百度SDK实战Demo(获取实时定位状态)

地图的功能几乎每个App都会用到. 特别是有定位功能的app,从开发到现在,地图功能基本是我常用到的.我就抽空总结一下近 3年多的地图使用经验.

1:关于第三方SDK无法获取定位 状态改变的问题

        关于这个SDK的地图的坑,我至今都没有找到直接的解决方法, 而是采用 规避的方法解决这个问题. 由于我以前公司项目 同时 用到了百度SDK,高德导航(SDK),谷歌SDK.更别说 能拿到定位状态改变了. 有时人为的关掉定位功能.更无法判断.

我的解决方法是 用 ios 原生的 定位功能. 理由是第三方SDK都是在原生的基础上封装好的.地图的集成我就不多说了.上代码.

第1步:导入头文件和 签协议

第2步:初始化 

 //!定位管理

@property (nonatomic, strong) CLLocationManager *locationManager;

#pragma mark - ======================

- (CLLocationManager *)locationManager

{

if (!_locationManager)

{

_locationManager = [[CLLocationManager alloc] init];

_locationManager.delegate = self;

// 设置定位精度

_locationManager.desiredAccuracy = kCLLocationAccuracyBest;

// 定位频率,每隔多少米定位一次

_locationManager.distanceFilter = kCLDistanceFilterNone;

}

return _locationManager;

}

再视图加载完成这里 调用这句话.去用懒加载方式初始化 原生定位 管理器

接下来 当你运行时,这个界面出现时,会走 原生的代理协议方法

在定位成功前会做一个判断 实时定位状态的协议方法

- (void)locationManager:(CLLocationManager *)manager didChangeAuthorizationStatus:(CLAuthorizationStatus)status

{

if(status == kCLAuthorizationStatusAuthorizedWhenInUse){

XYLLog(@"使用");

[self.locationManager startUpdatingLocation];

}else if(status == kCLAuthorizationStatusDenied){

XYLLog(@"不使用");

[self.locationManager requestWhenInUseAuthorization];

}

}

这个是手机设备采集到的 GPS做标,如果项目集成了 百度SDK 建议进行地图纠偏处理

- (void)locationManager:(CLLocationManager *)manager didFailWithError:(NSError *)error{

XYLLog(@"定位失败");

}

当定位成功后,那到 纠偏后的经纬度, 我们要填加 定位点,显示出来. 原生的定位点 没有第三方的样式多.只有自己自定义

我上代码: 

继承 BMKAnnotationView ,这是自定义的, m 文件的实现

//  XYLFenceMapAnnotationView.m//  XYLBaiduMap2017////  Created by 夏玉林 on 17/2/16.//  Copyright © 2017年 夏玉林. All rights reserved.//#import "XYLFenceMapAnnotationView.h"@interface XYLFenceMapAnnotationView()@property (nonatomic, strong) CALayer *colorDotLayer;@property (nonatomic, strong) CALayer *outerDotLayer;@end@implementation XYLFenceMapAnnotationView//!外圈- (CALayer*)outerDotLayer {    if(!_outerDotLayer) {        _outerDotLayer = [CALayer layer];        _outerDotLayer.bounds = self.bounds;        _outerDotLayer.contents = (id)[self circleImageWithColor:self.outerColor height:self.bounds.size.height].CGImage;        _outerDotLayer.position = CGPointMake(self.bounds.size.width/2, self.bounds.size.height/2);        _outerDotLayer.contentsGravity = kCAGravityCenter;        _outerDotLayer.contentsScale = [UIScreen mainScreen].scale;        _outerDotLayer.shadowColor = [UIColor blackColor].CGColor;        _outerDotLayer.shadowOffset = CGSizeMake(0, 2);        _outerDotLayer.shadowRadius = 3;        _outerDotLayer.shadowOpacity = 0.3;        _outerDotLayer.shouldRasterize = YES;        _outerDotLayer.rasterizationScale = [UIScreen mainScreen].scale;    }    return _outerDotLayer;}//!内圈- (CALayer*)colorDotLayer{    if(!_colorDotLayer)    {        _colorDotLayer = [CALayer layer];        CGFloat width = self.bounds.size.width-6;        _colorDotLayer.bounds = CGRectMake(0, 0, width, width);        _colorDotLayer.allowsGroupOpacity = YES;        _colorDotLayer.backgroundColor = self.annotationColor.CGColor;        _colorDotLayer.cornerRadius = width/2;        _colorDotLayer.position = CGPointMake(self.bounds.size.width/2, self.bounds.size.height/2);                dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^(void) {                        if(self.delayBetweenPulseCycles != INFINITY) {                CAMediaTimingFunction *defaultCurve = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault];                                CAAnimationGroup *animationGroup = [CAAnimationGroup animation];                animationGroup.duration = self.pulseAnimationDuration;                animationGroup.repeatCount = INFINITY;                animationGroup.removedOnCompletion = NO;                animationGroup.autoreverses = YES;                animationGroup.timingFunction = defaultCurve;                animationGroup.speed = 1;                animationGroup.fillMode = kCAFillModeBoth;                                CABasicAnimation *pulseAnimation = [CABasicAnimation animationWithKeyPath:@"transform.scale.xy"];                pulseAnimation.fromValue = @0.8;                pulseAnimation.toValue = @1;                pulseAnimation.duration = self.pulseAnimationDuration;                                CABasicAnimation *opacityAnimation = [CABasicAnimation animationWithKeyPath:@"opacity"];                opacityAnimation.fromValue = @0.8;                opacityAnimation.toValue = @1;                opacityAnimation.duration = self.pulseAnimationDuration;                                animationGroup.animations = @[pulseAnimation, opacityAnimation];                                dispatch_async(dispatch_get_main_queue(), ^(void) {                    [_colorDotLayer addAnimation:animationGroup forKey:@"pulse"];                });            }        });            }    return _colorDotLayer;}#pragma mark - =====================UIView方法====================- (id)initWithAnnotation:(id)annotation reuseIdentifier:(NSString *)reuseIdentifier

{

self = [super initWithAnnotation:annotation reuseIdentifier:reuseIdentifier];

if (self)

{

#pragma mark============在这里修改定位点的 frame===============

self.bounds = CGRectMake(0, 0, 22, 22);

self.pulseAnimationDuration = 0;

self.delayBetweenPulseCycles = 0;

self.annotationColor = [UIColor colorWithRed:0.000 green:0.478 blue:1.000 alpha:1];

self.outerColor = [UIColor whiteColor];

}

return self;

}

- (void)willMoveToSuperview:(UIView *)newSuperview

{

if (newSuperview)

[self reloadLayers];

}

- (void)reloadLayers

{

[_outerDotLayer removeFromSuperlayer];

_outerDotLayer = nil;

[self.layer addSublayer:self.outerDotLayer];

[_colorDotLayer removeFromSuperlayer];

_colorDotLayer = nil;

[self.layer addSublayer:self.colorDotLayer];

}

- (UIImage*)circleImageWithColor:(UIColor*)color height:(float)height {

UIGraphicsBeginImageContextWithOptions(CGSizeMake(height, height), NO, 0);

CGColorSpaceRef colorSpace = CGColorSpaceCreateDeviceRGB();

UIBezierPath* fillPath = [UIBezierPath bezierPathWithOvalInRect:CGRectMake(0, 0, height, height)];

[color setFill];

[fillPath fill];

UIImage *dotImage = UIGraphicsGetImageFromCurrentImageContext();

UIGraphicsEndImageContext();

CGColorSpaceRelease(colorSpace);

return dotImage;

}

里面还有 高级动画的实现

另外 自定义的 大头针 

注意继承 BMKAnnotation

//  XYLPinView.h//  XYLBaiDuMap////  Created by 夏玉林 on 16/12/17.//  Copyright © 2016年 夏玉林. All rights reserved.//#import// 引入地图功能所有的头文件#import//该类为标注点的protocol，提供了标注类的基本信息函数@interface XYLPinView : NSObject/*

*  传入经纬度结合体

*/

- (instancetype)initWithCoordinate:(CLLocationCoordinate2D )coordinate;

@property (nonatomic,assign) CLLocationCoordinate2D coordinate;

//标题

@property (nonatomic,copy)NSString *title;

//副标题

@property (nonatomic,copy)NSString *subtitle;

@end

m 文件

//

//  XYLPinView.m

//  XYLBaiDuMap

//

//  Created by 夏玉林 on 16/12/17.

//  Copyright © 2016年 夏玉林. All rights reserved.

//

#import "XYLPinView.h"

@implementation XYLPinView

/*

*  传入经纬度结合体

*/

- (instancetype)initWithCoordinate:(CLLocationCoordinate2D )coordinate{

self = [super init];

if (self) {

self.coordinate = coordinate;

}

return self;

}

- (CLLocationCoordinate2D)coordinate

{

return _coordinate;

}

@end

 然后 是 调用百度SDK的添加覆盖物api 接口

#pragma mark==========地图的代理方法================- (BMKAnnotationView *)mapView:(BMKMapView *)mapView viewForAnnotation:(id)annotation{

typeof(self) weakSelf = self;

static NSString *identifier = @"userLocation";

//定位点的显示

if ([annotation isKindOfClass:[XYLPinView class]]) {

static NSString *identifier = @"currentLocation";

XYLFenceMapAnnotationView *locationAnnotationView = (XYLFenceMapAnnotationView *)[mapView dequeueReusableAnnotationViewWithIdentifier:identifier];

if (!locationAnnotationView) {

locationAnnotationView = [[XYLFenceMapAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier:identifier];

locationAnnotationView.canShowCallout = NO;

}

return locationAnnotationView;

}

return nil;

}

 到这里 定位点功能实现了.  还是心跳的,脉冲.