android - 如何为 Android 应用程序的密码实现 Smart Lock

Question

有人了解智能锁吗？它是如何工作的？

我想开发一个在 Android 应用程序中为密码实现 Smart Lock 的应用程序。

我正在关注 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();

和生成的 Credential 实例

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

为了使用 Credentials API 保存凭证，我使用了

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
              }
          }
      }
  }
});

我的 Manifest 拥有

的权限

   <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" />

并且还在应用程序标签内添加了元数据作为

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

在 Android 应用程序中完成所有操作后，我在 Google Developer Console 上生成了项目并完成了 this link here 中提到的所有操作.

但是当我运行项目时，出现错误:

Could not resolve error.

有人在 Android 应用程序上开发过 Google 的 Smart Lock for Password 应用程序吗？

Answer 1

对我来说，Smart Lock for Passwords on Android示例项目运行良好。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 credential 实现为:

在 onCreate 中:

    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);
                    }
                }
            });

...主要 Activity 的 resolveResult 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();
    }
}