Android Open Source - carv-hackmeat Main Activity

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Back to project page carv-hackmeat.

License

The source code is released under:

MIT License

Java Source Code

package com.wubbahed.hackmeat;
//from  ww w . j  av  a  2s . c o  m
import java.util.HashMap;
import java.util.Iterator;

import java.nio.ByteBuffer;

import com.parse.Parse;
import com.parse.ParseObject;
import com.parse.PushService;

import android.hardware.usb.UsbDevice;
import android.hardware.usb.UsbDeviceConnection;
import android.hardware.usb.UsbEndpoint;
import android.hardware.usb.UsbInterface;
import android.hardware.usb.UsbManager;
import android.hardware.usb.UsbRequest;
import android.os.Bundle;
import android.os.Handler;
import android.os.PowerManager;
import android.app.Activity;
import android.content.Context;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends Activity {

  private UsbScale mScale;
  private UsbDevice mDevice;
  private UsbManager mUsbManager;
  private UsbEndpoint mEndpoint;
  private UsbDeviceConnection mConnection;
  
  private PowerManager.WakeLock wl;
  
  private int units = 0;
  private int value = 0;
  
  
  private Handler mHandler = new Handler();
  
  private Runnable mUpdateWeight = new Runnable() {
    public void run() {
      executeUsbCommand(0);
      mHandler.postDelayed(this, 100);
    }
  };
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    Parse.initialize(this, "<put your key here>", "<put your key here>"); 
    initButtons();
    initUsb();
    updateVisuals();
  }


  public void onResume() {
    super.onResume();
    getUsbDevice();
    mHandler.postDelayed(mUpdateWeight, 100);
    PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);
    wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "My Tag");
     wl.acquire();

  }
  
  public void onPause() {
    super.onPause();
    //mHandler.removeCallbacks(mUpdateWeight);
    if (wl != null) {
       wl.release();
       wl = null;
    }
  }

  private void initButtons() {
    
    Button b = (Button) findViewById(R.id.button1);
    b.setOnClickListener(new OnClickListener() {
      public void onClick(View v) {
        postToParse("ground_beef");
      }
    });
    
    b = (Button) findViewById(R.id.button2);
    b.setOnClickListener(new OnClickListener() {
      public void onClick(View v) {
        postToParse("ribeye");
      }
    });
    
    b = (Button) findViewById(R.id.button3);
    b.setOnClickListener(new OnClickListener() {
      public void onClick(View v) {
        postToParse("london_broil");
      }
    });
    
    b = (Button) findViewById(R.id.button4);
    b.setOnClickListener(new OnClickListener() {
      public void onClick(View v) {
        postToParse("top_round");
      }
    });
    
  }
  
  
  public void initUsb() {
    mUsbManager = (UsbManager) getSystemService(Context.USB_SERVICE);
    mScale = new UsbScale();
  }
  
  public void getUsbDevice() {
    
    //Log.d("findingDevices", " - wubbahed");
    HashMap<String, UsbDevice> deviceList = mUsbManager.getDeviceList();
    Iterator<UsbDevice> deviceIterator = deviceList.values().iterator();
    while (deviceIterator.hasNext()) {

        mDevice = deviceIterator.next();
        // your code
        
        Log.d("deviceName", mDevice.getDeviceName() + " - wubbahed");
        Log.d("deviceId", mDevice.getDeviceId() + " - wubbahed");
        Log.d("deviceInterfaceCount", mDevice.getInterfaceCount()
            + " - wubbahed");
        Log.d("deviceClass", mDevice.getDeviceClass() + " - wubbahed");
        Log
            .d("deviceProductId", mDevice.getProductId()
                + " - wubbahed");
        Log.d("deviceVendorId", mDevice.getVendorId() + " - wubbahed");

        UsbInterface iFace = mDevice.getInterface(0);
        Log.d("interfaceToString", iFace.toString() + " - wubbahed");

        int endpointCount = iFace.getEndpointCount();
        for (int i = 0; i < endpointCount; i++) {
          mEndpoint = iFace.getEndpoint(i);
          Log.d("endpoint", mEndpoint.toString() + " - wubbahed");
          Log.d("endpointDirection", mEndpoint.getDirection()
              + " - wubbahed");
          Log.d("endpointType", mEndpoint.getType() + " - wubbahed");
        }

        mConnection = mUsbManager.openDevice(mDevice);
        mConnection.claimInterface(iFace, true);      

    }       

  }
  
  public void postToParse(String cut) {

    double amt = value / 160.0;
    
    ParseObject testItem = new ParseObject("MeatItem");
    testItem.put("cut_name", cut);
    testItem.put("lot_number", "1209");
    testItem.put("usda_plant_number", 43495);
    testItem.put("weight_amt", amt);
    testItem.put("weight_unit", "pounds");
    testItem.saveInBackground();
  }
  
  public void executeUsbCommand(int id) {
    
    if (mConnection != null) {
      
     ByteBuffer buffer = ByteBuffer.allocate(8);
       UsbRequest request = new UsbRequest();
       request.initialize(mConnection, mEndpoint);
       request.queue(buffer, 8);
          
       
              int result = mConnection.controlTransfer(mScale.REQUEST_TYPE, mScale.REQUEST, mScale.VALUE, mScale.INDEX, mScale.message, mScale.message.length, 0);
              //Log.d("result", result + " - wubbahed");
              if (mConnection.requestWait() == request) {

          int[] measurement = mScale.getWeight(buffer);
          
          units = measurement[0];
          value = measurement[1];
          
          String data = "";
          
          if (units == 11) {
            
            if (value > 160) {
              int pounds = (value - (value % 160)) / 160;
              String ounces = String.format("%.1f", (value%160)*0.1);
              data = pounds + " lbs " + ounces + " oz";
            } else {

              String ounces = String.format("%.1f", value*0.1);
              data = ounces + " oz";
            }
          } else if (units == 2) {
            data = value + " g";
          }
          
                TextView t = (TextView) findViewById(R.id.textView1);
                t.setText(data);

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

    
    return true;
  }

  
}

Java Source Code List

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