UniversalConverter 使用范例

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本文介绍了一种使用UniversalAdapter简化Android应用中RecyclerView适配器开发的方法。通过自定义Adapter和ViewHolder，实现了数据项的点击监听，并展示了如何在Fragment中设置布局、初始化RecyclerView及配置适配器。

package com.zkk.test_universal;

import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.raizlabs.universaladapter.ViewHolder;
import com.raizlabs.universaladapter.converter.ItemClickedListener;
import com.raizlabs.universaladapter.converter.UniversalAdapter;
import com.raizlabs.universaladapter.converter.UniversalConverter;
import com.raizlabs.universaladapter.converter.UniversalConverterFactory;

/**
 * Created by Administrator on 2015/7/13.
 */
public class MyFragment extends Fragment {
    private MyAdapter adapter;
    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        return inflater.inflate(R.layout.activity_recyclerview, container, false);
    }

    @Override
    public void onViewCreated(View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);
        RecyclerView recyclerView= (RecyclerView) view;
        recyclerView.setLayoutManager(new LinearLayoutManager(view.getContext()));
        adapter=new MyAdapter();
        MenuModelHolder modelHolder1=new MenuModelHolder();
        modelHolder1.title="aa";
        modelHolder1.isMerged=true;
        modelHolder1.hasHF=true;
        modelHolder1.isMultipleItems=false;
        adapter.add(modelHolder1);

        MenuModelHolder modelHolder2=new MenuModelHolder();
        modelHolder2.title="aabb";
        modelHolder2.isMerged=false;
        modelHolder2.hasHF=false;
        modelHolder2.isMultipleItems=false;
        adapter.add(modelHolder2);

        UniversalConverter converter= UniversalConverterFactory.create(adapter,recyclerView);
        converter.setItemClickedListener(new ItemClickedListener() {
            @Override
            public void onItemClicked(UniversalAdapter adapter, Object o, ViewHolder holder, int position) {
                MenuModelHolder model= (MenuModelHolder) o;
                Log.i("zhouke","itemClick"+model.getTitle());
            }
        });

    }
}

package com.zkk.test_universal;

import android.view.View;
import android.view.ViewGroup;
import android.widget.TextView;

import com.raizlabs.universaladapter.ListBasedAdapter;
import com.raizlabs.universaladapter.ViewHolder;

/**
 * Created by Administrator on 2015/7/13.
 */
public class MyAdapter extends ListBasedAdapter<MenuModelHolder, MenuHolder> {
    @Override
    protected MenuHolder onCreateViewHolder(ViewGroup parent, int itemType) {
        return new MenuHolder(inflateView(parent, R.layout.list_item_menu));
    }

    @Override
    protected void onBindViewHolder(MenuHolder viewHolder, MenuModelHolder menuModelHolder, int position) {
        viewHolder.Title.setText(menuModelHolder.getTitle());
    }

    @Override
    public int getItemViewType(int position) {
        return super.getItemViewType(position);
    }
}

class MenuModelHolder {

    public String title;

    public boolean isMerged;

    public boolean hasHF;

    public boolean isMultipleItems;

    public int layoutResId;

    public String getTitle() {
        return title + (isMerged ? " - Merged" : "") + (hasHF ? " - Header + Footers" : "") + (isMultipleItems ? " - Multiple Item Types" : "");
    }
}

class MenuHolder extends ViewHolder {

    TextView Title;

    public MenuHolder(View itemView) {
        super(itemView);

        Title = ((TextView) itemView);
    }
}

package com.zkk.test_universal;

import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;


public class MainActivity extends ActionBarActivity {
    static final String TAG_MENU_FRAGMENT = "MenuFragment";
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        if (getSupportFragmentManager().findFragmentByTag(TAG_MENU_FRAGMENT) == null) {
            getSupportFragmentManager().beginTransaction().add(R.id.container,new MyFragment(),TAG_MENU_FRAGMENT).commit();
        }

    }
}

activity_main

<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/container"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin">

</FrameLayout>

activity_recycleview

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.RecyclerView
    android:id="@+id/content"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"/>

list_item_menu:

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
          android:textSize="15dp"
          android:padding="8dp"
          android:layout_width="match_parent"
          android:layout_height="wrap_content"/>