From f67ceec8c24d58dc2c976db8b1c2d0a3e8a68efc Mon Sep 17 00:00:00 2001
From: Jason Wray <jason@kulturny.com>
Date: Wed, 2 Dec 2015 17:36:09 -0500
Subject: [PATCH] [ios] fix CoreTelephony crash (by removing it) Fix #3112, ref
 #2581

---
 CHANGELOG.md                   |  2 ++
 docs/BUILD_IOS_OSX.md          |  1 -
 platform/ios/MGLMapboxEvents.m | 45 ----------------------------------
 3 files changed, 2 insertions(+), 46 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 7cf25bee4fd..5d549c3bdcc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -23,6 +23,8 @@ Known issues:
 
 ## iOS master
 
+- Fixed CoreTelephony.framework crash. ([#3170](https://github.com/mapbox/mapbox-gl-native/pull/3170))
+- `MGLMapView` methods that alter the viewport now accept optional completion handlers. ([#3090](https://github.com/mapbox/mapbox-gl-native/pull/3090))
 - Fixed an issue preventing the compass from responding to taps after the compass is moved programmatically. ([#3117](https://github.com/mapbox/mapbox-gl-native/pull/3117))
 
 ## iOS 3.0.0
diff --git a/docs/BUILD_IOS_OSX.md b/docs/BUILD_IOS_OSX.md
index 6a430252017..b862fdf5f71 100644
--- a/docs/BUILD_IOS_OSX.md
+++ b/docs/BUILD_IOS_OSX.md
@@ -83,7 +83,6 @@ Currently, until [#1437](https://github.com/mapbox/mapbox-gl-native/issues/1437)
    - `libc++.dylib`
    - `libsqlite3.dylib`
    - `libz.dylib`
-   - `CoreTelephony.framework` (optional, telemetry-only)
 
 1. Add `-ObjC` to your target's "Other Linker Flags" build setting (`OTHER_LDFLAGS`).
 
diff --git a/platform/ios/MGLMapboxEvents.m b/platform/ios/MGLMapboxEvents.m
index 239ac7ece2c..7f8df610956 100644
--- a/platform/ios/MGLMapboxEvents.m
+++ b/platform/ios/MGLMapboxEvents.m
@@ -75,23 +75,6 @@ - (instancetype)init {
         } else {
             _scale = [UIScreen mainScreen].scale;
         }
-
-#if !TARGET_OS_SIMULATOR
-        // Collect cellular carrier data if CoreTelephony is linked
-        Class MGLTelephony = NSClassFromString(@"CTTelephonyNetworkInfo");
-        if (MGLTelephony) {
-            id telephonyNetworkInfo = [[MGLTelephony alloc] init];
-            SEL subscriberCellularProviderSelector = NSSelectorFromString(@"subscriberCellularProvider");
-            id carrierVendor = [telephonyNetworkInfo performSelector:subscriberCellularProviderSelector];
-
-            // Guard against simulator, iPod Touch, etc.
-            if (carrierVendor) {
-                SEL carrierNameSelector = NSSelectorFromString(@"carrierName");
-                NSString *carrierName = [carrierVendor performSelector:carrierNameSelector];
-                _carrier = carrierName;
-            }
-        }
-#endif
     }
     return self;
 }
@@ -510,13 +493,6 @@ - (void) pushEvent:(NSString *)event withAttributes:(MGLMapboxEventAttributes *)
         [evt setValue:@((int)(100 * [UIDevice currentDevice].batteryLevel)) forKey:@"batteryLevel"];
         [evt setValue:@(strongSelf.data.scale) forKey:@"resolution"];
 
-        if (strongSelf.data.carrier) {
-            [evt setValue:strongSelf.data.carrier forKey:@"carrier"];
-
-            NSString *cell = [strongSelf currentCellularNetworkConnectionType];
-            [evt setObject:(cell ? cell : [NSNull null]) forKey:@"cellularNetworkType"];
-        }
-
         MGLReachability *reachability = [MGLReachability reachabilityForLocalWiFi];
         [evt setValue:([reachability isReachableViaWiFi] ? @YES : @NO) forKey:@"wifi"];
         
@@ -725,27 +701,6 @@ - (NSInteger) contentSizeScale {
     return result;
 }
 
-// Can be called from any thread.
-//
-- (NSString *) currentCellularNetworkConnectionType {
-    NSString *radioTech;
-
-    Class CTTelephonyNetworkInfo = NSClassFromString(@"CTTelephonyNetworkInfo");
-    if (CTTelephonyNetworkInfo) {
-        id telephonyNetworkInfo = [[CTTelephonyNetworkInfo alloc] init];
-        SEL currentRadioAccessTechnologySelector = NSSelectorFromString(@"currentRadioAccessTechnology");
-        radioTech = ((id (*)(id, SEL))[telephonyNetworkInfo methodForSelector:currentRadioAccessTechnologySelector])(telephonyNetworkInfo, currentRadioAccessTechnologySelector);
-    }
-
-    if (radioTech == nil) {
-        return nil;
-    } else if ([radioTech hasPrefix:@"CTRadioAccessTechnology"]) {
-        return [radioTech substringFromIndex:23];
-    } else {
-        return @"Unknown";
-    }
-}
-
 // Can be called from any thread.
 //
 + (BOOL) checkPushEnabled {