android listview分组 示例

【实例截图】

【核心代码】

package com.tuacy.grouplistview;

import android.content.Context;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;

import com.tuacy.grouplistview.base.MobileBaseAdapter;
import com.tuacy.grouplistview.base.MobileCategoryAdapter;
import com.tuacy.grouplistview.base.ViewHolder;

import java.util.ArrayList;
import java.util.List;


public class MainActivity extends AppCompatActivity {

	private ListView              mListView   = null;
	private List<String>          mPcList     = new ArrayList<>();
	private List<String>          mMobileList = new ArrayList<>();
	private MobileCategoryAdapter mAdapter    = null;
	private Context               mContext    = null;

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		mContext = this;
		initView();
		initData();
		initEvent();
	}

	private void initView() {
		mListView = (ListView) findViewById(R.id.lv_listview);
	}

	private void initData() {
		mPcList.add("PC0");
		mPcList.add("PC1");
		mPcList.add("PC2");
		mMobileList.add("Mobile0");
		mMobileList.add("Mobile1");
		mMobileList.add("Mobile2");
		/** PC list adapter */
		MobileBaseAdapter pcDeviceAdapter = new MobileBaseAdapter<String>(mContext, R.layout.item_listview, mPcList) {
			@Override
			public void convert(ViewHolder viewHolder, String item) {
				viewHolder.setBackgroundResource(R.id.imgv_device_icon, R.mipmap.ic_pc);
				viewHolder.setText(R.id.tv_device_name, item);
			}
		};
		/** mobile list adapter */
		MobileBaseAdapter mobileDeviceAdapter = new MobileBaseAdapter<String>(mContext, R.layout.item_listview, mMobileList) {
			@Override
			public void convert(ViewHolder viewHolder, String item) {
				viewHolder.setBackgroundResource(R.id.imgv_device_icon, R.mipmap.ic_mobile);
				viewHolder.setText(R.id.tv_device_name, item);
			}
		};

		mAdapter = new MobileCategoryAdapter(mContext, R.layout.item_listview_group_title) {
			@Override
			protected void convertTitleView(ViewHolder viewHolder, int categoryIndex) {
				switch (categoryIndex) {
					case 0: /** PC  */
						int pcNumber = mPcList.size();
						viewHolder.setText(R.id.textview_device_state, "PC");
						viewHolder.setText(R.id.textview_device_number, String.valueOf(pcNumber));
						break;
					case 1: /** mobile */
						int mobileNumber = mMobileList.size();
						viewHolder.setText(R.id.textview_device_state, "Mobile");
						viewHolder.setText(R.id.textview_device_number, String.valueOf(mobileNumber));
						break;
					default:
						break;
				}
			}
		};
		mAdapter.addCategory(pcDeviceAdapter);
		mAdapter.addCategory(mobileDeviceAdapter);
		mOnItemClickListener.setAdapter(mAdapter);
		mListView.setAdapter(mAdapter);
		mListView.setOnItemClickListener(mOnItemClickListener);
	}

	private void initEvent() {

	}

	private MobileCategoryAdapter.CategoryListClickListener mOnItemClickListener = new MobileCategoryAdapter.CategoryListClickListener() {

		@Override
		public void onTitleClick(AdapterView<?> parent, View view, int categoryIndex) {
			if (mAdapter.isExpand(categoryIndex)) {
				mAdapter.setExpand(categoryIndex, false);
			} else {
				mAdapter.setExpand(categoryIndex, true);
			}
		}

		@Override
		public void onItemClick(AdapterView<?> parent, View view, final int categoryIndex, final int position) {
			switch (categoryIndex) {
				case 0: /** PC  */
					Toast.makeText(mContext, mPcList.get(position), Toast.LENGTH_SHORT).show();
					break;
				case 1: /** mobile */
					Toast.makeText(mContext, mMobileList.get(position), Toast.LENGTH_SHORT).show();
					break;
				default:
					break;
			}
		}
	};
}