Gridview实现银行选择列表

package com.example.activitydemo;

import android.os.Bundle;
import android.view.View;
import android.widget.AdapterView;
import android.widget.GridView;
import android.widget.RadioButton;
import android.widget.AdapterView.OnItemClickListener;
import android.app.Activity;

public class MainActivity extends Activity {

private Adapter gAdapter;
private GridView gBankLogo;
private int lastPosition = -1;
private View lastView;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
gBankLogo = (GridView)findViewById(R.id.gridView1);
gAdapter = new Adapter(this);
//TEST
for (int i = 0; i < 12; i++) {
String bank = "" ;
gAdapter.addObject("bank"+i, bank);
}
gBankLogo.setAdapter(gAdapter);
gBankLogo.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
if (lastPosition == position)
return;
if (lastPosition != position) {
if (lastPosition == -1) {
RadioButton tmp = (RadioButton) view.findViewById(R.id.rSelect);
tmp.setChecked(true);
lastView = view;
lastPosition = position;
} else {
RadioButton tmp = (RadioButton) view.findViewById(R.id.rSelect);
tmp.setChecked(true);
RadioButton tmp1 = (RadioButton) lastView.findViewById(R.id.rSelect);
tmp1.setChecked(false);
lastView = view;
lastPosition = position;
}
}
}
});
}
}

package com.example.activitydemo;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.RadioButton;

public class Adapter extends BaseAdapter {
private ViewHolder holder;
private LayoutInflater mLayoutInflater;
private static Map<String, Object> M = new HashMap<String, Object>();
private static List<String> L = new ArrayList<String>();

public Adapter(Context context) {
mLayoutInflater = LayoutInflater.from(context);

}

public void addObject(String key, String bank) {
if (!L.contains(key)) {
L.add(key);
}
M.put(key, bank);
this.notifyDataSetChanged();
}

public void removeObject(String key) {
M.remove(key);
L.remove(key);
this.notifyDataSetChanged();
}

public void removeAllObject() {
if (getCount() != 0) {
M.clear();
L.clear();
this.notifyDataSetChanged();
}
}

public void removeAllSelect() {
if (getCount() != 0) {
holder.rSelect.setChecked(false);
this.notifyDataSetChanged();
}
}

@Override
public int getCount() {
// TODO Auto-generated method stub
return M.size();
}

@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return M.get(L.get(position));
}

@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}

@Override
public View getView(final int position, View convertView, ViewGroup parent) {
// TODO Auto-generated method stub
if (convertView == null) {
holder = new ViewHolder();
convertView = mLayoutInflater.inflate(R.layout.item_msgbanklogo,
null);
holder.iBankLogo = (ImageView) convertView
.findViewById(R.id.iBankLogo);
holder.rSelect = (RadioButton) convertView
.findViewById(R.id.rSelect);
holder.iBankLogo.setClickable(false);
holder.rSelect.setClickable(false);
convertView.setTag(holder);
} else {
holder = (ViewHolder) convertView.getTag();
}
holder.iBankLogo.setImageResource(R.drawable.abc);
return convertView;
}
}

package com.example.activitydemo;

import android.widget.ImageView;
import android.widget.RadioButton;

public class ViewHolder {
ImageView iBankLogo;
RadioButton rSelect;
}