fragment中自定义listFragment不显示,程序闪退
这是fragment的代码:
package com.example.date4_23;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.zip.Inflater;
import android.support.v4.app.ListFragment;
import android.content.Context;
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.ImageView;
import android.widget.TextView;
public class fragment1 extends ListFragment {
private List<Map<String, Object>> data;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment1, container, false);
Log.v("huahua", "fragment1-->onCreateView()");
// ViewGroup p = (ViewGroup) mMainView.getParent();
// if (p != null) {
// p.removeAllViewsInLayout();
// Log.v("huahua", "fragment1-->移除已存在的View");
// }
return v;
}
@Override
public void onCreate(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onCreate(savedInstanceState);
data = getDate();
Myadapter adapter = new Myadapter(getActivity());
setListAdapter(adapter);
Log.v("huahua", "fragment1-->onCreate()");
}
private List<Map<String, Object>> getDate() {
List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
Map<String, Object> map = new HashMap<String, Object>();
map.put("img", "img1");
map.put("title", "No.1");
map.put("info", "This is raw No.1");
list.add(map);
map = new HashMap<String, Object>();
map.put("img", "img2");
map.put("title", "No.2");
map.put("info", "This is raw No.2");
list.add(map);
return list;
}
static class ViewHolder{
public ImageView img;
public TextView title;
public TextView info;
}
public class Myadapter extends BaseAdapter{
private LayoutInflater mInflater = null;
private Myadapter(Context context){
this.mInflater = LayoutInflater.from(context);
}
@Override
public int getCount() {
// TODO Auto-generated method stub
return data.size();
}
@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return data.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) {
Log.v("getView", "===========================getView=================");
ViewHolder holder = null;
holder = new ViewHolder();
if(convertView == null)
{
convertView = mInflater.inflate(R.layout.list_item, null);
holder.img = (ImageView)convertView.findViewById(R.id.img);
holder.title = (TextView)convertView.findViewById(R.id.title);
holder.info = (TextView)convertView.findViewById(R.id.info);
convertView.setTag(holder);
}else
{
holder = (ViewHolder)convertView.getTag();
}
holder.title.setText((String)data.get(position).get("title"));
holder.info.setText((String)data.get(position).get("info"));
holder.img.setBackgroundResource((Integer)data.get(position).get("img"));
return convertView;
}
}
}
这是布局文件:
fragment1.xml:
<?xml version="1.0" encoding="utf-8"?>
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="#ffffff"
android:orientation="vertical" >
<ListView
android:id="@+id/android:list"
android:layout_width="fill_parent"
android:layout_height="wrap_content" >
</ListView>
item的布局:
list_item.xml:
<?xml version="1.0" encoding="utf-8"?>
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ImageView
android:id="@+id/img"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_margin="5dp" />
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="vertical" >
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="20sp" />
<TextView
android:id="@+id/info"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="14sp" />
</LinearLayout>
Logcat报错: