I am trying to implement a ListView that is composed of rows that contain a View on the left followed by a TextView to the right of that. I want to be able to change the background color of the first View based on it's position in the ListView. Below is what I have at this point but it doesn't seem to due anything. Code...
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I have defined a custom theme, where I am drawing a dark gradient on my window background. My ListView background is set to be transparent, however whenever I scroll, the background color turns black, and then after scrolling has stopped, goes back to the gradient color. Why is this?
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How can I change background color of ListView items on a pair-item basis. When I use android:backgroundColor in the ListView item layout I can achieve this, however the list selector is no longer visible. I can make the selector visible again by setting drawSelectorOnTop to true but then the selector overlays the whole item.
Any ideas how to change those background colors and keep the selector?
I would rather not change the selector itself.
Authors of GMail application have managed to achieve exactly this so it's definitely possible.
Setting the background color programatically of an android TextView doesn't seem to work.
I'm I missing something!
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I also have this file (colors.xml) in my res/values folder
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Also, setting the text color causes the TextView to disappear.
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I'm trying to set the background color of a View (in this case a Button).It causes the Button to disappear from the screen.What am I doing wrong, and what is the correct way to change the background color on any View?
View 1 Replies View RelatedI'm setting background color based on a given state of an object in each row in a list. That part is working just fine but when I set the background color on the outermost layout the row no longer highlights when selected. Probably a specific attribute I'm not setting/changing?
View 3 Replies View RelatedI was wondering if someone has a good answer to this.I am looking for a better way to animate a background color transition from on color to the next.Currently, I have two views, vCurrentColor which lays on top of the vNextColor, in a FrameLayout. I then animate the alpha of the currentColorView to zero. At the end of the animation I swap the positions of the views and repeat the process.
View 3 Replies View RelatedI'm trying to restore the background Color of a View. I have several selectable Views. When the user clicks one of those Views, the following code is executed and the View becomes Yellow:
View newSelection, previousSelection;
...
if(previousSelection != null) {
previousSelection.setBackgroundColor(Color.BLACK); // problem here
}
newSelection.setBackgroundColor(Color.YELLOW);
However, I want to reset the color of the previously selected View. However, I do not know which color it was (I'm setting it to Color.BLACK in the above code). I was not able to find a getBackgroundColor or similar method in the View class. If I had it, I could save the previous color and just put it back when the new View is selected.
I have, for the time being, a custom view with a 9-patch image as a border.
That custom view is placed three times in a LinearLayout, so it looks like this:
+------------------------+
| CustomView |
+------------------------+
| CustomView |
+------------------------+
| CustomView |
+------------------------+
I have attached a click event listener to the View, so it is clickable. But then I click it, I cant see that I am clicking it - there is no change in color.
So, Im thought that I'd attach a "onPress" listener, and then change the background of the view but I couldnt find such a listener.
So, the question is - how do I create the behaviour on the View so I can see that it is being pressed? this is normally done in Android with a green background to indicate that it is now being pressed.
can anyone help me of changing the background color of a list view?. i am new to android and i really need to know this.
View 2 Replies View RelatedHow do you animate the change of background color of a view in Android?
For example:
I have a view with a red background color. The background color of the view changes to blue. How can I do a smooth transition between colors?
If this can't be done with views, an alternative will be welcome.
I want to know how to change background color of List View using XML command.
View 2 Replies View RelatedI have a button defined in my XML file. The button works exactly like you would expect...that is until I add the line at the bottom (android:background="drawable/leftarrow1"). Then the button is no longer click able in the activity, but the new background shows up like I want. What gives?
<Button
android:id="@+id/switch_left"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_center Vertical="true"
android:background="@drawable/leftarrow1" />
When we expand the notification expanded view ,we get a default white background with small squares. how can i change this white background to some other color.
View 1 Replies View RelatedIm trying to change background color when an item is selected. Something like using a color selector, but actually it crashes. I've created a list_selector.xml inside /res/color/.<?xml version="1.0" encoding="UTF-8"?> <selector xmlns:android="http://schemas.android.com/apk/res/android"><item android:state_focused="true" android:color ="@ color/ plain_yellow"/><item android:state_pressed="true" android:state_enabled="false" android:color ="@color /plain _yellow" /><item android:state_enabled="false" android:color="@color/ plain_yellow" /><item android: state_active="true" android:color="@color/ plain_yellow" /><item android:color="@android: color/ transparent" /></selector> plain_yellow is a color i've defined in /res/values. I've tried to assign that selector programatically and using the xml, but the app crashes. Am i doing something wrong?
View 2 Replies View RelatedHow to apply background color to listview dynamically in Android?
View 1 Replies View RelatedI have a screen where I need to put a background image. I need to display only a part of the background image in each screen . Now when the user swipes towards left , the next screen will be displayed taking another portion of the background image. This transition from the first to second screen should give a 3 Dimension effect of moving the screen. I am unable to get any help form Android forums.
View 1 Replies View RelatedI'm trying to create a listview containing conversations in chat bubbles, and each chat bubbles are rows in the list view. So what I have is an avatar on the left, and a chat bubble on the right. Then in the chat bubble, I have a textview for name, a textview for content, and a textview for time. The problem is, I cannot adjust the height of the chat bubble such that the bottom edge is just below the textview for time. In the chatBubble, I have this line that does not work android:layout_alignBottom="@+id/timeLabel" because timeLabel is a textview created after chatBubble. If I place chatBubble tags right below timeLabel, the height of chatBubble will be just right because lf the layout_alignBottom, but chatBubble covers all the text created before it.
Is there a way I can create the chatBubble last, and bring the view to the background? Or is there a better way to do this?....................
Just have a look in the system app contacts --->add new contact, this activity have a listview with different structured views for each row. I could do this by override the "getView" method, but a problem I'm facing is edittext will lose focus when I click on it. What happened when the view enter touch mode?
View 4 Replies View RelatedHow to use a layout as empty view for a listview when the adapter has zero elements?
setEmptyView is not working with this code :
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Layouts used :
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main.xml
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I have seen this example:
@*android:color/secondary_text_light
What's that * asterisk doing there? What is the difference when using or not?
I need to set alternate color in list view rows but when i do that it removes/ disables the on focus default yellow background
I tried with backgroundColor
rowView.setBackgroundColor(SOME COLOR);
also with backgrounddrwable.
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But it wont work. is there any way we can set background color and on focus color simultaneously which will work.
I have a simple ListView and on that ListView I have placed a number of custom defined Views. The CustomView has ImageView and two TextViews.
The CustomView also has a "stateful drawable" as background, so that the background image (a 9-patch) changes if you press the Row in the ListView. When pressing the Row, the background image changes to a Red-ish thing.
The problem is that when the background changes from the default greyish, all the Views in the CustomView (ImageView and TextViews) still have their greyish background and thus creates very ugly greay boxes on top of the now redish background.
What is the best way to solve that problem? I hoped that such things were handled automatically (as it is done in for example .NET), but I was wrong it seems.
To give the user of my app an indication which field currently has the focus I am trying to change the background color of some of my fields depending on the current state, however, I am having troubles understanding Androids Color State List Resources:
There is this example at the bottom of http://developer.android.com/guide/topics/resources/color-list-resource.html. If I try exactly the same, i.e. if I want to adapt the textColor , things do work. However, if I try an only slightly different thing, namely to adapt the background color, things do not work and I don't understand why? Why is this so inconsistent?
To make it simpler to understand what I am trying to do, I append my misc. .xml files:
The AndroidManifest.xml file:
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If I run this as shown here, it works, i.e. I get a button whose text color changes depending on whether the button is focuses, pressed, etc.
If I uncomment the lower button, where I just flipped the attribute values for textColor and background I get an exception, stating
... <item> tag requires a 'drawable' attribute or child tag defining a drawable
What the heck am I missing here? Why is that color state list acceptable as a text color but not as a background color? How does one specify a view's background color depending on the view's state?
In my app i'm setting background to each child views in listview. So that listview default focus ( orange color ) is not focusing. Is there any way to set both ( listview focus & child view background)?
View 1 Replies View RelatedHere is my color XML
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Here is my Java code:
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This works when I use Color.RED or Color.GREEN, but when I use my own colors. The color doesn't show up.
In the string.xml file i use the following tag
<color name="mycolor1">#F5DC49</color>
if i use : textview1.setTextColor(Color.CYAN);
it works, But :textview1.setTextColor(R.color.mycolor1);
This is not working.how to use the color tag in android?
How can I set button background color at run time?
View 6 Replies View RelatedI have a question about setting the background color for buttons the entire button turns into a red rectangle. Is there actually a workaround to achieve this?Also what can I do to revert back to the default color of the button (the typical plain greysh background).
View 6 Replies View RelatedIn my android application I want the standard/basic titlebar to change color.To change the tekst color you have setTitleColor(int color), is there a way to change the background of the bar?
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