Dropbox認證後重新啓動應用

Question

我不知道如何使用我的應用程序重新啓動後保存的身份驗證令牌，所以我不需要再次進行身份驗證。

/*DROPBOX ==========================*/ 
private String APP_KEY= "key"; 
private String APP_SECRET= "secret"; 

AppKeyPair appKeys; 
AndroidAuthSession session; 
DropboxAPI<AndroidAuthSession> dpAPI; 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.readings_main); 

    //get dropbox keys 
    SharedPreferences sharedPref = getSharedPreferences(getString(R.string.dp_key_token), Context.MODE_PRIVATE); 

     // if i use these 2 lines i get exception that my key isn´t set in manifest, and thats true because in manifest i have the first key, not hte generated after auth. 
    // APP_KEY= sharedPref.getString("key", "key"); 
    // APP_SECRET= sharedPref.getString("secret", "secret"); 


appKeys = new AppKeyPair(APP_KEY, APP_SECRET); 
    // setup dropbox session 
    session = new AndroidAuthSession(appKeys, AccessType.DROPBOX); 
    dpAPI= new DropboxAPI<AndroidAuthSession>(session); 


} 


protected void onResume() { 
    super.onResume(); 

    if (dpAPI.getSession().authenticationSuccessful()) { 
      try { 
       // Required to complete auth, sets the access token on the session 
       dpAPI.getSession().finishAuthentication(); 
       AccessTokenPair tokens = dpAPI.getSession().getAccessTokenPair(); 
       //store keys in sharedpreferences  ; 
       storeKeys(tokens.key, tokens.secret); 

      } catch (IllegalStateException e) { 
       Log.i("DbAuthLog", "Error authenticating", e); 
      } 
     } 
} 

public boolean storeKeys(String key, String secret) { 

    SharedPreferences sharedPref = getSharedPreferences(getString(R.string.dp_key_token), Context.MODE_PRIVATE); 
    SharedPreferences.Editor editor = sharedPref.edit(); 
    editor.putString("key", key); 
    editor.putString("secret", secret); 
    return editor.commit(); 

} 

後來我用...

dpAPI.getSession().startAuthentication(ADLAppActivity.this);

，然後我上傳文件，所以一切工作正常，我。但是，重新啓動應用程序後，我不想再次進行身份驗證。我應該如何在SharedPref中使用保存的令牌？

Answer 1

請檢查this answer。

您應該調用session.setOAuth2AccessToken(RESTORED_TOKEN);而不是調用dpAPI.getSession().startAuthentication(ADLAppActivity.this);，並將您的令牌從首選項中恢復。