android两次调用相同的对话框

Question

我正在开发一个应用程序，但我遇到了一件简单的事情。

在我的 Activity 中，我显示了一个询问邮件地址和激活的对话框 (AlertDialog.Builder)。这两个字段使用 Rest API 检查。

如果激活码错误，我将重新启动 Activity (使用 Intent)并再次显示对话框。

我不明白为什么，如果我第一次输入错误的激活码，第二次会正确出现对话框，但是当我单击“提交”时，应用程序不会运行 Rest 调用并始终返回“无效凭据”，就像它会提醒旧的“状态”一样。

相反，如果我运行该应用程序并输入正确的凭据，则一切正常。

有什么想法吗？

源代码:

 public class PinActivity extends Activity {

String mail;
String verification;
JSONObject responseServer;
BluetoothSocket bsocket;
ConnectedThreadBT cdbt;
SharedPreferences sharedPref;
SharedPreferences.Editor editor;
EditText mail_add;
EditText verification_code;

@Override
protected void onCreate (Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_check);
    setup();

    dialogActivation();

}

@Override
public void onDestroy() {
    super.onDestroy();
}

private void setup(){
    RestClientManager.initialize(getApplicationContext()).enableDebugLog(true);
    bsocket = BluetoothApplication.getBSocket();
    //salvo codice attivazione sul pacchetto
    cdbt=new ConnectedThreadBT(bsocket,mHandler, "PinActivity");
    cdbt.start();



}


private void dialogActivation(){


    android.support.v7.app.AlertDialog.Builder builder = new android.support.v7.app.AlertDialog.Builder(new ContextThemeWrapper(this, R.style.myDialog));
    LayoutInflater inflater = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View view = inflater.inflate(R.layout.custom_dialog_verification, null);
    mail_add = (EditText) view.findViewById(R.id.mailAddress);
    verification_code = (EditText) view.findViewById(R.id.verification_code);

    builder.setView(view).
            setPositiveButton(getApplicationContext().getResources().getString(R.string.submit), new DialogInterface.OnClickListener() {
                public void onClick(DialogInterface dialog, int id) {


                    //prendo e salvo credenziali
                    mail = mail_add.getText().toString();

                    verification = verification_code.getText().toString();
                    //invio dati al server
                    activatePPS();


                }

            });


    builder.setCancelable(false);
    builder.show();


}


private void activatePPS(){

    dialogCheck();

    String url = "....";

    RestClientManager.getInstance().makeJsonRequest(Request.Method.POST, url, new RequestHandler<>(new RequestCallbacks<JSONObject, Error>()
    {
        @Override
        public void onRequestSuccess(JSONObject response)
        {

            responseServer = response;

            int reply_code = 0;
            try {
                reply_code = response.getInt("reply_code");
                checkReplyCode(reply_code);

            } catch (JSONException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }


        }

        @Override
        public void onRequestError(Error error)
        {

        }




    }, paramsList()));


}

private void dialogCheck(){



    android.support.v7.app.AlertDialog.Builder builder = new android.support.v7.app.AlertDialog.Builder(new ContextThemeWrapper(this, R.style.myDialog));
    LayoutInflater inflater = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    View view = inflater.inflate(R.layout.custom_dialog_load_check, null);
    builder.setView(view);
    builder.setCancelable(false);
    builder.show();




}

private void checkReplyCode(int reply_code) throws JSONException, IOException {



    switch(reply_code){

        case 0:

            successActivation();

            break;
        case 1001:
            //credenziali invalide
            Toast.makeText(getApplicationContext(), getResources().getString(R.string.wrong_credentials), Toast.LENGTH_LONG).show();         

               Intent intent = new Intent(PinActivity.this, PinActivity.class);
                    startActivity(intent);


            break;


    }


}

private void successActivation() throws JSONException {


    String access_token = responseServer.get("access_token").toString();
    String nickname = responseServer.get(".....



    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {

            int value = sharedPref.getInt("step_conf",0);
            if(value==0){
                Intent intent = new Intent(getApplicationContext(), MethodCurveActivity.class);
                intent.putExtra("style", 0);
                startActivity(intent);
            }
            else{
                Intent intent = new Intent(getApplicationContext(), MainActivity.class);
                startActivity(intent);

            }

        }
    },3000);



}

private ArrayMap<String, String> paramsList(){


    ArrayMap<String, String> parameters=new ArrayMap<>();
    parameters.put("user_mail", mail);
    parameters.put(.....

    return parameters;
}

private void resetMobileDevice(){


    String url = "....";



    RestClientManager.getInstance().makeJsonRequest(Request.Method.POST, url, new RequestHandler<>(new RequestCallbacks<JSONObject, Error>()
    {
        @Override
        public void onRequestSuccess(JSONObject response)
        {

            System.out.println("Risposta:"+response);
            responseServer = response;

            int reply_code = 0;
            try {
                reply_code = response.getInt("reply_code");
            } catch (JSONException e) {
                e.printStackTrace();
            }
            try {
                checkReplyCode(reply_code);
            } catch (JSONException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }


        }

        @Override
        public void onRequestError(Error error)
        {

        }

    }, paramsList()));

}

private final Handler mHandler = new Handler() {
    @Override
    public void handleMessage(Message msg) {
        switch (msg.what) {



        }
    }
};

}

重要的一点是在错误之后的“案例 1001”中。我已经尝试了 finish() 和所有删除 Activity 旧实例的方法...

Answer 1

在您的项目中创建 Application 类，并在其 onCreate 方法中初始化 RestClientManager，如下所示:

public class MyApp extends Application {
    private final static String LOG_TAG = Application.class.getSimpleName();

    @Override
    public void onCreate() {
        Log.d(LOG_TAG, "Application.onCreate - Initializing application...");
        super.onCreate();
        initializeApplication();
        Log.d(LOG_TAG, "Application.onCreate - Application initialized OK");
    }

    private void initializeApplication() {
        RestClientManager.initialize(getApplicationContext()).enableDebugLog(true);    
    }
}

在您的 <Application> 中添加这一行在 androidmanifest.xml 中标记文件:

<application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:name=".App"
        android:theme="@style/AppTheme">

        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
</application>

并确保你的单例结构应该是这样的:

    private static RestClientManager instance;

    static void initInstance()
    {
        if (instance == null)
        {
            // Create the instance
            instance = new RestClientManager();
        }
    }

    public static RestClientManager getInstance()
    {
        // Return the instance
        return instance;
    }

记得去掉

RestClientManager.initialize(getApplicationContext()).enableDebugLog(true);    

来自您的主要 Activity 。

请试一试，然后告诉我。