package com.xsjayz.listview0822;
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import android.widget.Toast;
public class ListViewActivity extends Activity {
private String[] moreNames = null;
private ListView listView = null;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
// 在string中定义的字符串数组
moreNames = getResources().getStringArray(R.array.list_array);
// 在main.xml中定义的listview
listView = (ListView) findViewById(R.id.listViewMoreInfo);
// 隐藏ListView的分隔线
listView.setDivider(null);
listView.setAdapter(baseAdapter);
listView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> view, View arg1,
int position, long id) {
switch (position) {
case 0:
toastUtil(ListViewActivity.this, position);
break;
case 1:
toastUtil(ListViewActivity.this, position);
break;
case 2:
toastUtil(ListViewActivity.this, position);
break;
case 3:
toastUtil(ListViewActivity.this, position);
break;
case 4:
toastUtil(ListViewActivity.this, position);
break;
case 5:
toastUtil(ListViewActivity.this, position);
break;
case 6:
toastUtil(ListViewActivity.this, position);
break;
}
}
});
}
/**
* 由于使用了大量的Toast，所以这里将这些Toast封装成一个方法
*
* @param context
* @param position
*/
public void toastUtil(Context context, int position) {
Toast.makeText(context, moreNames[position], 3000).show();
}
/**
* 自定义BaseAdapter，返回隔行换色的视图显示在ListView上。
*/
BaseAdapter baseAdapter = new BaseAdapter() {
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ImageView imageView = null;
TextView textView = null;
// 获得布局文件more_info_my.xml，里面定义了TextView和ImageView两个组件
convertView = LayoutInflater.from(ListViewActivity.this).inflate(
R.layout.more_info_my, null);
textView = (TextView) convertView.findViewById(R.id.mytxt);
imageView = (ImageView) convertView.findViewById(R.id.myimage);
// 设置ListView显示的文字内容和图片
textView.setText(moreNames[position]);
imageView.setImageResource(R.drawable.moreinfo_extend_next);
// 为ListView设置隔行不同的背景颜色
if (position % 2 == 0) {
convertView.setBackgroundDrawable(getResources().getDrawable(
R.drawable.list_item_2));
} else {
convertView.setBackgroundDrawable(getResources().getDrawable(
R.drawable.list_item_1));
}
// 返回的convertView对象将作为ListView的列表项
return convertView;
}
@Override
public long getItemId(int position) {
return 0;
}
@Override
public Object getItem(int position) {
return null;
}
@Override
public int getCount() {
return moreNames.length;
}
};
}
