Amazon Cognito 集成 Login with Amazon 详解

<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>

android:configChanges="keyboard|keyboardHidden|orientation|screenSize"

<activity android:name="com.amazon.identity.auth.device.workflow.WorkflowActivity"            android:theme="@android:style/Theme.NoDisplay"            android:allowTaskReparenting="true"            android:launchMode="singleTask">            <intent-filter>                <action android:name="android.intent.action.VIEW"/>                <category android:name="android.intent.category.DEFAULT"/>                <category android:name="android.intent.category.BROWSABLE"/>                <!-- android:host must use the full package name found in Manifest General Attributes -->                <data android:host="${applicationId}" android:scheme="amzn"/>            </intent-filter>        </activity>

android:src="@drawable/btnlwa_gold_loginwithamazon.png"

private RequestContext requestContext;
@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    requestContext = RequestContext.create(this);
}

requestContext.registerListener(new AuthorizeListener() {
    /* Authorization was completed successfully. */
    @Override
    public void onSuccess(AuthorizeResult result) {
        /* Your app is now authorized for the requested scopes */
    }
    /* There was an error during the attempt to authorize the
       application. */
    @Override
    public void onError(AuthError ae) {
        /* Inform the user of the error */
    }
    /* Authorization was cancelled before it could be completed. */
    @Override
    public void onCancel(AuthCancellation cancellation) {
        /* Reset the UI to a ready-to-login state */
    }
});
}

@Override
protected void onResume() {
    super.onResume();
    requestContext.onResume();
}

// 给登录按钮注册点击事件mLoginButton = findViewById(R.id.login_with_amazon);mLoginButton.setOnClickListener(new View.OnClickListener() {    @Override    public void onClick(View view) {        AuthorizationManager.authorize(                new AuthorizeRequest.Builder(requestContext)                        .addScopes(ProfileScope.profile(), ProfileScope.postalCode())                        .build()        );    }});

User.fetch(this, new Listener<User, AuthError>() {        /* fetch completed successfully. */        @Override        public void onSuccess(User user) {            final String name = user.getUserName();            final String email = user.getUserEmail();            final String accountId = user.getUserId();            final String zipCode = user.getUserPostalCode();
            runOnUiThread(new Runnable() {                @Override                public void run() {                    StringBuilder profileBuilder = new StringBuilder("Profile Response: ");                    profileBuilder.append(String.format("Welcome, %s!\n", name));                    profileBuilder.append(String.format("Your Account Id is %s\n", accountId));                    profileBuilder.append(String.format("Your email is %s\n", email));                    profileBuilder.append(String.format("Your zipCode is %s\n", zipCode));                    String profile = profileBuilder.toString();                    Toast.makeText(MainActivity.this, profile, Toast.LENGTH_LONG).show();                }            });        }        /* There was an error during the attempt to get the profile. */        @Override        public void onError(AuthError ae) {     /* Retry or inform the user of the error */        }    });}

@Overrideprotected void onStart(){    super.onStart();    Scope[] scopes = { ProfileScope.profile(), ProfileScope.postalCode() };    AuthorizationManager.getToken(this, scopes, new Listener<AuthorizeResult, AuthError>() {
        @Override        public void onSuccess(AuthorizeResult result) {            if (result.getAccessToken() != null) {        /* The user is signed in */            } else {        /* The user is not signed in */            }        }
        @Override        public void onError(AuthError ae) {    /* The user is not signed in */        }    });}

/**     * Sets the state of the application to reflect that the user is currently authorized.     */    private void setLoggedInState() {        mLoginButton.setVisibility(Button.GONE);        mLogoutButton.setVisibility(Button.VISIBLE);    }
    /**     * Sets the state of the application to reflect that the user is not currently authorized.     */    private void setLoggedOutState() {        mLoginButton.setVisibility(Button.VISIBLE);        mLogoutButton.setVisibility(Button.GONE);    }

// 退出按钮，及注册点击事件mLogoutButton = (Button) findViewById(R.id.logout);mLogoutButton.setOnClickListener(new View.OnClickListener() {
    @Override    public void onClick(View v) {        // 退出 Amazon 登录        AuthorizationManager.signOut(getApplicationContext(), new Listener<Void, AuthError>() {            @Override            public void onSuccess(Void response) {                runOnUiThread(new Runnable() {                    @Override                    public void run() {                        setLoggedOutState();                    }                });            }
            @Override            public void onError(AuthError authError) {                Log.e(TAG, "Error clearing authorization state.", authError);            }        });    }});

// 初始化 Amazon Cognito 凭证提供程序
CognitoCachingCredentialsProvider credentialsProvider = new CognitoCachingCredentialsProvider(
    getApplicationContext(),
    "cn-north-1:12345678-abcd-1234-efgh-12345678abcd", // 身份池 ID
    Regions.CN_NORTH_1 // 区域
);

compile 'com.amazonaws:aws-android-sdk-core:2.2.22'
compile 'com.amazonaws:aws-android-sdk-cognito:2.2.22'
compile 'com.amazonaws:aws-android-sdk-cognitoidentityprovider:2.2.22'

private static final Regions MY_REGION = Regions.CN_NORTH_1;private String identityPoolId;private CognitoCachingCredentialsProvider credentialsProvider;
…
   private void getIdentity() {        new Thread(){            @Override            public void run() {                super.run();                try {
    // 先只获取身份ID ，验证 Cognito 已正常启用。                    String identityId = credentialsProvider.getIdentityId();                    Log.d(TAG, "my ID is " + identityId);                }                catch (Exception e)                {                    e.printStackTrace();                }            }        }.start();    }
@Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        identityPoolId = "cn-north-1:12345678-abcd-1234-efgh-12345678abcd";        // 初始化 Amazon Cognito 凭证提供程序        credentialsProvider = new CognitoCachingCredentialsProvider(            getApplicationContext(),            identityPoolId, // 身份池 ID            MY_REGION // 区域        );
    getIdentity();
…

11-06 16:05:11.151 25362-25381/com.example.cognito D/CognitoLwA: my ID is cn-north-1: 12345678-abcd-1234-efgh-12345678abcd

@Override
            public void onSuccess(AuthorizeResult result) {
                String token = result.getAccessToken();
                if (null != token) {
                    /* 用户已登录，联合登录Cognito*/
                    Map<String, String> logins = new HashMap<String, String>();
                    logins.put("www.amazon.com", token);
                    credentialsProvider.setLogins(logins);
                    getIdentity();
                    fetchUserProfile();
                } else {
                    /* The user is not signed in */
                }
      }

private void getIdentity() {    new Thread(){        @Override        public void run() {            super.run();            // 先只获取身份ID ，验证 Cognito 已正常启用。            String identityId = credentialsProvider.getIdentityId();            Log.d(TAG, "my ID is " + identityId);            try {                AmazonS3 s3 = new AmazonS3Client(credentialsProvider);                s3.setRegion(Region.getRegion(MY_REGION));                List<Bucket> bucketList = s3.listBuckets();                final StringBuilder bucketNameList = new StringBuilder("My S3 buckets are:\n");                for (Bucket bucket : bucketList) {                    bucketNameList.append(bucket.getName()).append("\n");                }                Log.d(TAG, "s3 bucket" + bucketNameList);                runOnUiThread(new Runnable() {                        @Override                        public void run() {                      Toast.makeText(MainActivity.this, bucketNameList, Toast.LENGTH_LONG).show();                   }                 });               }               catch (Exception e) {                   e.printStackTrace();                   runOnUiThread(new Runnable() {                       @Override                       public void run() {                        Toast.makeText(MainActivity.this, "This is OK as not authenticated to list S3 bucket.", Toast.LENGTH_LONG).show();                       }                   });            }        }    }.start();}