Android studio circle seekbar

Android CircularSeekBar Custom View/Widget

This is a custom circular SeekBar. It can be used to create SeekBars that are:

In addition, it is fully customizable via XML attributes, far beyond the default values.

Support and Testing

Tested and working on Android 2.3+.

Tested on the following devices:

-HTC One Google Edition (Android 4.3)

-HTC One X (AT&T, Android 4.1)

-Galaxy Nexus (Android 4.3)

-Emulator with Android versions 2.3-4.2.

CircularSeekBar has also been tested with normal scrolling. It was also been tested successfully with Fragments, as well as scrolling tabs + Fragments.

Known Issues: -The glow effect around the progress part of the circle will not show up on Android 4.0+. This is due to the BlurMaskFilter not working when hardware acceleration is on. Android OS issue.

1) Add Source Files to Project

There are two files you need to include: -CircularSeekBar.java -attrs.xml

Place the attrs.xml file inside of your res/values directory.

Place CircularSeekBar.java inside of the src folder with the entire directory structure included:

2) Customize Source Files

To use any methods inside if your classes, you must import the correct file. Add this to any classes you want to programmatically use the CircularSeekBar in:

You also need to add the import for the generated R class to the CircularSeekBar class. You need to change the top of the CircularSeekBar.java file to look like this:

where «com.example.yourappname» depends on your project/app. Eclipse may offer to add this import for you.

3) Add CircularSeekBar to Your Layout

Start by adding this to the root of your layout xml file(s):

After you add it, the root of your layout xml file(s) should look SIMILAR to this:

To add the basic CircularSeekBar to your layout, add this to your layout xml file(s) where desired:

For further configuration, such as color, sizes, and angle, you can specify many attributes associated with the CircularSeekBar, such as:

Note: all sizes are measured in DEGREES or DP. No pixels are used.

You can also change the standard Android view attributes, such as:

To use the CircularSeekBar programmatically, you can treat it like a normal SeekBar inside of your code:

To use the listener to detect progress changes, first add the import for the class at the top of your file:

Next, create a listener that implements the OnCircularSeekBarChangeListener:

Then create a new instance of it and set it for your seekbar:

All Available Attributes

progress — Integer Value.

max — Integer Value.

move_outside_circle — True/False. Default is false. In the case that the user has already touched down on the CircularSeekBar and is adjusting the progress, this determines whether or not movement outside the circle is accepted and adjusted the progress.

start_angle — Decimal Value. Start angle of the circle. Angles are relative to 3 o’clock (positive X axis).

end_angle — Decimal Value. End angle of the circle. Angles are relative to 3 o’clock (positive X axis).

maintain_equal_circle — True/False. Default is true. This controls whether or not an ellipse shape is available. Ellipses are not accurate in terms of representing progress, so be aware of that when you set this to false. Default value is true.

use_custom_radii — True/False. Default is false. If true, then you can specify radii using attributes. No matter what is specified, they will not exceed the bounds of the View itself. If false, then the View size (android:layout_width and android:layout_height) is used.

lock_enabled — True/False. Default is true. If true, then the progress will «stick» to the start/end point. If false, it’ll just pass through.

circle_x_radius — Decimal Value. Custom X radius in DP.. Requires use_custom_radii to be true.

circle_y_radius — Decimal Value. Custom Y radius in DP. Requires use_custom_radii to be true.

circle_stroke_width — Decimal Value. Defines the width of the circle ring in DP.

pointer_radius — Decimal Value. Defines the radius of the pointer in DP.

pointer_halo_width — Decimal Value. Defines the width of the pointer halo in DP. Note: This is NOT a radius; it is in addition to the pointer radius.

pointer_halo_border_width — Decimal Value. Defines the width of the pointer halo border in DP. Note: This is NOT a radius; it is in addition to the pointer radius. The border shows up when the user is touching the CircularSeekBar.

circle_color — String value. Hex color value, can be #RRGGBB or #AARRGGBB (where AA is the alpha value).

circle_progress_color — String value. Hex color value, can be #RRGGBB or #AARRGGBB (where AA is the alpha value).

pointer_color — String value. Hex color value, can be #RRGGBB or #AARRGGBB (where AA is the alpha value).

pointer_halo_color — String value. Hex color value, can be #RRGGBB or #AARRGGBB (where AA is the alpha value). If no alpha is included, it defaults to 200 (out of 255).

pointer_alpha_ontouch — Integer value. When the user touches the CircularSeekBar, the opacity/alpha of the pointer halo changes to this value. Defaults to 100 (out of 255).

All Available Methods

The methods available to View are all present, as well as some custom methods that allow customization programmatically:

setProgress and getProgress

setCircleColor and getCircleColor

setCircleProgressColor and getCircleProgressColor

setPointerColor and getPointerColor

setPointerHaloColor and getPointerHaloColor

setPointerAlpha and getPointerAlpha

setPointerAlphaOnTouch and getPointerAlphaOnTouch

setLockEnabled and isLockEnabled

Note: Changes made with these methods are persisted by saving state.

Inspired and Guided By

Although I did not used the code from either project directly, they were both used as reference material, and as a result, were extremely helpful.

Content originally by: devadvance (+Matt Joseph)

About

Custom circular SeekBar (Circle, Semi-circle, and Ellipse) View/Widget for Android

Источник

Android studio circle seekbar

What is a SeekArc?

So what the heck is a SeekArc? Essentially it’s a SeekBar that has been wrapped around a circle. It acts like a SeekBar and generally has the same settings. You can even add a Listener to it as you would with a SeekBar. So if its in a circle why not call it a SeekCircle? The answer is that the SeekArc does have a few more setting than the SeekBar one of these is the sweepAngle, which means that the SeekArc doesn’t have to be drawn as a full circle, and can be drawn as a circle, semi-circle or quarter arc or whatever you like. Supports min SDK 8.

Using the SeekArc

Using the SeekArc is straightforward. There are a number of settings from sweep angle to rotation that can be set. One of the less obvious settings is the radius or diameter of the SeekArc. When I developed the SeekArc I thought about adding an attribute for defining the diameter of the circle. In the end I decided against this. I thought a more flexible approach would be to allow the SeekArc to expand to the size of its container layout. This way the SeekArc can grow in size with a layout that has widths or heights of match parent. Also it is still possible to set the SeekArc to a specific size by setting the container layouts width and height to specific dp values. This sizing approach gives the best of both worlds. To further adjust how the arc fits in its container a padding attribute can also be used.

To help with understanding how to use the SeeekArc I’ve put together a sample app with a number of controls that can be used to adjust the attributes of the SeekArc. This is by far the best way to get a good understanding of how to use the SeekArc. From the sample app you’ll see that it is possible to set attributes such as:

Sweep angle
Rotation
Clockwise (which way do you want the progress to increase clockwise/anticlockwise),
Arc and progress width
Rounded corners
Touch inside enable/disable.
Enabled — enables/disables touch and the thumbnail

To use it in your code

Simply add the View to your layout (There are several custom attributes)

Adding to your project

This library is not yet released in Maven Central, until then you can add as a library module or use JitPack.io.

Add remote maven url

Now add a library dependency (remember to check for latest release)

After a long hiatus we’ve recently integrated many of the PRs/changes submitted by others so a big thanks for all the contributions. We’ll endevour to respond to PRs and updates quicker in future. The following changes have been included in v1.1.

converted to gradle
latest Android SDK/tools
removed dependency on color that holo blue that caused issues on API

You can see the SeekArc working in the sample application. Just check out the library and sample application as two separate projects and import them into eclipse. Make sure that the Sample app is setup to correctly use the library project. The sample app will let you explore the attributes that can be set on the SeekArc.

Источник

Android studio circle seekbar

Rich feature Circular SeekBar (Circle, Semi-circle, and Ellipse) for Android.

This library is based on CircularSeekBar of Matt Joseph (devadvance). But the original author seems to have stopped maintaining (last commit was in 2016), so I decide to take it up by myself.

I made it build on Android Studio (Gradle), then fix & add more features to the library.

The features I add

Support float progress, instead of integer only.
Refactor the name of the attributes, to avoid conflicts.
Disable the seek pointer, make it work like a circular progress bar.
Some other bug fixes for Matt’s CircularSeekBar.
Customize the shape of progress end (butt, round, square)
Use a arc to represent the pointer, you can custom the arc angle.
Negative progress support.
Other small features.

Copy sources and attrs.xml in module circularSeekBar to your project.

CircularSeekBar support following attributes:

This library is based on CircularSeekBar of Matt Joseph (devadvance). But the original author seems to have stopped maintaining (last commit was in 2016), so I decide to take it up by myself. Thanks to Matt for the work!

This part provides general solution to any types of libraries:

GitHub Actions: Quick Start, Workflow commands and Upload Release Asset repo are official documents I use to write the CI check and releasing workflows.
Márton B.: Publishing Android libraries to MavenCentral in 2021: It is a great learning material for how to upload library to sonatype maven central. Another post (LINK) also could used as a reference.
Official Maven Central document Gradle to learn how to publish artifacts.
Signature: Maven Central requires signature for library to release. GPG and The Signing Plugin are two official document for how to sign the library, this will correct some error or outdated information in Márton’s article.
Also Timber of Jake Wharton is a great library to learn how to use a generic solution for public libraries. My mvn-push.gradle is actually forked from Timber repo, and it’s really universal that could be used on many different types of libraries.

About

Custom circular SeekBar (Circle, Semi-circle, and Ellipse) for Android

Источник

Android studio circle seekbar

SeekBar (Слайдер)

Меняем задний фон экрана

Дополнительное чтение

Android studio circle seekbar

About

Android studio circle seekbar

Android studio circle seekbar

About