构造自己的adapter,在getView中,设置颜色,点击item,刷新listview。
代码:
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import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class MyListView4 extends Activity {
private List<Map<String, Object>> mData;
ListView setlistViewLeft;
MyAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list);
mData = getData();
setlistViewLeft = (ListView)findViewById(R.id.listleft);
adapter = new MyAdapter(this);
setlistViewLeft.setAdapter(adapter);
setlistViewLeft.setOnItemClickListener(mLeftListOnItemClick);
}
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", "G1");
map.put("info", "google 1");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "G2");
map.put("info", "google 2");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "G3");
map.put("info", "google 3");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "G4");
map.put("info", "google 4");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "G5");
map.put("info", "google 5");
list.add(map);
return list;
}
AdapterView.OnItemClickListener mLeftListOnItemClick = new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
adapter.setSelectItem(arg2);
adapter.notifyDataSetInvalidated();
// adapter.notifyDataSetChanged();
}
};
/**
* listview中点击按键弹出对话框
*/
public final class ViewHolder {
public TextView titleText;
public TextView infoText;
}
public class MyAdapter extends BaseAdapter {
private LayoutInflater mInflater;
public MyAdapter(Context context) {
this.mInflater = LayoutInflater.from(context);
}
public int getCount() {
// TODO Auto-generated method stub
return mData.size();
}
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return mData.get(arg0);
}
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
convertView = mInflater.inflate(R.layout.leftview, null);
holder.titleText = (TextView) convertView.findViewById(R.id.titleleftlist);
holder.infoText = (TextView) convertView.findViewById(R.id.infoleftlist);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.titleText.setText((String) mData.get(position).get("title"));
holder.infoText.setText((String) mData.get(position).get("info"));
if (position == selectItem) {
convertView.setBackgroundColor(Color.RED);
}
else {
convertView.setBackgroundColor(Color.TRANSPARENT);
}
//convertView.getBackground().setAlpha(80);
return convertView;
}
public void setSelectItem(int selectItem) {
this.selectItem = selectItem;
}
private int selectItem=-1;
}
}
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import android.app.Activity;
import android.content.Context;
import android.graphics.Color;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ListView;
import android.widget.TextView;
public class MyListView4 extends Activity {
private List<Map<String, Object>> mData;
ListView setlistViewLeft;
MyAdapter adapter;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.list);
mData = getData();
setlistViewLeft = (ListView)findViewById(R.id.listleft);
adapter = new MyAdapter(this);
setlistViewLeft.setAdapter(adapter);
setlistViewLeft.setOnItemClickListener(mLeftListOnItemClick);
}
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", "G1");
map.put("info", "google 1");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "G2");
map.put("info", "google 2");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "G3");
map.put("info", "google 3");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "G4");
map.put("info", "google 4");
list.add(map);
map = new HashMap<String, Object>();
map.put("title", "G5");
map.put("info", "google 5");
list.add(map);
return list;
}
AdapterView.OnItemClickListener mLeftListOnItemClick = new AdapterView.OnItemClickListener() {
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,long arg3) {
adapter.setSelectItem(arg2);
adapter.notifyDataSetInvalidated();
// adapter.notifyDataSetChanged();
}
};
/**
* listview中点击按键弹出对话框
*/
public final class ViewHolder {
public TextView titleText;
public TextView infoText;
}
public class MyAdapter extends BaseAdapter {
private LayoutInflater mInflater;
public MyAdapter(Context context) {
this.mInflater = LayoutInflater.from(context);
}
public int getCount() {
// TODO Auto-generated method stub
return mData.size();
}
public Object getItem(int arg0) {
// TODO Auto-generated method stub
return mData.get(arg0);
}
public long getItemId(int arg0) {
// TODO Auto-generated method stub
return arg0;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
if (convertView == null) {
holder = new ViewHolder();
convertView = mInflater.inflate(R.layout.leftview, null);
holder.titleText = (TextView) convertView.findViewById(R.id.titleleftlist);
holder.infoText = (TextView) convertView.findViewById(R.id.infoleftlist);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.titleText.setText((String) mData.get(position).get("title"));
holder.infoText.setText((String) mData.get(position).get("info"));
if (position == selectItem) {
convertView.setBackgroundColor(Color.RED);
}
else {
convertView.setBackgroundColor(Color.TRANSPARENT);
}
//convertView.getBackground().setAlpha(80);
return convertView;
}
public void setSelectItem(int selectItem) {
this.selectItem = selectItem;
}
private int selectItem=-1;
}
}
android 自定义adapter extends BaseAdapter,做有自己布局的listView
或:
siteListView.setOnItemClickListener(new OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view,int position, long id) {
for(int i=0;i<parent.getCount();i++){
View v=parent.getChildAt(parent.getCount()-1-i);
if (position == i) {
v.setBackgroundColor(Color.RED);
} else {
v.setBackgroundColor(Color.TRANSPARENT);
}
}
}
});
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posted on 2011-01-25 17:10
ZhipSoft 阅读(12254)
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