Android Open Source - StreetlightSeattleReporter Main Activity

• Back to App/city  ↑

From Project

Back to project page StreetlightSeattleReporter.

License

The source code is released under:

MIT License

Java Source Code

/**
 * The main activity class. The support version is used so that 
 * the app runs successfully on Gingerbread.
 *///from   www .j  a  v  a2s  .c o m
package org.codeforseattle.streetlightseattlereporter;

import java.util.HashMap;
import java.util.List;

import android.location.Criteria;
import android.location.LocationManager;
import android.os.Build;
import android.os.Bundle;
import android.os.Looper;
import android.provider.ContactsContract;
import android.annotation.TargetApi;
import android.support.v4.app.FragmentActivity;
import android.content.ActivityNotFoundException;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.content.pm.ResolveInfo;
import android.content.res.Resources;
import android.database.Cursor;
import android.telephony.PhoneNumberUtils;
import android.telephony.TelephonyManager;
import android.util.Patterns;
import android.view.Menu;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Spinner;
import android.widget.TextView;
import android.widget.Toast;

public class MainActivity extends FragmentActivity 
{
  ToastReceiver mToastReceiver = new ToastReceiver();
  protected final static String TOAST_STR = "org.codeforseattle.streetlightseattlereporter.TOAST_STR";
  AddressReceiver mAddressReceiver = new AddressReceiver();
  protected final static String LOCATION_QUERY_STR = "org.codeforseattle.streetlightseattlereporter.LOCATION_QUERY";
  ResponseReceiver mResponseReceiver = new ResponseReceiver();
  protected final static String SUBMIT_RESPONSE_STR = "org.codeforseattle.streetlightseattlereporter.SUBMIT_RESPONSE";
  LocationManager locationManager = null;
    String provider = null;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    
    initializeGui();
    
        locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
        Criteria criteria = new Criteria();
        criteria.setAccuracy(Criteria.ACCURACY_COARSE); // GPS, Network, others
        criteria.setPowerRequirement(Criteria.POWER_LOW);
        criteria.setAltitudeRequired(false);
        criteria.setBearingRequired(false);
        criteria.setSpeedRequired(false);
        criteria.setCostAllowed(true);
        provider = locationManager.getBestProvider(criteria, true);
  }
  
  @Override
  protected void onResume()
  {
    super.onResume();
    registerReceiver(mToastReceiver, new IntentFilter(TOAST_STR));
    registerReceiver(mAddressReceiver, new IntentFilter(LOCATION_QUERY_STR));
    registerReceiver(mResponseReceiver, new IntentFilter(SUBMIT_RESPONSE_STR));
  }
  
  @Override
  protected void onPause()
  {
    super.onPause();
    unregisterReceiver(mToastReceiver);
    unregisterReceiver(mAddressReceiver);
    unregisterReceiver(mResponseReceiver);
  }

  @Override
  public boolean onCreateOptionsMenu(Menu menu) {
    // Inflate the menu; this adds items to the action bar if it is present.
    getMenuInflater().inflate(R.menu.main, menu);
    return true;
  }
  
  private void initializeGui()
  {
    EditText nameField = (EditText) findViewById(R.id.name_field);
    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH)
    {
      String userName = getUserName();
      if (userName != null)
        nameField.setText(userName);
    }
    EditText phoneField = (EditText) findViewById(R.id.phone_field);
    String line1Number = getDefaultPhoneNumber();
    if (line1Number != null)
      phoneField.setText(line1Number);
    
    PackageManager pm = getPackageManager();
    boolean cameraPresent = pm.hasSystemFeature(PackageManager.FEATURE_CAMERA);
    
    Button scanBtn = (Button) findViewById(R.id.scan_barcode_button);
    if (! cameraPresent) // Do not try bar code scanning without the camera.
      scanBtn.setEnabled(false);
    
    if (Build.VERSION.SDK_INT <= Build.VERSION_CODES.FROYO)
    {
      // The LocationManager.requestSingleUpdate() is available starting in API 9
        Button locationBtn = (Button) findViewById(R.id.get_address_button);
        locationBtn.setEnabled(false);
    }
    
    setFocus();
  }
  
  /**
   * Based on code from http://stackoverflow.com/questions/20360506/get-owner-name-of-an-android-device?lq=1
   * 
   * @return the phone's display name
   */
  @TargetApi(Build.VERSION_CODES.ICE_CREAM_SANDWICH)
  private String getUserName()
  {
    String userName = null;
    Cursor c = getApplication().getContentResolver().query(ContactsContract.Profile.CONTENT_URI, null, null, null, null);
    if (c.getCount() != 0)
    {
      c.moveToFirst();
      userName = c.getString(c.getColumnIndex("display_name"));
    }
    c.close();
    return userName;
  }
  
  /**
   * There is no reliable way to get the phone number. If the phone number is current and stored in 
   * line 1 of the SIM card, this method should return it.
   * 
   * @return the phone number
   */
  private String getDefaultPhoneNumber()
  {
    TelephonyManager mTelephonyMgr = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
    String line1Number = mTelephonyMgr.getLine1Number();
    if (line1Number != null && line1Number.startsWith("1") && line1Number.length() == 11)
    {
      line1Number = line1Number.substring(1);
      String formattedNumber = PhoneNumberUtils.formatNumber(line1Number);
      return formattedNumber;
    }
    return line1Number;
  }
  
  /**
   * Respond to the button click and scan in the bar code.
   * 
   * @param view
   */
  public void onScanBarcodeButtonClick(View view)
    {
        Intent intent = new Intent("com.google.zxing.client.android.SCAN");
        PackageManager packageManager = getPackageManager();
        List<ResolveInfo> activities = packageManager.queryIntentActivities(intent, 0);
        boolean isIntentSafe = activities.size() > 0;
      
        if (!isIntentSafe)
        {
          String title = "Missing ZXing Barcode Scanner";
          String message = "To scan a barcode, please install the ZXing Barcode Scaner app from Google Playstore.";
          boolean isHtml = false;
          boolean displayIntent = true;
          displayDialog(title, message, isHtml, displayIntent);

            // Check again for the necessary scanner.
            activities = packageManager.queryIntentActivities(intent, 0);
            isIntentSafe = activities.size() > 0;
            if (! isIntentSafe)
              return;
        }
        intent.putExtra("SCAN_MODE", "CODE_39"); // Seattle city light poles use Code 39 style bar codes.
      
        try {
          startActivityForResult(intent, 0);   // Start the Barcode Scanner.
        }
        catch (ActivityNotFoundException ex)
        {
          String title = "Caught ActivityNotFoundException";
          String message = "To scan a barcode, please install the ZXing Barcode Scaner app from Google Playstore.";
          boolean isHtml = false;
          boolean displayIntent = true;
          displayDialog(title, message, isHtml, displayIntent);
        }
    }
  
  /**
   * Respond to the button click and attempt to retrieve and display the user's current location.
   * 
   * @param view
   */
  public void onGetAddressButtonClick(View view)
    {
    MyLocationListener myLocationListener = new MyLocationListener(this, locationManager);
    Looper looper = null; // Update will happen on main thread.
      locationManager.requestSingleUpdate(provider, myLocationListener, looper);
      
    EditText poleAddress = (EditText) findViewById(R.id.address_field);
    poleAddress.setText("Locating . . .");
    }
  
  /**
   * After performing the scan, this code places the scan results in the pole number field. Status results, 
   * including the type of bar code found, could be displayed if the status field were put back into the GUI.
   */
  public void onActivityResult(int requestCode, int resultCode, Intent intent)
  {
    if (requestCode == 0)
    {
      // TextView tvStatus = (TextView) findViewById(R.id.tvStatus);
      TextView tvResult = (TextView) findViewById(R.id.pole_number_field);
        
      if (resultCode == RESULT_OK)
      {
        // tvStatus.setText(intent.getStringExtra("SCAN_RESULT_FORMAT"));
        tvResult.setText(intent.getStringExtra("SCAN_RESULT"));
      } 
      else if (resultCode == RESULT_CANCELED)
      {
        // tvStatus.setText("Press a button to start a scan.");
        tvResult.setText("Scan cancelled.");
      }
    }
  }
  
  /**
   * Respond to the button click and clear the form.
   * 
   * @param view
   */
  public void onClearFormButtonClick(View view)
  {
    // Ensure that the keyboard disappears when the button is pressed.
    InputMethodManager inputManager = (InputMethodManager) getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE); 
    inputManager.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS);
    
    boolean clearEmailAddress = true;
    clearForm(clearEmailAddress);
    
    Toast.makeText(MainActivity.this, "Form cleared.", Toast.LENGTH_SHORT).show();
  }
  
  protected void clearForm(boolean clearEmailAddress)
  {
    Resources resources = getResources();
    clearField(R.id.extension_field, resources.getString(R.string.extension_message));
    clearField(R.id.pole_number_field, resources.getString(R.string.pole_number_message));
    clearField(R.id.address_field, resources.getString(R.string.address_message));
    ((Spinner) findViewById(R.id.spinner_problem_type)).setSelection(0);
    clearField(R.id.problem_description_field, resources.getString(R.string.comments_message));
    if (clearEmailAddress)
      clearField(R.id.email_field, resources.getString(R.string.email_message));
    
    setFocus();
  }
  
  private void clearField(int id, String hint)
  {
      EditText field = (EditText)findViewById(id);
      field.setText("");
      field.setHint(hint);
  }
  
  private void setFocus()
  {
    EditText nameField  = (EditText) findViewById(R.id.name_field);
    EditText phoneField = (EditText) findViewById(R.id.phone_field);
    EditText emailField = (EditText) findViewById(R.id.email_field);
    
    if (nameField.getText().toString().trim().equals(""))
      nameField.requestFocus();
    else if (phoneField.getText().toString().trim().equals(""))
      phoneField.requestFocus();
    else if (emailField.getText().toString().trim().equals(""))
      emailField.requestFocus();
    else
      ((EditText) findViewById(R.id.pole_number_field)).requestFocus();
  }
  
  /**
   * Get the text from the fields on the form and put it into a string array.
   * @param view
   */
  public void onSubmitTroubleReportButtonClick(View view)
  {
    // ensure that the keyboard disappears when the button is pressed.
    InputMethodManager inputManager = (InputMethodManager) getApplicationContext().getSystemService(Context.INPUT_METHOD_SERVICE); 
    inputManager.hideSoftInputFromWindow(this.getCurrentFocus().getWindowToken(), InputMethodManager.HIDE_NOT_ALWAYS); 
    
    boolean fieldsValid = validateFields();
    if (! fieldsValid)
      return;

    HashMap<String, String> hashMap = new HashMap<String, String>();
    hashMap.put("LastName", ((EditText) findViewById(R.id.name_field)).getText().toString().trim());
    hashMap.put("Phone",((EditText) findViewById(R.id.phone_field)).getText().toString().trim());
    hashMap.put("PhoneExtension", ((EditText) findViewById(R.id.extension_field)).getText().toString().trim());
    hashMap.put("Email", ((EditText) findViewById(R.id.email_field)).getText().toString().trim());
    hashMap.put("PoleNumber", ((EditText) findViewById(R.id.pole_number_field)).getText().toString().trim());
    hashMap.put("StreetNumber", ((EditText) findViewById(R.id.address_field)).getText().toString().trim());
    hashMap.put("ProblemType", ((Spinner) findViewById(R.id.spinner_problem_type)).getSelectedItem().toString());
    hashMap.put("ProblemDescription", ((EditText) findViewById(R.id.problem_description_field)).getText().toString().trim());
    hashMap.put("SubmitForm", getString(R.string.submit_button));
    
    SubmitService.performHttpPostRequest(this, hashMap);
  }
  
  protected void displayDialog(String title, String message, boolean isHtml, final boolean displayIntent)
  {
    BasicAlertDialogFragment alertDialog = new BasicAlertDialogFragment();
    Bundle args = new Bundle();
    args.putString("title", title);
    args.putString("message", message);
    args.putBoolean("isHtml", isHtml);
    args.putBoolean("displayIntent", displayIntent);
    alertDialog.setArguments(args);
    alertDialog.show(getSupportFragmentManager(), "alert dialog");
  }
  
  private boolean validateFields()
  {
    String message = "";
    String str = ((EditText) findViewById(R.id.name_field)).getText().toString().trim();
    if (str.equals(""))  {
          message += "<p>Include your name.</p>";
    }
    str = ((EditText) findViewById(R.id.phone_field)).getText().toString().trim();
    if (str.equals(""))  {
      message += "<p>Include your phone number.</p>";
    }
    str = ((EditText) findViewById(R.id.email_field)).getText().toString().trim();
    if (str.equals(""))  {
      message += "<p>Enter your email address.</p>";
    }
    else {
      boolean isValidEmailAddress = Patterns.EMAIL_ADDRESS.matcher(str).matches();
      if (! isValidEmailAddress)
        message += "<p>Please correct your email address.</p>";
    }
    str = ((EditText) findViewById(R.id.pole_number_field)).getText().toString().trim();
    if (str.equals(""))  {
      message += "<p>Either scan or enter the 7-digit lamppost identifier.</p>";
    }
    str = ((EditText) findViewById(R.id.address_field)).getText().toString().trim();
    if (str.equals(""))  {
      message += "<p>Note the pole's location.</p>";
    }
    if (message.equals(""))  {
      return true;
    }
    String title = "";
    boolean isHtml = true;
      boolean displayIntent = false;
      displayDialog(title, "<html><body><b>Before submitting your report, please fix these issues:</b>" + 
          message + "</body></html>", isHtml, displayIntent);
      return false;
  }
  
  public class ResponseReceiver extends BroadcastReceiver
  {
    @Override
    public void onReceive (Context context, Intent intent)
    {
      String message = intent.getExtras().getString("message");
      int statusCode = intent.getExtras().getInt("statusCode");
      boolean receivedExpectedResponse = intent.getExtras().getBoolean("receivedExpectedResponse", true);
      
          String title = "Http Response Code " + statusCode;
          if (receivedExpectedResponse)
          {
            title = "Thank You for the Report";
          }
          boolean isHtml = true;
          boolean displayIntent = false;
          displayDialog(title, message, isHtml, displayIntent);
          
          if (receivedExpectedResponse)
          {
            boolean clearEmailAddress = false;
            clearForm(clearEmailAddress);
          }
    }
  }
  
  public class AddressReceiver extends BroadcastReceiver
  {
    @Override
    public void onReceive (Context context, Intent intent)
    {
      String address = intent.getExtras().getString("address");
      
      EditText poleAddress = (EditText) findViewById(R.id.address_field);
      poleAddress.setText(address);
    }
  }
  
  public class ToastReceiver extends BroadcastReceiver
  {
    @Override
    public void onReceive (Context context, Intent intent)
    {
      String toastTest = intent.getExtras().getString("toast");
      
      Toast.makeText(MainActivity.this, toastTest, Toast.LENGTH_SHORT).show();
    }
  }

}

Java Source Code List

• Back to App/city  ↑