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主类 使用排球库从URL中获取JSON数据。如何在listview中显示JSON对象？
public class MyActivity extends Activity {
ListView listView;
List<Details> rowItems;
RequestQueue requestQueue;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.details2);
url = getIntent().getStringExtra("key");
if(savedInstanceState!=null){
Log.d("STATE",savedInstanceState.toString());
}
requestQueue = Volley.newRequestQueue(this);
JsonObjectRequest jor = new JsonObjectRequest(url, null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
JSONArray ja = response.getJSONArray("results");
ArrayList<Details> myModelList = new ArrayList<Details>();
Details mymodel = null;
for (int i = 0; i < ja.length(); i++) {
JSONObject jsonObject = ja.getJSONObject(i);
mymodel = new Details();
mymodel.id = Integer.parseInt(jsonObject.optString("id").toString());
mymodel.url = jsonObject.getString("resLink");
mymodel.resType = jsonObject.getString("resType");
mymodel.name = jsonObject.getString("resName");
myModelList.add(mymodel);
setData();
}
}catch(JSONException e){e.printStackTrace();}
}
},
new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.e("Volley","Error");
}
}
);
requestQueue.add(jor);
}
private void setData() {
listView = (ListView) findViewById(R.id.list);
CustomListViewAdapter adapter = new CustomListViewAdapter(this,
R.layout.list_item, rowItems);
listView.setAdapter(adapter);
//listView.setOnItemClickListener(this);
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.menu_main, menu);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
//noinspection SimplifiableIfStatement
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
我CustomListViewAdapter克拉斯低于
public class CustomListViewAdapter extends ArrayAdapter<Details> {
Context context;
public CustomListViewAdapter(Context context, int resourceId,
List<Details> items) {
super(context, resourceId, items);
this.context = context;
}
/*private view holder class*/
private class ViewHolder {
TextView txtTitle;
TextView txtDesc;
}
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder holder = null;
Details rowItem = getItem(position);
LayoutInflater mInflater = (LayoutInflater) context
.getSystemService(Activity.LAYOUT_INFLATER_SERVICE);
if (convertView == null) {
convertView = mInflater.inflate(R.layout.list_item, null);
holder = new ViewHolder();
holder.txtDesc = (TextView) convertView.findViewById(R.id.desc);
holder.txtTitle = (TextView) convertView.findViewById(R.id.title);
convertView.setTag(holder);
} else
holder = (ViewHolder) convertView.getTag();
holder.txtDesc.setText(rowItem.getResType());
holder.txtTitle.setText(rowItem.getName());
return convertView;
}
我的详细信息类 公共类详细扩展结果{
String name;
String resType;
String url;
int id;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getResType() {
return resType;
}
public void setResType(String resType) {
this.resType = resType;
}
public String getUrl() {
return url;
}
public void setUrl(String url) {
this.url = url;
}
*希望综艺节目我在列表视图中接收到的数据*
我的XML<ListView
android:id="@+id/list"
android:layout_width="match_parent"
android:layout_height="wrap_content"
/>
list_item.xml
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical" android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@+id/icon"
android:paddingBottom="10dp"
android:textColor="#CC0033"
android:textSize="16dp" />
<TextView
android:id="@+id/desc"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/title"
android:layout_toRightOf="@+id/icon"
android:paddingLeft="10dp"
android:textColor="#3399FF"
android:textSize="14dp" />
随时！乐意效劳。 –