ColorMixer For Android:

Introduction:

Sometimes, you want your users to pick a color. A simple approach is to give the user a fixed roster of a handful of colors -- easy, but limited. A fancy approach is to use some form of color wheel, but these can be difficult to use on a touchscreen and perhaps impossible without a touchscreen.

ColorMixer is a widget that provides a simple set of SeekBars to let the user mix red, green, and blue to pick an arbitrary color. It is not very big, so it is easy to fit on a form, and it is still fairly finger-friendly.

It is also packaged as a dialog (ColorMixerDialog), a dialog-themed activity (ColorMixerActivity), and a preference (ColorPreference).

Usage:

• ColorMixer:

ColorMixer is a simple widget. Given that you have the parcel installed in your project, or have manually merged the source and resources into your project, you can add the widget to a layout like any other:

<com.commonsware.cwac.colormixer.ColorMixer
android:id="@+id/mixer"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
/>

You can call getColor() and setColor() to manipulate the color at runtime. You can also call setOnColorChangedListener() to register a ColorMixer.OnColorChangedListener object, which will be called with onColorChanged() when the color is altered by the user.

• ColorMixerDialog:

ColorMixerDialog is an AlertDialog subclass. Hence, to create and show the dialog, all you need to do is create an instance and show() it:

new ColorMixerDialog(this, someColor, onDialogSet).show();

In the above code snippet, this is a Context (e.g., an Activity), someColor is the color you want to start with, and onDialogSet is a ColorMixer.OnColorChangedListener that will be notified if the user clicks the "Set" button on the dialog and has changed the color from the initial value.

• ColorMixerActivity:

ColorMixerActivity is a dialog-themed Activity. This is useful for situations where you want a dialog but do not want to deal with a dialog.

To use it, add it as an activity to your project. You will need to use the full package in your <activity> element, marking it as using Theme.Dialog. Here is one implementation, from the demo/ project:

<activity android:name="com.commonsware.cwac.colormixer.ColorMixerActivity"
android:label="@string/app_name"
android:theme="@android:style/Theme.Dialog">
</activity>

In the Intent you use to start the activity, you can supply the starting color via a ColorMixerActivity.COLOR integer extra, and the dialog title via a ColorMixerActivity.TITLE string extra. For example:

Intent i=new Intent(this, ColorMixerActivity.class);
i.putExtra(ColorMixerActivity.TITLE, "Pick a Color");
i.putExtra(ColorMixerActivity.COLOR, mixer.getColor());
startActivityForResult(i, COLOR_REQUEST);

• ColorPreference:

ColorPreference is a Preference class, to be referenced in preference XML and loaded into a PreferenceActivity. It has no attributes beyond the standard ones.

<PreferenceScreen
xmlns:android="http://schemas.android.com/apk/res/android">
<com.commonsware.cwac.colormixer.ColorPreference
android:key="favoriteColor"
android:defaultValue="0xFFA4C639"
android:title="Your Favorite Color"
</PreferenceScreen>

The preference is stored as an integer under the key you specify in the XML.

• Dependencies:

This depends upon the cwac-parcel library for accessing project-level resources Which is already included in ColorMixer Library. Include ColorMixerLibrary.

• Reference Link:

     https://github.com/commonsguy/cwac-colormixer/downloads

             https://github.com/commonsguy/cwac-colormixer#usage