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 */
        }
    });
}

@Override
protected 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();
}