listview apiに画像をロード

Question

現在、リストビューに画像を読み込もうとしています。設定方法は、名前の場所など、オブジェクトのすべてのプロパティを設定しています。そのうちの1つはイメージであることがあります。現在、イメージを設定するたびに、URLに移動するメソッドを呼び出すたびに、イメージを取得するためにトークンを使用する必要があります。一度取得すると、私はちょうど持っている画像に可変ビットマップ画像を設定します。

これは非常に遅く、恐ろしく見えます。私はいくつかのサードパーティを見ましたが、イメージビューに直接ロードします。オブジェクトを設定してイメージを作成する必要があります。ここで

public class conversationsFragment extends Fragment { 
private String currentUserId; 
private ArrayAdapter namesArrayAdapter; 
//private ArrayList<String> names; 
//private ListView usersListView; 
private RecyclerView usersListView; 
String names[] = {"Anant Kharod, MD", "Mustafa Ahmed, MD"}; 
String msg[] = {"What time do you want to get started adding more stuff go over the line", "Presentation is tomorrow"}; 
boolean readUnread [] = {false,false}; 
public static int [] images={R.drawable.msgone,R.drawable.msgtwo}; 

ArrayList<MessageData> arrMessageData; //= new ArrayList<MessageData>(); 
//CustomAdapterConversations adapter; 
conversationRecyclerViewAdapter adapter; 
Bitmap image; 


public conversationsFragment() { 
    // Required empty public constructor 
} 

@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 

} 

@Override 
public View onCreateView(LayoutInflater inflater, ViewGroup container, 
         Bundle savedInstanceState) { 

    // Inflate the layout for this fragment 
    View rootView = inflater.inflate(R.layout.fragment_conversations, container, false); 
rootView.findViewById(R.id.conversationsListView); 
     usersListView = (RecyclerView) rootView.findViewById(R.id.conversationsListView); 




    callApi(); 


    return rootView; 

} 

private Handler handler = new Handler() { 
    @Override 
    public void handleMessage(Message msg) { 
     switch (msg.what) { 
      case 1: 
       adapter = new conversationRecyclerViewAdapter(getActivity().getBaseContext(), arrMessageData); 
       usersListView.setAdapter(adapter); 
       LinearLayoutManager layoutManager 
         = new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false); 
       usersListView.setLayoutManager(layoutManager); 
       break; 
      default: 
       Log.d("TAG", msg.what + " ? "); 
       break; 
     } 
    } 
}; 

private void callApi() { 
    String username, passowrd; 
    username = "user"; 
    passowrd = "passwd"; 
    //OkHttpClient client = new OkHttpClient.Builder().addNetworkInterceptor(new StethoInterceptor()).build(); 


    OkHttpClient client = new OkHttpClient.Builder().addInterceptor(new BasicAuthInterceptor()).addNetworkInterceptor(new StethoInterceptor()).build(); 

    String credentials = "ezhu:Ccare@123"; 
    String auth = "Basic " 
      + Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP); 

    Log.e("Test", auth); 


    //SharedPreferences preferences = this.getActivity().getSharedPreferences("token", Context.MODE_PRIVATE); 

    SharedPreferences settings = PreferenceManager 
      .getDefaultSharedPreferences(getActivity()); 
    String auth_token_string = settings.getString("token", ""/*default value*/); 
    String auth_token_type = settings.getString("tokenType", ""); 
    String userId = settings.getString("userId", ""); 

    Log.i("prefs", auth_token_type); 



    String url = "https://staging.vitalengine.com/portal-api/api/user/inbox/list?userId=" + 
      userId + 
      "&folderId=-1&tagId=0&page=1&itemPerPage=1000&showMsgInFolder=false"; 


    Request request = new Request.Builder().url(url) 
      .addHeader("Authorization", auth_token_type + " " + auth_token_string) 
      .addHeader("user-tz", "-330") 
        //.addHeader("Content-Type", "application/json") 
      .build(); 




    client.newCall(request).enqueue(new Callback() { 
     @Override 
     public void onFailure(Call call, IOException e) { 
      // Log.i(TAG, "call api error"); 
      Log.e("Volley", e.toString()); 
     } 

     @Override 
     public void onResponse(Call call, okhttp3.Response response) { 

      try { 
       if (!response.isSuccessful()) 
        throw new IOException("Unexpected code " + response); 
       final String body = response.body().string(); 

       //final String jsonData = response.body().string(); 
       JSONObject Jobject = new JSONObject(body); 




//JSONArray Jarray = Jobject.getJSONArray("inboxMsgList"); 
       JSONObject sub = Jobject.getJSONObject("response"); 
       JSONArray Jarray = sub.getJSONArray("inboxMsgList"); 

       //Log.e("Array", String.valueOf(Jarray.length())); 




       arrMessageData = new ArrayList<>(); 

       for (int i = 0; i < Jarray.length(); i++) { 
        JSONObject object = Jarray.getJSONObject(i); 

        if (object.get("messageType").equals("CONVERSATION")) { 

         //String time = object.get("conversationDate"); 

         Log.e("ConversationTest", object.getString("fromUser")); 

         MessageData msg3 = new MessageData(); 
         msg3.setName((String) object.get("fromUser")); 
         msg3.setMessage((String) object.get("message")); 
         getImage((String) object.get("photo")); 
         msg3.setImage(image); 
         msg3.setRead(true); 
         msg3.setSubject((String) object.get("subject")); 
         msg3.setType((String) object.get("conversationDate")); 
         msg3.setId((Integer) object.get("conversationId")); 

         arrMessageData.add(msg3); 
        } else { 
         //Log.e("DetailObject", object.getString("fromUser")); 
        } 


        //Log.e("DetailObject", object.getString("fromUser")); 
        //Log.e("DetailObject", msg3.getName()); 

        handler.sendEmptyMessage(1); 

       } 


       // Log.e("FullJsonReply", body.toString()); 
      } catch (Exception e) { 
       //Log.e("Volley2", e.toString()); 
      } 

     } 


    }); 
} 
public void getImage(String id) throws IOException { 

    String credentials = "ezhu:Ccare@123"; 
    String auth = "Basic " 
      + Base64.encodeToString(credentials.getBytes(), Base64.NO_WRAP); 

    Log.e("Test", auth); 


    //SharedPreferences preferences = this.getActivity().getSharedPreferences("token", Context.MODE_PRIVATE); 

    SharedPreferences settings = PreferenceManager 
      .getDefaultSharedPreferences(getActivity()); 
    String auth_token_string = settings.getString("token", ""/*default value*/); 
    String auth_token_type = settings.getString("tokenType", ""); 
    String userId = settings.getString("userId", ""); 

    Log.i("prefs", auth_token_type); 




    URL imgurl = new URL("https://staging.vitalengine.com/portal-api/" + id); 
    URLConnection conn = imgurl.openConnection(); 
    conn.addRequestProperty("Authorization", auth_token_type + " "+ auth_token_string); 
    conn.connect(); 

    InputStream in = conn.getInputStream(); 

    Bitmap bmp = BitmapFactory.decodeStream(in); 



} 

}

それのGIF http://g.recordit.co/gGlG99jWm9.gif

Answer 1

このLibのAndroid-Universal-Image-Loaderを試してみてくださいです。

1. そして、メモリとディックにキャッシュされるように設定します。 Configuration Linked

2. 使用法：あなたはピカソを使用するか、画像ローダーとして滑空する必要があります

ImageLoader imageLoader = ImageLoader.getInstance(); // Get singleton instance // Load image, decode it to Bitmap and display Bitmap in ImageView (or any other view // which implements ImageAware interface) imageLoader.displayImage(imageUri, imageView);