I'm using hierarchyviewer to look through a widget that I'm using. (TimePicker).
Now I can see that TimePicker contains id/decrement, id/increment and id/timepicker_input.
How do I get a reference to id/timepicker_input for example?
Tried my_picker.findViewWithTag("decrement"); but that returns null.
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I have built a widget that contains a button and an editable TextView (that behaves like an EditText) much like the native Google Search bar widget. How can I access the text that the user has typed into the TextView? In an Activity I would just use findViewById(), but of course I can't do that in the AppWidgetProvider. (I get the error message "The method findViewById(int) is undefined for the type Widget.") So I tried to solve it by using a million casts, like so: String str = (String) ((TextView)((Activity) context).findViewById(R.id.txt_input)).getText(); Unfortunately, with that line present my app crashes. What is the correct way to get references to those Widget elements? I've read all about RemoteViews and Widgets and looked for examples where somebody does this (which seems like it would be common, but I guess not) but I haven't turned up a solution. What am I missing?.....
View 8 Replies View RelatedI'm looking for a way to access the Corporate Calendar information/ database on the Droid. I know it can be done since I have seen a few folks promote supporting being able to read this information, but have found zero info on it. how to read this?
View 5 Replies View RelatedI would like to know whether there is a way to insert/inject a <string> element defined in an XML file into another <string> element, doing that just with XML.
For example I could have:
<string name="author">Francesco</string>`
and I am looking for something like:
<string name="about_application">Author: @string/author</string>`
so that getString(R.string.about_application) would result in "Author: Francesco".
I know that I could combine the two elements in Java code using String.format(string, formatArgs)like for example:
<string name="author">Francesco</string>
<string name="about_application">Author: %1$s</string>`
and then in code use
String.format(getString(R.string.about_application), getString(R.string.author))
but I would like to do it in XML directly. Can anyone suggest me a way to do it?
I'm sure there's a simple answer to this, but...Why can't I nest another view type within a View element? In my layout file I try:
CODE:...
And this gives me a ClassCastException. Why?
I have an ArrayAdapter in my activity, and when a certain event occur, I'd like to make a specific element flash, or have it highlighted in some way for a couple of seconds. Is there a way to do that?
View 11 Replies View RelatedI have a TabActivity with two tabs-activities — FirstActivity and SecondActivity.
How can I access to any element (for example, change TextView's text) on FirstActivity from SecondActivity?
In the application I am working on now I came up with the following problem. I have list view which is displaying items with images in most cases it will be different image for different items (thumbnails about 60x60 pixels). So the problem is how can I handle image processing for the view. For know I have the following variants:
1. I can cache all bitmaps and when I try to display view I get bitmap from cache synchronously and display it. The problem is that 60x60=3600x4=14kb per bitmap which is waste of resources.
2. When I need to display view I can register event to some thread to decode the associated bitmap which will decode it in background and than to update gui. This sounds good for me the scrolling is still smooth because all image processing is done in background. Updating list view is bit jerky for now I am doing it view notifyDataSetChanged which is updating all visible views although I can update thumbnail for a single item.
So question one is is there better way the update single listview element than calling notifyDataSetChanged.
I am getting a parsing error and I do not know why (I am new to programing). Because of this error, R.java disappears and I end up having more errors. Hopefully someone can help me out. Here is where the error comes from: list.xml. Code...
View 2 Replies View RelatedI dropped the following into the drawable directory in my Android 1.5 project: Code...
View 1 Replies View RelatedI'm trying to scroll my ListView (from an Activity) to a particular element in the list. I know it's position in the list. How is this possible?
View 4 Replies View RelatedI added some UI elements to the main.xml file in the reslayout folder and when I try to access them through the call, R . layout. my _ uielement, the UI element that I created is not there. Even when I add a new xml file with UI elements, it still doesn't show up in the R.layout class. I have made checked the ids on them and they have the correct format (I think): android:id="@+id/my_button". What could be the problem? Do I need to compile the code first? UPDATE: I have already tried adb kill-server then adb start-server. It doesn't seem to help. I have also tried R.id.my_uielement, it doesn't register either.
View 2 Replies View RelatedI'm loading a URL into a WebView and I'm having difficulty setting the "scale" of the web-page. Specifically, the web-page is too big (800x600) for the screen, so my thought is to use "setInitialScale(50)" to reduce the size. Here is some sample code that doesn't work (i.e. the web-page doesn't scale to 50%)
WebView wv = (WebView)findViewById(R.id.webview);
wv.loadUrl("http://www.example.com/android/symptom");
wv.setInitialScale(50);
I also tried switching the order of the function calls but I get the same result¦i.e.,
WebView wv = (WebView)findViewById(R.id.webview); wv.setInitialScale(50); wv.loadUrl("http://www.example.com/android/symptom");
As an alternative, I have tried to use the "zoomOut()" function like this:
WebView wv = (WebView)findViewById(R.id.webview);
wv.loadUrl("http://www.example.com/android/symptom"); wv.zoomOut();
This approach works for a split second, and then the image reverts to its original size.
Here is my content view:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/ android"
android:orientation="vertical" android:layout_width="fill_parent"
android:layout_height="fill_parent"> <WebView android:id="@+id/webview"
android:layout_width="fill_parent" android:layout_height="fill_parent" /> </LinearLayout>
I have created a custom component and i want it to be singleton in my application and i want all actvities my application to have this custom component which is singleton.
View 2 Replies View RelatedIt doesnt seem possible, all code I've looked at from Google applications repeats the common portions of activity display in all layout files.
View 4 Replies View RelatedI want to execute one method wheneer i enter number in EditText view.But i did not change the focus of EditText.I am stay in the same EditText when i enter a new number automatically i eant to execute one function.Now my question is how we find that event that means enter a new number in EditText
View 1 Replies View RelatedI'm looking for a way to dynamically change an elements properties.
For example I want the user of my app to be able to enter a value within my program that will change android:layout_marginTop="blabla" to whatever I want. It doesn't specifically have to be that property, I want to be able to change any property of any element. Is there a way to do this?
Is there a way to lookup the line number that a given element is at in an xml file via the w3c dom api?
My use case for this is that we have 30,000+ maps in kml/xml format. I wrote a unit test that iterates over each file found on the hard drive (about 17GB worth) and tests that it is parseable by our application. When it fails I throw an exception that contains the element instance that was considered "invalid". In order for our mapping department (nobody here knows how to program) to easily track down the typo we would like to log the line number of the element that caused the exception.
Can anybody suggest a way to do this? Please note we are using the W3C dom api included in the Android 1.6 SDK.
How do I declare an Android UI element using XML?
View 1 Replies View RelatedI am facing a strange an issue that should simple to solve I suppose. I wonder how can I automatically scroll to see an element in a list view. Let's say I know that I want to see the element view number 6 in my list view, how do I scroll my list to see this element ?
I look at the API but without any success, just a word on where to look.
Can someone please tell me how to change tab by clicking on element INSIDE the tab? I already tried it with global data.
Now when I'm trying to change tab in my ListActivity tab by clicking on one of the items it doesn't do anything and stays on the ListActivity tab. Perhaps I shouldn't use onResume() here. Basically I want to go to first tab when I click on one of the items in the list. Please help!
I'm trying to get the ListView by using the findViewById function, yet I'm unsure what I am trying to find or what to put. R.id.list does not work.
View 1 Replies View RelatedI have a list using a customized BaseAdapter. When one element of the list is hit during a long time, a contextual menu appears. I want to use this one to delete or edit the selected item but I don't know how to get id or anything else that could help me.
I tried getListView.getSelectedItem() thinking that it will give me the object returned by the method getItem(int position) inherited in my customized BaseAdapter. I got null. When I tried getSelectedItemId(), I got -1.
Does someone have a solution?
This is going to be a bit lame question. I have the following code:
CODE:.....
I have a TextView in my xml layout file. I'd like to get it and change my text when I click this button.
But I can't get it (the TextView) unless I make it as a value of a static member of this class and pass it to the constructor. I believe I am missing a big point here, so i'd be very thankful if you could explain how this is meant to be done ?
Full code. how do i access the parent activity's mail layout elements? In this case a button. I have it declared in main.xml. When a button in the listview is clicked, i want to change the text of the button in main.
View 1 Replies View RelatedI've got a probleme with an exception, but I don't know why I get this exception.
The project is about implementing an AbstractAccountAuthenticator with an AbstractThreadedSyncAdapter to sync certain data on a server with a content provider.
I made everything and both adding accounts and syncing is running without any problems.
Now I've tried to add a Preference-Screen just like suggested in the android reference (search for AbstractAccountAuthenticator, it is explained there) via xml like this:
autenticator.xml:
CODE:..........
The Preference-Screen-xml looks like this:
CODE:.....................
The screen is promted how it should be, but and that is the problem: When I click on the PreferenceScreen with the intent it leads to a crash of the system (both in the emulator and my HTC-Desire).
Logcat says:
CODE:..............
Here the part of the manifest, where the activity is defined:
CODE:.......
The whole test-code (it is my project on the essentials to find the problem) is to find at googlecode (http://code.google.com/p/ cleanproject/source/browse/) (Eclipse-Project)
My friend and i develop a Android program.
Now we got to the question if it's possible to get the actual position of an ListElement.
Example: You drag the list up and down, and now you want to konw which element is on the center of the screen?
The screen shot below is of a simplified version of the application from the Tab Layout tutorial. You can see a black horizontal line below the tabs. Why is it there and how can I remove it?
View 2 Replies View RelatedI'm making out a few menus for my Android App and throughout there is a standard textview that is repeated 5 times, only changing the android:text tag each time, everything else is the same.There are a good number of properties on this and it feels very inefficient to be copy/pasting all these for each of the textviews.Is there a way I define the common properties just once and add them to each TextView element?
View 1 Replies View RelatedDoes it exist an Android view equivalent to a "<select>" HTML input element ? In my application, user should fill a form. I know that ListView can display a list of elements but I think it's not relevant for a form.
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