PickerView is an easy way to create selection menus.

Including to your project

If using Gradle add jcenter or mavenCentral to repositories

    repositories {
        jcenter()
    }

Add to your module dependencies

    dependencies {
        compile 'com.emreeran.pickerview:pickerview:1.0.2'
    }

Adding the PickerView

Just use the view in your layout and set an orientation Add the following line to the following layout xmlns:app="http://schemas.android.com/apk/res-auto" then use the view like the following:

    <com.emreeran.pickerview.PickerView
            android:layout_width="match_parent"
            android:layout_height="50dp"
            app:orientation="horizontal"/>

Additional attributes

• Fit a number of items per screen app:item_per_screen="ITEM_COUNT"

Resizes items so that the specified number of them fit the total view length or height depending on the orientation

• Divider

    app:divider_color="#55000000"
    app:divider_size="2dp"
  

or use

    app:divider_drawable="@drawable/divider_vertical"

Adds dividers between items with given color and width or height depending on the orientation

• Adding an indicator view

A view can be added (for example an arrow) and set as an indicator. It will follow the selected items. Best way to use this is; in a wrapping RelativeLayout use layout_below, layout_above, layout_toRightOf or layout_toLeftOf attributes on determining the relationship between the indicator view and PickerView.

Then assign by pickerView.setIndicator(indicator); or if you want a bounce animation use pickerView.setIndicator(indicator, true);

Setting the adapter

Extend PickerView.Adapter to create your adapter class.

Set your item layouts in onCreateView and manipulate them in onBindView methods.

Implement onViewSelected method to manipulate menu item views on selection.

Implement onPositionSelected method to add functionality to selected positions.

Set the adapter to the view.

    PickerView pickerView = (PickerView) view.findViewById(R.id.horizontal_picker);
    PickerAdapter pickerAdapter = new PickerAdapter();
    pickerView.setAdapter(pickerAdapter);

Starting position can also be set by setAdapter method.

Extras

Call pickerView.scrollToItemPosition to go to an item, it can also get a PickerView.OnScrolledToViewListener parameter to manipulate the target view on scroll.

Usages are demonstrated in the sample project

Credits

Author Emre Eran ([email protected] - https://twitter.com/emreeran)

    Copyright 2015 Emre Eran
    
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.
    You may obtain a copy of the License at
    
        http://www.apache.org/licenses/LICENSE-2.0
    
    Unless required by applicable law or agreed to in writing, software
    distributed under the License is distributed on an "AS IS" BASIS,
    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    See the License for the specific language governing permissions and
    limitations under the License.