这是我的代码：
public class Fragment1 extends SherlockFragment {
ListView lista;
ArrayList<String> items = new ArrayList<String>();
private ArrayList<MyListAdapter> thelista = new ArrayList<MyListAdapter>();
View rootView;
ListView list;
TextView title, price;
MyListAdapter adapter;
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// TODO Auto-generated method stub
super.onCreateOptionsMenu(menu, inflater);
MenuInflater blowup = this.getSherlockActivity()
.getSupportMenuInflater();
blowup.inflate(R.menu.menuxml, menu);
return;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.main, container, false);
ActionBar ab = this.getSherlockActivity().getSupportActionBar();
ab.setTitle("");
title = (TextView) rootView.findViewById(R.id.title);
price = (TextView) rootView.findViewById(R.id.details);
list = (ListView) rootView.findViewById(R.id.list);
SpinnerAdapter mSpinnerAdapter = ArrayAdapter.createFromResource(
this.getSherlockActivity(), R.array.phones_array,
android.R.layout.simple_spinner_dropdown_item);
ab.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
ab.setListNavigationCallbacks(mSpinnerAdapter, null);
StrictMode.enableDefaults();
getData();
return rootView;
}
public void getData() {
String result = "";
InputStream isr = null;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpost = new HttpPost(
"http://10.0.2.2/AndroidArabia/android3arabiya.php");
HttpResponse resposne = httpclient.execute(httpost);
HttpEntity entity = resposne.getEntity();
isr = entity.getContent();
} catch (Exception e) {
Log.e("log_tag", "error in http connection" + e.toString());
Toast.makeText(getSherlockActivity(),
"Couldn't Connect To The Internet", Toast.LENGTH_LONG)
.show();
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
isr, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
isr.close();
result = sb.toString();
} catch (Exception e) {
Log.e("log_tag", "Error converting Result " + e.toString());
}
try {
JSONArray jArray = new JSONArray(result);
for (int i = 0; i < jArray.length(); i++) {
JSONObject json = jArray.getJSONObject(i);
thelista.add(new MyListAdapter(json.getString("PhoneName"),
json.getString("PhonePrice")));
}
list.setAdapter((ListAdapter) thelista);
} catch (Exception e) {
Log.e("lag_tag", "ERROR PARSING DATA" + e.toString());
Toast.makeText(getSherlockActivity(),
"Couldn't Connect To The Internet", Toast.LENGTH_LONG)
.show();
}
MyListAdapter代码：
public class MyListAdapter extends BaseAdapter {
private String[] data;
private String[] data2;
private Context context;
public MyListAdapter(String string, String string2) {
// TODO Auto-generated constructor stub
}
@Override
public int getCount() {
return data.length;
}
@Override
public Object getItem(int position) {
return data[position];
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View rowView = LayoutInflater.from(context).inflate(R.layout.pricelist,
parent, false);
TextView text1 = (TextView) rowView.findViewById(R.id.title);
TextView text2 = (TextView) rowView.findViewById(R.id.details);
text1.setText(data[position]);
text2.setText(data2[position]);
return rowView;
}
}
}
价格表xml：
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:padding="5dip" >
<LinearLayout
android:id="@+id/thumbnail"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_marginRight="5dip"
android:background="@drawable/image_bg"
android:padding="3dip" >
<ImageView
android:id="@+id/list_image"
android:layout_width="50dip"
android:layout_height="50dip" />
</LinearLayout>
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignTop="@+id/thumbnail"
android:layout_toRightOf="@+id/thumbnail"
android:text="Smartphone Name"
android:textColor="#040404"
android:textSize="15dip"
android:textStyle="bold"
android:typeface="sans" />
<TextView
android:id="@+id/details"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:layout_below="@id/title"
android:layout_marginTop="1dip"
android:layout_toRightOf="@+id/thumbnail"
android:text="Smartphone Price"
android:textColor="#343434"
android:textSize="10dip" />
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentRight="true"
android:layout_alignParentTop="true"
android:src="@drawable/rating" />
</RelativeLayout>
最后主要的xml：
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:orientation="vertical" >
<ListView
android:id="@+id/list"
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:divider="#b5b5b5"
android:dividerHeight="1dp" >
</ListView>
</LinearLayout>
我不是自定义布局的专家，但是在将JSON数组解析为自定义列表视图时遇到错误。当然，我的主要目标是使用JSON数组填充自定义列表视图，但我没有任何线索如何做到这一点，并且之前没有问过我帮助过。 有人可以帮我吗？ 在这里所有的信息，程序停止在JSon捕获异常并给我toastBox：无法连接到互联网。有什么建议吗？ ：）
答案 0 :(得分：1)
Fragment1.java
import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONObject;
import android.app.ActionBar;
import android.os.Bundle;
import android.os.StrictMode;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import android.widget.SpinnerAdapter;
import android.widget.TextView;
import android.widget.Toast;
public class Fragment1 extends SherlockFragment {
ArrayList<String> items = new ArrayList<String>();
ArrayList<BeanClass> beanClass=new ArrayList<BeanClass>();
View rootView;
ListView list;
TextView title, price;
MyListAdapter adapter;
@Override
public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) {
// TODO Auto-generated method stub
super.onCreateOptionsMenu(menu, inflater);
MenuInflater blowup = this.getSherlockActivity()
.getSupportMenuInflater();
blowup.inflate(R.menu.menuxml, menu);
return;
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
rootView = inflater.inflate(R.layout.main, container, false);
ActionBar ab = this.getSherlockActivity().getSupportActionBar();
ab.setTitle("");
title = (TextView) rootView.findViewById(R.id.title);
price = (TextView) rootView.findViewById(R.id.details);
list = (ListView) rootView.findViewById(R.id.list);
SpinnerAdapter mSpinnerAdapter = ArrayAdapter.createFromResource(
this.getSherlockActivity(), R.array.phones_array,
android.R.layout.simple_spinner_dropdown_item);
ab.setNavigationMode(ActionBar.NAVIGATION_MODE_LIST);
ab.setListNavigationCallbacks(mSpinnerAdapter, null);
StrictMode.enableDefaults();
getData();
return rootView;
}
public void getData() {
String result = "";
InputStream isr = null;
try {
HttpClient httpclient = new DefaultHttpClient();
HttpPost httpost = new HttpPost(
"http://10.0.2.2/AndroidArabia/android3arabiya.php");
HttpResponse resposne = httpclient.execute(httpost);
HttpEntity entity = resposne.getEntity();
isr = entity.getContent();
} catch (Exception e) {
/* Log.e("log_tag", "error in http connection" + e.toString());
Toast.makeText(getSherlockActivity(),
"Couldn't Connect To The Internet", Toast.LENGTH_LONG)
.show();*/
}
try {
BufferedReader reader = new BufferedReader(new InputStreamReader(
isr, "UTF-8"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
isr.close();
result = sb.toString();
} catch (Exception e) {
Log.e("log_tag", "Error converting Result " + e.toString());
}
try {
JSONArray jArray = new JSONArray(result);
for (int i = 0; i < jArray.length(); i++) {
JSONObject json = jArray.getJSONObject(i);
/* thelista.add(new MyListAdapter(json.getString("PhoneName"),
json.getString("PhonePrice")));*/
beanClass.add(new BeanClass(json.getString("PhoneName"),
json.getString("PhonePrice"));
}
list.setAdapter(new MyListAdapter(Fragment1.this, beanClass));
} catch (Exception e) {
Log.e("lag_tag", "ERROR PARSING DATA" + e.toString());
Toast.makeText(getSherlockActivity(),
"Couldn't Connect To The Internet", Toast.LENGTH_LONG)
.show();
}
Your Adapter
import java.util.ArrayList;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
public class MyListAdapter extends BaseAdapter {
private Context context;
private ArrayList<BeanClass> beanClass=new ArrayList<BeanClass>();
public MyListAdapter(Context context,ArrayList<BeanClass> beanClass) {
// TODO Auto-generated constructor stub
this.context=context;
this.beanClass=beanClass;
}
@Override
public int getCount() {
return beanClass.size();
}
@Override
public Object getItem(int position) {
return beanClass.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
View rowView = LayoutInflater.from(context).inflate(R.layout.pricelist,
parent, false);
TextView text1 = (TextView) rowView.findViewById(R.id.title);
TextView text2 = (TextView) rowView.findViewById(R.id.details);
text1.setText(beanClass.get(position).phoneName);
text2.setText(beanClass.get(position).phonePrice);
return rowView;
}
}
}
BeanClasss
public class BeanClass {
String phoneName;
String phonePrice;
public String getPhoneName() {
return phoneName;
}
public String getPhonePrice() {
return phonePrice;
}
public void setPhoneName(String phoneName) {
this.phoneName = phoneName;
}
public void setPhonePrice(String phonePrice) {
this.phonePrice = phonePrice;
}
public BeanClass(String phoneName, String phonePrice) {
super();
this.phoneName = phoneName;
this.phonePrice = phonePrice;
}
}