将JSON解析为Parcelable对象，以将Parcelable对象发送到Android中的另一个Activity

Question

我想传递来自在API上完成的POST请求的JSON数据响应。我创建了实现Parcelable类的Sharing类。我想利用parcelable类在主活动中保存少量对象（客户端信息）JSON响应并将它们发送到第二个活动以仅显示客户端信息。这是我各自的代码，这是api响应.

{
   "success": "true",
   "message": "Logged in successfuly",
   "user": {
       "id": 13,
       "userNo": "",
       "name": "Adam",
       "username": "[email protected]",
       "actualPassword": "12345",
       "email": "[email protected]",
       "secondaryEmail": null,
       "primaryPhone": 9876544345,
       "secondaryPhone": null,
       "clientId": {
           "clientId": 1,
           "name": "Charlie",
           "address": "India",
           "createdBy": null,
           "createdAt": "2018-10-25T11:25:19.000Z",
           "updatedAt": "2019-01-21T10:10:39.000Z",
           "is_active": 1,
           "clientCode": "APL",
           "startTime": "08:00:00.000000",
           "endTime": "07:59:59.000000",
       },
       "gender": null,
       "dob": null,
       "emergencyMobile": null,
       "officeNo": null,
       "loggedInStatus": 0,
   }
}

这是我的主要活动..

public class MainActivity extends AppCompatActivity {


public  static String myUrl="IP Address URL Link";
TextView tvIsConnected;
EditText etEmail;
EditText etPassword;
TextView tvResult;
Button btn_Send;
String name="";

TextView client_ID;
TextView client_Name;
@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    etEmail = findViewById(R.id.etEmail);
    etPassword = findViewById(R.id.etPassword);
    tvResult = (TextView) findViewById(R.id.tvResult);

    btn_Send =(Button)findViewById(R.id.btnSend);


    final HTTPAsyncTask process = new HTTPAsyncTask();
    btn_Send.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            process.execute();
        }
    });


}


@SuppressLint("ParcelCreator")
public  class HTTPAsyncTask extends AsyncTask<String, Void, String> implements Parcelable {
    JSONObject jsonObject = new JSONObject();
    Intent i = new Intent(MainActivity.this, DashboardActivity.class);

    @Override
    protected String doInBackground(String... urls) {

        StringBuffer output = new StringBuffer();
        try {
            try {

                URL url = new URL(myUrl);

                jsonObject.put("userName", etEmail.getText().toString());
                jsonObject.put("password", etPassword.getText().toString());



                HttpURLConnection conn = (HttpURLConnection) url.openConnection();

                conn.setReadTimeout(15000 );
                conn.setConnectTimeout(15000 );
                conn.setRequestMethod("POST");
                conn.setDoInput(true);
                conn.setDoOutput(true);
                conn.setRequestProperty("Content-Type", "application/json; charset=utf-8");



                OutputStream os = conn.getOutputStream();

                os.write(jsonObject.toString().getBytes());
                os.flush();
                BufferedReader br = new BufferedReader(new InputStreamReader((conn.getInputStream())));
                String temp;
                while ((temp = br.readLine()) != null) {
                    output.append(temp);
                }
                conn.disconnect();

            } catch (JSONException e) {
                e.printStackTrace();
                return "Error";
            }
        }
        catch (IOException e) {
            return "Error while retrieving screen";
        }
        catch (Exception e) {
            e.printStackTrace();
        }

        return output.toString();
}



    @Override
    public void onPostExecute(String result ) {



        i.putExtra("key",result);

        startActivity(i);



    }

    @Override
    public int describeContents() {
        return 0;
    }

    @Override
    public void writeToParcel(Parcel dest, int flags) {

    }
}


}

以下是我的Sharing类，它实现了Parcelable类。

public class SharingClass implements Parcelable {

private int ClientId ;
private String ClientName;
private String ClientAddress;

public SharingClass(){
    super();
}

public SharingClass(Parcel parcel){
    this.ClientId = parcel.readInt();
    this.ClientName = parcel.readString();
    this.ClientAddress = parcel.readString();
}

public SharingClass(Parcelable sharedObject) {
}

@Override
public int describeContents() {
    return 0;
}

@Override
public void writeToParcel(Parcel dest, int flags) {
    dest.writeInt(ClientId);
    dest.writeString(ClientName);
    dest.writeString(ClientAddress);
}

public static final Creator<SharingClass> CREATOR = new Creator<SharingClass>() {
    @Override
    public SharingClass createFromParcel(Parcel parcel) {
        return new SharingClass(parcel);
    }

    @Override
    public SharingClass[] newArray(int i) {
        return new SharingClass[i];
    }
};

public void setClientId(int ClientId) {
    this.ClientId = ClientId;
}

public void setClientName(String ClientName) {
    this.ClientName = ClientName;
}

public void setClientAddress(String ClientAddress) {
    this.ClientAddress = ClientAddress;
}

public int getClientId() {
    return ClientId;
}

public String getClientName() {
    return ClientName;
}

public String getClientAddress() {
    return ClientAddress;
}


}

请给我一个访问JSON数据的解决方案，以在第二个活动中显示客户端信息，并显示解析，因为我是Android新手

Answer 1

既然你的对象实现了Parcelable，那么只需将它们放入你的Intent with putExtra（）：

Intent i = new Intent();
i.putExtra("name_of_extra", myParcelableObject);

然后你可以用getParcelableExtra():将它们拉出来

Intent i = getIntent();
SharingClass sharingClass = (SharingClass) i.getParcelableExtra("name_of_extra");

如果你必须访问POJO中的数据，你可以使用getter方法，例如在你的情况下。如果您必须访问ClientId，那么您可以通过。

int clientId = sharingClass.getClientId();

希望这可以帮助。