我正在尝试制作自定义列表视图。每个列表视图条目都将有一个ImageView、一个TextView和一个RadioButton。我终于制作好了列表,但现在我在选择单选按钮时遇到了问题。
我想要的是,无论用户在条目的哪个位置点击,都应该设置相应的单选按钮,并自动取消列表中的其他单选按钮。
以下是我的代码: bus_item.xml:-
我想要的是,无论用户在条目的哪个位置点击,都应该设置相应的单选按钮,并自动取消列表中的其他单选按钮。
以下是我的代码: bus_item.xml:-
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="horizontal" >
<ImageView
android:id="@+id/imglist_icon"
android:layout_width="40dp"
android:layout_height="40dp"
android:layout_gravity="center_vertical"
android:layout_margin="10dp"
android:src="@drawable/alaknanda" />
<TextView
android:id="@+id/txtlist_name"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="match_parent"
android:gravity="center_vertical"
android:text="Alaknanda"
android:textSize="22sp"
android:textStyle="bold" />
<RadioButton
android:id="@+id/radio_list"
android:focusable="false"
android:focusableInTouchMode="false"
android:layout_margin="10dp"
android:layout_width="wrap_content"
android:layout_height="match_parent" />
</LinearLayout>
BusListActivity.java :-
package com.hpubts50.hpubustrackerserver;
import android.app.ListActivity;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.RadioButton;
import android.widget.TextView;
public class BusListActivity extends ListActivity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_bus_list);
// Setting List Adapter for custom list
setListAdapter(new MyBusListAdapter(this, android.R.layout.simple_list_item_1, R.id.txtlist_name, getResources().getStringArray(R.array.HPU_Buses)));
}
@Override
protected void onListItemClick(ListView l, View v, int position, long id) {
// TODO Auto-generated method stub
//super.onListItemClick(l, v, position, id);
Log.e("MYTAG",""+position);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.bus_list, menu);
return true;
}
// Custom Adapter inner class for custom list
private class MyBusListAdapter extends ArrayAdapter<String> {
public MyBusListAdapter(Context context, int resource, int textViewResourceId, String[] strings) {
super(context, resource, textViewResourceId, strings);
// TODO Auto-generated constructor stub
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
Log.e("MYTAG","one");
LayoutInflater inflater = (LayoutInflater) getSystemService(Context.LAYOUT_INFLATER_SERVICE);
View row = inflater.inflate(R.layout.bus_item, parent, false);
String[] items = getResources().getStringArray(R.array.HPU_Buses);
Log.e("MYTAG","two");
ImageView imglist_icon = (ImageView) row.findViewById(R.id.imglist_icon);
TextView txtlist_name = (TextView) row.findViewById(R.id.txtlist_name);
RadioButton radio_list = (RadioButton) row.findViewById(R.id.radio_list);
Log.e("MYTAG","three");
txtlist_name.setText(items[position]);
Log.e("MYTAG","four");
if (items[position].equals("Alakananda")) {
imglist_icon.setImageResource(R.drawable.alaknanda);
} else if (items[position].equals("Alakananda")) {
imglist_icon.setImageResource(R.drawable.alaknanda);
}else if (items[position].equals("Chetanya")) {
imglist_icon.setImageResource(R.drawable.chetanya);
}else if (items[position].equals("Garuda")) {
imglist_icon.setImageResource(R.drawable.garuda);
}else if (items[position].equals("Nandi")) {
imglist_icon.setImageResource(R.drawable.nandi);
}else if (items[position].equals("Neela")) {
imglist_icon.setImageResource(R.drawable.neela);
}
Log.e("MYTAG","five");
return row;
}
}
}
activity_bus_list.xml:
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
tools:context=".BusListActivity" >
<ListView
android:id="@android:id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content" >
</ListView>
</LinearLayout>
RadioGroup
使项目只能被选择一次:http://developer.android.com/intl/es/reference/android/widget/RadioGroup.html - Sonhja