I try out two different progress bar styles for action bar button, through
refreshMenuItem.setActionView(R.layout.actionbar_indeterminate_progress);
actionbar_indeterminate_progress.xml
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="?attr/actionButtonStyle" >
<ProgressBar
android:layout_width="wrap_content"
android:layout_height="wrap_content"
style="#android:style/Widget.ProgressBar.Small" />
</LinearLayout>
I had tried Widget.ProgressBar.Small and Widget.ProgressBar.Small.Inverse. However, I do not see any visual difference.
Widget.ProgressBar.Small
Widget.ProgressBar.Small.Inverse
I expect there is an inverse in color but there isn't. Am I missing something?
There is a slight difference, but it's difficult to notice at first.
The Widget.ProgressBar.Small style version is intended to be placed over dark backgrounds while the Widget.ProgressBar.Small.Inverse style version is intended to be placed over light backgrounds.
Normally you would probably not notice this. The best way to check it is to put the combinations of the two progress bars on black and white backgrounds and display it a on good display, then you can notice differences on the edges.
Related
I appreciate there's a number of questions around this but none of them seem to resolve the situation I find myself in. I've written a small test case to see if the community can support.
<?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">
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="75dp"
android:background="#ff0000">
</RelativeLayout>
<EditText
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentBottom="true"
android:layout_centerHorizontal="true"
android:layout_marginBottom="12dp"
android:text="Hello World!" />
</RelativeLayout>
This snippet above, produces the following: -
when given a theme in the android manifest for this activity of: -
<style name="AppTheme" parent="Theme.AppCompat.Light.NoActionBar">
<item name="android:windowTranslucentStatus">true</item>
</style>
So.. this is exactly what I would like, however when I open the keyboard, the following happens: -
(given that I have the following set in the manifest)
android:windowSoftInputMode="adjustResize"
As you can see, the keyboard hides the edit text.
This is where there's a number of other posts and confusion
The recommendations seemed to be to set things like (and see the result for each): -
android:fitsSystemWindows in the root relativelayout
Great, this fixes the keyboard hiding the edit text but now the red bar at the top is moved downwards, which is not what I would like (see original image if needed)
Change windowSoftInputMode to adjustPan
As expected, the view pans and the top bar is lost.
At this point, I'm a bit lost without coming up with a hacky solution to resize and calculate on the fly, which feels very dirty.
So given what I've posted above, does anyone have any solution to achieve the following: -
Translucent status bar (so the red panel sits behind it)
red panel doesn't disappear when the soft keyboard is shown
soft keyboard doesn't cover the text control
Let's also assume for arguments sake that colouring the status panel is not an option as I actually want to view the content behind the status panel, i.e. a map. I've used a red panel as an example.
I use latest Android Studio and SDK. In preview & real device i see this:
My code:
<?xml version="1.0" encoding="utf-8"?>
<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"
tools:context="com.myappname.view.AboutActivity">
<ListView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="#+id/listViewAbout" />
</RelativeLayout>
How i make subtitle text color is gray? Like this:
I'm going out on a limb and assume that you're using the row layout simple_list_item_2.xml (based on the screenshot) which gives you two rows. The problem, if you may call it that, is that depending on the SDK version, the styling for this layout has changed.
On SDK 23, it looks like this:
However, on say SDK 19, it looks like this:
Why?
To understand this we first need to take a look at the xml that generates the rows from simple_list_item_2.xml, you'll see it's a pretty simple layout that uses the now deprecated view TwoLineListItem but that's just a plus on why to use your custom layout.
<TwoLineListItem xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:minHeight="?attr/listPreferredItemHeight"
android:mode="twoLine"
android:paddingStart="?attr/listPreferredItemPaddingStart"
android:paddingEnd="?attr/listPreferredItemPaddingEnd">
<TextView android:id="#id/text1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="8dp"
android:textAppearance="?attr/textAppearanceListItem" />
<TextView android:id="#id/text2"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_below="#id/text1"
android:layout_alignStart="#id/text1"
android:textAppearance="?attr/textAppearanceListItemSecondary" />
</TwoLineListItem>
The reason is because of the way the style textAppearanceListItemSecondary is resolved in each SDK version. The style is what gives the text the size, the color, etc. The evolution of the interface in Android has given birth to a huge ecosystem of themes and relying on the default styling will result in inconsistencies like the one you stumbled upon.
What to do about it?
You should use your own layout for this to allow for uniform styling across versions. To do so, please refer to any of the multiple questions covering this matter. But in short it just means creating a layout file, call it for example custom_row.xml and having the layout look exactly as you please. This also gives you total control over placement of the items, extra Views that you may need, and overhead in terms of coding is minimal compared to the SimpleAdapter or ArrayAdapter that perhaps you were using.
Note
You should consider moving your code towards RecyclerView instead of ListView if you haven't already.
You can set Textview property
android:textColor="#color/grey"
in you Adapter layout to change colour of your sub item
Hope this will help
I am trying to make use of the elevation property in the latest Android Lollipop preview release. I set the targetSdk to 21 and the theme to Material. Next i added a background shape to a TextView and set the elevation to 8dp but the TextView is not showing any signs of a shadow. That is on a Nexus7 running the Lollipop preview. Is there anything else i have to consider?
Here is the layout:
<?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">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:background="#drawable/rect"
android:text="hallo world"
android:padding="8dp"
android:elevation="8dp" />
</LinearLayout>
This is the background drawable:
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#7d0073ff" />
<corners android:radius="16dp" />
</shape>
Here is the TextView:
For some reason if you set a solid color with a transparency, the elevation shadow does not show up.
In your example, I changed #7d0073ff to #0073ff and I got a shadow.
This is probably a bug, as in their documentation it gives a similar example using a translucent background color.
After going through the docs again, I finally found the solution.
Just add card_view:cardUseCompatPadding="true" to your CardView and shadows will appear on Lollipop devices.
What happens is, the content area in a CardView take different sizes on pre-lollipop and lollipop devices. So in lollipop devices the shadow is actually covered by the card so its not visible. By adding this attribute the content area remains the same across all devices and the shadow becomes visible.
My xml code is like :
<android.support.v7.widget.CardView
android:id="#+id/media_card_view"
android:layout_width="match_parent"
android:layout_height="130dp"
card_view:cardBackgroundColor="#android:color/white"
card_view:cardElevation="2sp"
card_view:cardUseCompatPadding="true"
>
...
</android.support.v7.widget.CardView>
ADDING android:elevation shadow to an ImageView:
android:clipToPadding="false"
+
android:outlineProvider="bounds"
+
android:elevation="2dp"
I was also having this problem, and as it turns out, you need to turn hardware acceleration on in the android manifest
<application
...
android:hardwareAccelerated="true">
be aware, if you have the following line in the manifest then shadows wont show:
android:hardwareAccelerated="false"
TL;DR
Check your card: (or whatever word you use) namespace declaration and make sure it matches this: xmlns:card="http://schemas.android.com/apk/res-auto"
I know there are a few answers here already, but I wanted to add mine as it wasn't included in these current suggestions. In order to get the shadows working on both KitKat and Marshmallow, (only emulators I tried, I'm sure it works in between) I added the following xml attributes to my card:
card:cardElevation="25dp"
card:cardUseCompatPadding="true"
After banging my head against my desk for why that wasn't working, trying to set the background color of the card to something completely opaque, enabling hardware acceleration in the manifest, and even praying, I checked the namespace declarations in my file. To my horror, I saw that the card xml namespace had been assigned to the following:
xmlns:card="http://schemas.android.com/tools"
After fixing that namespace declaration, I ran my dummy app again and let out a sigh of relief as shadows were finally being shown as expected.
Here is proof in case you're a doubter like me. And please Google, Android, whoever: Make shadows great again. They shouldn't be this difficult.
Here is the entire file that created the layout pictured below:
<?xml version="1.0" encoding="utf-8"?>
<!--MAKE SURE YOU HAVE THE RIGHT XML NAMESPACE ASSIGNED-->
<!--TO WHATEVER WORD YOU PUT IN FRONT OF THE CARD-->
<!--XML ATTRIBUTES. IN THIS CASE, MINE IS card-->
<android.support.percent.PercentRelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:card="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="#607D8B"
android:fitsSystemWindows="true"
tools:context="com.mlustig.playground.MainActivity">
<android.support.v7.widget.CardView
android:layout_width="100dp"
android:layout_height="100dp"
android:layout_centerInParent="true"
app:layout_aspectRatio="66%"
app:layout_heightPercent="75%"
card:cardElevation="25dp"
card:cardUseCompatPadding="true" />
</android.support.percent.PercentRelativeLayout>
Yes, I know. It's annoying that you can't simply copy and paste this layout and run it because it has PercentRelativeLayout in it, but I left it there on purpose. You should definitely check it out. Super powerful, very useful. Nice nice nice. Hope this helped.
As noted earlier, this is an open bug in Android : if the background drawable uses a solid color with transparency, then the shadow won't be shown.
To work around the issue, display the background in its own separate view and set the alpha on that view. Wrap the background view and the TextView in a RelativeLayout to place the background directly under the TextView and use android:layout_alignLeft, android:layout_alignBottom etc to make it the same size. They need to be at the same elevation, and the background must appear before the TextView in the xml so it is drawn under it.
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:paddingLeft="40dp"
android:paddingRight="40dp"
android:paddingTop="20dp"
android:paddingBottom="20dp"
android:clipToPadding="false"
android:background="#ffffff">
<View
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignLeft="#+id/text_view"
android:layout_alignRight="#id/text_view"
android:layout_alignBottom="#id/text_view"
android:layout_alignTop="#id/text_view"
android:background="#drawable/rect"
android:alpha="0.5"
android:elevation="8dp"/>
<TextView
android:id="#id/text_view"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="hallo world"
android:textColor="#ffffff"
android:padding="8dp"
android:elevation="8dp" />
</RelativeLayout>
The drawable is the same as yours but without transparency:
<shape xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<solid android:color="#0073ff" />
<corners android:radius="16dp" />
</shape>
Result:
A few notable points:
You must ensure that the enclosing RelativeLayout is large enough to display the shadow. If you just set its dimensions to wrap_content without padding, the shadow will be clipped to the layout's bounds. As explained in this question, you can use padding and set android:cipToPadding="false" to make it large enough for the shadow. You might not need as much padding in this case, I haven't experimented with that.
In this case we need to use a separate view for the background because if we had set the alpha directly on the TextView then the text would have been affected as well. Depending on your use case you might not need a separate view and enclosing layout and could just just have one view, with alpha set on the view and no transparency in the drawable.
Try using : app:cardElevation="4dp"
Try adding margin to the CardView.
I've been through all of these forums looking for an answers on how to change the size of the ratings bar (making the stars smaller) and im not really sure if it can be done? I saw the tutorial with the "custom pretty ratings bar" but i'm not really trying to create anything new. I want to use the stars that the packages come with. I want a 10 star rating where all stars fit on the screen, right now only about 7 fit on the screen. Basically I want it to look like the IMDB app. rating system if anyone has seen that? Thanks for the help. I'll paste some code but it's not a lot.
<?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" >
<RatingBar
android:id="#+id/ratingBar1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:numStars="10" />
</LinearLayout>
I think the only way is to make your own custom star drawables. Even if they are just copies of the system star drawable that are shrunk down.
You just have to create your custom style for the rating bar.
Here it is well explained:
https://stackoverflow.com/a/5800686/435855
I have the following layout:
<?xml version="1.0" encoding="utf-8"?>
<FrameLayout
xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical"
android:background="#EAEAEA">
<ListView
android:id="#+id/xxx"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:textColor="#464C59"
android:divider="#A4C539"
android:dividerHeight="1px">
</ListView>
<ImageView
android:id="#+id/home_bottom_bar"
android:src="#drawable/bottombar"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="bottom"
android:clickable="true"/>
</FrameLayout>
The goal is to have some sort of advertising bar at the bottom of the activity (which contains a list of items). It works ok, except for one thing! There is some sort of extra space just under the bar (it's very small but it's noticeable enough). By the way, all the paddings are set to 0 so where does this space come from?
Thanks!
EDIT
After investigating the issue, it turns out that the custom background (#EAEAEA) is causing this extra space. Still don't know how to fix this though.
When you mention that it is a small extra space, it may be the tiny gradient at the top and bottom. Created by ListView, when it is made scrollable.
You may read about ListView Backgrounds, this should give you the idea on how to fix it, if it is caused by this special gradient.
This gradient line can apparently also be removed: extra line in tab host
You may want to use the merge tag since every activitys base layout is a FrameLayout.
(This may cause the padding. Im not 100% sure on this one though)
Look here.