MERV

MERV (Multi Expandable RecyclerView) is library that you can use it for nested expandable RecyclerView.

Installation

Step 1. Add the JitPack repository to your build file

Add it in your root build.gradle at the end of repositories:

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

Step 2. Add the dependency

dependencies {
       implementation 'com.github.rvhamed:merv:v1.0-beta01'
}

Usage

Step 1. Add MervView to your layout

<com.hamedrahimvand.merv.MervView
        android:id="@+id/mervView"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        />

Step 2. Create an object of MervView and find MervView by id

MervView mervView = findViewById(R.id.mervView);

Step 3. Generate an MervAdapter and set a listener, when item clicked

final MervAdapter mervAdapter = new MervAdapter(getMervs(), new MervClick.OnItemClickListener() {
            @Override
            public void OnItemClick(MervModel mervModel) {
                Toast.makeText(MainActivity.this,mervModel.getName(),Toast.LENGTH_SHORT).show();
            }
        });

Step 4. Be Optional, Create your own config for list.

 mervAdapter.setMervConfig( new MervConfig.MervConfigBuilder()
     .rotationCollapse(0)
     .rotationExpand(90) 
     .sideDrawable(ContextCompat.getDrawable(this,R.drawable.ic_launcher_foreground))                
     .textColor(ContextCompat.getColor(this,R.color.colorPrimaryDark)).build());

Step 5. At least, set adapter to MervView

mervView.setMervAdapter(mervAdapter);

Sample Data, Nested ArrayList with MervModel

    private ArrayList<MervModel> getMervs() {
        ArrayList<MervModel> mervModels = new ArrayList<>();
        MervModel a1 = new MervModel(0,"a1",false,true,false);
        MervModel a2 = new MervModel(1,"a2",false,true,false);
        MervModel a3 = new MervModel(2,"a3",false,false,false);
        MervModel b1 = new MervModel(3,"b1",true,false,false);
        MervModel b2 = new MervModel(4,"b2",true,false,false);
        MervModel b3 = new MervModel(5,"b3",true,true,false);
        MervModel b4 = new MervModel(5,"b4",true,false,false);
        MervModel b5 = new MervModel(5,"b5",true,false,false);
        MervModel c1 = new MervModel(6,"c1",true,false,false);
        MervModel c2 = new MervModel(6,"c2",true,false,false);
        MervModel c3 = new MervModel(6,"c3",true,false,false);
        MervModel c4 = new MervModel(6,"c4",true,false,false);
        MervModel c5 = new MervModel(6,"c5",true,false,false);

        a1.setChildList(new ArrayList<MervModel>());
        a2.setChildList(new ArrayList<MervModel>());
        b2.setChildList(new ArrayList<MervModel>());
        b3.setChildList(new ArrayList<MervModel>());

        b3.getChildList().add(c1);
        b3.getChildList().add(c2);
        b3.getChildList().add(c3);
        b3.getChildList().add(c4);
        b3.getChildList().add(c5);

        a2.getChildList().add(b2);
        a2.getChildList().add(b3);
        a2.getChildList().add(b4);
        a2.getChildList().add(b5);
        a1.getChildList().add(b1);


        mervModels.add(a1);
        mervModels.add(a2);
        mervModels.add(a3);

        return mervModels;
    }

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.