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Change background color of remoteview dynamically

As of my previous question
here
I successfully managed to do this by transparent image. Now i want to change background color of images dynamically in remoteviews(PS I want to make widget like that and color of images in given link changes dynamically).
I tried following code:
ColorFilter cf = new PorterDuffColorFilter(-15032095, Mode.MULTIPLY);
Drawable d= context.getResources().getDrawable(R.drawable.panel1);
d.mutate();
d.setColorFilter(cf);
rv.setBitmap(R.id.rl_noti_main, "setColorFilter", drawableToBitmap(d));
but it didn't help. How can i achieve this?
I have color codes in all formats integer, HEX or string whatever it will be needed.
Please note that i want to do this only for given shapes in this link and for remoteview.
Thanks in Advance :)

For someone else looking for it
remoteView.setInt(R.id.container, "setBackgroundColor", backgroundColor);

You cannot dynamically update widgets.
You can use the setBitmap() method to change the bitmap of a view inside a RemoteView. If the view is at the background, it should change the background. And then update the widget to make the changes to be applied.
If you are using RemoteViews in Notifications, you should update your notification after this. If you are using it in a Widget, you should use appWidgetManager.updateAppWidget(appWidgetId, views); function.

How to change existing TextView style in action

I have some intent with set of TextViews and a Button. If user clicks the button and there is some error I want to change look of one TextView. E.g. change the border to red and make font bold. I wrote a style for it but I have not found method setStyle on the TextView. After some self study I realized that Android does not support setting the style programmatically. There are some workarounds, when you create the intent source. But my intent already exists, it seems odd to recreate it.
Could you tell me the proper way?
use the workaround and create the TextView again
forget the styles and use java methods to decorate existing TextView
something else

Changing the style of the textview directly does not work as you know. But you can create a second textview with other styles in your layout, which you can show up if needed.
Just add this xml attribute android:visibility="gone" to the second textview, so this second textview is not displayed at first, but available.
When you now want to change the style of your textview, you simple need to swap the two textviews by hidding the first one and showing the second one
textView1.setVisibility(View.GONE);
textView2.setVisibility(View.VISIBLE);

I used these two answers to make it work:
https://stackoverflow.com/a/5488652/1639556
https://stackoverflow.com/a/14195090/1639556
and the code is:
ViewManager parent = (ViewManager) unknown.getParent();
parent.removeView(unknown);
TextView newUnknown = (TextView)getLayoutInflater().inflate(R.layout.tvtemplate, null);
newUnknown.setId(unknown.getId());
parent.addView(newUnknown, unknown.getLayoutParams());
unknown = newUnknown;

You can try using setTextAppearance() on the textview. The link is: setTextAppearance
Your style will need TextAppearance.SomeThing.SomeOtherThing as the parent.
Use R.style.YourStyleName as the integer argument.

Changing background of a button in widget: Android

I need to change background of a button programmatically. That button is placed in a widget.
I got an example of changing background color here, but this is only for changing color, and I want to use an image instead of a color.
Is there any way to apply a background image to a button programmatically?
Thank you

Instead of using setBackgroundColor like in the example you linked you should be able to use setBackgroundResource I think.

In Your AppWidgetProvider class:
private RemoteViews v;
... in onUpdate:
v = new RemoteViews(context.getPackageName(), R.layout.widget);
...
icon = context.getResources().getIdentifier("ic_action_refresh_"+choosenTheme, "drawable", context.getPackageName());
v.setInt(R.id.wi_bu_refresh, "setBackgroundResource", icon);
Where:
icon is just resource id (found by getIdentifier method dynamically for every theme).
R.layout.widget is widget xml layout.
R.id.wi_bu_refresh is a button in widget layout, which background You want to change.
Hope it helps, cheers.

You can use this:
setInt(YouButtonId, "setBackgroundResource", YourImageResourceID);

use setBackgroundResource instead of setBackgroundColor .

I think you need to use public void setBackgroundResource (int resid)

Changing AppWidget's background dynamically with a 9 patch drawable

There is no setBackground() method in the RemoteViews class, so I've used the following workaround:
Created a FrameLayout for my app widget with an ImageView as the background view.
Changed the ImageView image using setImageViewResource() method.
Unfortunately, when it comes to 9-patch drawables this method does not work. Also when an ImageView's android:src attribute points to 9-patch - it doesn't work too. Is there any way to change the AppWidget's background image programatically using a 9-patch drawable? Thanks in advance.
EDIT
Settings the 9-patch as initial background in the XML:
<ImageView
android:id="#+id/small_widget_layout_bg"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background_lime" />
When I use android:src="#drawable/background_lime" it doesn't stretch the image properly, this code works fine. And the code to change the background from the AppWidgetProvider onUpdate method:
views.setImageViewResource(R.id.small_widget_layout_bg,
R.drawable.backgroung_lime);
This does not stretch the image as a 9-patch.

This answer was diagnosed in the above comments...
RemoteView doesn't allow access to View.setBackground(), so your workaround of using the android:src property of an ImageView is good, providing that the android:scaleType property is set to fitXY.
ImageView won't stretch it's foreground image unless you tell it to.

Please ignore if u find this trivial or irrelevant, but canT you try (assuming you are dealing with widgets):
Declaring different layouts (xml)for your widget.
Change the remoteView's source (layout.id) instead of trying to make alterations to the selected layout.
AFAIK, this is the most common approach to solving such problems. This is not perfect for two simple things I could note myself:
What do you do if you have n different "states" / "views" in your widget?
But as long as your 9-patch files are also static resources, n is painful but still theoretically manageable.
It s tedious to keep track of the changes in these parallel files.
I'd also love to find an easy way for this one...
This approach may not be an option for you also because it is basically the hard way. But it s an option nonetheless.
Suggestion #2
Have you tried using the method?
public void setInt (int viewId, String methodName, int value)
remoteView.setInt(R.id.viewid, "setBackgroundResource", R.drawable.backgroung_lime);
From another question: Change remoteView ImageView background

Getting ListView drawables and applying it manually

i am trying to apply the style that a list item has, when it is selected, to a View (In my case a TextView)
Example
here it would be the orange-painted style. I found that this look is defined by a Drawable Object. So i tried, so get the drawable and applied it to my view
TextView tv = new TextView(this);
tv.setText("Hello, Android");
tv.setBackgroundDrawable(new ListView(this).getSelector());
setContentView(tv);
but it doesn't work.
Does anybody have an idea how to do that?
Ok I figured out how to do that. I found out hat ListView uses the ColorStateList list_selector_background which is defined in android.R.drawable. Using ResourceBrowser I got to know that the fourth color is the selected drawable so i added the following to my code
StateListDrawable listDrawables= (StateListDrawable)getResources().getDrawable(android.R.drawable.list_selector_background);
listDrawables.selectDrawable(3);
Drawable highlightDrawable = listDrawables.getCurrent();
Now I can set my Background using higlightDrawable. I don't know if it is possible to access the drawable in xml I did not try it yet. Thanks for help!

It would be a pain to do it by code.
You need to implement a selector and let android know which resource needs to be used when the view is pressed, enabled or focused.
Here is sample example on how to achieve the same.