Awesome

Veni Divi

This is a library for Android that contains sectioned aciton bar title.

Usage

Using this component is fairly straighforward.

Create VeniDivi object using create factory method:

    private VeniDivi veniDivi;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        // ...
        veniDivi = VeniDivi.create(this);
    }

or customize it using builder:

        veniDivi = VeniDivi.builder(this)
                .root(R.layout.title_root)
                .element(R.layout.custom_element)
                .hideScrollBar()
                .build();

Then make sure to notify it of lifecycle changes in the following methods of your Activity:

• onRestoreInstanceState (or onCreate)
• onSaveInstanceState

    @Override
    protected void onRestoreInstanceState(Bundle savedInstanceState) {
        super.onRestoreInstanceState(savedInstanceState);
        veniDivi.onRestoreInstanceState(savedInstanceState);
    }

    @Override
    protected void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);
        veniDivi.onSaveInstanceState(outState);
    }

And now the fun begins. Every time you go deeper into the hierarchy, call

        veniDivi.addElement(CharSequence element)

To be notified when user wants to go back, create an instance of OnGoBackListener and assign it to VeniDivi object. If you are using fragments put on back stack, your code will be similar to this:

        veniDivi.setOnGoBackListener(new VeniDivi.OnGoBackListener() {
            @Override
            public void onGoBack(int backCount) {
                FragmentManager fm = getFragmentManager();
                while (backCount > 0) {
                    fm.popBackStackImmediate();
                    backCount--;
                }
            }
        });

Most of the time you will also want to block Activity from finishing when there are elements in the title.

    @Override
    public void onBackPressed() {
        if (!veniDivi.goBack()) {
            super.onBackPressed();
        }
    }

Note: when using VeniDivi.goBack or VeniDivi.reset, your OnGoBackListener will also be called, so you can keep your back navigation logic in a single place.

Gradle

The library is available on Maven Central.

dependencies {
    compile 'pl.mg6.veni.divi:veni-divi:0.1'
}

License

The MIT License (MIT)

  Copyright (c) 47 B.C. Maciej Górski

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.