MKMapSnapshotOptions生成地图快照

最新推荐文章于 2025-07-20 14:55:05 发布

原创最新推荐文章于 2025-07-20 14:55:05 发布 · 1.5k 阅读

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<pre name="code" class="objc">- (void)viewDidLoad {
    
    [super viewDidLoad];
    
    MKMapSnapshotOptions *options=[[MKMapSnapshotOptions alloc]init];
    
    //截图的地图类型
    options.mapType=MKMapTypeHybrid;
    //显示建筑物
    options.showsBuildings=YES;
    
    //地图的范围
    options.region=self.mapView.region;
    
    //截图输出的大小
    options.size=CGSizeMake(500, 500);
    
    options.scale=[UIScreen mainScreen].scale;
    
    MKMapSnapshotter *shotter=[[MKMapSnapshotter alloc]initWithOptions:options];
    
    [shotter startWithCompletionHandler:^(MKMapSnapshot * _Nullable snapshot, NSError * _Nullable error) {
        
        if (error) {
            NSLog(@"截图出错了");
            return;
        }
        
        UIImage *img=snapshot.image;
        
        //后边的参数表示压缩比例0-1
        NSData *data=UIImageJPEGRepresentation(img, 1.0);
        
        [data writeToFile:@"/Users/hq/Desktop/map.png" atomically:YES];
        
    }];
}