百度地图api问题：
Undefined symbols for architecture i386:
"_OBJC_CLASS_$_BMKAnnotationView", referenced from:
_OBJC_CLASS_$_LocationAnnotationView in LocationAnnotationView.o
"_OBJC_CLASS_$_BMKMapManager", referenced from:
objc-class-ref in BaiduMapViewController.o
"_OBJC_CLASS_$_BMKMapView", referenced from:
objc-class-ref in BaiduMapViewController.o
"_OBJC_CLASS_$_BMKPinAnnotationView", referenced from:
objc-class-ref in BaiduMapViewController.o
"_OBJC_CLASS_$_BMKPlanNode", referenced from:
objc-class-ref in BaiduMapViewController.o
"_OBJC_CLASS_$_BMKPointAnnotation", referenced from:
objc-class-ref in BaiduMapViewController.o
"_OBJC_CLASS_$_BMKSearch", referenced from:
objc-class-ref in BaiduMapViewController.o
"_OBJC_METACLASS_$_BMKAnnotationView", referenced from:
_OBJC_METACLASS_$_LocationAnnotationView in LocationAnnotationView.o
ld: symbol(s) not found for architecture i386
clang: error: linker command failed with exit code 1 (use -v to see invocation)
解决方法：
成静态库即可，网上搜搜有的百度地图真机和模拟器的静态库合成