Android :: Droid AppWidget TextView : Set Background Color At Run Time
Mar 16, 2010
I am trying to create an AppWidget, in which the background color of a TextView changes at random at specified periodic interval.
The TextView is defined in layout xml file as code...
But i am getting a widget saying problem loading widget. If i remove the above line everything works fine.
LogCat says: code...
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Sep 29, 2010
Actually, what I want is a textview which can show the progress of something, I know progressbar in android,however,so far as I know, it can not contain any text(am I right?), so, I want to change the background color of the textview to show progress,from left to right gradually.
Is there any other way to do this?
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Dec 1, 2009
how to give background color to textview in android?
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Aug 28, 2010
I'm attempting to change the background color of an Android TextView widget when the user touches it. I've created a selector for that purpose, which is stored in res/color/selector.xml and roughly looks like that:
CODE:................
The clickable attribute of the TextView is "true", in case that's of interest.
When I assign this selector to a TextView as android:background="@color/selector",
I'm getting the following exception at runtime: ERROR/AndroidRuntime(13130): Caused by: org.xmlpull.v1.XmlPullParserException: Binary XML file line #6: <item> tag requires a 'drawable' attribute or child tag defining a drawable
When I change the attribute to drawable, it works, but the result is looking completely wrong because the IDs appear to be interpreted as image references instead of color references (as the "drawable" suggests).
What confuses me is that I can set a color reference, e.g. "@color/black", as the background attribute directly. This is working as expected. Using selectors doesn't work.
I can also use the selector as the textColor without problems.
What's the correct way to apply a background-color-selector to a TextView in Android?
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Aug 12, 2010
Say for example I have a textview in class A,
and I want to change background color of textview from class B through a method...
how can I do it?
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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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Feb 6, 2010
I coded an AppWidget the user can add to his homescreen. There are a bunch of images (ImageView) in it that perform different actions like starting Activities on click (realised with PendingIntents). To make it easier to navigate through the AppWidget I'd like to use the trackball (as it works with the SearchWidget or FacebookWidget) but I just can't make it work. Here's my layout code for the AppWidget...
So I want to be able to navigate through a bunch of these "Spots" that are all relativeLayouts. How can I make that work out? I'd be really happy about every hint or idea!
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Feb 18, 2010
In android, when I press on a TextView, the text changes color (from white to grey). how can I disable that functionality?
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Jul 19, 2010
Is it possible to set the color of just span of text in a TextView?
I would like to do something similar to the Twitter app, in which a part of the text is blue. See image below..
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May 31, 2010
I have a listview with custom rows and that extends SimpleAdapter.
Each row consist of two linear layouts : 1st having two textviews of which one is hidden in horizontal orientation, second having two textviews in horizontal orientation.
Now depending on the value in hidden textview , I want to setcolor for the remaining items for the row.
To put it as simple:
each listview item has some custom colors the value of which comes from the hidden field.
I have done this by overriding getview() for the simpleadapter and returning view for each, but this makes list very slow to render (and that I think is obvious as so much of work for each view before showing it).
Can I do this in some more efficient way ? like making views and then add up to list instead of using xml layout maybe one solution OR any other?
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Aug 13, 2010
I'm battling with extending a TextView for my Android app. I'd like to create "bubbles" to display text messages in a conversation, similar to the native iPhone SMS conversations.
Is there a way to implement the resizing of a background image without just stretching it? I'd like to have a single background image that keeps it's corners but get stretched only in defined areas. I think this should be possible because I've seen it in a SMS app, but I wonder how to implement that.
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Sep 27, 2010
I am currently playing about with lesson 08 here http://insanitydesign.com/wp/projects/nehe-android-ports/ I would like to change the background colour from black to white. In order to do this at the start of onDrawFrame() I have called gl.glClearColor(1.0f, 0.0f, 0.0f, 0.0f); This does indeed set a white background screen, but also results in nothing else showing up on the screen! Clearly this is therefore an incorrect method, but why, and how do I fix it?
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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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Sep 3, 2009
How to set Background color of expandable List in android
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May 24, 2010
I have a simple Android application, with 3 buttons. When i click on the 1st button, i wanna change the background color of the layout (which is now white... i wanna change in other color, when i press the button). How can i do this?
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Apr 10, 2010
How 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.
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Feb 16, 2010
How to change the inner color of my xml file.It has default color as black only.how to change to other color.i have gn by xml file below .xml file is used for creating border,but i cant change the background color.
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Feb 17, 2010
Can you please tell me how can I place an background image to a the left upper corner of TextView in android? I would like the image not to be scaled by android.
I have tried
Resources res = getResources();
setCompoundDrawables(res.getDrawable(R.drawable.icon48x48_1), null, null, null);
Nothing is shown.
And I have tried
setBackground(R.drawable.icon48x48_1);
But it stretches the image.
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Nov 4, 2010
I have a TextView in my home screen widget. Can I use the following selector as the background of the TextView so the TextView can be highlighted when clicked? I know I can do it in Activity, but I am not sure about home screen widget.code...
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May 23, 2010
I've noticed that changing the background color of an android widget (f.ex. Button or TextView) by program:
myButton.setBackgroundColor(Color.BLUE);
makes it to loose its 3D shape, border, and shadows effects, and then appears like a ugly flat square. What am I missing?
Sorry for the very naive question but I couldn't get it right although tried for a time.
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Oct 17, 2010
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:
CODE:.........
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?
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Apr 28, 2010
I have a TextView that I created in the main.xml. In my app.java I am dynamically positioning that TextView based on where the user taps the screen. The problem I am having is that when I call myTextView.setPadding(100,100,0,0), it moves the actual Text of the TextView, but does not move the Colored Background of the TextView.
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Jul 22, 2010
Somehow when I select icons and menu items now, it's bright red.I'm pretty sure it wasn't there before.Where can I change that back? What was the default color?Even if someone doesn't know the answer, can someone at least select any icon on one of their home screens and tell me what color the background turns.Argh, there's got to be a way to change it.
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Dec 11, 2009
I noticed if I unlock my Droid and tap an icon, the background will change color, like the app was selected but it won't launch unless I tap it again. This only happens after I unlock the Droid.
Cannot figure out if I am doing something wrong.
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Sep 24, 2010
Here is my color XML
CODE:.............
Here is my Java code:
CODE:............
This works when I use Color.RED or Color.GREEN, but when I use my own colors. The color doesn't show up.
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Sep 8, 2010
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?
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Oct 14, 2010
I have a TextView that lives inside a LinearLayout. When I call LinearLayout.setSelected(false) the TextView text changes from white to black. Is there a way to set the unselected text color to something else?
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Jul 7, 2010
I have a TextView .
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Oct 27, 2010
I want to change color for CepVizyon.getPhoneCode()'s string... how can I do this??
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Jun 17, 2010
I want to set the color of the TextView by the function getcolorss. I tried a lot of different ways but i cant get in it.
import java.awt.*;
import android.graphics.Color;
public class test extends Activity {
TextView text1 = (TextView) findViewById(R.id.text1);
text1.setTextColor(getcolorss(1));
public Color getcolorss(int x)
{
switch(x)
{
case 1: return Color.BLUE;
case 2: return Color.RED;
}
}}
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