Android Open Source - AndroidDev G P S Pos Activity






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License

The source code is released under:

GNU General Public License

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Java Source Code

package nl.rhoek.mygpspos;
/*from w w w. java2  s  . c o  m*/
import java.text.DecimalFormat;
import java.util.Timer;
import java.util.TimerTask;

import nl.rhoek.mygpspos.util.SystemUiHider;

import android.annotation.TargetApi;
import android.app.Activity;
import android.location.Location;
import android.os.Build;
import android.os.Bundle;
import android.os.Handler;
import android.text.format.Time;
import android.view.MotionEvent;
import android.view.View;
import android.widget.RadioButton;
import android.widget.TextView;

/**
 * An example full-screen activity that shows and hides the system UI (i.e.
 * status bar and navigation/system bar) with user interaction.
 * 
 * @see SystemUiHider
 */
public class GPSPosActivity extends Activity {
  /**
   * Whether or not the system UI should be auto-hidden after
   * {@link #AUTO_HIDE_DELAY_MILLIS} milliseconds.
   */
  private static final boolean AUTO_HIDE = true;

  /**
   * If {@link #AUTO_HIDE} is set, the number of milliseconds to wait after
   * user interaction before hiding the system UI.
   */
  private static final int AUTO_HIDE_DELAY_MILLIS = 3000;

  /**
   * If set, will toggle the system UI visibility upon interaction. Otherwise,
   * will show the system UI visibility upon interaction.
   */
  private static final boolean TOGGLE_ON_CLICK = true;

  /**
   * The flags to pass to {@link SystemUiHider#getInstance}.
   */
  private static final int HIDER_FLAGS = SystemUiHider.FLAG_HIDE_NAVIGATION;

  /**
   * The instance of the {@link SystemUiHider} for this activity.
   */
  private SystemUiHider mSystemUiHider;
  
  /**
   * Own code: 
   * - GPS tracker
   * - start time
   */
  private GPSTracker gps;
  private long starttime = 0;
  
  /**
   * Own code: update TextView with GPS location en time
   * @param location
   */
  public void ShowGPSLocation(Location location) {
    TextView t = (TextView) findViewById(R.id.fullscreen_content);
    Time time = new Time(Time.getCurrentTimezone());
    time.setToNow();
    DecimalFormat df = new DecimalFormat("0.00000");
    
    if(location == null){
      t.setText(time.format("%Y:%m:%d") + "\n" + time.format("%H:%M:%S") + "\n\n" + "<no location>");
    } else {
      Time fixtime = new Time(Time.getCurrentTimezone());
      fixtime.set(location.getTime());
      t.setText(time.format("%Y:%m:%d %H:%M:%S") + "\n" + 
            "\nLONG: " + df.format(location.getLongitude())  + 
            "\nLAT: " + df.format(location.getLatitude())  +
            "\n" + fixtime.format("%H:%M:%S") );
    }
  }
  
  private void updateGPSStatus() {
    RadioButton rb = (RadioButton)findViewById(R.id.rbGPSStatus);
    rb.setChecked(!rb.isChecked());
    
    TextView tvGPSStatus = (TextView) findViewById(R.id.txtGPSStatus);
    if(gps.getStatus() == null || gps.getStatus().getTimeToFirstFix() <= 0) {
      long millis = System.currentTimeMillis() - starttime;
      int seconds = (int) (millis / 1000);
      int minutes = seconds / 60;
      seconds     = seconds % 60;
      tvGPSStatus.setText(String.format("No status: %d:%02d", minutes, seconds));
    } else {
      Time fixtime = new Time(Time.getCurrentTimezone());
      fixtime.set(gps.getStatus().getTimeToFirstFix());
      tvGPSStatus.setText(String.format("FixTime: %s.%d, Satelites: %d", fixtime.format("%M:%S"), gps.getStatus().getTimeToFirstFix() - fixtime.toMillis(false), gps.getStatus().getMaxSatellites()));
    }
  }
  
  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    setContentView(R.layout.activity_gpspos);
        
    final View controlsView = findViewById(R.id.fullscreen_content_controls);
    final View contentView = findViewById(R.id.fullscreen_content);

    // Set up an instance of SystemUiHider to control the system UI for
    // this activity.
    mSystemUiHider = SystemUiHider.getInstance(this, contentView, HIDER_FLAGS);
    mSystemUiHider.setup();
    mSystemUiHider.setOnVisibilityChangeListener(new SystemUiHider.OnVisibilityChangeListener() {
          // Cached values.
          int mControlsHeight;
          int mShortAnimTime;

          @Override
          @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
          public void onVisibilityChange(boolean visible) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
              // If the ViewPropertyAnimator API is available
              // (Honeycomb MR2 and later), use it to animate the
              // in-layout UI controls at the bottom of the
              // screen.
              if (mControlsHeight == 0) {
                mControlsHeight = controlsView.getHeight();
              }
              if (mShortAnimTime == 0) {
                mShortAnimTime = getResources().getInteger(
                    android.R.integer.config_shortAnimTime);
              }
              controlsView
                  .animate()
                  .translationY(visible ? 0 : mControlsHeight)
                  .setDuration(mShortAnimTime);
            } else {
              // If the ViewPropertyAnimator APIs aren't
              // available, simply show or hide the in-layout UI
              // controls.
              controlsView.setVisibility(visible ? View.VISIBLE
                  : View.GONE);
            }

            if (visible && AUTO_HIDE) {
              // Schedule a hide().
              delayedHide(AUTO_HIDE_DELAY_MILLIS);
            }
          }
        });

    // Set up the user interaction to manually show or hide the system UI.
    contentView.setOnClickListener(new View.OnClickListener() {
      @Override
      public void onClick(View view) {
        if (TOGGLE_ON_CLICK) {
          mSystemUiHider.toggle();
        } else {
          mSystemUiHider.show();
        }
      }
    });

    // Upon interacting with UI controls, delay any scheduled hide()
    // operations to prevent the jarring behavior of controls going away
    // while interacting with the UI.
    findViewById(R.id.refresh_button).setOnTouchListener(mDelayHideTouchListener);
    
    /**
     * OWN CODE
     */
    
    starttime = System.currentTimeMillis();
    
    // create GPS tracker
    gps = new GPSTracker(this);    
    
    // connect event for manual refresh
    findViewById(R.id.refresh_button).setOnClickListener(
        new View.OnClickListener() {        
          @Override
          public void onClick(View v) {
            // Manual refresh!
            if(gps.canGetLocation()){ // gps enabled ?
              ShowGPSLocation(gps.getLocation());  
            } else {
              gps.showSettingsAlert();
            }
          }
        });
    
    // get initial location (if any)
    ShowGPSLocation(gps.getLocation());
    
    // timer to update GPS status text
    Timer timer = new Timer();
    timer.schedule(new TimerTask() {
            @Override
            public void run() {
          GPSPosActivity.this.runOnUiThread(new Runnable() {
                @Override
                public void run() {
                  GPSPosActivity.this.updateGPSStatus();
                }
              });              
            }
      }, 0, 1000); // every second (1000 msec)  
    
    // Check location services
    if(!gps.canGetLocation()){ // gps enabled ?
      gps.showSettingsAlert();
    }
  }

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

    // Trigger the initial hide() shortly after the activity has been
    // created, to briefly hint to the user that UI controls
    // are available.
    delayedHide(100);
  }

  /**
   * Touch listener to use for in-layout UI controls to delay hiding the
   * system UI. This is to prevent the jarring behavior of controls going away
   * while interacting with activity UI.
   */
  View.OnTouchListener mDelayHideTouchListener = new View.OnTouchListener() {
    @Override
    public boolean onTouch(View view, MotionEvent motionEvent) {
      if (AUTO_HIDE) {
        delayedHide(AUTO_HIDE_DELAY_MILLIS);
      }
      return false;
    }
  };

  Handler mHideHandler = new Handler();
  Runnable mHideRunnable = new Runnable() {
    @Override
    public void run() {
      mSystemUiHider.hide();
    }
  };

  /**
   * Schedules a call to hide() in [delay] milliseconds, canceling any
   * previously scheduled calls.
   */
  private void delayedHide(int delayMillis) {
    mHideHandler.removeCallbacks(mHideRunnable);
    mHideHandler.postDelayed(mHideRunnable, delayMillis);
  }
}




Java Source Code List

nl.componentagro.feedparser.BaseFeedParser.java
nl.componentagro.feedparser.FeedParser.java
nl.componentagro.feedparser.ImageRef.java
nl.componentagro.feedparser.Message.java
nl.componentagro.feedparser.XmlPullFeedParser.java
nl.componentagro.kbreader.CAKennisbankLezerActivity.java
nl.rhoek.mygpspos.GPSPosActivity.java
nl.rhoek.mygpspos.GPSTracker.java
nl.rhoek.mygpspos.util.SystemUiHiderBase.java
nl.rhoek.mygpspos.util.SystemUiHiderHoneycomb.java
nl.rhoek.mygpspos.util.SystemUiHider.java
nl.ronaldhoek.helloandroid.HelloAndroid.java
org.developerworks.android.AndroidSaxFeedParser.java
org.developerworks.android.BaseFeedParser.java
org.developerworks.android.DomFeedParser.java
org.developerworks.android.FeedParserFactory.java
org.developerworks.android.FeedParser.java
org.developerworks.android.MessageList.java
org.developerworks.android.Message.java
org.developerworks.android.ParserType.java
org.developerworks.android.RssHandler.java
org.developerworks.android.SaxFeedParser.java
org.developerworks.android.XmlPullFeedParser.java