I would like to know how to dynamically change the my option menu items status from disable to enabled.at first all my menu items are set to disabled and when click the menu key , they are shown as gray and disabled.when my other task finished, i want to enable all the menu items, change them from gray to dark color from the screen.do you know how can i implement this?
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I need to enable a MenuItem when a previous screen (Activity) returns. I tried this code:
...
((MenuItem)findViewById(R.id.menu_how)).setEnabled(true);
...
but a null pointer exception is launched. BTW, the menu_how is set to false in xml; and the code is part of onActivityResult(int requestCode, int resultCode, Intent data) call.
In one of my applications I am dynamically enabling the GPS system setting based on a user's request. My problem is that I also have a LocationListener which doesn't pick up this change. If the device is restarted or the system settings Activity is brought up the LocationListener kicks in -- the onProviderEnabled() method is called. So.. it seems pretty obvious that I'm not notifying the system correctly of my changes. I have tried sending a broadcast from both the normal context and the application context. I thought this would be fairly straight forward, but it has proven to be rather frustrating. I put together a small test activity to demonstrate my problem.
Here is my test Activity: package com.example;
import android.app.Activity; import android.content.Context;
import android.content.Intent; import android.location.Location;
import android.location.LocationListener; import android.location.LocationManager;
import android.os.Bundle; import android.provider.Settings; import android.util.Log;
public class TestActivity extends Activity {
LocationListener locListener; LocationManager locManager;
@Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState);
setContentView(R.layout.test_activity); locListener = new MyLocationListener();
locManager = (LocationManager)getSystemService (Context.LOCATION_SERVICE);
locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, locListener);
if(!locManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
Settings.System.putString(getContentResolver (),
Settings.System.LOCATION_PROVIDERS_ALLOWED, LocationManager.GPS_PROVIDER);
Intent intent = new Intent(Intent.ACTION_PROVIDER_CHANGED);
sendBroadcast(intent); } }
private class MyLocationListener implements LocationListener {
public MyLocationListener() { Log.d("test", "MyLocationListener()");
} public void onLocationChanged(Location loc) {
Log.d("test", loc.getLatitude() + "/" + loc.getLongitude());
} public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub Log.d("test", "*** onProviderDisabled (" + provider + ") ***");
} public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub Log.d("test", "*** onProviderEnabled (" + provider + ") ***");
} public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub Log.d("test", "*** onStatusChanged ***");
Log.d("test", "provider = " + provider + " status = " + status);
} } }
We would like to enable or disable widgets via code. When we say "disable" we mean that a widget which is registered in an application should not show up in the list of widgets available to the user when they try to add a widget to their home screen. This question has been asked, unfortunately, many times without answer. There was one response by Dianne Hackborn to a separate widget question which suggested that it was possible to use the package manager to disable widgets.
View 2 Replies View RelatedWe would like to enable or disable widgets via code. When we say "disable" we mean that a widget which is registered in an application should not show up in the list of widgets available to the user when they try to add a widget to their home screen. This question has been asked, unfortunately, many times without
answer.
standard four option menus displays 2 by 2. but i want to know that How to arrange 4 by 1. I just want to custom option menu like that. You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscribe@googlegroups.com For more options
View 2 Replies View RelatedI want custom option menu to arrange three menu items where 2 menu items are displayed at the top and the third below it. Just as the following layout...........
View 12 Replies View RelatedI'm trying to add custom menu items in a WebView Context Menu. Unfortunately, my items are shown in the menu of the first web page I load , but then if I load a second page, a long press only shows the standard context menu items. Mine are gone. I've put a Toast inside the code and it is displayed as well on the first loaded page, but not on the second. I'm using the code below:..............
View 6 Replies View Relatedwe have an XML file placed in the res/xml folder containing our preferences.
Is it possible at runtime to add new items to the preferences.
Example:
The user starts the app and the preferences consists of:
America
- New York - Los Angeles - Chicago
Where all the cities are CheckBoxPreferences.
Then the user performs some actions in the application and this triggers that two new cities are added to the preferences:
America
- New York - Los Angeles - Chicago - Seatlle - Washington
Anyone that know if it possible at all and how to do it?
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In an application I have a Spinner that has tens of items.When the user taps on the spinner, a popup dialog appears that shows the list of possible selections. However, since there are (sorted) tens of items, I want the user to be able to use the fast-scroll thumb (like fastScrollEnabled attribute on ListView), similar to the one enabled in Contacts application.I tried to get the ListView that is used in that pop-up dialog, but I didn't find any methods to do that.
View 1 Replies View RelatedIm using a custom listView with a Title and a Subtitle where you can read a brief explanation of the item.
For each item on the list, im displaying an alertDialog to select an option (different for each case). When the option is selected, i want to change the Subtitle for the option selected by the user.
This is what i tried:
CODE:.....................
For the first item on the list it works fine, when i select an option, the subtitle get replaced by that option, but when i make a selection in the alertDialogs of the other 2 items, the option selected replaces the subtitle of the first item!
How to add items to the spinner dynamically in android?
View 1 Replies View RelatedI have an Absolute Layout with two buttons on top, a Text View of fixed size in the middle and List View as the rest of the Layout.
I want to use the top left button to add a list view item to the existing list and the top right button to remove the last item from the list. The List is layed out properly when the App starts, but as soon as any of the two buttons is pressed, the Activity Force Closes.
Here is the code:..................
how to dynamically add/remove items to a ListView and display it? how to put a list of items (that can be clicked), and put a list of CheckBoxes?
View 1 Replies View RelatedHow do I set the intent of menu items defined in an Android menu xml file? For example I currently have...
<menu xmlns:android="http://schemas.android.com/apk/res/android" android:name="Main Menu">
<item android:title="@string/resume_game" android:icon="@drawable/resume"></item>
<item android:title="@string/play_golf" android:icon="@drawable/play_golf"></item>
<item android:title="@string/my_rounds" android:icon="@drawable/my_rounds"></item>
</menu>...........
I am trying to build inflate a context menu within the sample Grid View provided on the Android dev site. Eclipse tells me that the referenced items cannot be resolved, if someone could help find where I coded s.th. wrong, that would be great because I am stuck at the moment. Thanks. I posted my entire code below. I get the error message at: if (item.get Item Id() R.id.menu_face book) and the other R.id.
View 2 Replies View RelatedIs there anyway to hide menu items? Things like Email or IM that I don't use and don't care to see.
View 4 Replies View RelatedThere are a few items on my menu that I don't want there. I know I can uninstall the ones I have downloaded and installed but how do I remove some of the others that are do not have the option to uninstall. I don't really want to uninstall them I just want them moved from the menu. Items such as the Desk Clock, Talk, Teeter and others.
View 7 Replies View RelatedI need to have a "Exit" menu items in my application,My question here is how can i just exit the app,Please throw some light on this is that possible in android if yes then how.
View 10 Replies View RelatedI want to customize option menu items. I can change icon when selecting using a selector but how can i change the text color during selection. If it was TextView i could use again selector for textColor property but for menu items there is only resource for textValue not for textColor. So my question is how can i change the textColor of MenuItems on selection.
View 6 Replies View RelatedI have a problem with showing icons for menu items. The items which appear when I click on menu button are having icons but When I click on "More" option in Menu, The newly shown menu items are not having any icons even though I have set the icons for these items in my xml.
View 3 Replies View RelatedI have created an option menu which also has a sub menu. In the sub menu I have a setting for enabling/disabling images in my application based on the application level flag that i change based on the option being clicked.What I am observing is that when i click on the "Menu" and change the settings from enable Images to disable Images. its not reflecting.I have put the debug log and what have been seen is the onOptionCreateMenu method is getting called only one time- first time when i click the "Menu" button. That is the reason the changed sub menu is not getting reflected.My question is that is there a way i can re-create the option menu every time user presses the "Menu Button".
View 3 Replies View RelatedI would like to arrange the menu items in my app so that one item appears in its own line, and the other 3 items appear below it.I know that this is possible because i have seen apps do it.I tried writing a menu xml with linear layouts to arrange the items, but this doesn't work.I have also tried putting them in different groups,but I had no luck with that either.I know that this is possible:i have seen it done.Anyone have any ideas?
View 1 Replies View RelatedI guess this one is too advanced for the beginner's group, so I'll ask it here:
View 3 Replies View RelatedHow to add menu items in separate rows?When I press menu button onPrepareOptionsMenu callback will be get called. In that I am doing menu.add.All the items are coming in one row.I want few items in one row and other items in another row.How to do that? Please help me.
View 2 Replies View RelatedI have a usecase scenario to implement:
I want to grayout one of the items in the menu in some usecase(I don't want to disbale it fully) . When user clicks on it, I want to show a Toast saying "This option is not available now"
I guess if we use item.disabled(true), we can't handle onClick events...
Anyone knows if this can be done...
Is it possible to add custom menu items in the native Contact list ?
I mean when the user selects a user from his contact list, is it possible to add a custom action there ? ( for those who are familiar with Blackberry development, something similar to the MenuItem class )
Is it possible to add custom menu items to the native Contacts app or even to the Call Log?
View 2 Replies View RelatedHow to Remove Items from the Share Menu?
View 2 Replies View RelatedI've got this piece of code from an xml in my settings.apk (SecSettings actually) that contains tutorials on motion settings.
Code:
<?xml version="1.0" encoding="utf-8"?>
<PreferenceScreen android:title="@string/motion_tutorial_settings_title" android:key="parent"
xmlns:android="http://schemas.android.com/apk/res/android">
<Preference android:title="@string/turn_over_title" android:key="turn_over" android:summary="@string/turn_over_summary" />
[Code] ......
In there, all the red parts contain tutorials on settings that don't actually work on my device, and for OCD sake, I don't want them appearing in my settings because of it. But simply cutting them out of that file will make the settings app crash whenever i open that menu
So question is: is there a way to hide these settings without impairing their functions?