So, I am developing an android application, and across all the layouts that I have created so far, I have buttons, not AppCompatButton or Material Button just plain simple button which has the following attributes set:
<Button
android:id="#+id/logout"
android:layout_margin="8dp"
android:text="#string/log_out_button"
android:textColor="#000"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="#drawable/rounded_buttons"
app:layout_constraintBottom_toBottomOf="parent"/>
rounded_buttons.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android">
<solid android:color="#FFF"/>
<corners
android:radius="8dp"/>
</shape>
This throws a fidelity warning:
Paint.letterspacing() not supported.
The weird part is this xml when referenced in layouts created earlier works as intended.
I appreciate any help you could provide.
If it helps this started after I installed a third party plugin to import material icons:
Material Icon Generator
I have since disabled this plugin, invalidated caches and restarted the ide, somewhere on SO, it suggested to change the theme, tried that to no avail, so changed it back to the one I was using.
This is pretty embarrassing, All I had to do was change the theme in the preview from
Material Components to AppTheme.
Pretty stupid to not have figured this out earlier.
Also the Material Icon generator is pretty great and did not cause this issue.
Related
what is the essence of the question:
Why is the color that I write in solid in the shape not taken into account
Why do I have a white background on the back of the button now (attached a photo)? I don't understand where I can fix it
I found a video on YouTube and there was the following solution: Create an xml file in drawable and there I specified the following:
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item>
<shape android:shape="oval">
<solid android:color="#color/teal_700"></solid>
</shape>
</item>
</selector>
The problem is that when the videos came out, there were no themes and everything worked out perfectly right away, and I tried to figure out why I didn't apply color to the button if I set it in the shape, but I never figured it out and it doesn't take into account my color that I set in solid :) I decided to change the primaryColor in the theme to the color I needed and then it applied.
And can you also throw, please, useful modern resources to the latest versions of android studio? I'm just learning, so I haven't found much yet and it would be interesting to see some examples for new updates, because all the videos are from earlier versions and some of them don't converge, as, for example, now in the question
If there are not enough details to solve the problem, then write to me
To make A Button Round Use MaterialButton
<com.google.android.material.button.MaterialButton
android:layout_width="100dp"
android:layout_height="50dp"
android:text="1"
app:cornerRadius="18dp" />
I am trying to set gradient color in Button (in android studio whose version is Arctic Fox).
gradientbuttonmainactivity.xml
I made this file in Drawable.
<?xml version="1.0" encoding="utf-8"?>
<shape
xmlns:android="http://schemas.android.com/apk/res/android"
android:shape="rectangle">
<gradient
android:startColor="#93501C"
android:endColor="#A67E7E"
android:type="linear"
android:angle="360"/>
<corners
android:radius="25dp"/>
</shape>
activity_main.xml
<Button
android:id="#+id/btnR"
android:layout_width="275dp"
android:layout_height="55dp"
android:layout_marginStart="55dp"
android:layout_marginTop="25dp"
android:background="#drawable/gradientbuttonmainactivity"
android:text="#string/register" />
but Button color is as it was, corners values applied but gradient values did'nt.
I searched it on google but didn't found any working solution.
In one stackoverflow answer, a writer said to change the colorPrimary (in theme.xml) with #null. I done this , and gradient color applied, but on Run, the app failed to open in the smartphone, however, it launched successfully.
So, the question is clear, How do I make the button with gradient color ? Thank You.
As an alternative, try using
androidx.appcompat.widget.AppCompatButton
instead of
Button
it might be a recent change with Button and Android's material design, I've noticed on older projects what you have implemented works with Button but on a more recent project, that background is not working
I want to applying drawable to my android button.
But, background drawable is not working.
This is my drawable code.
<?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="#FFEF1D1D" />
</shape>
</item>
</layer-list>
and This is my layout code
<Button
android:id="#+id/booking"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:layout_weight="6.5"
android:text="bokking"
android:textStyle="bold"
android:textColor="#color/white"
android:background="#drawable/booking_btn"
android:layout_marginRight="10dp"/>
Drawable is not applied to Button, but drawable is applied to AppCompatButton. I wonder why too.
When I applied this code, Only backgroundTint applies to buttons.
I spent a week on this issue, but I couldn't solve it.
plz help me
You can't apply the background on the material button.
If you are using Theme.MaterialComponents.*, then the normal button also used as the material button forcefully.
You have two options.
change it to any AppCompat theme.
Still If you need a material theme for some components, then use any material theme with a bridge. like Theme.MaterialComponents.*.Bridge
So, If you will go with option 2, you can use material button as per your need.
use com.google.android.material.button.MaterialButton for material button else use your normal button.
Looks like there is a problem with the Theme since Android Studio 4.1, try changing the base Theme from Theme.MaterialComponents.DayNight.DarkActionBar to Theme.AppCompat.DayNight.DarkActionBar, it works for me.
There is only one chance for that.I think you are using material theme.That's why the background property is not applying for button.If you want use that,change the theme to appcompat varaint.
You didn't use the selector in your XML. Use Selector instead of Layer-List
I seem to have a problem that I just do not know how to solve with Android Studio. The code worked find on Eclipse and the weird thing is that it also works on the Design preview window of Android Studio, but does not work when I execute the application on any real device.
The problem I'm having is with the drawable folder where I have a selector xml and a shape xml file. In my layout, I set the background of the button to the selector xml file. I noticed a very annoying red circle with an exclamation mark in the selector xml file where I specify the drawable to be the shape xml file. It doesn't state what the problem is, if any. It looks just like the following picture:
The Design preview window shows the button as specified in the drawable xml files:
Here is the code for my files:
bshape.xml
<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
<solid android:color="#FFAA33"/>
<corners android:radius="5dp" />
</shape>
button.xml (selector)
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<!-- Normal state of button -->
<item
android:state_enabled="true"
android:drawable="#drawable/bshape" />
</selector>
myLayout (RelativeLayout)
<?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"
android:visibility="visible" >
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20sp"
android:text="Button Test"
android:textColor="#000000"
android:background="#drawable/button"/>
</RelativeLayout>
I've made sure the xml files have the .xml extension. I've noticed several posts regarding missing the extension in the xml file.
This is really driving me nuts. I've spent about 3 hours attempting to solve this problem and I just don't know what it could be. Any help is extremely appreciated. Thank you in advanced!
Edit:
Below is a picture of all the files listed in my project.
First, I want to thank Eric for his attempt at providing a solution to my problem. Thank you very much Eric!
It seems to be working, however the red circle with the exclamation point still shows in the button.xml selector file.
This is what I did, I used the Design view to select the button and under the Properties pane, I clicked on background ... button and the Resources window came up. I selected the Project tab, then I searched for Drawables->button and clicked OK.
I performed a 'Clean Project' by going to Build->Clean Project. Then I build the project by executing Build->Rebuild Project in the Menu bar.
Now it seems to be working as expected. I believe this could very well be a bug in Android Studio. There goes 4hrs of my life I will never get back :)
I'm trying to detect the focus/pressed color for button and other elements.
This is needed because I'm developing new components and it's important that those look as part of platform.
Those colors are ORANGE on android sdk and GREEN on HTC SenseUI.
If I could detect that color my component will look as part of platform on both version.
Does anyone knows how to do this?
It's possible to create "selector" which uses custom image for default state and platform default for focus/selection.
To do this follow the steps:
1) create xml file with selector in "res/drawable" (e.g. "red_button.xml"):
<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_pressed="true"
android:drawable="#android:drawable/btn_default" >
</item>
<item android:state_focused="true"
android:drawable="#android:drawable/btn_default" >
</item>
<item
android:drawable="#drawable/btn_default_red" >
</item>
</selector>
2) from folder ".../android-sdk-mac/platforms/android-1.5/data/res/drawable/" take picture "btn_default_pressed.9.png" and change color as you like (I needed to change it to red and for this GIMP is enough).
3) place altered picture in "res/drawable" (e.g. with name "btn_default_red.9.png")
4) define button:
<Button
android:id="#+id/info_button"
android:layout_width="wrap_content"
android:layout_height="37dip"
android:layout_marginTop="1dip"
android:background="#drawable/red_button"
android:text="[Info]" />
That's all.
This is result:
alt text http://img200.imageshack.us/img200/1349/custombutton.png
I had this problem too. As already stated, the problem is that the backgrounds aren't simple colors, they're Drawables that could take on all kinds of appearances. However, I found a work-around that may help. If your custom component looks something like an existing one, e.g. a Button or ListView entry, you can just steal their background/selector and set that as the background for your custom component. E.g., in your custom component constructor:
setBackgroundDrawable(new Button(context).getBackground());
or for a background more suitable for list-like components:
setBackgroundDrawable(new ListView(context).getSelector());
You may want to optimise that code somewhat, but you get the idea.
Those aren't colors. They are a few nine-patch images out of a StateListDrawable. I am skeptical that there will be a reliable way for you to determine what the color is, one that will work across all devices and all versions of Android.
This is pretty much a duplicate of: Android ListView Selector Color
Also, why do you need to detect the colours? Just do nothing and your widgets will fit in to the platform's existing look & feel.
Or if you're writing a custom theme, just make yours inherit from android:Theme.