progresspageindicator's Introduction

ProgressPageIndicator

A native library for Android that provides a filling Page Indicator for viewpagers

For a working implementation, Have a look at the Sample Project - app module

Include the library as local library project or get it from jCenter().

add in your dependencies,
```
 compile 'com.siriscac:progresspageindicator:1.1.0'
```
Include the ProgressPageIndicator widget in your layout.

 <com.cepheuen.progresspageindicator.ProgressPageIndicator
      android:id="@+id/pageIndicator"
      android:layout_width="wrap_content"
      android:layout_height="wrap_content"
      app:dotGap="2dp"
      app:fillColor="#cccccc"
      app:radius="8dp" />

Refer the widget from the layout and set the viewpager to it by using setViewPager().

 pagerIndicator = (ProgressPageIndicator) findViewById(R.id.dotsL);
 pagerIndicator.setViewPager(viewPager);

#Customization

There are five attributes which are applicable to ProgressPageIndicator.

strokeRadius Radius of the stroke
dotGap Space between the indicators
strokeColor Color of the Stroke
fillColor Color of the Fill
radius Radius of the indicator
You can also set these attributes from your java code by calling setStrokeColor(strokeColor), setFillColor(fillColor), setRadius(Radius), setStrokeRadius(strokeRadius), setDotGap(dotGap) respectively.

#Compatibility

Android Honeycomb 3.0+

#Changelog

Version: 1.1

Fix NPE on setting Empty Adapters

Version: 1.0

Initial Build

#Author

Muthuramakrishnan - [email protected]

#License

Copyright 2015 Muthuramakrishnan

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.

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progresspageindicator's Issues

Clickable

I am using this for a wizard like flow where it would be nice to be able to jump to pages by clicking on dots. With the default sized dots this doesn't make sense but I am using fairly large dots so it would work. A simple onClickListener that passed the section number (dot number) would be perfect.

Crashes on empty adapter.

Tried adding this to a viewpager that has an adapter with no items in it, and it crashes:

Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.ImageView.setImageDrawable(android.graphics.drawable.Drawable)' on a null object reference
            at com.cepheuen.progresspageindicator.ProgressPageIndicator.fillDots(ProgressPageIndicator.java:222)
            at com.cepheuen.progresspageindicator.ProgressPageIndicator.initialize(ProgressPageIndicator.java:185)
            at com.cepheuen.progresspageindicator.ProgressPageIndicator.setViewPager(ProgressPageIndicator.java:132)
            at com.seguetech.zippy.fragments.MedicineFragment.onCreateView(MyFragment.java:78)

In my fragment:

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.fragment_medicine, container, false);
        viewPager = (ViewPager)v.findViewById(R.id.viewpager);
        imageAdapter = new ImageAdapter();
        viewPager.setAdapter(imageAdapter);
        // crashes on this line.
        ((ProgressPageIndicator)v.findViewById(R.id.pageIndicator)).setViewPager(viewPager); 
    }

The image adapter correctly returns a size of 0, and has no problems waiting for an event to push items into the adapter, where notifyDataSetChanged() is changed, and then the views are populated.

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