我试图在片段中制作列表视图，但我得到了这个。我在评论中加入了错误注释。我不知道为什么因为我是android的新手，所以有人请帮帮我
此行有多个标记
FragmentaReviews.java
public class FragmentaReviews extends SherlockFragment {
private JSONReview json;
ListView list;
TextView title;
ArrayList<HashMap<String, String>> ListReview = new ArrayList<HashMap<String, String>>();
//URL to get JSON Array
private static String url = "http:/10.0.3.2/1aaa/listreview.php";
//JSON Node Names
private static final String TAG_Review = "ListReview";
private static final String TAG_title = "title";
JSONArray reviews = null;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
// Inflate the layout for this fragment
return inflater.inflate(R.layout.row_main, container, false);
}
@Override
public void onActivityCreated(Bundle savedInstanceState) {
// TODO Auto-generated method stub
super.onActivityCreated(savedInstanceState);
ListReview = new ArrayList<HashMap<String, String>>();
new JSONParse().execute();
}
private class JSONParse extends AsyncTask<String, String, JSONObject> {
private ProgressDialog pDialog;
JSONReview jParser = new JSONReview();
// json = new JSONReview();
private JSONObject json;
@Override
protected void onPreExecute() {
super.onPreExecute();
title = (TextView)getView().findViewById(R.id.title);
pDialog = new ProgressDialog(getActivity());
pDialog.setMessage("Getting Data ...");
pDialog.setIndeterminate(false);
pDialog.setCancelable(true);
pDialog.show();
}
@Override
protected JSONObject doInBackground(String... args) {
// Getting JSON from URL
json = jParser.getJSONFromURL(url);
return json;
}
@Override
protected void onPostExecute(JSONObject json) {
pDialog.dismiss();
try {
//Change here
// Getting JSON Array from URL
JSONArray jsonArray = json.getJSONArray(TAG_Review);
for(int i = 0; i < jsonArray.length(); i++){
JSONObject c = jsonArray.getJSONObject(i);
//Stop here
// Storing JSON item in a Variable
String title = c.getString(TAG_title);
// Adding value HashMap key => value
HashMap<String, String> map = new HashMap<String, String>();
map.put(TAG_title, title);
ListReview.add(map);
list = (ListView)getView().findViewById(R.id.list);
ListAdapter adapter = new SimpleAdapter(getActivity(), ListReview,
R.layout.fragmenta_review,
new String[] { TAG_title, TAG_tujuanwisata}, new int[] {
R.id.title);
list.setAdapter(adapter);
list.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
}
});
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}
}
JSONReview.java
public class JSONReview
{
private InputStream is = null;
private JSONObject jsonObject = null;
private String json = "";
private final String TAG_Review = "ListReview";
private final String TAG_IDR ="id";
private final String TAG_title = "title";
public JSONObject getJSONFromURL(String url)
{
try
{
DefaultHttpClient httpClient = new DefaultHttpClient();
HttpGet httpGet = new HttpGet(url);
HttpResponse httpResponse = httpClient.execute(httpGet);
HttpEntity httpEntity = httpResponse.getEntity();
is = httpEntity.getContent();
} catch (UnsupportedEncodingException e)
{
e.printStackTrace();
} catch (ClientProtocolException e)
{
e.printStackTrace();
} catch (IOException e)
{
e.printStackTrace();
}
try
{
BufferedReader reader = new BufferedReader(new InputStreamReader(
is, "iso-8859-1"), 8);
StringBuilder sb = new StringBuilder();
String line = null;
while ((line = reader.readLine()) != null)
{
sb.append(line + "\n");
}
is.close();
json = sb.toString();
} catch (Exception e)
{
// TODO: handle exception
}
try
{
jsonObject = new JSONObject(json);
} catch (JSONException e)
{
// TODO: handle exception
}
return jsonObject;
}
//--------------------- review
public ArrayList<Review> getJSONArray(JSONObject jobj)
{
ArrayList<Review> ListReview = new ArrayList<Review>();
try
{
JSONArray arrayListReview = jobj.getJSONArray(TAG_Review);
for (int i = 0; i < arrayListReview.length(); i++)
{
JSONObject jobject = arrayListReview.getJSONObject(i);
ListReview.add(new Review(jobject.getInt(TAG_IDR), jobject.getString(TAG_title)));
}
} catch (JSONException e)
{
e.printStackTrace();
}
return ListReview;
}
}
review.java
public class Review {
private int id;
private String tujuanwisata;
private String judul;
private String isi;
public Review()
{
// do nothing
}
public Review (int id, String tujuanwisata, String judul, String isi) {
super();
this.id =id;
this.tujuanwisata = tujuanwisata;
this.judul = judul;
this.isi = isi;
}
public int getid() {
return id;
}
public void setid(int id) {
this.id = id;
}
public String gettujuanwisata() {
return tujuanwisata;
}
public void settujuanwisata(String tujuanwisata) {
this.tujuanwisata = tujuanwisata;
}
public String getjudul() {
return judul;
}
public void setjudul(String judul) {
this.judul = judul;
}
public String getisi() {
return isi;
}
public void setisi(String isi) {
this.isi = isi;
}
}
logcat的
01-08 17:47:32.555: E/WindowManager(2186): Activity com.android.GoTrip.MainActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{527c304c V.E..... R......D 0,0-684,192} that was originally added here
01-08 17:47:32.555: E/WindowManager(2186): android.view.WindowLeaked: Activity com.android.GoTrip.MainActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{527c304c V.E..... R......D 0,0-684,192} that was originally added here
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewRootImpl.<init>(ViewRootImpl.java:345)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:239)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:69)
01-08 17:47:32.555: E/WindowManager(2186): at android.app.Dialog.show(Dialog.java:281)
01-08 17:47:32.555: E/WindowManager(2186): at com.android.GoTrip.FragmentaReviews$JSONParse.onPreExecute(FragmentaReviews.java:92)
01-08 17:47:32.555: E/WindowManager(2186): at android.os.AsyncTask.executeOnExecutor(AsyncTask.java:586)
01-08 17:47:32.555: E/WindowManager(2186): at android.os.AsyncTask.execute(AsyncTask.java:534)
01-08 17:47:32.555: E/WindowManager(2186): at com.android.GoTrip.FragmentaReviews.onActivityCreated(FragmentaReviews.java:70)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.app.Fragment.performActivityCreated(Fragment.java:1794)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:967)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.app.FragmentManagerImpl.moveToState(FragmentManager.java:1126)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.app.BackStackRecord.run(BackStackRecord.java:739)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.app.FragmentManagerImpl.execPendingActions(FragmentManager.java:1489)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.app.FragmentManagerImpl.executePendingTransactions(FragmentManager.java:486)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.app.FragmentPagerAdapter.finishUpdate(FragmentPagerAdapter.java:141)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.view.ViewPager.populate(ViewPager.java:1073)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.view.ViewPager.populate(ViewPager.java:919)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1441)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.View.measure(View.java:15848)
01-08 17:47:32.555: E/WindowManager(2186): at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:728)
01-08 17:47:32.555: E/WindowManager(2186): at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:477)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.View.measure(View.java:15848)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
01-08 17:47:32.555: E/WindowManager(2186): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.View.measure(View.java:15848)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
01-08 17:47:32.555: E/WindowManager(2186): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.View.measure(View.java:15848)
01-08 17:47:32.555: E/WindowManager(2186): at android.support.v4.widget.DrawerLayout.onMeasure(DrawerLayout.java:851)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.View.measure(View.java:15848)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
01-08 17:47:32.555: E/WindowManager(2186): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.View.measure(View.java:15848)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
01-08 17:47:32.555: E/WindowManager(2186): at com.android.internal.widget.ActionBarOverlayLayout.onMeasure(ActionBarOverlayLayout.java:302)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.View.measure(View.java:15848)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5012)
01-08 17:47:32.555: E/WindowManager(2186): at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
01-08 17:47:32.555: E/WindowManager(2186): at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2189)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.View.measure(View.java:15848)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1905)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1104)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1284)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1004)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5481)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:749)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.Choreographer.doCallbacks(Choreographer.java:562)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.Choreographer.doFrame(Choreographer.java:532)
01-08 17:47:32.555: E/WindowManager(2186): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:735)
01-08 17:47:32.555: E/WindowManager(2186): at android.os.Handler.handleCallback(Handler.java:730)
01-08 17:47:32.555: E/WindowManager(2186): at android.os.Handler.dispatchMessage(Handler.java:92)
01-08 17:47:32.555: E/WindowManager(2186): at android.os.Looper.loop(Looper.java:137)
01-08 17:47:32.555: E/WindowManager(2186): at android.app.ActivityThread.main(ActivityThread.java:5103)
01-08 17:47:32.555: E/WindowManager(2186): at java.lang.reflect.Method.invokeNative(Nati
答案 0 :(得分：0)
这里：
ListReview = json.getJSONArray（TAG_Review）;
您正尝试将从JSONArray返回的json.getJSONArray(TAG_Review)分配给ListReview List对象。从JSONObject获取JSONArray：
JSONArray jsonArray = json.getJSONArray(TAG_Review);
并使用jsonArray代替ListReview来获取JSONArray的长度和值。
答案 1 :(得分：0)
你宣布了一个成员变量
ArrayList<HashMap<String, String>> ListReview = new ArrayList<HashMap<String, String>>();
是HashMap的ArrayList，在你的AsyncTask中，你试图为这个对象分配getJSONArray的返回值，这又是JSONArray，导致编译时错误< / p>
更改
ListReview = json.getJSONArray(TAG_Review);
到
JSONArrary array = json.getJSONArray(TAG_Review);
并使用array进行解析