I have a RecyclerView that has several items. Rather than the items being directly under each other with the least possible amount of space between each row, there is a massive gap between each item like shown: (Sorry that the Image isn't very good, I took it on a small phone)
Image displaying the issue
My layout file for the RecyclerView is here:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="#+id/layout_list_name"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentStart="true"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true"
android:textStyle="bold"
android:textAppearance="?android:attr/textAppearanceLarge" />
<TextView
android:id="#+id/layout_list_date"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignStart="#+id/layout_list_name"
android:layout_alignLeft="#+id/layout_list_name"
android:layout_below="#+id/layout_list_name" />
<ImageButton
android:id="#+id/layout_list_delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:contentDescription="#string/layout_list_delete"
android:src="#drawable/delete" />
How do I get rid of this massive gap?
Try changing layout_height="match_parent" to layout_height="wrap_content". That should hopefully solve your problems.
Change the height of the parent layout to wrap_content. For the XML file you posted, it should be:
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content">
Related
I want to build an expandable/collapsible TableRow. I have two rows and I want an expandable or collapsible button (like a small 'v') on the second row. Upon clicking the button, I want to expand the 2nd row with some other views. I am very new to android development, and I am not sure how to achieve this. This is what I currently have.
<?xml version="1.0" encoding="utf-8"?>
<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:id="#+id/container"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#4B0082">
<TableLayout
android:id="#+id/table_layout"
android:layout_width="370.0dp"
android:layout_height="350.0dp"
android:layout_centerInParent="true"
android:layout_marginLeft="#dimen/activity_horizontal_margin"
android:layout_marginStart="#dimen/activity_horizontal_margin"
android:layout_marginTop="#dimen/activity_vertical_margin">
<TableRow
android:background="#drawable/top_table_row_appearance">
<TextView
android:text="HNL"
android:padding="8dp"
android:textColor="#android:color/black"
android:textSize="15dp"/>
<TextView
android:text="LAS"
android:padding="8dp"
android:textColor="#android:color/black"
android:textSize="15dp"/>
</TableRow>
<TableRow
android:layout_marginBottom="5dp"
android:layout_weight=""
android:background="#drawable/tail_table_row_appearance">
<ImageView
android:id="#+id/image1"
android:src="#mipmap/ic_child_friendly_black_24dp"/>
<!--I want a collapsible button here. When I click it, this row should expand itself showing additional hidden views-->
</TableRow>
</TableLayout>
<android.support.design.widget.BottomNavigationView
android:id="#+id/navigation"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginEnd="0dp"
android:layout_marginStart="0dp"
android:background="?android:attr/windowBackground"
android:layout_alignParentBottom="true"
app:menu="#menu/navigation" />
</RelativeLayout>
Changing android:layout_width in the below xml to any value (like 99999dp for eg) does not seem to do anything when i run the emulator via android studio.
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal">
<EditText android:id="#+id/edit_message"
android:layout_weight="1"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:hint="#string/edit_message" />
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="#string/button_send" />
</LinearLayout>
Your EditText has android:layout_weight="1". When using weights the width is not taken in account and should be set to 0. If you remove the weight you should be able to set the width as desired.
So here's how my grid view looks like:
a http://imageshack.com/a/img41/7857/roir.png
I use some online JSON parsing and get the image thumbnail links and then pass it on as an array to the custom adapter and it sets images for which I again use some 3rd party library etc. But the 3rd party library is just used to set the image to the imageview. That's it.
So I have a main FragmentActivity. It has 2 fragments inside of it. The textbox u see there is inside one fragment(search fragment) and on top of it, the gridview is held by the second fragment. (results fragment)
Code for the results fragment:
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#f0f0f0"
tools:context="com.example.wikipicsearch.MainActivity" >
<GridView
android:id="#+id/gridView"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_margin="5dp"
android:columnWidth="100dp"
android:gravity="center"
android:numColumns="auto_fit"
android:verticalSpacing="5dp"
android:drawSelectorOnTop="true"
android:stretchMode="columnWidth" >
</GridView>
</RelativeLayout>
Code for the layout that I pass onto the custom Adapter:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical"
android:padding="5dp"
android:clickable="true"
android:background="#drawable/grid_color_selector"
android:focusable="true">
<ImageView
android:id="#+id/image"
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_margin="0dp"
android:layout_gravity="center" >
</ImageView>
</LinearLayout>
Now, I have no clue why on earth is there no horizontal spacing between each of that linear layout. I tried using android:layout_marginLeft etc etc... nothing works at all! I made the fragment holding the gridview look grey so that the each element in the grid will leave some spacing and it should look good. Please help me out with this. TIA!
Android:horizontalSpacing="20dp" this doesn't work, if you have a fixed size in the root element (ex- card) of the item layout that you are setting for the grid
Set the width like this - android:layout_width="match_parent"
Activiy layout
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".views.legacy_grid_view.LegacyGridActivity">
<GridView
android:layout_height="match_parent"
android:id="#+id/legacyGrid"
android:background="#color/teal_700"
android:layout_width="match_parent"
android:numColumns="2"
android:horizontalSpacing="20dp"
android:verticalSpacing="20dp"/>
</LinearLayout>
Item layout
<?xml version="1.0" encoding="utf-8"?>
<androidx.cardview.widget.CardView 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="200dp"
app:cardCornerRadius="10dp"
app:cardElevation="5dp">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="match_parent">
<ImageView
android:id="#+id/imageView2"
android:layout_width="0dp"
android:layout_height="0dp"
android:layout_marginStart="32dp"
android:layout_marginTop="32dp"
android:layout_marginEnd="32dp"
android:layout_marginBottom="60dp"
android:scaleType="fitCenter"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:srcCompat="#android:drawable/presence_away" />
<TextView
android:id="#+id/legacyGridEmail"
android:layout_width="wrap_content"
android:layout_height="0dp"
android:layout_marginTop="16dp"
android:layout_marginBottom="16dp"
android:text="Email"
android:textSize="20sp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintTop_toBottomOf="#+id/imageView2" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
Result
I wanna do such a layout in android, i can't figure it out.
one button on top, one button at bottom, and a listview take the rest center area, how to make the listview take the rest area? is this possible if parent container is vertical LinearLayout?
thanks
What i have done in my project is
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<Button
android:id="#+id/task_title"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:text="#string/tasks" />
<ListView
android:id="#id/android:list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="#id/task_title"
android:layout_above="#+id/add_button">
<!-- Preview: listitem=#layout/task_list_item -->
</ListView>
<TextView
android:id="#id/android:empty"
android:text="#string/no_tasks"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:gravity="center_vertical|center_horizontal"
android:layout_below="#id/task_title"
android:layout_above="#id/add_button"/>
<Button
android:id="#id/add_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:text="#string/plus_sign" />
<Button
android:id="#+id/remove_button"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_toRightOf="#id/add_button"
android:text="#string/remove_task" />
</RelativeLayout>
With relative layout you can simply do it, the key layout properties are android:layout_alignParentBottom="true" , android:layout_alignParentTop="true"
I'm relativity new to Android development, but I do like to think I catch on fast. I've been re-working an app I made for my softball team. Previously I've used Google's App Inventor, but have run into many shortcomings with it, so I am now attempting to re-work it using Eclipse.
Anyway, to the point. I seem to be having some excess padding being added to my LinearLayout, which I'm not sure where it is coming from.
I am using the TabHost to create the tabs on top (a modified version of Google's Tabs example).
Layout XML:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#+id/main_linlay_parent"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<TabHost
android:id="#android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
<RelativeLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background"
>
<!-- Allow the "Tabs" to scroll horizontally -->
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:fillViewport="true"
android:scrollbars="none"
>
<!-- The "Tabs" widget -->
<TabWidget
android:id="#android:id/tabs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#000000"
/>
</HorizontalScrollView>
<!-- Provide the "Content" the ability to vertically scroll -->
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_marginTop="65dp"
>
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<LinearLayout
android:id="#+id/tabdata"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
>
</LinearLayout>
</FrameLayout>
</ScrollView>
</RelativeLayout>
</TabHost>
</LinearLayout>
I believe the issue has to with the android:layout_marginTop="65dp" in the ScrollView, but if I remove it, my Tabs disappear (I'm assuming my tabcontent is just being overlayed over the top of it).
Lastly, here's a screen shot showing an example of what I'm experiencing (Disreguard the XML string, I still need to massage that part. I just wanted to show an example with data.).
http://kahunaball.com/android/screenshot_0.jpg
After starting the XML over from scratch and taking small steps forward, I was able to re-work the XML and resolve the excess padding from my layout.
I'm not 100% sure which change made the difference, but my suspicions are that changing the RelativeLayout to LinearLayout and moving the LinearLayout and TableLayout outside of the FrameLayout were what had done the trick.
For others that may stumble across this and would like to see my new XML which resolved the issue, here it is:
<?xml version="1.0" encoding="utf-8"?>
<TabHost
xmlns:android="http://schemas.android.com/apk/res/android"
android:id="#android:id/tabhost"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#drawable/background">
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none">
<TabWidget
android:id="#android:id/tabs"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#000000" />
</HorizontalScrollView>
<ScrollView
android:layout_width="match_parent"
android:layout_height="match_parent" >
<HorizontalScrollView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:fillViewport="true"
android:scrollbars="none" >
<FrameLayout
android:id="#android:id/tabcontent"
android:layout_width="wrap_content"
android:layout_height="match_parent" >
<LinearLayout
android:id="#+id/tabdata"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal" />
<TableLayout
android:id="#+id/myTableLayout"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#33B5E5" />
</FrameLayout>
</HorizontalScrollView>
</ScrollView>
</LinearLayout>
</TabHost>