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從onPostExecute顯示到另一個活動json數組結果

2017-08-27 36 views
1

如何從onPostExecute獲取json結果到另一個活動？我能夠根據登錄的用戶名從數據庫獲取用戶詳細信息。因此，在HomePageActivity中有一個按鈕可用於配置文件，當我單擊btnprofile時，它會顯示當前活動中的文本視圖的用戶詳細信息（HomePageActivity）但我想要做的是獲取用戶詳細信息，然後將其顯示到配置文件活動中的新活動。我嘗試使用意圖，但當我去配置文件活動它什麼也沒有顯示。你能幫我麼？ :(從onPostExecute顯示到另一個活動json數組結果

這裏是我的HomePageActivity：

package com.example.androidmp; 

import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 
import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.io.UnsupportedEncodingException; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.StringTokenizer; 
import android.content.*; 
import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.NameValuePair; 
import org.apache.http.client.ClientProtocolException; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.entity.UrlEncodedFormEntity; 
import org.apache.http.client.methods.HttpPost; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.apache.http.message.BasicNameValuePair; 
import org.apache.http.util.EntityUtils; 
import org.json.JSONArray; 
import org.json.JSONObject; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.app.Activity; 
import android.graphics.Bitmap; 
import android.graphics.drawable.BitmapDrawable; 
import android.graphics.drawable.Drawable; 
import android.view.Menu; 
import android.view.View; 
import android.widget.*; 

import com.example.androidmp.User; 
import java.util.ArrayList; 
import java.util.List; 
import com.example.androidmp.User; 
import com.example.androidmp.Poem; 
import java.util.ArrayList; 
import java.util.HashMap; 
import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 
import android.app.Activity; 
import android.app.Dialog; 
import android.app.ProgressDialog; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.util.Log; 
import android.widget.ListView; 

public class HomePageActivity extends Activity { 


    Button btnfeed, btnprofile; 
    User u = new User(); 
    String Username,Password,Fullname,Email,Location,Bio,uname; 
    String getusername,getpw,getfn,getem,getloc,getb; 
    JSONObject jsonobject; 
    JSONArray jsonarray; 
    ListView listview; 
    ListViewAdapter adapter; 
    ProgressDialog mProgressDialog; 
    ArrayList<HashMap<String, String>> arraylist; 
    HashMap<String, String> hashMap = new HashMap<String, String>(); 
    Intent i; 
    Bundle bundle; 
    private static final String USERNAME = "Username"; 
    private static final String PASSWORD = "Password"; 
    private static final String FULLNAME = "Fullname"; 
    private static final String EMAIL = "Email"; 
    private static final String BIO = "Bio"; 
    private static final String LOCATION = "Location"; 
    String s=""; 
    TextView fn,em,loc,b; 
    private static final String TAG_PROFILE = "user"; 
    private static final String PROFILE_URL = "http://192.168.1.5/webservices/mycontroller/getUser.php"; 
    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.activity_homepage); 


     Intent intent = getIntent(); 
     u.SetUsername(intent.getStringExtra(u.username())); 
     fn = (TextView) findViewById(R.id.textView1); 
     em = (TextView) findViewById(R.id.textView2); 
     loc = (TextView) findViewById(R.id.textView3); 
     b = (TextView) findViewById(R.id.textView4); 
     TextView textView = (TextView) findViewById(R.id.getusername); 
     textView.setText(u.getUsername()); 
     uname = u.getUsername().toString(); 
     //uname = textView.toString(); 

     //u.SetUsername(uname.toString()); 

     btnprofile = (Button) findViewById(R.id.btnprofile); 
     btnfeed = (Button) findViewById(R.id.btnfeed); 

     //getem = em.getText().toString(); 
     //getloc = loc.getText().toString(); 
     //getb = b.getText().toString(); 

     btnprofile.setOnClickListener(new View.OnClickListener() { 
      public void onClick(View v) { 


       new ProfileAsync().execute(); 


       Intent i = new Intent(HomePageActivity.this,ProfileActivity.class); 

       i.putExtra("fullname",Fullname); 
       i.putExtra("email", Email); 
       i.putExtra("bio", Bio); 
       i.putExtra("location", Location); 
       startActivity(i); 
       finish(); 



      } 
     }); 

     btnfeed.setOnClickListener(new View.OnClickListener() { 
      public void onClick(View v) { 
       Intent a = new Intent(HomePageActivity.this,FeedActivity.class); 
       startActivity(a); 
      } 
     }); 
    } 


     class ProfileAsync extends AsyncTask<String, String, String>{ 

       private Dialog loadingDialog; 

       @Override 
       protected void onPreExecute() { 
        super.onPreExecute(); 
        loadingDialog = ProgressDialog.show(HomePageActivity.this, "Please wait", "Loading..."); 
       } 

       @Override 
       protected String doInBackground(String... params) { 
        String json=null; 
        byte[] data; 
        StringBuffer buffer = null; 
        InputStream is = null; 



        try{ 
         List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(); 
         nameValuePairs.add(new BasicNameValuePair("Username", uname)); 

         HttpClient httpClient = new DefaultHttpClient(); 
         HttpPost httpPost = new HttpPost(PROFILE_URL); 
         httpPost.setEntity(new UrlEncodedFormEntity(nameValuePairs)); 

         HttpResponse response = httpClient.execute(httpPost); 

         HttpEntity entity = response.getEntity(); 
         json = EntityUtils.toString(entity); 
         Log.e("Profile JSON: ", json.toString()); 





        } catch (ClientProtocolException e) { 
         e.printStackTrace(); 
        } catch (UnsupportedEncodingException e) { 
         e.printStackTrace(); 
        } catch (IOException e) { 
         e.printStackTrace(); 
        } 
        return json; 
       } 

       @Override 
       protected void onPostExecute(String json){ 
        super.onPostExecute(json); 

        loadingDialog.dismiss(); 

        try 
        { 
        jsonobject = new JSONObject(json); 
        jsonarray = jsonobject.getJSONArray("user"); 
        JSONObject jb= jsonarray.getJSONObject(0); 
        //Username = jb.getString("Username"); 
        //Password = jb.getString("Password"); 
        Fullname = jb.getString("Fullname"); 
        Email = jb.getString("Email"); 
        Bio = jb.getString("Bio"); 
        Location = jb.getString("Location"); 


        fn.setText(Fullname); 
        em.setText(Email); 
        loc.setText(Location); 
        b.setText(Bio); 



        }catch(Exception e) 
        { 
         e.printStackTrace(); 
        } 



       } 
      }//end of asynctask 






}

這裏是我的ProfileActivity：

package com.example.androidmp; 

import android.os.Bundle; 
import android.app.Activity; 
import android.view.Menu; 
import java.io.BufferedReader; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.util.ArrayList; 
import java.util.List; 
import java.util.StringTokenizer; 
import android.content.*; 
import com.example.androidmp.User; 
import org.apache.http.HttpEntity; 
import org.apache.http.HttpResponse; 
import org.apache.http.NameValuePair; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.entity.UrlEncodedFormEntity; 
import org.apache.http.client.methods.HttpPost; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.apache.http.message.BasicNameValuePair; 
import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 
import android.os.AsyncTask; 
import android.os.Bundle; 
import android.app.Activity; 
import android.graphics.Bitmap; 
import android.graphics.drawable.BitmapDrawable; 
import android.graphics.drawable.Drawable; 
import android.view.Menu; 
import android.view.View; 
import android.widget.*; 


public class ProfileActivity extends Activity { 


    Button btncreate; 
    private TextView _username,_password,_fullname,_Email,_bio,_location; 
    User u = new User(); 


    @Override 
    protected void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.profileview); 

     //_username = (TextView) findViewById(R.id._username); 
     //_password = (TextView) findViewById(R.id._password); 
     _fullname = (TextView) findViewById(R.id._fullname); 
     _Email = (TextView) findViewById(R.id._Email); 
     _bio = (TextView) findViewById(R.id._bio); 
     _location = (TextView) findViewById(R.id._location); 


     Intent i = getIntent(); 
     u.SetUsername(i.getStringExtra(u.username())); 
     _username.setText(u.getUsername()); 




     String displayfullname = i.getExtras().getString("fullname"); 
     String displayemail = i.getExtras().getString("email"); 
     String displaybio = i.getExtras().getString("bio"); 
     String displaylocation = i.getExtras().getString("location"); 


     _fullname.setText(displayfullname); 
     _Email.setText(displayemail); 
     _bio.setText(displaybio); 
     _location.setText(displaylocation); 



    } 




}

來源

2017-08-27 Aira Veronica Dizon

回答

1

這是因爲新的活動開始完成異步任務之前只需撥打功能開始在新的活動。 onPostExecute()函數

來源

2017-08-27 09:43:13

+0

謝謝先生，我的代碼現在正在工作！ :) –

+0

不客氣，你能把這個標記爲接受嗎？ :) –

0

獲取詳細信息後傳遞值settext是否正常工作？那麼您可以給出該範圍的意圖， e onPostexecute方法。在做這件事之前請看。 Look this

來源

2017-08-27 09:44:06 Manoranjan

+0

謝謝，先生！我將ontent放在onPostExecute方法中，它現在可以工作了！ –

+0

很高興你做到了:) – Manoranjan

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