Android 갤러리 자동로드

누군가이 코드를 변경하여 검색 버튼을 누르지 않고 자동로드되도록 도와 주면 궁금하십니까? 그냥 액티비티를 호출하고 Flickr 사진을로드해야합니다 ... 바로 지금로드 버튼을 눌러야합니다 ... 정말 고마워요!Android 갤러리 자동로드

package com.windmillagency; 

import java.io.BufferedReader; 
import java.io.IOException; 
import java.io.InputStream; 
import java.io.InputStreamReader; 
import java.io.Reader; 
import java.net.HttpURLConnection; 
import java.net.MalformedURLException; 
import java.net.URL; 

import org.apache.http.HttpEntity; 
import org.apache.http.client.ClientProtocolException; 
import org.apache.http.client.HttpClient; 
import org.apache.http.client.methods.HttpGet; 
import org.apache.http.impl.client.DefaultHttpClient; 
import org.json.JSONArray; 
import org.json.JSONException; 
import org.json.JSONObject; 



import android.app.Activity; 
import android.app.ProgressDialog; 
import android.content.Context; 
import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.os.Bundle; 
import android.os.Handler; 
import android.os.Message; 
import android.view.View; 
import android.view.ViewGroup; 
import android.view.ViewGroup.LayoutParams; 
import android.widget.BaseAdapter; 
import android.widget.Button; 
import android.widget.EditText; 
import android.widget.Gallery; 
import android.widget.ImageView; 
import android.widget.Toast; 

public class AndroidFlickrActivity extends Activity { 

    public String thisActivityName = "Flickr"; 

    ProgressDialog progressDialog; 
    BackgroundThread backgroundThread; 

    public class FlickrImage { 
     String Id; 
     String Owner; 
     String Secret; 
     String Server; 
     String Farm; 
     String Title; 

     Bitmap FlickrBitmap; 

     FlickrImage(String _Id, String _Owner, String _Secret, 
       String _Server, String _Farm, String _Title){ 
      Id = _Id; 
      Owner = _Owner; 
      Secret = _Secret; 
      Server = _Server; 
      Farm = _Farm; 
      Title = _Title; 

      FlickrBitmap = preloadBitmap(); 
     } 

     private Bitmap preloadBitmap(){ 
      Bitmap bm= null; 

      String FlickrPhotoPath = 
        "http://farm" + Farm + ".static.flickr.com/" 
        + Server + "/" + Id + "_" + Secret + "_m.jpg"; 

      URL FlickrPhotoUrl = null; 

      try { 
       FlickrPhotoUrl = new URL(FlickrPhotoPath); 

       HttpURLConnection httpConnection 
        = (HttpURLConnection) FlickrPhotoUrl.openConnection(); 
       httpConnection.setDoInput(true); 
       httpConnection.connect(); 
       InputStream inputStream = httpConnection.getInputStream(); 
       bm = BitmapFactory.decodeStream(inputStream); 

      } catch (MalformedURLException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } catch (IOException e) { 
       // TODO Auto-generated catch block 
       e.printStackTrace(); 
      } 

      return bm; 
     } 

     public Bitmap getBitmap(){ 
      return FlickrBitmap; 
     } 

    } 

    class FlickrAdapter extends BaseAdapter{ 
     private Context context; 
     private FlickrImage[] FlickrAdapterImage;; 

     FlickrAdapter(Context c, FlickrImage[] fImage){ 
      context = c; 
      FlickrAdapterImage = fImage; 
     } 

     public int getCount() { 
      // TODO Auto-generated method stub 
      return FlickrAdapterImage.length; 
     } 

     public Object getItem(int position) { 
      // TODO Auto-generated method stub 
      return FlickrAdapterImage[position]; 
     } 

     public long getItemId(int position) { 
      // TODO Auto-generated method stub 
      return position; 
     } 

     public View getView(int position, View convertView, ViewGroup parent) { 
      // TODO Auto-generated method stub 
      ImageView image; 
      if (convertView == null) { 
       image = new ImageView(context); 
       image.setLayoutParams(new Gallery.LayoutParams(LayoutParams.MATCH_PARENT, LayoutParams.MATCH_PARENT)); 
       image.setScaleType(ImageView.ScaleType.FIT_CENTER); 
       image.setPadding(8, 8, 8, 8); 
      } else { 
       image = (ImageView) convertView;  
      } 

      image.setImageBitmap(FlickrAdapterImage[position].getBitmap()); 

      return image; 
     } 

    } 

    FlickrImage[] myFlickrImage; 

    /* 
    * FlickrQuery = FlickrQuery_url 
    * + FlickrQuery_per_page 
    * + FlickrQuery_nojsoncallback 
    * + FlickrQuery_format 
    * + FlickrQuery_tag + q 
    * + FlickrQuery_key + FlickrApiKey 
    */ 

    String FlickrQuery_url = "http://api.flickr.com/services/rest/?method=flickr.people.getPublicPhotos&api_key=fdd73dc07613841fbe325b5103d673b7&[email protected]&per_page=25&format=json"; 
    String FlickrQuery_per_page = "&per_page=10"; 
    String FlickrQuery_nojsoncallback = "&nojsoncallback=1"; 
    String FlickrQuery_format = "&format=json"; 
    String FlickrQuery_tag = "&tags="; 
    String FlickrQuery_key = "&api_key="; 

    // Apply your Flickr API: 
    // www.flickr.com/services/apps/create/apply/? 
    String FlickrApiKey = "fdd73dc07613841fbe325b5103d673b7"; 

    //final String DEFAULT_SEARCH = "Bill_Gate"; 
    final String DEFAULT_SEARCH = "new_york"; 

    EditText searchText; 
    Button searchButton; 

    Gallery photoBar; 

    Bitmap bmFlickr; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     searchText = (EditText)findViewById(R.id.searchtext); 
     searchText.setText(DEFAULT_SEARCH); 
     searchButton = (Button)findViewById(R.id.searchbutton); 

     photoBar = (Gallery)findViewById(R.id.photobar); 

     searchButton.setOnClickListener(searchButtonOnClickListener); 
    } 

    private Button.OnClickListener searchButtonOnClickListener 
    = new Button.OnClickListener(){ 

     public void onClick(View arg0) { 
      // TODO Auto-generated method stub 
      progressDialog = ProgressDialog.show(AndroidFlickrActivity.this, 
        "ProgressDialog", "Wait!"); 

      backgroundThread = new BackgroundThread(); 
      backgroundThread.setRunning(true); 
      backgroundThread.start(); 




     }}; 


    private String QueryFlickr(String q){ 

     String qResult = null; 

     String qString = 
       FlickrQuery_url 
       + FlickrQuery_per_page 
       + FlickrQuery_nojsoncallback 
       + FlickrQuery_format 
       + FlickrQuery_tag + q 
       + FlickrQuery_key + FlickrApiKey; 

     HttpClient httpClient = new DefaultHttpClient(); 
     HttpGet httpGet = new HttpGet(qString); 

     try { 
      HttpEntity httpEntity = httpClient.execute(httpGet).getEntity(); 

      if (httpEntity != null){ 
       InputStream inputStream = httpEntity.getContent(); 
       Reader in = new InputStreamReader(inputStream); 
       BufferedReader bufferedreader = new BufferedReader(in); 
       StringBuilder stringBuilder = new StringBuilder(); 

       String stringReadLine = null; 

       while ((stringReadLine = bufferedreader.readLine()) != null) { 
        stringBuilder.append(stringReadLine + "\n"); 
        } 

       qResult = stringBuilder.toString(); 
       inputStream.close(); 
      } 

     } catch (ClientProtocolException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } catch (IOException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 

     return qResult; 
    } 

    private FlickrImage[] ParseJSON(String json){ 

     FlickrImage[] flickrImage = null; 

     bmFlickr = null; 
     String flickrId; 
     String flickrOwner; 
     String flickrSecret; 
     String flickrServer; 
     String flickrFarm; 
     String flickrTitle; 

     try { 
      JSONObject JsonObject = new JSONObject(json); 
      JSONObject Json_photos = JsonObject.getJSONObject("photos"); 
      JSONArray JsonArray_photo = Json_photos.getJSONArray("photo"); 

      flickrImage = new FlickrImage[JsonArray_photo.length()]; 
      for (int i = 0; i < JsonArray_photo.length(); i++){ 
       JSONObject FlickrPhoto = JsonArray_photo.getJSONObject(i); 
       flickrId = FlickrPhoto.getString("id"); 
       flickrOwner = FlickrPhoto.getString("owner"); 
       flickrSecret = FlickrPhoto.getString("secret"); 
       flickrServer = FlickrPhoto.getString("server"); 
       flickrFarm = FlickrPhoto.getString("farm"); 
       flickrTitle = FlickrPhoto.getString("title"); 
       flickrImage[i] = new FlickrImage(flickrId, flickrOwner, flickrSecret, 
         flickrServer, flickrFarm, flickrTitle); 
      } 

     } catch (JSONException e) { 
      // TODO Auto-generated catch block 
      e.printStackTrace(); 
     } 

     return flickrImage; 
    } 

    public class BackgroundThread extends Thread{ 
     volatile boolean running = false; 
     int cnt; 

     void setRunning(boolean b){ 
      running = b;  
      cnt = 10; 
     } 

     @Override 
     public void run() { 
      // TODO Auto-generated method stub 
      String searchQ = searchText.getText().toString(); 
      String searchResult = QueryFlickr(searchQ); 

      myFlickrImage = ParseJSON(searchResult); 


      handler.sendMessage(handler.obtainMessage()); 
     } 
    } 

    Handler handler = new Handler(){ 

     @Override 
     public void handleMessage(Message msg) { 
      // TODO Auto-generated method stub 

      progressDialog.dismiss(); 
      photoBar.setAdapter(new FlickrAdapter(AndroidFlickrActivity.this, myFlickrImage)); 
      Toast.makeText(AndroidFlickrActivity.this, 
        "Flickr images loaded", Toast.LENGTH_LONG).show(); 
     } 

    }; 

} 







XML File 

<?xml version="1.0" encoding="utf-8"?> 
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
    android:orientation="vertical" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    > 
<TextView 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="@string/hello" 
    /> 
<EditText 
    android:id="@+id/searchtext" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    /> 
<Button 
    android:id="@+id/searchbutton" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    android:text="Search" 
    /> 
<TextView 
    android:id="@+id/queryresult" 
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    /> 
<Gallery 
    android:id="@+id/photobar" 
    android:layout_width="fill_parent" 
    android:layout_height="fill_parent" 
    android:spacing="10dp" 
    /> 
</LinearLayout>

출처

2012-04-25 user1120680

주 스레드에서 Adapter.notifyDataSetChanged()를 호출해야합니다. 핸들러를 사용하여 주 스레드에 게시하십시오.

BaseAdapter mBaseAdapter; 

// ... some init stuff 

mHandler = new Handler(Looper.getMainLooper()) { 
    @Override public void handleMessage(Message msg) { 
     mBaseAdapter.notifyDataSetChanged(); 

     mHandler.sendEmptyDelayedMessage(-1, 100); 
    } 
};

출처

2012-04-25 21:19:11 AedonEtLIRA

응답 해 주셔서 감사합니다. 궁금해하는 경우 코드에 나를 구현할 수있는 방법을 보여줄 수 있습니다 ... 아주 새로운하지만 지금은 에뮬레이터에서 일하고 있어요 :) 당신이 내게 정확히 어떤 일을 바꿀 수있는 곳을 보여줄 수 있다면 .. soo. 거기에 단추를 넣고 싶지는 않아요. – user1120680

생성자 (클래스 스코프 포함)에서 핸들러를 인스턴스화 한 다음 자동 업데이트 프로그램을 시작하려면'mHandler.sendEmptyMessage (-1);을 호출하십시오. – AedonEtLIRA

감사합니다. 프로그래밍 및 코드 수정을 시도하는 중 ... 내 코드를 보여줄 시간이 있다면 좋을 것입니다! 배워야 할 것이 많으므로, 다시 한번 감사드립니다! – user1120680

Android 갤러리 자동로드

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