Android

Question

我正在开发一个 android 应用程序，它使用 syncano 将数据发送到 syncano 服务器，但数据拒绝发送。我们已经验证了我们发送的条件有效，但它不起作用。这是用于发送数据的activity：

package com.crash.beacon;

import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.widget.DrawerLayout;
import android.support.v7.app.ActionBarDrawerToggle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.view.Menu;
import android.view.MenuItem;
import android.widget.Button;
import com.crash.beacon.Book;
import com.syncano.library.Syncano;
import com.syncano.library.api.Response;


public class MainActivity extends AppCompatActivity implements SensorEventListener, LocationListener {
    boolean isEnabled = false;
    Button btn;
    private Syncano syncano;
    String[] listItems = new String[]{"Home", "About", "Website"};
    float lat = 0, lng = 0, alt = 0;
    Sensor accel;
    SensorManager manager;
    float x = 0, y = 0, z = 0;
    DrawerLayout dl;
    private ActionBarDrawerToggle mDrawerToggle;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        btn = (Button)findViewById(R.id.crash);
        syncano = new Syncano("api_key", "late-surf-9471");
        gui(isEnabled);
        manager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
        accel = manager.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);

        // Get the location manager
        LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
        // Define the criteria how to select the locatioin provider -> use
        // default
        Criteria criteria = new Criteria();
        String provider = locationManager.getBestProvider(criteria, false);

        Location location = locationManager.getLastKnownLocation(provider);

        // Initialize the location fields
        if (location != null) {
           onLocationChanged(location);
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();

        //noinspection SimplifiableIfStatement
        if (id == R.id.action_settings) {
            return true;
        }

        return super.onOptionsItemSelected(item);
    }
    public void onCrash(View view){
          isEnabled = !isEnabled;
          gui(isEnabled);



    }
    public void gui(boolean state){
        if(state){
            btn.setText("Enabled");
        }
        else{
            btn.setText("Disabled");
        }
    }

    @Override
    protected void onResume(){
        super.onResume();
        manager.registerListener(this, accel, SensorManager.SENSOR_DELAY_NORMAL);

    }
    @Override
    protected void onPause(){
        super.onPause();
        manager.unregisterListener(this);
    }

    @Override
    public void onSensorChanged(SensorEvent event) {
        x = event.values[0];
        y = event.values[1];
        z = event.values[2];
        //Demo values
        //For actual deployment, use lat, alt, and lng variables
        float hLat = 39, hLng = -75, hAlt = 25;
        final Book book = new Book();
        book.latitude = lat;
        book.longitutde = lng;
        book.altitude = alt;
        book.force_x = x;
        book.force_y = y;
        book.force_y = z;


        if(isEnabled){
            if(Math.abs(x) > 20 && Math.abs(y) > 20 && Math.abs(z) > 20){
            new Network(book, syncano).execute();
            }
        }
    }

    @Override
    public void onAccuracyChanged(Sensor sensor, int accuracy) {

    }
    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        return super.onPrepareOptionsMenu(menu);
    }

    @Override
    public void onLocationChanged(Location location) {
        lat = (float)location.getLatitude();
        lng = (float)location.getLongitude();
        alt = (float)location.getAltitude();
    }

    @Override
    public void onStatusChanged(String provider, int status, Bundle extras) {

    }

    @Override
    public void onProviderEnabled(String provider) {

    }

    @Override
    public void onProviderDisabled(String provider) {

    }
}

Network.java

package com.crash.beacon;

import android.os.AsyncTask;
import android.util.Log;

import com.syncano.library.Syncano;
import com.syncano.library.api.Response;

import java.util.List;

/**
 * Created by Tienvo on 11/8/2015.
 */
public class Network extends AsyncTask<String, Void, String> {
    Book b;
    Syncano syn;
    public Network(Book book, Syncano syncano){
        this.b = book;
        this.syn = syncano;
    }
    @Override
    protected String doInBackground(String... params) {
       //Response<Book> responseCreateObject = syn.createObject(b).send();
        Log.d("code", String.valueOf(Response.CODE_SUCCESS));
        Response<List<Book>> responseGetBooks = syn.createObject(b).send();
        return "Executed";
    }
}

Book.java

package com.crash.beacon;

import com.syncano.library.annotation.SyncanoClass;
import com.syncano.library.annotation.SyncanoField;
import com.syncano.library.data.SyncanoObject;
/**
 * Created by tom on 11/7/15.
 */
@SyncanoClass(name = "ltds")
public class Book extends SyncanoObject{
    public static final String FIELD_LAT = "latitude";
    public static final String FIELD_LNG = "longitude";
    public static final String FIELD_ALT = "altitude";
    public static final String FIELD_X =   "force_x";
    public static final String FIELD_Y =   "force_y";
    public static final String FIELD_Z =   "force_z";

    @SyncanoField(name = FIELD_LAT)
    public float latitude;

    @SyncanoField(name = FIELD_LNG)
    public float longitutde;

    @SyncanoField(name = FIELD_ALT)
    public float altitude;

    @SyncanoField(name = FIELD_X)
    public float force_x;

    @SyncanoField(name = FIELD_Y)
    public float force_y;

    @SyncanoField(name = FIELD_Z)
    public float force_z;


}

Answer 1

这就是您的发送方式。
当您创建一个对象时，您的结果代码应该是 HTTP_CODE_CREATED 201 和响应类型 Response<Book>。下载对象时，您的响应代码应为 HTTP_CODE_SUCCESS 200，响应类型应为 Response<List<Book>>

    @Override
    protected String doInBackground(String... params) {
        // send object to server
        Response<Book> responseCreateObject = syn.createObject(b).send();
        if (responseCreateObject.getHttpResultCode() == Response.HTTP_CODE_CREATED) {
            Log.d(TAG, "Success. Item created.");
        } else {
            Log.d(TAG, "Fail.");
        }

        // get objects from server
        Response<List<Book>> responseGetObjects = syn.getObjects(Book.class).send();
        if (responseGetObjects.getHttpResultCode() == Response.HTTP_CODE_SUCCESS) {
            List<Book> books = responseGetObjects.getData();
            Log.d(TAG, "Success. Items downloaded: " + books.size());
        } else {
            Log.d(TAG, "Fail.");
        }

        return "Executed";
    }

我稍微简化了您的代码，以专注于 Syncano 连接并且它有效！它在您的 Syncano 实例上创建一个对象。

package com.chimeraprime.syncano4libcheck;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.util.Log;
import android.view.View;
import android.widget.Button;

import com.syncano.library.Syncano;
import com.syncano.library.annotation.SyncanoClass;
import com.syncano.library.annotation.SyncanoField;
import com.syncano.library.api.Response;
import com.syncano.library.data.SyncanoObject;

import java.util.List;
import java.util.Random;


public class OtherActivity extends AppCompatActivity {
    private Button btn;
    private Syncano syncano;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_other);

        syncano = new Syncano("<api_key>", "<instance>");
        btn = (Button) findViewById(R.id.crash);
        btn.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {
                Random rnd = new Random();

                Book book = new Book();
                book.latitude = rnd.nextFloat();
                book.longitutde = rnd.nextFloat();
                book.altitude = rnd.nextFloat();
                book.force_x = rnd.nextFloat();
                book.force_y = rnd.nextFloat();
                book.force_y = rnd.nextFloat();

                new Network(book, syncano).execute();
            }
        });
    }


    public static class Network extends AsyncTask<String, Void, String> {
        Book b;
        Syncano syn;
        String TAG = Network.class.getSimpleName();

        public Network(Book book, Syncano syncano) {
            this.b = book;
            this.syn = syncano;
        }

        @Override
        protected String doInBackground(String... params) {
            // send object to server
            Response<Book> responseCreateObject = syn.createObject(b).send();
            if (responseCreateObject.getHttpResultCode() == Response.HTTP_CODE_CREATED) {
                Log.d(TAG, "Success. Item created.");
            } else {
                Log.d(TAG, "Fail.");
            }

            // get objects from server
            Response<List<Book>> responseGetObjects = syn.getObjects(Book.class).send();
            if (responseGetObjects.getHttpResultCode() == Response.HTTP_CODE_SUCCESS) {
                List<Book> books = responseGetObjects.getData();
                Log.d(TAG, "Success. Items downloaded: " + books.size());
            } else {
                Log.d(TAG, "Fail.");
            }

            return "Executed";
        }
    }

    @SyncanoClass(name = "ltds")
    public class Book extends SyncanoObject {
        public static final String FIELD_LAT = "latitude";
        public static final String FIELD_LNG = "longitude";
        public static final String FIELD_ALT = "altitude";
        public static final String FIELD_X = "force_x";
        public static final String FIELD_Y = "force_y";
        public static final String FIELD_Z = "force_z";

        @SyncanoField(name = FIELD_LAT)
        public float latitude;

        @SyncanoField(name = FIELD_LNG)
        public float longitutde;

        @SyncanoField(name = FIELD_ALT)
        public float altitude;

        @SyncanoField(name = FIELD_X)
        public float force_x;

        @SyncanoField(name = FIELD_Y)
        public float force_y;

        @SyncanoField(name = FIELD_Z)
        public float force_z;
    }
}

Android - Syncano SDK 不工作

Android - Syncano SDK not working

java

syncano