如何为Android应用程序实施密码的智能锁定

Question

有没有人知道Smart Lock？它是如何工作的？

我想在Android应用程序中开发一个为密码实现Smart Lock的应用程序.

我关注的是https://developers.google.com/identity/smartlock-passwords/android/.

我已经初始化了 GoogleApiClient

 mCredentialsApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(Auth.CREDENTIALS_API)
            .build();

并生成Credentialas的实例

 final Credential credential = new Credential.Builder(email)
            .setPassword(password)
            .build();

用来保存凭证Credentials API,我用过

Auth.CredentialsApi.save(mCredentialsClient, credential).setResultCallback(
 new ResultCallback() {
  @Override
  public void onResult(Status status) {
      if (status.isSuccess()) {
          // Credentials were saved
      } else {
          if (status.hasResolution()) {
              // Try to resolve the save request. This will prompt the user if
              // the credential is new.
              try {
                  status.startResolutionForResult(this, RC_SAVE);
              } catch (IntentSender.SendIntentException e) {
                  // Could not resolve the request
              }
          }
      }
  }
});

我Manifest有权限

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

并Meta data在内部应用程序标签中添加了

    <meta-data
        android:name="com.google.android.gms.version"
        android:value="@integer/google_play_services_version" />

在Android应用程序中Google Developer Console完成所有操作后,我已经生成了项目并完成了此链接中提到的所有操作.

但是当我运行项目时,我收到的错误是:

无法解决错误.

有没有人在Android应用程序上使用Google的Smart Lock for Password？

Answer 1

对我来说,Android示例项目上的Smart Lock for Passwords工作正常.您可能想尝试从那里开始,看看是否有帮助.在示例代码中,save凭证实现为:

在onCreate:

    mCredentialsApiClient = new GoogleApiClient.Builder(this)
            .addConnectionCallbacks(this)
            .addOnConnectionFailedListener(this)
            .addApi(Auth.CREDENTIALS_API)
            .build();

...在saveCredetial方法中:

    final Credential credential = new Credential.Builder(email)
            .setPassword(password)
            .build();

    Auth.CredentialsApi.save(mCredentialsApiClient, credential).setResultCallback(
            new ResultCallback<Status>() {
                @Override
                public void onResult(Status status) {
                    if (status.isSuccess()) {
                        Log.d(TAG, "SAVE: OK");
                        showToast("Credential Saved");
                        hideProgress();
                    } else {
                        resolveResult(status, RC_SAVE);
                    }
                }
            });

... resolveResult主要活动的方法:

private void resolveResult(Status status, int requestCode) {
    Log.d(TAG, "Resolving: " + status);
    if (status.hasResolution()) {
        Log.d(TAG, "STATUS: RESOLVING");
        try {
            status.startResolutionForResult(MainActivity.this, requestCode);
        } catch (IntentSender.SendIntentException e) {
            Log.e(TAG, "STATUS: Failed to send resolution.", e);
            hideProgress();
        }
    } else {
        Log.e(TAG, "STATUS: FAIL");
        showToast("Could Not Resolve Error");
        hideProgress();
    }
}