I wanted to use TableLayout nevertheless seems it's not available. What could be wrong?
Check below:
The TableLayout is a Xamarin.Android not a Xamarin.Forms Layout. Read more about the table layout here In Xamarin.Forms you use TableView, read more about here.
You write Xamarin.Forms views usually in .xaml files with .xaml.cs code behind. You write native Android views in .axml or .xml with no code behind.
A table for native android;
table_content.xml
<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:stretchColumns="1">
<TableRow
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_column="1"
android:text="Open..."
android:padding="3dip"/>
</TableRow>
</TableLayout>
A Xamarin.Forms sample table view;
TableContentPage.xaml
<ContentPage ...>
<TableView Intent="Settings">
<TableRoot>
<TableSection Title="Ring">
<SwitchCell Text="New Voice Mail" />
<SwitchCell Text="New Mail" On="true" />
</TableSection>
</TableRoot>
</TableView>
</ContentPage>
Related
I have a recyclerview with cardview for each item. The layout looks fine from Android Studio design. But when it is running on Emulator and inspecting the layout, some of the cardview settings are changed and the layout is different from design page.
Here is the design along with the XML layout file:
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<data>
<variable
name="viewModel"
type="com.example.androidclient.me.ui.SchoolListViewModel" />
</data>
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<androidx.recyclerview.widget.RecyclerView
android:id="#+id/recycler_view"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginStart="16dp"
android:layout_marginTop="80dp"
android:layout_marginEnd="8dp"
android:layout_marginBottom="80dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
tools:itemCount="20"
tools:listitem="#layout/school_list_item" />
</androidx.constraintlayout.widget.ConstraintLayout>
</layout>
The cardview layout file is:
<?xml version="1.0" encoding="utf-8"?>
<layout 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">
<data>
</data>
<com.google.android.material.card.MaterialCardView
android:layout_width="300dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_margin="4dp"
android:layout_marginTop="20dp"
android:layout_marginEnd="12dp"
android:layout_marginBottom="12dp"
app:cardBackgroundColor="#color/design_default_color_error"
app:cardCornerRadius="4dp"
app:cardElevation="8dp"
app:contentPadding="8dp"
app:contentPaddingBottom="10dp">
<TextView
android:id="#+id/school_list_item_id"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textSize="20sp"
tools:text="school name" />
</com.google.android.material.card.MaterialCardView>
</layout>
Here is what is shown on the emulator along with the layout inspection of cardview:
The dependency section in the app build.gradle is:
dependencies {
implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.5.1'
implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.5.1'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.5.1'
implementation 'androidx.navigation:navigation-fragment-ktx:2.5.2'
implementation 'androidx.navigation:navigation-ui-ktx:2.5.2'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'com.google.android.material:material:1.6.1'
// Retrofit with Moshi Converter
implementation 'com.squareup.retrofit2:converter-moshi:2.9.0'
implementation 'com.squareup.moshi:moshi-kotlin:1.13.0'
implementation 'com.squareup.okhttp3:logging-interceptor:3.8.0'
// paging
implementation "androidx.paging:paging-runtime:3.1.1"
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}
How can I add an image to a tool bar item on Android? I've managed to do it for iOS by assigning a new view to the item's CustomView property.
I want text and an image. Not one of the other.
How does one access tool bar items on Android?
You can use below code for use ToolBarItem.
<ContentPage ...>
<ContentPage.ToolbarItems>
<ToolbarItem Text="YourText" x:Name="YourName" Icon="image.png" Clicked="yourName_clicked"></ToolbarItem>
</ContentPage.ToolbarItems>
<ContentPage.Content>
...................
....................
</ContentPage.Content>
You can check this post to teach how to add an image to the toolbar.
But , in Toolbar.axml you can add your image
<android.support.v7.widget.Toolbar
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"
android:popupTheme="#style/ThemeOverlay.AppCompat.Light">
<ImageView
android:layout_width="wrap_content"
android:layout_height="fill_parent"
android:scaleType="fitCenter"
android:src="#drawable/xamarin_logo"
android:layout_gravity="center" />
</android.support.v7.widget.Toolbar>
I'm trying to implement a book contents selector using ExpandableListView, but I'm finding that LinearLayout seems to work differently when inside the ELV, than it does in an activity.
To illustrate what I am trying to do, here is where I am at so far:
Screen Capture
Notice when the text wraps to the next line, the TextView fills the available space and aligns the vertical line (and button in the groupView) to the right (section 1.1 and 3), but if the text does not wrap, the TextView only takes up as much space as it needs.
Here is the child view layout, the group view is similar but with a button.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#android:color/white" >
<View android:layout_width="3dp" android:layout_height="match_parent" android:background="#000000" />
<View android:layout_width="10dp" android:layout_height="match_parent" />
<TextView
android:id="#+id/sectionNumber"
android:layout_width="65sp"
android:layout_height="wrap_content"
android:textSize="18sp" />
<TextView
android:id="#+id/sectionTitle"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:textSize="18sp" />
<View android:layout_width="6dp" android:layout_height="match_parent" />
<View android:layout_width="3dp" android:layout_height="match_parent" android:background="#000000" />
</LinearLayout>
When I tried this outside of an ExpandableListView, it works as intended. What am I missing?
The problem was elsewhere in the fragment xml layout:
<ExpandableListView
android:layout_width="match_parent"
android:layout_height="0dp"
android:layout_weight="1"
android:id="#+id/expandableListView" />
layout_width was set to "wrap_content" and should have been "match_parent"
How to create a floating toolbar like the following image as proposed in the material design guidelines and in the Google Map application.
I've worked with the Toolbar before and all the comments from CommonsWare are absolutely correct.
The Toolbar widget (https://developer.android.com/reference/android/support/v7/widget/Toolbar.html) have absolutely nothing special or different than any other Viewgroup and does not behave differently than any other ViewGroup.
Put it inside a FrameLayout, put a layout_margin parameter on it, make the layout_width NOT match_parent and that's it.
Put it inside an LinearLayout with orientation=horizontal and you can use the layout_weight to control the size in percentage. Or just use plain dip if that suits your needs.
Since you are following the Material Design concept I am assuming your are using Coordinator Layout as your Main Layout and Not Frame Layout.
Before anything else we need to declare the important dependencies.
dependencies {
compile 'com.android.support:design:22.2.1'
compile 'com.android.support:cardview-v7:22.2.1'
}
Expected/Similar Output
XML snippet
<?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"
android:fitsSystemWindows="true">
<FrameLayout
android:id="#+id/frmlyout_locationnote_mapholder"
android:layout_width="match_parent"
android:layout_height="match_parent">
<!-- You can add your Map here-->
<ImageView
android:id="#+id/imgvw_locationnote_background"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fitsSystemWindows="true"
android:scaleType="centerCrop" />
</FrameLayout>
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp">
<android.support.v7.widget.CardView
android:layout_width="match_parent"
android:layout_height="wrap_content">
<android.support.v7.widget.Toolbar
android:id="#+id/tlbr_locationnote_mainmenu"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
app:layout_collapseMode="pin" />
</android.support.v7.widget.CardView>
</LinearLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab_locationnote_fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="#dimen/fab_margin"
android:src="#drawable/ic_plus_white_24dp"
app:layout_anchor="#id/frmlyout_locationnote_mapholder"
app:layout_anchorGravity="bottom|right" />
</android.support.design.widget.CoordinatorLayout>
I think Mark's suggestion for picking up the CardView "look" in the comment above deserves this derivative answer:
Just put a Toolbar in a CardView:
<android.support.v7.widget.CardView
android:id="#+id/map_toolbar_container"
android:layout_width="#dimen/whatever_you_want"
android:layout_height="wrap_content"
android:layout_margin="8dp"
app:cardElevation="8dp"
app:cardBackgroundColor="#324">
<android.support.v7.widget.Toolbar
android:id="#+id/wld_toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="?attr/colorPrimary"
android:minHeight="?attr/actionBarSize"/>
</android.support.v7.widget.CardView>
Just Add the following code....
<android.support.v7.widget.Toolbar
android:layout_width="match_parent"
android:layout_height="?android:attr/actionBarSize"
android:id="#+id/toolbar"
android:background="#color/colorPrimary"
android:elevation="8dp"
android:layout_margin="5dp"
>
//add whatever elements you want to add in here.
</android.support.v7.widget.Toolbar>
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="?attr/actionBarSize"
android:background="?attr/colorPrimary"
**android:layout_margin="10dp"
android:elevation="5dp"**
/>
Here is the code for the floating toolbar, just copy and paste.
This is an example of a floating toolbar using Appcompat, It can be working under many layouts like Relative, Coordinator, or DrawerLayout. You can increase elevation to make it more effective.
floating toolbar with Edit text or Search box
<LinearLayout
android:background="#color/colorWhite"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="16dp">
<androidx.appcompat.widget.Toolbar
android:background="#drawable/floating_toolbar"
android:id="#+id/app_toolbar"
android:elevation="2dp"
android:layout_width="match_parent"
android:layout_height="50dp">
<EditText
android:gravity="start"
android:id="#+id/search_bar"
android:background="#drawable/edit_text_no_border"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="Search here.." />
</androidx.appcompat.widget.Toolbar>
</LinearLayout>
drawable/floating_toolbar.xml file for set background shadows.
<?xml version="1.0" encoding="utf-8"?>
<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape
android:shape="rectangle">
<solid android:color="#6FA5A5A5" />
<corners android:radius="6dp"/>
</shape>
</item>
<item android:top="1dp" android:right="1dp" android:left="1dp" android:bottom="1dp">
<shape
android:shape="rectangle">
<solid android:color="#color/colorWhite"/>
<corners android:radius="5dp"/>
</shape>
</item>
</layer-list>
drawable/edit_text_no_border.xml file for EditText without an outline box or bottom border to make it clean matching background.
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#ffffff"/>
<corners android:radius="0px"/>
<stroke android:width="0dp" android:color="#FFFFFF"/>
</shape>
Emoji = ThumbsUp
ON SUNDAY I ACTUALLY SIDE-LOADED MY FIRST APP!!! Simple, unfinished, couple bugs, but it works.
My opening screen (XML: "event_list.xml") is a scroll list - select one get detail screen.
XML looks like: (This code is still a fragment.)
<?xml version="1.0" encoding="utf-8"?>
<fragment
xmlns:android="http://schemas.android.com/apk/res/android"
android:name="com.dummies.android.taskreminder.EventListFragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
And the row (XML "event_row.xml") looks like:
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/text1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textSize="12dp"
android:padding="2dip" />
I want a couple buttons at the top above the scroll. The best I can do is:
<?xml version="1.0" encoding="utf-8"?>
<fragment
xmlns:android="http://schemas.android.com/apk/res/android"
android:name="com.dummies.android.taskreminder.EventListFragment"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<Button
android:id="#+id/btn_Add"
android:text="#string/add"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</fragment>
But the button overlays the first entry!
What ties the row to the list screen and how do I get two buttons above the scroll (rows)?
This is what finally worked.
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content">
<Button android:id="#+id/btn_Add"
android:layout_width="50dp"
android:layout_height="30dp"
android:textSize="12dp"
android:padding="1dip"
android:text="#string/add" />
<Button android:id="#+id/btn_Exit"
android:layout_width="50dp"
android:layout_height="30dp"
android:textSize="12dp"
android:padding="1dip"
android:layout_marginLeft="5dp"
android:layout_toRightOf="#+id/btn_Add"
android:text="#string/exit" />
<Button android:id="#+id/btn_Other"
android:layout_width="50dp"
android:layout_height="30dp"
android:textSize="12dp"
android:padding="1dip"
android:layout_marginLeft="5dp"
android:layout_toRightOf="#+id/btn_Exit"
android:text="#string/other" />
<fragment
android:name="com.dummies.android.taskreminder.EventListFragment"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#+id/btn_Add" />
</RelativeLayout>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/text1"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textSize="12dp"
android:padding="2dip" />
<!-- This defines a row in which text can be placed -->
<!-- "text1" is the IDof the view for loading the list with data -->
Now just need to make the button code copied from detail screen (activity only) work in list screen (w/ fragment):
This generates errors: (findViewById undefined)
mExitButton = (Button)findViewById(R.id.btn_Exit);
This crashed:
mExitButton = (Button)getView().findViewById(R.id.btn_Exit);
Still working in this (it's late):
View myFragmentView = inflater.inflate(R.layout.????????, container, false);