I am using the following API :

[[UIApplication sharedApplication] openURL: options: completionHandler: ];

The argument to openURL is generated by the following example format string :

@"baidumap://map/direction?origin=latlng:%f,%f | name:我的位置&destination=latlng:%f,%f|name:终点&mode=driving"

The app runs smoothly during runtime but fails to invoke baidumap.

Have attached an anonymous fuction to completionHandler :

^(BOOL success) { if (success) NSLog(@"Invoke success = 1"); else NSLog(@"Invoke success = 0"); }

The augument passes in via "BOOL sucess" is always 0.

I suspect that the problem comes from the format string.

Hope that somebody who is familiar with Baidu map API can give me some help.

CodePudding user response：

As stated on the baidumap site you need some escaping :

NSString *urlString = [[NSString stringWithFormat:@"baidumap://map/direction?origin=latlng:%f,%f|name:我的位置&destination=latlng:%f,%f|name:终点&mode=driving",currentLatitude, currentLongitude,_shopLat,_shopLon] stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding] ;

And also to give geographic coordinates for sources and destination