初始化授权
```
#import <Wellsign_ReaderSDK/Wellsign_ReaderSDK.h>
//AppDelegate, APP冷启动调用如下
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
//初始化SDKO,此接口应该在应用程序启动时调用一次,不可重复调用
//确保成功之后在进行上传文件/渲染文件/提交签字数据
[WellsignAuthrization initSDKOSrvURL:@"http://192.168.0.152:28080"
accessKeyId:@"accessKeyId"
accessKeySecret:@"accessKeySecret"
userId:@"用户id"
completeBlock:^(BOOL success, NSString * _Nullable msg) {
if (!success) {
//初始化失败
NSLog(@"SDKO初始化失败:%@", msg);
}
//初始化成功, do something...
}];
return YES;
}
```