Why doesn't write this program "Hello World! :-)" on my screen? I know how I would do it with an xml-file, but I want to do it like in the following program. And how can I set the coordinates without setting the width and height like with tv.layout(10,10,100,100);?
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Is it possible to build a GridView object in XML with 3 columns and 4 rows of Image buttons? It doesn't seem to have similar containment relationship like LinearLayout or RelativeLayout viewgroups.
I want to do this entirely in an xml layout file. When I put ImageButton xml tags inside a GridView xml body, The layout panel in eclipse is throwing an exception: UnsupportedOperationException:addView(View, LayoutParams) is not supported in AdapterView.
I want to have a textview (like a console or output window), which scrolls. I saw on this list that the TextView will not scroll on its own unless I wrap it in a ScrollView. So I did that and it worked. The problem is, it seemed no matter what I did I could not get the TextView to be higher than one line. This was only when it was embedded in the ScrollView, and didn't seem to change whatever I set the TexView's layout_height to.
Here is my layout:
CODE:..............................
I was working on my Hello-World-type application, and wanted to place a text view aligned to the top of the screen, and another aligned to the bottom, but can't grasp yet the layout philosophy...
After reading the dev guide for layouts, I came up with this:
CODE:........
But it's not working. Can anyone give a tip, or point me to good resource?
I am trying to add TextViews to my xml-defined layout in code. I have a xml-sheet, where a lot of Views are defined. But I have to add some views in code, so a create a LinearLayout in the xml-sheet:
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:id="@+id/info"
android:layout_height="wrap_content"
android:orientation="vertical">
</LinearLayout>
And in this layout, I like to add my TextView:......
When a marker is clicked on google map, a small square area is displayed with hyperlinks. I guess OverlayItem does not render hyperlinks for its snippet. How to achieve this? Ideally I want to assign a layout with all sorts widgets. Presume I can display a small floating activity window when the marker is clicked, but is this the standard way doing this? The drawback of floating activity window is that if want to click another marker, user has to dismiss the current window first.
View 2 Replies View RelatedI'm looking for how to overlay an ImageButton by a TextView in android xml layout. For the moment when I reduce the the TextView margin top, the TextView is going under the ImageButton. I want the contrary.
View 1 Replies View RelatedIn a RelativeLayout I have a Button to the right of a TextView. The problem is that the text view gets squished to the left of the screen.I want the Button to be squished to the right and the TextView take up all the remaining space.I can't use 'Fill Layout' on the TextView because the button then gets removed from the View completely.
View 1 Replies View RelatedIn Android, I wrote a number of strings in my string.xml I would like to display on a TextView based on a random number...code...
But I know I am not doing it right because I get the error:
The method array50(int) is undefined for the type MAIN. Any ideas?
I have the following layout xml. I am trying to place the TextView to the left, and the Radiobutton to the right. How can I accomplish this?
CODE:....................
I am having a bit of trouble with my current application. With a button at the beginning of my app, I send out Intents for two activities, one gets a camera object, and starts a preview screen. On top of that, in a separate layout, there is an activity with a translucent view, which shows a resource image (the user is trying to get the image he is actually taking to align with the translucent image) and a couple of textviews displaying a target phone orientation as well as the user's current phone orientation.
when I update the text value of one of my text views in my onSensorChanged() field, the system constantly reallocates 1.22MB and garbage collects it. I can only assume that this is because it is redrawing the entire layout with the translucent image and the text fields, because if I remove the view containing the translucent image from the layout, my text field updates 10x quicker and I don't have ridiculous heap growing / garbage collecting. I am wondering how to go about getting the text fields to update without redrawing the entire surface. I am very new to UI design, and this code was written by someone else before I took over the project, so I don't understand much of what is going on in the custom view he wrote to take care of the translucent image -- called MyView. I will post the code for the layout as well as the MyView code below.................................
Android:layout_gravity="center" doesn't seem to work the same in a RelativeLayout as it does in a linear one - I would just like both an ImageButton and a TextView to be centered in a relative layout - is there a basic xml code for this?
View 1 Replies View RelatedI have a relative layout with various text view aligned in it.But the alignment goes wrong if value of any textview goes multiline.is there any way to avoid it?
The view required is something like :
Name: Abc
address: 23,abc street,fhjhg apartments,Country
Email: abcdgehfhf@mail.com
address text view has width set as wrap-content
but it appears like:
Name: Abc
address: 23,abc street
Email: fhjhg apartments,Country
abcdgehfhf@mail.com
The layout xml is as below. I have a RelativeLayout, which contains a TextView. The OnClick listener is set on RelativeLayout. The RelativeLayout has a selector background. What I want is, when user clicks on the RelativeLayout, the background of the RelativeLayout should change, and the color of the text of the TextView should change too. Even though I set color selector for the TextView, only the selector on RelativeLayout works. The color selector on TextView doesn't work. How can I implement change of both RelativeLayout background and text color of TextView when user clicks the layout?
CODE:...................
Can I modify android.R.layout.simple_list_item_1? For eg., I want to change the text color of the textview inside the listview dynamically. For this, I need to get to the textview and change its color.. How can I do that?
View 1 Replies View RelatedI have an Linear Layout with horizontal orientation Within that I have image on left side and textview on right side . How to align those image and textview in the center horizontal without using margin?
Here is my code:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
androidrientation="horizontal"
android:background="@drawable/menu_colors"
android:gravity="center_horizontal"
>
[Code].....
As a newbie, I have been reading posts in learning how to do different functions.Using the Hello World example, I added a textview object to this application but the results come back as false on the screen.
View 8 Replies View RelatedI see a strange problem when I try to set a TextView, instead of a layout file via setContentView.
Case 1: i.e. if I do the following, it works fine...
TextView tv = new TextView(this); tv.setText("Hello World"); setContentView(tv);
Everything is OK.
Case 2: But suppose I have a main.xml file with a TextView in it and I try the following:
=========== View tv = findViewById(R.id.textview); setContentView(tv); =========== I get a Force Close with the below error
09-27 00:08:26.620: ERROR/AndroidRuntime(1595): Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f050001 type #0x12 is not valid 09-27 00:08:26.620: ERROR/AndroidRuntime(1595): at android.content.res.Resources.loadXmlResourceParser(Resources.java: 1801) 09-27 00:08:26.620: ERROR/AndroidRuntime(1595): at android.content.res.Resources.getLayout(Resources.java:685) 09-27 00:08:26.620: ERROR/AndroidRuntime(1595): at android.view.LayoutInflater.inflate(LayoutInflater.java:318) 09-27 00:08:26.620: ERROR/AndroidRuntime(1595): at android.view.LayoutInflater.inflate(LayoutInflater.java:276) 09-27 00:08:26.620: ERROR/AndroidRuntime(1595): at com.android.myhelloworld.SimpleActivity.onCreate(SimpleActivity.java: 22)
Case 3: I even tried to inflate the xml and set the view but even that resulted in a force close.
Am I missing something here ?
Is there any way that I can link a keyword in a TextView to a file or directory on the user's SD card? My app produces stack trace files when it crashes and I want the user to able to click a link in my About dialog to view either the latest one or the folder containing all of them. (Something like "If this app crashes, please send [link]the latest stack.trace file[/link] to us at myapp@example.com.")
View 1 Replies View RelatedI 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?
I am creating the custom textview i want to give black textcolor to this textview. how can i set textcolor. my code ...
View 2 Replies View RelatedI've been trying to create a Compound Control in Android 1.5 (as described here) but haven't been able to find any good examples on how to do this using an XML file to specify a layout. Create Custom Component based on LinearLayout, declaring layout in XMLI'm fine with creating an Activity and then loading an xml file using the following in the constructor:
setContentView(R.layout.main);
However, I want to do this in subclass of LinearLayout - so I can use this compound component in other XML layouts. Something along the lines of:
public class CustomView extends LinearLayout
{ public CustomView(Context context) {
super(context);
setupView();
} public CustomView(Context context, AttributeSet attrs)
{ super(context, attrs);
setupView();
} public void setupView() {
setContentView(R.layout.custom);
// Not possible } }
What is the correct way of going about doing this?
In my layout xml file, I have included other layout xml file (each with a different android id).But when I run it in the emulator, and start Hierarchy Viewer, each of the layout still shows 'NO_ID', and in my code, I have findViewById(R.id.test1) and findViewById(R.id.test2) both returns null.Can anyone please help me with my problem?
View 3 Replies View Relatedpublic void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.help);
[Code]....
There is my code. The problem is with the inputStreamToString(iFile).It says that it is undefined. Im working my way through an android book and that is exactlly out of the book. I have looked around and tried a few different ways but cant seem to make it open the quizhelp file and display it in the TextView_QuizHelp.
I am developing under eclipse.When I add a new .xml file under a layout and build my application,the resources are not generated for that file under R.java consequently the new layout is not recognized.How do I fix this.
View 2 Replies View RelatedUsing eclipse 3.4.1 and also 3.5 and I cannot seem to add a new layout .xml file.I tried adding it externally using windows explorer, but got all these errors.
[2009-08-21 00:01:54 - TestAndroid] (skipping index file 'C:workspaceTestProject
esdrawableThumbs.db') [2009-08-21 00:01:54 - TestAndroid] reslayoutTest1.xml: Invalid file name: must contain only [a-z0-9_.] [2009-08-21 00:01:54 - TestAndroid] reslayoutTest1.xml: Invalid file name: must contain only [a-z0-9_.]
Then i tried right click on the layout folder, selected new Android XML file and I got this --
The selected wizard could not be started. Plug-in com.android.ide.eclipse.adt was unable to load class com.android.ide.eclipse.editors.wizards.NewXmlFileWizard. com.android.ide.eclipse.editors.wizards.NewXmlFileWizard
I tried both versions of eclipse, I tried uninstalling and reinstalling the ADT plugin. Nothing seems to be working!
I noticed that in Android source code, layout file, there are 2 ways to reference a resource, could someone tell me what's the difference?
android:icon="@*android:drawable/ic_menu_stop" android:icon="@android:drawable/ic_menu_recent_history"
Who is responsible for validation of xml file when editing xml in Android layout editor? For example, when I set a negtive valut to android:maxLength of TextView, it will be marked in red. ADT or aapt is responsible for check?Your help will be appreciated.
View 6 Replies View RelatedI am beginning developing android application. What I need to know is how to associated a xml layout file with a new class (not the activity). For example the class needs to have a table with an image and some texts.
View 1 Replies View RelatedI've created a new xml file in my layouts directory using eclipse's "new->xml file" wizard and i want to be able to use the built in layout editor, however, this file is not recognized as an android layout file by the editor, but rather as an ordinary file. everything compiles and runs okay, but i wanted to know how to do it better next time.
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