0.0.1

GCMessageKit.podspec

@@ -14,8 +14,6 @@ Pod::Spec.new do |s|
 
   s.dependency 'YYWebImage'
   s.dependency 'YYText'
-  s.dependency 'AMap2DMap'
-  s.dependency 'AMapSearch'
   s.dependency 'YAssetsPicker'
   s.dependency 'SVProgressHUD'
 

GCMessageKit/Category/MKMapView+Zoomlevel.h

@@ -0,0 +1,16 @@
+//
+//  MKMapView+Zoomlevel.h
+//  GCMessageKitDemo
+//
+//  Created by BestKai on 16/6/20.
+//  Copyright © 2016年 BestKai. All rights reserved.
+//
+
+#import <MapKit/MapKit.h>
+
+@interface MKMapView (Zoomlevel)
+
+- (void)setCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
+                  zoomLevel:(NSUInteger)zoomLevel
+                   animated:(BOOL)animated;
+@end

GCMessageKit/Category/MKMapView+Zoomlevel.m

@@ -0,0 +1,96 @@
+//
+//  MKMapView+Zoomlevel.m
+//  GCMessageKitDemo
+//
+//  Created by BestKai on 16/6/20.
+//  Copyright © 2016年 BestKai. All rights reserved.
+//
+
+#import "MKMapView+Zoomlevel.h"
+
+#define MERCATOR_OFFSET 268435456
+#define MERCATOR_RADIUS 85445659.44705395
+
+@implementation MKMapView (Zoomlevel)
+
+#pragma mark -
+#pragma mark Map conversion methods
+
+- (double)longitudeToPixelSpaceX:(double)longitude
+{
+    return round(MERCATOR_OFFSET + MERCATOR_RADIUS * longitude * M_PI / 180.0);
+}
+
+- (double)latitudeToPixelSpaceY:(double)latitude
+{
+    return round(MERCATOR_OFFSET - MERCATOR_RADIUS * logf((1 + sinf(latitude * M_PI / 180.0)) / (1 - sinf(latitude * M_PI / 180.0))) / 2.0);
+}
+
+- (double)pixelSpaceXToLongitude:(double)pixelX
+{
+    return ((round(pixelX) - MERCATOR_OFFSET) / MERCATOR_RADIUS) * 180.0 / M_PI;
+}
+
+- (double)pixelSpaceYToLatitude:(double)pixelY
+{
+    return (M_PI / 2.0 - 2.0 * atan(exp((round(pixelY) - MERCATOR_OFFSET) / MERCATOR_RADIUS))) * 180.0 / M_PI;
+}
+
+#pragma mark -
+#pragma mark Helper methods
+
+- (MKCoordinateSpan)coordinateSpanWithMapView:(MKMapView *)mapView
+                             centerCoordinate:(CLLocationCoordinate2D)centerCoordinate
+                                 andZoomLevel:(NSUInteger)zoomLevel
+{
+    // convert center coordiate to pixel space
+    double centerPixelX = [self longitudeToPixelSpaceX:centerCoordinate.longitude];
+    double centerPixelY = [self latitudeToPixelSpaceY:centerCoordinate.latitude];
+
+    // determine the scale value from the zoom level
+    NSInteger zoomExponent = 20 - zoomLevel;
+    double zoomScale = pow(2, zoomExponent);
+
+    // scale the map’s size in pixel space
+    CGSize mapSizeInPixels = mapView.bounds.size;
+    double scaledMapWidth = mapSizeInPixels.width * zoomScale;
+    double scaledMapHeight = mapSizeInPixels.height * zoomScale;
+
+    // figure out the position of the top-left pixel
+    double topLeftPixelX = centerPixelX - (scaledMapWidth / 2);
+    double topLeftPixelY = centerPixelY - (scaledMapHeight / 2);
+
+    // find delta between left and right longitudes
+    CLLocationDegrees minLng = [self pixelSpaceXToLongitude:topLeftPixelX];
+    CLLocationDegrees maxLng = [self pixelSpaceXToLongitude:topLeftPixelX + scaledMapWidth];
+    CLLocationDegrees longitudeDelta = maxLng - minLng;
+
+    // find delta between top and bottom latitudes
+    CLLocationDegrees minLat = [self pixelSpaceYToLatitude:topLeftPixelY];
+    CLLocationDegrees maxLat = [self pixelSpaceYToLatitude:topLeftPixelY + scaledMapHeight];
+    CLLocationDegrees latitudeDelta = -1 * (maxLat - minLat);
+
+    // create and return the lat/lng span
+    MKCoordinateSpan span = MKCoordinateSpanMake(latitudeDelta, longitudeDelta);
+    return span;
+}
+
+#pragma mark -
+#pragma mark Public methods
+
+- (void)setCenterCoordinate:(CLLocationCoordinate2D)centerCoordinate
+                  zoomLevel:(NSUInteger)zoomLevel
+                   animated:(BOOL)animated
+{
+    // clamp large numbers to 28
+    zoomLevel = MIN(zoomLevel, 28);
+
+    // use the zoom level to compute the region
+    MKCoordinateSpan span = [self coordinateSpanWithMapView:self centerCoordinate:centerCoordinate andZoomLevel:zoomLevel];
+    MKCoordinateRegion region = MKCoordinateRegionMake(centerCoordinate, span);
+
+    // set the region like normal
+    [self setRegion:region animated:animated];
+}
+
+@end

GCMessageKit/Controller/GCMessageTableViewController.h

@@ -20,7 +20,6 @@
 #import "GCOtherMessageInputView.h"
 #import "GCTakePhotographHelper.h"
 #import "YImagePickerNavController.h"
-#import "GCDisplayLocationViewController.h"
 
 #import "GCVoiceRecordHelper.h"
 #import "GCAddressBookHelper.h"