Android :: Dynamically Change Widget Background
Jul 4, 2009
I am working a widget... I'd like to change my widget background image dynamically, is it possible? I tried theme & style, it doesn't want to work. It doesn't show any background image (see code sample below). I tried RemoteViews.setImageViewResource on an ImageView filling the widget, but i doesn't strech my 9patch image correctly (and it doesn't seems to change background, it add another image). Is there a solution? Additionnal question : is it possible to use an external (sdcard) 9patch image as background? if yes: how?
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Dec 9, 2009
Code...
I cannot find any information on how to change or hide the background image.
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Nov 18, 2009
we are designing the page and we need to change background image dynamically.Is there any way to load(or change) android application background image dynamically?help me from come out this problem?
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Aug 18, 2010
How to dynamically change the background LinearLayout?
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Aug 9, 2009
I am trying to set the background dynamically as I play music. 1) I am able to set the background using the setBackground (Color.GREEN) method. 2) Then I play a MP3 file (audio) using the MediaPlayer. 3) when I call myPlayer().isPlaying(), I would like to keep changing the background color continuously till the music stops.
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Sep 22, 2010
Is there a way to dynamically change the size of a widget? Can an app have multiple widgets?
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Jan 20, 2010
Code...
Can anybody guide me how do I change the background image or color of selected tab?
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Sep 16, 2010
I am using TabWidget. It comes with the default Grey background color. Is it possible to change this? If it is then please tell me how can I do this?
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Oct 21, 2009
I made a custom widget (which is just a composite like):
<LinearLayout> <TextView> </LinearLayout>
this widget is focusable and reacts to touches. I'd like it to change its background color to the default system highlight color when the user scrolls to it, and have it blink when the user taps it (just like an element of a ListView does).
I can add an OnFocusChangeListener for when the user scrolls to it, and in the handler do the changing of the background color.
How would I add the 'blinking' behavior though when the user just taps it with a finger? I did something like this as a test code...
this is just a guess. Is there a correct way of implementing this behavior?
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Aug 6, 2010
I remember seeing someone edited the widget background for the Genie widget and the FeedR Widget a while back. They said you had to be rooted to do it. Now that I am rooted, I am wondering how. Anyone know how and what I need to do this??
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Oct 11, 2010
Is there any possibility to set background image dynamically? I try to explain what I mean.
String picVariable = getPictureFromServer();
ImageView image = (ImageView)v.findViewById(R.id.dynamic_image);
// I know, that doesn't work, but that's the way I looking for
image.setBackgroundResource(picVariable);
I also read this article. It would suggested in one answer, to use java reflection to get a field of the R class by name. But I've never used reflextion before.
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Aug 25, 2010
I have the following question. I need to use R.drawable.id's dynamically, depending on the country choose, more precisely,depending on a "country" variable. For example, my screen contains a country flag. If the Deutschaland is the chosen country, i have to display something like this...
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Oct 10, 2010
I have an XMl file like below which I will use to set background for Textview:
row.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
The above Xml I will set as background for TextView in main.xml as below:
main.xml
<TextView
android:id="@+id/rowtext3"
android:text="Availablity"
android:layout_height="25px"
android:layout_width="60px"
android:textSize="10px"
android:textStyle="bold"
android:textColor="@color/black"
android:gravity="center"
android:background="@drawable/row"/>
But I want this to do from code rather than Xml.I have done everything that I have done in Xml like font,width,Height,font dynamically through code , but not able to set Background that I mentioned in Xml file . How can we set content of Xml file as background to textview similar to how we set background as XML in main.xml.
In the code I have done like this:
t1=new TextView(this);
t1.setText(ed1.getText());
t1.setHeight(25);
t1.setWidth(60);
t1.setTextSize(10);
But I didn't find how to set background i.e. how to set XML content as background?
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Mar 13, 2009
I want to resize the image dynamically before i set the background of the Image button... If there is any method?
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Apr 23, 2010
I am loading a listview dynamically. I have set a .9.png image as row background image. The main purpose of using .9.png image was to extend the height of the image dynamically according to the contents of the listview. But, the image is not getting extended. The contents which can be displayed within the height of the row are being displayed and the rest are being cut.
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Sep 23, 2009
Setting the background color programatically of an android TextView doesn't seem to work.
I'm I missing something!
CODE:.............
I also have this file (colors.xml) in my res/values folder
CODE:................
Also, setting the text color causes the TextView to disappear.
CODE:..................
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May 28, 2010
I am currently learning about widgets in Android. I want to create a WIFI widget that will display the SSID, the RSSI (Signal) level. But I also want to be able to send it data from a service I am running that calculates the Quality of Sound over wifi. Here is what I have after some reading and a quick tutorial: public class WlanWidget extends AppWidget Provider {RemoteViews remoteViews; AppWidgetManager appWidgetManager; Component Name thisWidget; WifiManager wifiManager; public void onUpdate(Context context, AppWidgetManager appWidget Manager, int[] appWidgetIds) { timer timer = new Timer(); timer.schedule AtFixed Rate(new WlanTimer(context, appWidgetManager), 1, 10000); The above seems to work ok, it updates the SSID on the widget every 10 seconds. However what is the most efficent way to get the information from my service that will be already running to update periodically on my widget? Also is there a better approach to updating the the widget rather than using a timer and timertask?
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Nov 8, 2010
I am a new developer in android, and I see some examples about activity, but I don't know How can I create the widget dynamically?
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May 28, 2010
I am currently learning about widgets in Android.I want to create a WIFI widget that will display the SSID, the RSSI (Signal) level.But I also want to be able to send it data from a service I am running that calculates the Quality of Sound over wifi.Here is what I have after some reading and a quick tutorial:public class WlanWidget extends AppWidgetProvider{
RemoteViews remoteViews;
AppWidgetManager appWidgetManager;
ComponentName thisWidget;
WifiManager wifiManager;
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
Timer timer = new Timer();
timer.scheduleAtFixedRate(new WlanTimer(context, appWidgetManager), 1, 10000);
private class WlanTimer extends TimerTask{
remoteViews remoteViews;
AppWidgetManager appWidgetManager;
ComponentName thisWidget;
public WlanTimer(Context context, AppWidgetManager appWidgetManager) {
this.appWidgetManager = appWidgetManager;
remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
thisWidget = new ComponentName(context, WlanWidget.class);
wifiManager = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);
@Override
public void run() {
remoteViews.setTextViewText(R.id.widget_textview,
wifiManager.getConnectionInfo().getSSID());
appWidgetManager.updateAppWidget(thisWidget, remoteViews);
}The above seems to work ok, it updates the SSID on the widget every 10 seconds.However what is the most efficent way to get the information from my service that will be already running to update periodically on my widget?Also is there a better approach to updating the the widget rather than using a timer and timertask? (Avoid polling)UPDATE As per Karan's suggestion I have added the following code in my Service: RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.widget);
ComponentName thisWidget = new ComponentName( context, WlanWidget.class );
remoteViews.setTextViewText(R.id.widget_QCLevel, " " + qcPercentage);
AppWidgetManager.getInstance( context ).updateAppWidget( thisWidget, remoteViews );This gets run everytime the RSSI level changes but it still never updates the TextView on my widget, any ideas why?
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Apr 2, 2010
How do I add a View dynamically in an android widget? I realize that the RemoteViews works as a container of updates, but the RemoteViews.addView is only available on API level 7 (and I want my widget to work on HTC Hero phones, which has API level 3).
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Nov 11, 2010
Is there a good way to add new image resources(from SD card) to a gallery widget at runtime?
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Feb 3, 2010
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.
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Feb 6, 2010
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.
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Mar 5, 2010
I am writing a home screen widget. Is it possible to add a View, e.g. ImageView, to a home screen widget through RemoteViews? I want to generate the views for the home screen widget dynamically.
updateViews = new RemoteViews(context.getPackageName(), R.layout.widget_news);
updateViews.setTextViewText(R.id.widget_title, mTitle);
updateViews.setImageViewBitmap(R.id.widget_picture,
BitmapFactory.decodeByteArray(image, 0, image.length));
My code is like above. But we I call updateViews.addView(aView), my IDE didn't allow me to do that and give me an compile error.
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Apr 23, 2010
I am loading a listview dynamically. I have set a .9.png image as row background image. The main purpose of using .9.png image was to extend the height of the image dynamically according to the contents of the
listview.
But, the image is not getting extended. The contents which can be displayed within the height of the row are being displayed and the rest are being cut.
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Dec 15, 2009
How to apply background color to listview dynamically in Android?
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Feb 18, 2010
I have three tabs in my Application. On an event under one Tab, i want to change the title of an another existing Tab. This is the title that we provide while adding the tabs to the TabHost.
Eg: TabHost.addTab(tabHost.newTabSpec("Tab2")).setIndicator("I need to be Changed dynamically").setContent....
In the above example, the title of the tab2 that i provided under setIndicator(), should be changed dynamically.
Is there any way to accomplish this.
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Oct 15, 2010
I have an Android application which has four tabs (I use a main TabActivity with TabHost and TabSpecs).
In one of my sub activity (activity opened in a tab), i need to open a tab not by clicking on the tab title and i don't know how to do this.
For example, i have a button in my activity and when i click on it, it opens a different tab.
For the moment, it is what i do:
Intent intent = new Intent(myActivity.this, myTabActivity.class);
intent.putExtra("ComeFrom", true);
intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
startActivity(intent);
Then in the TabActivity, if i get true reading the "ComeFrom" extra i open the wished tab but the problem is that it kills all the other activity. So, if someone knows a better (cleaner) way to do that trick.
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Mar 24, 2009
I have a tab activity with 3 tabs. Each tab has a default icon.
I want these icons have to be changed dynamically on each tab selected.
I mean, each tab has two icons, one for on tab select, another for on tab deselect.
Can any one please suggest me how to do it?
Here is my sample code...
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May 26, 2010
Is it possible to change the name of the application name dynamically? I want to keep a certain name like XYZ free when my application is free and XYZ Pro when the user has paid. So is it possible to change the name of the application dynamically?
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