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AlphabetIndex Fast Scroll RecyclerView

A Powerful AlphabetIndex FastScroller for Android's RecyclerView!

AlphabetIndex-Fast-Scroll-RecyclerView - Example1 AlphabetIndex-Fast-Scroll-RecyclerView - Example2 AlphabetIndex-Fast-Scroll-RecyclerView - Example3

Kindly use the following links to use this library:

In build.gradle (Project)

allprojects {
    repositories {
        ...
        maven { url "https://jitpack.io" }
    }
}

And then in the other gradle file(may be your app gradle or your own module library gradle, but never add in both of them to avoid conflict.)

dependencies {
    // AppCompat version
       implementation 'com.github.myinnos:AlphabetIndex-Fast-Scroll-RecyclerView:1.0.92'
	or
    // AndroidX version
       implementation 'com.github.myinnos:AlphabetIndex-Fast-Scroll-RecyclerView:1.0.94'
}

How to use

Step 1: add this to your xml:

<in.myinnos.alphabetsindexfastscrollrecycler.IndexFastScrollRecyclerView
    android:id="@+id/fast_scroller_recycler"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />

Step 2: implement SectionIndexer to RecyclerViewAdapter.

public class RecyclerViewAdapter extends RecyclerView.Adapter<ViewHolder> implements SectionIndexer {

private List<String> mDataArray;
private ArrayList<Integer> mSectionPositions;
    
.....
    
@Override
public int getSectionForPosition(int position) {
    return 0;
}
 
@Override
public Object[] getSections() {
    List<String> sections = new ArrayList<>(26);
    mSectionPositions = new ArrayList<>(26);
    for (int i = 0, size = mDataArray.size(); i < size; i++) {
        String section = String.valueOf(mDataArray.get(i).charAt(0)).toUpperCase();
        if (!sections.contains(section)) {
            sections.add(section);
            mSectionPositions.add(i);
        }
    }
    return sections.toArray(new String[0]);
}
 
@Override
public int getPositionForSection(int sectionIndex) {
    return mSectionPositions.get(sectionIndex);
}
    
}

Note: mDataArray: this is your recycler data array model.

Features

  • Change IndexTextSize:
 mRecyclerView.setIndexTextSize(12);
  • Change IndexBarTextColor:
 mRecyclerView.setIndexBarTextColor("#FFFFFF");

 mRecyclerView.setIndexBarTextColor(R.color.index_bar_text_color);
  • Change IndexBarColor:
 mRecyclerView.setIndexBarColor("#33334c");

 mRecyclerView.setIndexBarColor(R.color.index_bar_color);
  • Change IndexBarCornerRadius:
 mRecyclerView.setIndexBarCornerRadius(3);
  • Change IndexBarTransparentValue:
mRecyclerView.setIndexBarTransparentValue((float) 0.4);
  • Change IndexbarMargin:
 mRecyclerView.setIndexbarMargin(4);
  • Change IndexbarWidth:
 mRecyclerView.setIndexbarWidth(40);
  • Change PreviewPadding:
 mRecyclerView.setPreviewPadding(2);
  • Change PreviewVisibility:
 mRecyclerView.setPreviewVisibility(false);
  • Change Typeface:
 Typeface typeface = Typeface.createFromAsset(context.getAssets(), "Custom-Font.ttf");
 mRecyclerView.setTypeface(typeface);
  • To hide/show Fast Scroll IndexBar:
mRecyclerView.setIndexBarVisibility(true);
  • Change IndexBarHighLateTextColor:
mRecyclerView.setIndexbarHighLateTextColor("#33334c);

mRecyclerView.setIndexbarHighLateTextColor(R.color.index_bar_highlight_text_color);
  • To hide/show IndexBarHighLateText:
mRecyclerView.setIndexBarHighLateTextVisibility(true);

Compatibility

This library works with any layout manager but is optimized for the use with a LinearLayoutManager.

Any Queries? or Feedback, please let me know by opening a new issue!

Contact

Prabhakar Thota

Special Contributors

@jonas-arkulpa
@MFlisar
@RaphaelMarion
@appspell
@Libernys

License

Copyright 2017 MyInnos

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.