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This document mainly describes how to install and use the OSS iOS SDK. This document assumes that you have already activated the Alibaba Cloud OSS service and created an AccessKeyID and an AccessKeySecret. In the document, ID refers to the AccessKeyID and KEY indicates the AccessKeySecret. If you have not yet activated or do not know about the OSS service, log on to the OSS Product Homepage for more help.
The OSS iOS SDK framework needs to be introduced.
You can use this AliyunOSSSDK.xcworkspace,and select scheme which named AliyunOSSSDK OSX to directly generate a framework in MacOS :
# Clone the project
$ git clone git@github.com:aliyun/aliyun-oss-ios-sdk.git
# Enter the directory
$ cd aliyun-oss-ios-sdk
# Run the packaging script
$ sh ./buildiOSFramework.sh
# Enter the generated packaging directory where the AliyunOSSiOS.framework will be generated
$ cd Products && ls
In Xcode, drag the OSS iOS SDK framework and drop it to your target, and select Copy items if needed in the pop-up box.
If your project manages dependencies using a Pod, add the following dependency to the Podfile. In this case, you do not need to import the OSS iOS SDK framework.
pod 'AliyunOSSiOS'
CocoaPods is an outstanding dependency manager. Recommended official reference documents: CocoaPods Installation and Usage Tutorial.
You can directly introduce the OSS iOS SDK framework or the Pod dependency, either way works.
#import <AliyunOSSiOS/AliyunOSSiOS.h>
Note: After you introduce the OSS iOS SDK framework, add -ObjC to Other Linker Flags of Build Settings in your project. If the -force_load option has been configured for your project, add -force_load <framework path>/AliyunOSSiOS.
The OSS mobile SDK has introduced the HTTPDNS for domain name resolution to solve the problem of domain resolution hijacking in a wireless network and directly uses IP addresses for requests to the server. In the IPv6-Only network, compatibility issues may occur. The app has officially issued the review requirements for apps, requiring apps to be IPv6-only network compatible. To this end, the SDK starts to be compatible from V2.5.0. In the new version, apart from -ObjC settings, two system libraries should be introduced:
libresolv.tbd
SystemConfiguration.framework
CoreTelephony.framework
At the WWDC 2016, Apple announced that starting January 1, 2017, all the apps in Apple App Store must enable App Transport Security (ATS). That is to say, all newly submitted apps are not allowed to use NSAllowsArbitraryLoads to bypass the ATS limitation by default. We'd better ensure that all network requests of the app are HTTPS-encrypted. Otherwise the app may have troubles to pass the review.
This SDK provides the support in V2.6.0 and above. Specifically, the SDK will not issue any non-HTTPS requests. At the same time, the SDK supports endpoint with the https:// prefix. You only need to set the correct HTTPS endpoint to ensure that all network requests comply with the requirements.
Note:
https:// prefix for setting the endpoint.You will get an OSSTask immediately for all operations that call APIs:
OSSTask * task = [client getObject:get];
You can configure a continuation for the task to achieve asynchronous callback. For example,
[task continueWithBlock: ^(OSSTask *task) {
// do something
...
return nil;
}];
You can also wait till the task is finished (synchronous wait). For example,
[task waitUntilFinished];
...
The basic object upload and download processes are demonstrated below. For details, you can refer to the following directories of this project:
test: Click to view details;
or
demo: click to view details.
We recommend STS authentication mode to initialize the OSSClient on mobile. For details about authentication, refer to the Access Control section in the complete official documentation provided in the following link.
Notice:if your app's buckets only at one data center,we recommend you to keep the lifecycle of OSSClient's instance consistent with your app.the code below demonstrate the usage
@interface AppDelegate ()
@property (nonatomic, strong) OSSClient *client;
@end
/**
* the url to fetch sts info,for detail please refer to https://help.aliyun.com/document_detail/31920.html
*/
#define OSS_STS_URL @"oss_sts_url"
/**
* the endpoint for OSS used in app, for detail please refer to https://help.aliyun.com/document_detail/31837.html
*/
#define OSS_ENDPOINT @"your bucket's endpoint"
@implementation AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
// Override point for customization after application launch.
// initialize OSSClient
[self setupOSSClient];
return YES;
}
- (void)setupOSSClient {
// initialize credential provider,which auto fetch and update sts info from sts url.
OSSAuthCredentialProvider *credentialProvider = [[OSSAuthCredentialProvider alloc] initWithAuthServerUrl:OSS_STS_URL];
// set config for oss client networking
OSSClientConfiguration *cfg = [[OSSClientConfiguration alloc] init];
_client = [[OSSClient alloc] initWithEndpoint:OSS_ENDPOINT credentialProvider:credentialProvider clientConfiguration:cfg];
}
Suppose that you have a bucket in the OSS console. An OSSTask will be returned after each SDK operation. You can configure a continuation for the task to achieve asynchronous callback. You can also use the waitUntilFinished to block other requests and wait until the task is finished.
OSSPutObjectRequest * put = [OSSPutObjectRequest new];
put.bucketName = @"<bucketName>";
put.objectKey = @"<objectKey>";
put.uploadingData = <NSData *>; // Directly upload NSData
put.uploadProgress = ^(int64_t bytesSent, int64_t totalByteSent, int64_t totalBytesExpectedToSend) {
NSLog(@"%lld, %lld, %lld", bytesSent, totalByteSent, totalBytesExpectedToSend);
};
OSSTask * putTask = [client putObject:put];
[putTask continueWithBlock:^id(OSSTask *task) {
if (!task.error) {
NSLog(@"upload object success!");
} else {
NSLog(@"upload object failed, error: %@" , task.error);
}
return nil;
}];
// Wait until the task is finished
// [putTask waitUntilFinished];
The following code downloads a specified object as NSData:
OSSGetObjectRequest * request = [OSSGetObjectRequest new];
request.bucketName = @"<bucketName>";
request.objectKey = @"<objectKey>";
request.downloadProgress = ^(int64_t bytesWritten, int64_t totalBytesWritten, int64_t totalBytesExpectedToWrite) {
NSLog(@"%lld, %lld, %lld", bytesWritten, totalBytesWritten, totalBytesExpectedToWrite);
};
OSSTask * getTask = [client getObject:request];
[getTask continueWithBlock:^id(OSSTask *task) {
if (!task.error) {
NSLog(@"download object success!");
OSSGetObjectResult * getResult = task.result;
NSLog(@"download result: %@", getResult.downloadedData);
} else {
NSLog(@"download object failed, error: %@" ,task.error);
}
return nil;
}];
// Use a blocking call to wait until the task is finished
// [task waitUntilFinished];
The SDK provides advanced upload, download, resumable upload/download, object management and bucket management features. For details, see the complete official documentation: click to view details.
1.how to support armv7s？
arm is backward compatible, armv7 library is also suitable for app that needs to support armv7s. If you still need to optimize armv7s, you could set up as shown below.
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