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  • I cannot get mlocManager.removeUpdates(mlocListener); to work

    - by Colin
    I have an app that uses the LocationManage functions which works well until the app is stopped or paused. The location listener function is still carrying on in the background. Relevant bits of code follow. When I click home or back the onstop() function is being triggered correctly. package uk.cr.anchor; import android.app.Activity; import android.content.Context; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.media.MediaPlayer; import android.media.RingtoneManager; import android.net.Uri; import android.os.Bundle; import android.view.View; import android.widget.EditText; import android.widget.TableRow; import android.widget.Toast; import android.widget.ToggleButton; import android.content.SharedPreferences; import android.graphics.Color; public class main extends Activity { /** Called when the activity is first created. */ private LocationManager mlocManager; private LocationListener mlocListener; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); LocationManager mlocManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE); LocationListener mlocListener = new MyLocationListener(); mlocManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, 0, 0, mlocListener); } @Override protected void onStop(){ stoplistening(); super.onStop(); } /* Class My Location Listener */ public class MyLocationListener implements LocationListener { @Override public void onLocationChanged(Location loc) { loc.getLatitude(); loc.getLongitude(); etc etc etc } private void stoplistening() { if (mlocManager != null) { Toast.makeText( getApplicationContext(), "kill", Toast.LENGTH_SHORT ).show(); mlocManager.removeUpdates(mlocListener); } else { Toast.makeText( getApplicationContext(), " not kill", Toast.LENGTH_SHORT ).show(); } } } I always get the "not kill" message. Can anyone help me!

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  • Add button to a layout programmatically

    - by mmmbaileys
    I'm having trouble adding a button to a layout that I've created in XML. Here's what I want to achieve: //some class else { startActivity(new Intent(StatisticsScreen.this, ScreenTemperature.class)); } //// //ScreenTemperatureClass @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); //this is where I call another class that //displays a nice graph setContentView(new GraphTemperature(getApplicationContext())); } I want to add a Button to this new screen so that it'll appear below the graph. I've tried creating a LinearLayout view, then create a Button and add it to this view but I just get NullPointerExceptions.. Any help would be appreciated. Thanks EDIT#1 Here's what I've tried using that created a NullPointerException and 'force close': Button buybutton; LinearLayout layout; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(new GraphTemperature(getApplicationContext())); layout = (LinearLayout) findViewById(R.id.statsviewlayout); Button buyButton = new Button(this); buyButton.setText(R.string.button_back); buyButton.setLayoutParams(new LayoutParams( ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)); layout.addView(buyButton); } And here's the logcat error: ERROR/AndroidRuntime(293): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.weatherapp/com.weatherapp.ScreenTemperature}: java.lang.NullPointerException ERROR/AndroidRuntime(293): at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2663) ERROR/AndroidRuntime(293): at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) ERROR/AndroidRuntime(293): at android.app.ActivityThread.access$2300(ActivityThread.java:125) ERROR/AndroidRuntime(293): at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) theres abviously more lines to do with this error in logcat, not sure if you want it? EDIT#2 So i tried bhups method: @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); GraphTemperature GT = new GraphTemperature(getApplicationContext()); layout = (LinearLayout) findViewById(R.id.statsviewlayout); Button buyButton = new Button(this); buyButton.setText(R.string.button_back); buyButton.setLayoutParams(new LayoutParams( ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)); layout.addView(GT); // line 27 layout.addView(buyButton); setContentView(layout); } This method produced the same logcat error as above, NullPointerException, indicating it was something to do with line no. 27 which is the layout.addView line of code. Any ideas? Thanks again

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  • What's the (memory) footprint of a J2EE servlet?

    - by Amr Mostafa
    For Jetty, Tomcat, or any other servlet container of your choice, what's the average footprint (memory, and any other notable resources) of a basic servlet? This includes any other basic objects that you almost always need per servlet, such as a view resolver. I'm not looking for a quantitative number in particular, but any indicative answer that could give an idea of how "heavy" or "lightweight" a servlet is. Thanks in advance

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  • drupal views block arguments

    - by slimcady
    I currently have a view (Drupal 6 using Views2) that properly aggregates a custom content type (videos) and filters them for a page display. When I create a block display, it previews the results in live preview just great, but when i go to the page expecting to see the block it doesn't appear. I'm fairly certain the argument I'm attempting to pass it fails because when I select "Display all results" for "Action to take if argument does not validate:" the block shows up on the page just fine. Any advice definitely appreciated.

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  • issue of hide uipickerview in iphone

    - by M007
    I want to display UIPickerView with UIToolBar on the top of pickerView with done and cancel button.Attached is the screen shot for the same.I also have tab bar controller in bottom side of view and I want to display pickerView over bottom bar thats why I am using uipickerView inside of actionsheet.Now my issue is how to dismiss that pickerView on cancelButton click which is added in UIActionSheet? Following is the function to display pickerView : -(IBAction)setMile:(id)sender { menu = [[UIActionSheet alloc] initWithTitle:nil delegate:self cancelButtonTitle:nil destructiveButtonTitle:nil otherButtonTitles:nil]; // Add the picker UIPickerView *pickerView = [[UIPickerView alloc] initWithFrame:CGRectMake(0,55,0,0)]; pickerView.delegate = self; pickerView.showsSelectionIndicator = YES; // note this is default to NO UIToolbar *pickerToolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0,0,320,44)]; pickerToolbar.barStyle = UIBarStyleBlackOpaque; [pickerToolbar sizeToFit]; NSMutableArray *barItems = [[NSMutableArray alloc] init]; UIBarButtonItem *cancelBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemCancel target:self action:@selector(setMileCancel:)]; [barItems addObject:cancelBtn]; [cancelBtn release]; cancelBtn=nil; UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil]; [barItems addObject:flexSpace]; [flexSpace release]; flexSpace=nil; UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(setMileDone:)]; [barItems addObject:doneBtn]; [doneBtn release]; doneBtn=nil; [pickerToolbar setItems:barItems animated:YES]; [barItems release]; barItems=nil; [menu addSubview:pickerToolbar]; [menu addSubview:pickerView]; [menu showInView:self.view]; //[menu showFromTabBar:[[self tabBarController] tabBar]]; this code is not working [menu setBounds:CGRectMake(0,0,320, 545)]; [pickerView release]; [menu release]; pickerView=nil; menu=nil; } I have following code on cancel button click -(IBAction)setMileCancel:(id)sender { //[menu removeFromSuperview]; [menu dismissWithClickedButtonIndex:0 animated:YES]; }

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  • Cancel onKey Event from onKey method

    - by user244190
    Is it possible to cancel an event from within the onKey method. I only want to allow numbers 0 through 9. If another key was pressed then I want to cancel the key press public boolean onKey(View v, int keyCode, KeyEvent ev) { // TODO Auto-generated method stub if(keyCode <30 || keyCode > 39){ //Cancel Event } return false; }

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  • In-app settings controlled by plist?

    - by cannyboy
    Is there a library or good tutorial which covers creating in-app settings, like this: http://img.skitch.com/20090625-s8bf6ahybwe3cesd1id38h3nt.jpg What I would like is if it: doesn't use the built-in Settings app is controlled by a plist file with various Dictionaries and Arrays creates a nice looking table view allows text fields as well as switches and sliders and ticks etc doesn't have any of the annoying problems I've come across when trying to build my own version (not scrolling to show the textfield, cells disappearing) It would appear that the iphone dev world is crying out for such a thing. THANK YOU!

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  • Asp.Net MVC Error Handling & logging

    - by Navish Rampal
    I am trying to Catch exceptions and log it. Presently I have written a Utility method and Passing the Exception to it in the catch block and finally logging the application using MS Enterprise Library 4.0. I want to know is there any other better way to log errors. Show exception message in the same view for some type of exceptions for rest navigate to error page. If someone can help me on this! Navish

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  • Can I get memory usage of processes running on the monitored server by newrelic REST API

    - by youlin
    according to the newrelic faq https://docs.newrelic.com/docs/server/server-monitor-faq, The Server Monitoring agent can report Top 20 processes that are using significant memory or I/O and I can view the memory usage of the processes on the newrelic portal page. However, I do not find any clue about how to get this metrics by newrelic REST API (I can get the CPU usage of processes by REST API). Is it possible to do this?

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  • DataBind DataSource Result to ASP Labels

    - by Steven
    I have an AccessDataSource TestSummaryADS. I can easily view the results in a GridView or DropDownList by setting its DataSourceID property. How do I bind a value from the results TestSummaryADS to the text of a label? I'm just trying to populate labels on my page with results from the DB entry. C# or VB.NET answers okay.

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