If I create a new XML-file (using the default Android Studio "Create Linear Layout"), Studio makes a file with content:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
</LinearLayout>
If I (right)-click "Analyze... → Inspect Code" the result window throws 2 times:
"Namespace is not bound" and references to line 3 and 7 (the LinearLayout-tags). Is it a bug in Studio?
If you get the error:
Namespace 'tools' is not bound:
Example:
<activity
android:name="com.google.android.gms.ads.AdActivity"
android:theme="#android:style/Theme.NoTitleBar.Fullscreen"
tools:replace="android:theme"
/>
Add xmlns:tools="http://schemas.android.com/tools" at the top of the manifest (or activity).
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.mypackage"
xmlns:tools="http://schemas.android.com/tools">
You must copy everything except the first line <?xml version="1.0" encoding="utf-8"?> from your xml file, create a new xml layout file and erase everything but the first line, then paste the copied content into the new file below the first line. Then you use the new layout file instead of the old one.
Note: This is just my interpretation of leo's answer, I don't know if it works or not and cannot test it because I don't have the same problem as you guys.
try this:
in android studio 2.2.3 press F2 to jump between the warning then press Alt+Enter; this created the following reference:
xmlns:app="http://schemas.android.com/apk/res-auto"
and fixed the issue.
Moreover, I checked my XML files and all have this encoding version:
?xml version="1.0" encoding="utf-8"?
Add:
xmlns:app="http://schemas.android.com/apk/res-auto"
to yor manifest tag
I just added in the xml on the root widget this line:
xmlns:tools="http://schemas.android.com/tools"
An example of this is:
<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_height="match_parent"
android:layout_width="match_parent">
then you can use attributes like:
tools:text="+52"
Related
So in my project, we are overriding a preferences layout file - preference_category_material.xml from androidx.preference:preference library.
Our new code of preference_category_material.xml looks something like this
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:ignore="UnusedResources"
android:id="#android:id/textView"
...
/>
The TextView is the root and the only element in the file.
While running ./gradlew lintRelease I am getting this error:
Error: Overriding #layout/preference_category_material which is marked as private in androidx.preference:preference:1.2.0. If deliberate, use tools:override="true", otherwise pick a different name. [PrivateResource]
I have seen a similar question, but that deals with color tags: Override resources in library android
Adding tools:override="true" to the TextView in our file does nothing.
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
tools:ignore="UnusedResources"
tools:override="true"
android:id="#android:id/textView"
...
/>
This does not solve the problem.
Any help is appreciated. Thanks.
While trying to create and Extract string from the layout file it is showing the alert dialog that Package is not specified in the manifest file. It is happening from while I had updated my studio to the newest version(chimpunk 2021.2.1) and the newest gradle(7.2). any help will be appretiated.
I had the same problem. Open AndroidManifest.xml and add your package name back.
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
package="YOUR_PACKAGE_NAME"> <!--This is what I added-->
Can we change the default Build behavior of Android Studio from Constraint to Relative Layout?
Problem: Sometimes it takes more time to Clean/Rebuild my project. And I never use Constraint Layout, so I want to set the build behavior of Android Studio from Constraint Layout to Relative Layout.
I want every-time I open AS, it should open Relative. Is it possible to achieve?
Make default layout to Relative for current project
First open your .xml file and change your constraint layout to relative layout. Then go to the top menu of your Android Studio with a project open. Then go to "Window" tab, Then select "Store Current Layout as default". If the default is not what you like, download a layout you would like as default and set it as your default layout.
Make default layout to Relative for all projects
Just modify the template layout file which is present in android studio resources
C:\Program Files\Android\Android Studio\plugins\android\lib\templates\activities\common\root\res\layout
Now edit this file simple.xml.ftl and change layout to your choice(Note. for making default relative just copy below code in your simple.xml.ftl file), notice that some layouts require additional elements (e. g. LinearLayout needs android:orientation), save file and create activity in Android Studio, it should work.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
<#if hasAppBar && appBarLayoutName??>
xmlns:app="http://schemas.android.com/apk/res-auto"
</#if>
android:id="#+id/${simpleLayoutName}"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingLeft="#dimen/activity_horizontal_margin"
android:paddingRight="#dimen/activity_horizontal_margin"
android:paddingTop="#dimen/activity_vertical_margin"
android:paddingBottom="#dimen/activity_vertical_margin"
<#if hasAppBar && appBarLayoutName??>
app:layout_behavior="#string/appbar_scrolling_view_behavior"
tools:showIn="#layout/${appBarLayoutName}"
</#if>
tools:context="${relativePackage}.${activityClass}">
<#if isNewProject!false>
<TextView
<#if includeCppSupport!false>
android:id="#+id/sample_text"
</#if>
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Hello World!" />
</#if>
</RelativeLayout>
Keep in mind if you modify the simple.xml, the android studio updater will detect a conflict and prevent applying the update. Keep your copy :)
Quite Easy - just in 3 steps
Goto C:\Program Files\Android\Android Studio\plugins\android\lib\templates\activities\common\root\res\layout
Backup simple.xml.ftl
Modify simple.xml.ftl to below code and save it
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="${packageName}.${activityClass}">
<TextView
android:id="#+id/textView"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:text="Sample"
android:textSize="16sp" />
</RelativeLayout>
Tried and tested on Windows 10 build:gradle:3.0.1
Works for every new activity in the same project and for future projects as well.
Note: Need to modify the simple.xml.ftl file with Admin rights
For this to work out you don't need to edit layout > New > Edit File Templates... your layoutResourceFile and layoutResourceFile_vertical by removing the ${ROOT_TAG} - as I have already tried but that doesn't work.
I'm a bit new to programming so bear with me. I'm trying to create a FAB menu by following ResoCoder's tutorial on youtube, but there's an issue with the CoordinatorLayout element being declared.
It throws this warning:
The 'android.support.design.widget.CoordinatorLayout' is not declared.
Here's the AXML file.
<?xml version="1.0" encoding="utf-8"?>
<android.support.design.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:text="Hello FAB menu!"
android:textSize="24sp"/>
<View
android:id="#+id/bg_fab_menu"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#48000000"
android:alpha="0"
android:visibility="gone"/>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab_airballoon"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom|end"
android:layout_margin="#dimen/standard_23"
android:visibility="gone"
android:rotation="90"
app:fabSize="mini"
app:srcCompat="#drawable/ic_airballoon"/>
</android.support.design.widget.CoordinatorLayout>
And here is an image of the warning.
Warning
edit:
This is now showing on the 'Designer' tab
Error on designer tab
Short Answer :
It's just a warning and not an error, you could compile your project without any problem.
Long Answer :
The problem is that the Intellisense could not pick the attributes you type although those attributes did exists in android SDK. So the Visual Studio shows that :
The 'android.support.design.widget.CoordinatorLayout' is not declared.
To solve this problem, you should enable Intellisense in Android .axml files. But a little difference with the document, you could download android-layout-xml.xsd and schemas.android.com.apk.res.android.xsd file from the following link :
https://github.com/atsushieno/monodroid-schema-gen/blob/master/android-layout-xml.xsd
https://github.com/atsushieno/monodroid-schema-gen/blob/master/schemas.android.com.apk.res.android.xsd
Download the file and edit the android-layout-xml.xsd and add the ConstraintLayout element. Then move these file manually to :
C:\Program Files (x86)\Microsoft Visual Studio 14.0\XML\Schemas\1033
Or simply just add these schemas within Visual Studio. Restart your VS, this warning will be gone
Suggestion :
It is recommend that ignoring the warning, you could compile your project without any problem.
Update :
Otherwise, after compiling I get errors like: 'Error: No resource found that matches the given name (at 'layout_margin' with value '#dimen/standard_23').' Which I assume are because of the CoordinatorLayout not being declared.
The dimen attribute need you create on yourself, make sure you copied the dimens.xml file too. You need create the dimens.xml in Resource\values\dimens.xml, define the standard_23 size in this file. Then the compile could find the standard_23 size.
dimen.xml :
<?xml version="1.0" encoding="utf-8" ?>
<resources>
<dimen name="action_button_min_width">56dp</dimen>
<dimen name="indeterminate_progress_size">32dp</dimen>
<dimen name="standard_23">23dp</dimen>
</resources>
I was googling for ways of specifying Width and Height of views in Android.
I found
Xamarin.Android.Support.Percent library
Link to official example: https://components.xamarin.com/gettingstarted/xamandroidsupportpercent
I used package manager to obtain this library and copy pasted axml code from the example:
<?xml version="1.0" encoding="utf-8"?>
<android.support.percent.PercentFrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent">
<View
android:background="#f0f0f0"
app:layout_widthPercent="50%"
app:layout_heightPercent="50%"
app:layout_marginTopPercent="25%"
app:layout_marginLeftPercent="25%" />
</android.support.percent.PercentFrameLayout>
It can't even compile, errors i get:
Severity Code Description Project File Line Suppression State Error No
resource identifier found for attribute layout_widthPercent,
layout_heightPercent, layout_marginTopPercent,
layout_marginLeftPercent
Does anyone has an idea of what is wrong?
I am pretty new to Xamarin and Android. Is there something I need to write in AndroidManifest.xml or AssemblyInfo.cs?
Any other advice?