When creating a custom element with attributes in Android I need to put the namespace of the application in the layout.
For example:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:whatever="http://schemas.android.com/apk/res/org.example.mypackage"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<org.example.mypackage.MyCustomView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
whatever:my_custom_attribute="Hello, world!" />
</LinearLayout>
Does this also requires that the structure of my project in Eclipse be the same as the name of the Android package as definied in the Manifest - as per the example?
Would this work too:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:whatever="http://schemas.android.com/apk/res/org.mycompany.myproduct"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<org.example.mypackage.MyCustomView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center"
whatever:my_custom_attribute="Hello, world!" />
</LinearLayout>
Its the package name of your application that should be reflected. So its correct to use it as you are doing.
For example:
In xmlns:whatever="http://schemas.android.com/apk/res/org.mycompany.myproduct the last part org.mycompany.myproduct should be the same as your package name. And you may change xmlns:whatever to anything like xmlns:theblitz but then make sure you do use theblitz as a prefix for your attributes in the xml.
For more info, read this
Related
This is the .xml file
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:seekarc="http://schemas.android.com/apk/res/com.pelkinsoft.enpower"
android:layout_width="match_parent"
android:layout_height="match_parent" >
The errors occur at:
<com.triggertrap.seekarc.SeekArc
android:id="#+id/seekArc"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:padding="30dp"
seekarc:progressColor="#color/arc_color"
seekarc:rotation="180"
seekarc:startAngle="30"
seekarc:sweepAngle="300"
seekarc:touchInside="true" />
I am new to Android and this is keeping me from being able to effectively work on this app. Any help would be much appreciated.
You must add the Seek Arc library (https://github.com/neild001/SeekArc#adding-to-your-project) to your project
Inside res foder, create following file:
res/values/color.xml
Then, define the color used by SeekArc view:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<color name="arc_color">#0000FF</color>
</resources>
OR
Manually set the color in the SeekArk view:
<com.triggertrap.seekarc.SeekArc
android:id="#+id/seekArc"
android:layout_width="match_parent"
....
seekarc:progressColor="#0000FF"
....
/>
Hi im just started programming and i just get this error message
"Multiple annotations found at this line:
- The markup in the document following the root element must be well-
formed."
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/jcea"
/>
</LinearLayout>
You're closing the LinearLayout element twice. Remove one of the closing tags, e.g.:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/jcea"
/>
Replace the /> with a >, or remove the /.
In xml, /> is another way of closing a tag if it does not have any data associated with it. For example, the following two statements are both valid and identical:
<tag></tag>
and
<tag/>
That being said, you should change your code snippet to either:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/jcea">
</LinearLayout>
or
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="#drawable/jcea"/>
I pulled this section of code from: https://github.com/slodge/MvvmCross-Tutorials/blob/master/MoreControls/MoreControls.Droid/Resources/Layout/FirstView.axml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res-auto"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent">
<Mvx.MvxSpinner
android:layout_width="match_parent"
android:layout_height="?android:attr/listPreferredItemHeight"
local:MvxBind="ItemsSource Shapes; SelectedItem Current" />
<!--
could be customised using
local:MvxDropDownItemTemplate="#layout/spinner_dropdownitem_shape"
local:MvxItemTemplate="#layout/spinner_item_shape"
-->
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:textSize="40dp"
local:MvxBind="Text Current" />
<MC.ShapeView
android:layout_width="fill_parent"
android:layout_height="300dp"
local:MvxBind="Shape Current" />
</LinearLayout>
The comment mentions it is possible to customize the look by passing MvxDropDownItemTemplate and MvxItemTemplate a layout. Let's assume we are going to use this simple layout for both templates:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res/Project.Ui.Droid"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
local:MvxBind="Text ???????" />
</FrameLayout>
The MvxSpinner displays the enumerated name (Circle, Square, Triangle) as the text for each item. Without changing the view model, is it possible to create a binding, in the template, that displays the same thing the MvxSpinner displays by default when no template is used? If so, what would that binding look like? If that's not possible, what is the best way to accomplish this outcome?
in the template, that displays the same thing the MvxSpinner displays by default when no template is used? If so, what would that binding look like? If that's not possible, what is the best way to accomplish this outcome?
The default template uses ToString() on the object.
To achieve the same thing, you can use the Whole Object binding. From the wiki, you should be able to specify using an empty Path or a single Period for the Path. Since we've seen some issues reported recently with empty Path binding, I recommend using a Period:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:local="http://schemas.android.com/apk/res/Project.Ui.Droid"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
local:MvxBind="Text ." />
</FrameLayout>
I'm trying to use the drag/drop functionality from this fine project: https://github.com/bauerca/drag-sort-listview/
First, I've added the library using the instructions on GitHub.
Second, I'm trying to use the XML declaration. This is my main.xml:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:dslv="http://schemas.android.com/apk/res/com.mobeta.android.dslv"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<include layout="#layout/header"/>
<com.mobeta.android.dslv.DragSortListView
android:id="#+id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:divider="#D9D9D9"
android:dividerHeight="2dp"
android:listSelector="#drawable/list_selector"
dslv:drag_enabled="true"
dslv:drag_scroll_start="0.33"
dslv:drag_start_mode="onDown"/>
</LinearLayout>
But, Eclipse is throwing this error: No resource identifier found for attribute 'drag_enabled' in package 'com.mobeta.android.dslv'; similarly for 'drag_scroll_start' and 'drag_start_mode'.
I'd like to understand on a more general level what I'm doing wrong here. And if anyone can give me specific help for using this library, I'd appreciate that as well.
Since you are refering the attributes fro your library instead of giving the full path of the library give "res-auto"
please see the change
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:dslv="http://schemas.android.com/apk/res-auto"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<include layout="#layout/header"/>
<com.mobeta.android.dslv.DragSortListView
android:id="#+id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:divider="#D9D9D9"
android:dividerHeight="2dp"
android:listSelector="#drawable/list_selector"
dslv:drag_enabled="true"
dslv:drag_scroll_start="0.33"
dslv:drag_start_mode="onDown"/>
for reference
I have been following a book on Android "Beginning Android Application". I have been trying to figure out an application which shows images in a view. But unfortunately I could not run the application because of the following errors:
[2012-04-24 19:37:33 - Gallery] F:\eclipse workspace\Gallery\res\values
\attrs.xml:2:error: Found text "
[2012-04-24 19:37:33 - Gallery] ​​​​ " where item tag is expected
For convenience I am giving here the codes.
main.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
>
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Bilai"
/>
<Gallery
android:id="#+id/gallery1"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
/>
<ImageView
android:id="#+id/image1"
android:layout_width="320px"
android:layout_height="250px"
android:scaleType="fitXY"
/>
</LinearLayout>
This application requires another xml file. It is named as attrs.xml under res/values.
attrs.xml
<?xml version="1.0" encoding="utf-8"?>
<resources>
<declare-styleable name="Gallery1" >
<attr name="android:galleryItemBackground" />
</declare-styleable>
</resources>
I think the problem lies within attrs.xml, but I dont know whats going on. And because of this the R.styleable also doesnt work either. Please help. Thanks in advance
I think you have some characters before each line in your attrs.xml due to a copy/past method.
Can you try to reformat your code by placing your text cursor at the beginning of each line and delete to return to previous line ?