 +1,10 @@
 package org.linphone.compatibility;
 
 import android.annotation.TargetApi;
+import android.app.Activity;
 import android.preference.Preference;
 import android.preference.TwoStatePreference;
+import android.view.View;
 
 /*
 ApiFourteenPlus.java
@@ -35,4 +37,12 @@ public class ApiFourteenPlus {
 	public static boolean isPreferenceChecked(Preference preference) {
 		return ((TwoStatePreference) preference).isChecked();
 	}
+	
+	public static void hideNavigationBar(Activity activity) {
+        activity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_HIDE_NAVIGATION);
+	}
+	
+	public static void showNavigationBar(Activity activity) {
+        activity.getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_VISIBLE);
+	}
 }
diff --git a/src/org/linphone/compatibility/Compatibility.java b/src/org/linphone/compatibility/Compatibility.java
index 9d5f4f416..35f015b76 100644
--- a/src/org/linphone/compatibility/Compatibility.java
+++ b/src/org/linphone/compatibility/Compatibility.java
@@ -248,10 +248,24 @@ public class Compatibility {
 	
 
 	public static void removeGlobalLayoutListener(ViewTreeObserver viewTreeObserver, OnGlobalLayoutListener keyboardListener) {
-		if (Version.sdkAboveOrEqual(16)) {
+		if (Version.sdkAboveOrEqual(Version.API16_JELLY_BEAN_41)) {
 			ApiSixteenPlus.removeGlobalLayoutListener(viewTreeObserver, keyboardListener);
 		} else {
 			ApiFivePlus.removeGlobalLayoutListener(viewTreeObserver, keyboardListener);
 		}
 	}
+	
+	public static void hideNavigationBar(Activity activity)
+	{
+		if (Version.sdkAboveOrEqual(Version.API14_ICE_CREAM_SANDWICH_40)) {
+			ApiFourteenPlus.hideNavigationBar(activity);
+		}
+	}
+	
+	public static void showNavigationBar(Activity activity)
+	{
+		if (Version.sdkAboveOrEqual(Version.API14_ICE_CREAM_SANDWICH_40)) {
+			ApiFourteenPlus.showNavigationBar(activity);
+		}
+	}
 }