I am trying to use Christophe Versieux's excellent HoloEverywhere library in a ViewPager which is used in a fragment.
If I have the following layout for my fragment ...
<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:holo="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical" >
<TextView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:text="Roboto Font" />
<android.support.v4.view.ViewPager
android:id="#+id/pager"
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1" /></LinearLayout>
then the Roboto font appears in the TextView as I'd expect.
However, if the same TextView xml is in the view that the ViewPager inflates, the Roboto font doesn't appear in the pager's textview. It's just the default font.
What am I missing?
Related
For fun I am working on the Udacity Popular Movies app. I'm at the point where I'm clicking the movie image in the GridView and going to the detail view where i'm hoping to display the backdrop image on top, title below that, and overview below that. All in LinearLayout with the gravity for everything at the top.
Main Activity
Detail Activity
Here is the code to set the image in the ImageView:
ImageView imageView = (ImageView) findViewById(R.id.imageView);
Picasso.with(this).load("http://image.tmdb.org/t/p/w500/" + movie.backDrop).into(imageView);
Here is the Detail Layout File:
<?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:gravity="top"
android:layout_gravity="top"
android:orientation="vertical"
tools:context="com.ferr3t.don.gurumovies.MovieDetail">
<ImageView
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:id="#+id/imageView" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceLarge"
android:id="#+id/text_view_title" />
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:textAppearance="?android:attr/textAppearanceSmall"
android:id="#+id/text_view_description" />
</LinearLayout>
I'm not sure why the image is centered and small I want it to Fill the width of the screen. Any help would be greatly appreciated.
Try This in in xml Imageview property
android:scaleType="fitXY"
In the Google's Material Design specs they often shown the Floating Action Button lying over half the toolbar and have over the content.
http://www.google.com/design/spec/components/buttons-floating-action-button.html
But I have tried a few variations and there is still a gap between the toolbar and content, caused by the button.
<LinearLayout>
<include layout="#layout/toolbar" />
<include layout="#layout/fab_button" />
<ScrollView>
Content
</ScrollView>
</LinearLayout>
I have also tried placing both toolbar and FAB button in a FrameLayout and it also had the gap.
The FAB button code was taken from Google's samples, and I haven't had issues with having it overlap at the bottom of over a RecyclerView.
Is there a way to achieve this look shown in the Material Design Specs.
Add layout_anchor property in FAB and set it to Top View.
Make CoordinatorLayout as your root view, this would be best layout practice.
You can set FAB gravity using layout_anchorGravity attribute in FAB.
<?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">
<LinearLayout android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical">
<LinearLayout
android:id="#+id/viewA"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.6"
android:background="#android:color/holo_blue_bright"
android:orientation="horizontal"/>
<LinearLayout
android:id="#+id/viewB"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:layout_weight="0.4"
android:background="#android:color/holo_green_light"
android:orientation="horizontal"/>
</LinearLayout>
<android.support.design.widget.FloatingActionButton
android:id="#+id/fab"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="16dp"
android:clickable="true"
android:src="#drawable/ic_done"
app:layout_anchor="#id/viewA"
app:layout_anchorGravity="bottom|right|end"/>
</android.support.design.widget.CoordinatorLayout>
Check this out.
Hope this could help you.
Using Relative layout is the easiest to position a FAB in between 2 views. You can use elevation parameter for the fab to get it over the toolbar. Set the elevation of the FAB more that that of the toolbar.
<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"
xmlns:fab="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".MainActivity">
<android.support.v7.widget.Toolbar
android:id="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:elevation="4dp"
android:background="?attr/colorPrimary"
app:theme="#style/ThemeOverlay.AppCompat.Dark.ActionBar"/>
<ListView
android:id="#+id/listview"
android:layout_below="#+id/toolbar"
android:layout_width="match_parent"
android:layout_height="match_parent"/>
<com.getbase.floatingactionbutton.FloatingActionButton
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/favorite"
android:layout_alignBottom="#+id/toolbar"
android:layout_alignParentRight="true"
android:layout_alignParentEnd="true"
android:layout_marginRight="8dp"
android:layout_marginEnd="8dp"
android:elevation="8dp"
android:layout_marginBottom="-32dp"
fab:fab_icon="#drawable/ic_favorite_outline_white_24dp"
fab:fab_colorNormal="#color/accent"
fab:fab_size="mini"
/>
</RelativeLayout>
RelativeLayout doesn't seem to play nice in the v7 support library. I have three elements, One is aligned to the bottom and the other two stack above it. Rather than appear nicely stacked at the bottom, they are rendered off screen, this is unexpected.
I've included an example XML file which is for the custom view added to the toolbar.
<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent">
<EditText
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/name"
android:layout_above="#+id/divider"
android:textAppearance="#style/TextAppearance.AppCompat.Display1"
android:textColor="#color/textLighter"
android:text="#string/example_sequence_name"
android:singleLine="true" />
<View
android:id="#+id/divider"
android:layout_width="wrap_content"
android:background="#color/textLighter"
android:layout_above="#+id/description"
android:layout_height="81dp"/>
<EditText
android:id="#+id/description"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:hint="#string/hint_description"
android:textAppearance="#style/TextAppearance.AppCompat.Widget.ActionBar.Subtitle"
android:textColor="#color/textLighter"
android:layout_alignParentBottom="true"
android:singleLine="true" />
Results in this view.
I've got a layout with a textview with some buttons at the bottom. The textview is set to expand to fill the space. This is fine. However, when I change the textview to a webview, the webview does not expand to fill the space. What's wrong?
This is working fine:
<?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" >
<ScrollView
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
>
<!-- height set to fill because background is black and we want
the light background -->
<TextView
style="#style/subtopicView"
android:id="#+id/subtopic_content"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
/>
</ScrollView>
<include layout="#layout/include_html_view_footer" />
</LinearLayout>
This is not, but the only change is the textview to a webview and all other values remain the same.
<?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" >
<ScrollView
android:layout_width="fill_parent"
android:layout_height="0dp"
android:layout_weight="1"
>
<!-- height set to fill because background is black and we want
the light background -->
<WebView
style="#style/subtopicView"
android:id="#+id/subtopic_content"
android:layout_width="fill_parent"
android:layout_height="fill_parent" />
</ScrollView>
<include layout="#layout/include_html_view_footer" />
</LinearLayout>
the include is simply this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:background="#color/tintedColour"
android:orientation="horizontal"
android:paddingBottom="#dimen/spacer"
android:paddingTop="#dimen/spacer" >
<Button
android:id="#+id/PrevPage"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/previous" />
<Button
android:id="#+id/NextPage"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/next" />
<Button
android:id="#+id/Copy"
style="?android:attr/buttonStyleSmall"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="1"
android:text="#string/copyclipboard" />
</LinearLayout>
Thanks for any help.
It's generally a bad idea to nest scrollable elements like you have done by including a WebView inside a ScrollView. Touch events will be unpredictable, and it would probably be a better idea to drop the ScrollView altogether.
That said, the height of your WebView is set to fill_parent. However, the ScrollView is simultaneously trying to minimize the size of its children. As Romain Guy writes in a blog post on this topic:
In attempt to achieve this effect, I have seen several Android developers try to set the height of the view inside the scroll view to fill_parent. Doing so does not work and leads to the following result:
To understand this result, you must remember that android:layout_height=”fill_parent” means “set the height to the height of the parent.” This is obviously not what you want when using a ScrollView. After all, the ScrollView would become useless if its content was always as tall as itself.
By setting android:fillViewport="true", the scroll view’s child expands to the height of the ScrollView. (When the child is taller than the ScrollView, the attribute has no effect.)
I have a simple layout as follows :
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#D23456" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_margin="10dp"
android:background="#FFFFFF" >
<ImageView
android:layout_width="match_parent"
android:layout_height="800dp"
android:src="#drawable/ic_launcher" />
</LinearLayout>
</ScrollView>
The background of the scrollview is pink and linear layout inside has the android icon image with a height of 800dp (that doesnt fit to the screen) . What I'm expecting to see is that imageview floats in a background of pink with a margin of 10dp in every sides (top,bottom,left,right).But when I scroll to the bottom, the scrollview doesn't scroll to the margin, so the bottom of the scroll is the imageview not the pink margin.
How can I prevent this? This makes the user think the page hasn't ended yet and makes him want to scroll more.
I later found out that ,a similar situation has already been answered in the following thread https://stackoverflow.com/a/16885601/1474471 by #olefevre.
Adding an extra LinearLayout that surrounds the current LinearLayout with a padding and removing the inner LinearLayout's layout-margin solved the problem:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#D23456"
android:padding="10dp" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#FFFFFF" >
<ImageView
android:layout_width="match_parent"
android:layout_height="800dp"
android:src="#drawable/ic_launcher" />
</LinearLayout>
</LinearLayout>
</ScrollView>
The solution posted by #Mehmet Katircioglu works well, but you can solve the problem simply changing the android:layout_margin to android:padding, without none extra view. Like this:
<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#D23456"
android:padding="10dp" >
<!-- Your content (ImageView, buttons...) -->
<LinearLayout/>
use android:fillViewport="true" on the ScrollView may do it.
example in this thread.