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私はGoogleスプレッドシートからJSONデータを取得しようとしていますが、表示されません。理由はわかりません。My JSONレスポンスがマッチクラスと一致しないと思います。私を助けJsonがURLデータを表示しない
これはこれは私がURLデータ
をフェッチするために使用されるクラスである私のAsyncResultインターフェイスpackage com.textview.android.jsonsuccessful; import org.json.JSONObject; interface AsyncResult { void onResult(JSONObject object); }
です
package com.textview.android.jsonsuccessful;
import android.os.AsyncTask;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
public class DownloadWebpageTask extends AsyncTask<String, Void, String> {
AsyncResult callback;
public DownloadWebpageTask(AsyncResult callback) {
this.callback = callback;
}
@Override
protected String doInBackground(String... urls) {
// params comes from the execute() call: params[0] is the url.
try {
return downloadUrl(urls[0]);
} catch (IOException e) {
return "Unable to download the requested page.";
}
}
// onPostExecute displays the results of the AsyncTask.
@Override
protected void onPostExecute(String result) {
// remove the unnecessary parts from the response and construct a JSON
int start = result.indexOf("{", result.indexOf("{") + 1);
int end = result.lastIndexOf("}");
String jsonResponse = result.substring(start, end);
try {
JSONObject team = new JSONObject(jsonResponse);
callback.onResult(team);
} catch (JSONException e) {
e.printStackTrace();
}
}
private String downloadUrl(String urlString) throws IOException {
InputStream is = null;
try {
URL url = new URL(urlString);
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setReadTimeout(10000 /* milliseconds */);
conn.setConnectTimeout(15000 /* milliseconds */);
conn.setRequestMethod("GET");
conn.setDoInput(true);
// Starts the query
conn.connect();
int responseCode = conn.getResponseCode();
is = conn.getInputStream();
String contentAsString = convertStreamToString(is);
return contentAsString;
} finally {
if (is != null) {
is.close();
}
}
}
private String convertStreamToString(InputStream is) {
BufferedReader reader = new BufferedReader(new
InputStreamReader(is));
StringBuilder sb = new StringBuilder();
String line = null;
try {
while ((line = reader.readLine()) != null) {
sb.append(line + "\n");
}
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
is.close();
} catch (IOException e) {
e.printStackTrace();
}
}
return sb.toString();
}
}
これは
package com.textview.android.jsonsuccessful;
import android.content.Context;
import android.net.ConnectivityManager;
import android.net.NetworkInfo;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.ListView;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.util.ArrayList;
public class MainActivity extends AppCompatActivity {
private static final String DEBUG_TAG = "HttpExample";
ArrayList<Team> teams = new ArrayList<Team>();
ListView listview;
Button btnDownload;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listview = (ListView) findViewById(R.id.listview);
btnDownload = (Button) findViewById(R.id.btnDownload);
ConnectivityManager connMgr = (ConnectivityManager)
getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo networkInfo = connMgr.getActiveNetworkInfo();
if (networkInfo != null && networkInfo.isConnected()) {
btnDownload.setEnabled(true);
} else {
btnDownload.setEnabled(false);
}
}
public void buttonClickHandler(View view) {
new DownloadWebpageTask(new AsyncResult() {
@Override
public void onResult(JSONObject object) {
processJson(object);
}
}).execute([google]"https://spreadsheets.google.com/tq?
key=1424bS7kU8nJbHdu4QdoAFdIdWDSnmEnj2NqfMb6rPTU");
}
private void processJson(JSONObject object) {
try {
JSONArray rows = object.getJSONArray("rows");
for (int r = 0; r < rows.length(); ++r) {
JSONObject row = rows.getJSONObject(r);
JSONArray columns = row.getJSONArray("c");
int Code = columns.getJSONObject(0).getInt("v");
String Name = columns.getJSONObject(1).getString("v");
String Father = columns.getJSONObject(3).getString("v");
String Sessional = columns.getJSONObject(4).getString("v");
String Comments = columns.getJSONObject(5).getString("v");
Team team = new Team(Code, Name, Father, Sessional,Comments);
teams.add(team);
}
final TeamsAdapter adapter = new TeamsAdapter(this, R.layout.team, teams);
listview.setAdapter(adapter);
} catch (JSONException e) {
e.printStackTrace();
}
}
}
これは、これは私のアダプター
package com.textview.android.jsonsuccessful;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ArrayAdapter;
import android.widget.TextView;
import java.util.ArrayList;
public class TeamsAdapter extends ArrayAdapter<Team> {
Context context;
private ArrayList<Team> teams;
public TeamsAdapter(Context context, int textViewResourceId, ArrayList<Team> items) {
super(context, textViewResourceId, items);
this.context = context;
this.teams = items;
}
@Override
public View getView(int Code, View convertView, ViewGroup parent) {
View v = convertView;
if (v == null) {
LayoutInflater vi = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
v = vi.inflate(R.layout.team, null);
}
Team o = teams.get(Code);
if (o != null) {
TextView Cod = (TextView) v.findViewById(R.id.Code);
TextView Name = (TextView) v.findViewById(R.id.Name);
TextView Father = (TextView) v.findViewById(R.id.Father);
TextView Comments = (TextView) v.findViewById(R.id.Comments);
TextView Sessional = (TextView) v.findViewById(R.id.Sessional);
Cod.setText(String.valueOf(o.getCode()));
Name.setText(String.valueOf(o.getName()));
Father.setText(String.valueOf(o.getFatherName()));
Sessional.setText(String.valueOf(o.getSessionalMarks()));
Comments.setText(String.valueOf(o.getComments()));
}
return v;
}
}である
package com.textview.android.jsonsuccessful;
public class Team {
private int Code;
private String Name;
private String Father;
private String Sessional;
private String Comments;
public Team(int Code, String Name, String Father, String Sessional, String Comments) {
this.setCode(Code);
this.setName(Name);
this.setFatherName(Father);
this.setSessionalMarks(Sessional);
this.setComments(Comments);
}
public int getCode() {
return Code;
}
public void setCode(int Code) {
this.Code = Code;
}
public String getName() {
return Name;
}
public void setName(String Name) {
this.Name = Name;
}
public String getFatherName() {
return Father;
}
public void setFatherName(String FatherName) {
this.Father = FatherName;
}
public String getSessionalMarks() {
return Sessional;
}
public void setSessionalMarks(String SessionalMarks) {
this.Sessional = SessionalMarks;
}
public String getComments() {
return Comments;
}
public void setComments(String Comments) {
this.Comments = Comments;
}
}
私のマッチングクラスで私のmainactivityです
これはJSONデータを解析しながらこれはあなたの内に存在しない1つの余分オブジェクト「」コメント「」解析している
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="horizontal"
android:layout_width="match_parent"
android:layout_height="match_parent">
<TextView
android:id="@+id/Code"
android:text="201"
android:layout_width="0dp"
android:layout_weight=".35"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/Name"
android:text="ankit"
android:layout_width="0dp"
android:layout_weight=".50"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/Father"
android:text="Ramesh"
android:layout_width="0dp"
android:layout_weight=".70"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/Sessional"
android:text="maths 15 ,english 20, physics 30,computer 7,Gk 12"
android:layout_width="0dp"
android:layout_weight="1.5"
android:layout_height="wrap_content" />
<TextView
android:id="@+id/Comments"
android:text="should put more efforts"
android:layout_width="0dp"
android:layout_weight="1"
android:layout_height="wrap_content" />
</LinearLayout>