ListView

来源：互联网发布：类似我要当学霸的知乎编辑：程序博客网时间：2024/05/27 00:47

那么简单每次都记不住。

package com.example.hejingzhou.listviewbuttondemo;import android.content.Context;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.util.Log;import android.view.View;import android.widget.AdapterView;import android.widget.ArrayAdapter;import android.widget.Button;import android.widget.ListView;import android.widget.Toast;import java.util.ArrayList;public class MainActivity extends AppCompatActivity {    private String TAG = getClass().getSimpleName();    private ListView lvButton;    private ArrayList<String> arrayList;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        lvButton = (ListView)this.findViewById(R.id.listview);        arrayList = new ArrayList<String>();        final ArrayAdapter<String> arrayAdapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,arrayList);        lvButton.setAdapter(arrayAdapter);        for(int line=0;line<=8;line++){            arrayList.add("LineTable"+line);        }        lvButton.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {                Log.i(TAG, arrayList.get(position));                Log.i(TAG, String.valueOf(arrayAdapter.getItemId(position)));//获取行号                String LineNumber = String.valueOf(arrayAdapter.getItemId(position)+1);                Toast.makeText(getApplicationContext(), "你点击的是：" + arrayList.get(position)+"     行号："+LineNumber, Toast.LENGTH_SHORT).show();            }        });    }}

第二种类型

package com.example.hejingzhou.listviewimagebutton;import android.app.AlertDialog;import android.app.ListActivity;import android.content.Context;import android.content.DialogInterface;import android.os.Bundle;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.ImageView;import android.widget.ListView;import android.widget.TextView;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;public class MainActivity extends ListActivity {    private String TAG= getClass().getSimpleName();    private List<Map<String,Object>> mData;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        mData = getData();        MyAdapter adapter = new MyAdapter(this);        Log.i(TAG, "onCreate创建适配器还没有出错");        setListAdapter(adapter);    }    private List<Map<String, Object>> getData() {        List<Map<String,Object>> list = new ArrayList<Map<String,Object>>();        Map<String,Object> map = new HashMap<String,Object>();        map.put("title", "我的名片");        map.put("twoTitle", "副标题");        map.put("image", R.drawable.mymessage);        list.add(map);        Log.i(TAG, "getData()方法没有出错");        map = new HashMap<String, Object>();        map.put("title", "定时关机");        map.put("twoTitle", "");        map.put("image", R.drawable.time);        list.add(map);        Log.i(TAG, "getData()方法没有出错");        map = new HashMap<String, Object>();        map.put("title", "搜索数据");        map.put("twoTitle", "");        map.put("image", R.drawable.index);        list.add(map);        Log.i(TAG, "getData()方法没有出错");        map = new HashMap<String, Object>();        map.put("title", "附近景点");        map.put("twoTitle", "");        map.put("image", R.drawable.view);        list.add(map);        Log.i(TAG,"getData()方法没有出错");        /**         * 如果这样加载多了 就出现OOM了   ⊙﹏⊙‖∣°   ⊙﹏⊙‖∣°         * 问题需要解决         */        /*map = new HashMap<String, Object>();        map.put("title", "地图指南");        map.put("twoTitle", "");        map.put("image", R.drawable.guide);        list.add(map);        Log.i(TAG,"getData()方法没有出错");        map = new HashMap<String, Object>();        map.put("title", "驾车路线");        map.put("twoTitle", "");        map.put("image", R.drawable.cat);        list.add(map);        Log.i(TAG,"getData()方法没有出错");*/        return list;    }    @Override    protected void onListItemClick(ListView l, View v, int position, long id) {        super.onListItemClick(l, v, position, id);        Log.v("我的单击监听", (String) mData.get(position).get("title"));    }    private void showButton() {        new AlertDialog.Builder(this)                .setTitle("标题")                .setMessage("我的ListView")                .setPositiveButton("确定", new DialogInterface.OnClickListener() {                    @Override                    public void onClick(DialogInterface dialog, int which) {                    }                }).show();    }    public final class ViewHolder{        public ImageView image;        public TextView title;        public TextView twoTitle;        public Button button;    }    public class MyAdapter extends BaseAdapter{        private LayoutInflater inflater;        public MyAdapter(Context context){            this.inflater = LayoutInflater.from(context);        }        @Override        public int getCount() {            return mData.size();        }        @Override        public Object getItem(int position) {            return null;        }        @Override        public long getItemId(int position) {            return 0;        }        @Override        public View getView(int position, View convertView, ViewGroup parent) {            ViewHolder holder;            if(convertView == null){                holder = new ViewHolder();                convertView = inflater.inflate(R.layout.activity_main,null);                holder.image = (ImageView)convertView.findViewById(R.id.image_);                holder.title = (TextView)convertView.findViewById(R.id.title_);                holder.twoTitle = (TextView)convertView.findViewById(R.id.twoTitle_);                holder.button = (Button)convertView.findViewById(R.id.button_);                convertView.setTag(holder);                Log.i(TAG,"关联布局没有出错");            }else {                holder = (ViewHolder)convertView.getTag();            }            Log.i(TAG, "关联布局后获取posititon值之前还没有报错");            holder.image.setBackgroundResource((Integer) mData.get(position).get("image"));            holder.title.setText((String) mData.get(position).get("title"));            holder.twoTitle.setText((String)mData.get(position).get("twoTitle"));            Log.i(TAG,"获取position值之后没有错误");            holder.button.setOnClickListener(new View.OnClickListener() {                @Override                public void onClick(View v) {                    showButton();                }            });            return convertView;        }    }}

源码：http://download.csdn.net/detail/csdnhejingzhou/9456651

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