协议未找到Android的工作室

Question

我有下载从我的网址的图像则说，协议没有发现，你可以在我的截图看到HttpURLConnection Error Message 该URL有一个麻烦的“http：//”附到它。我已阅读并尝试了此网站中的所有其他解决方案，但无济于事。

这是我目前正在处理的来源。

public class MainActivity extends AppCompatActivity { 

    DBHandler myDB; 
    public String defaultURL = "http://ae1230ohx8.smartrelease.jp/eflends/"; // Default URL 
    private WebView webView; 
    private String selectedLinkTitle; //link that was passed from FavoriteList 
    private String searchedURL; // search URL from MainMenu (Search field) 
    Map<String,String> listFavoriteDataDB;//links and id from Favorites table DB 

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

     setContentView(R.layout.activity_main); 

     WebViewClient mWebViewClient = new WebViewClient(); 
     webView = (WebView) findViewById(R.id.webView1); 
     webView.getSettings().setJavaScriptEnabled(true); 
     webView.setWebViewClient(mWebViewClient); 


     myDB = new DBHandler(this); 

     final ImageView favoriteBtn = (ImageView)findViewById(R.id.favorite); 
     final ImageView menuBtn = (ImageView)findViewById(R.id.mainmenu); 
     final ImageView backBtn = (ImageView)findViewById(R.id.backMainView); 

     getDBData(); //get the data 

     //set the onclick listener for favorite btn 
     favoriteBtn.setOnClickListener(new View.OnClickListener() 
     { 
      @Override 
      public void onClick(View v) 
      { 


       String webUrl = webView.getUrl(); 
       String webUrlTitle = webView.getTitle(); 
       Boolean isFavorite = isFave(webUrl); 

       if(webUrl!="") { 
        if(isFavorite.equals(false)){ 
         myDB.insertData(webUrl, webUrlTitle); 
         Toast.makeText(getApplicationContext(), "お気に入りに追加されました。", Toast.LENGTH_LONG).show(); 
         favoriteBtn.setImageResource(R.drawable.favorites_added); 

         webView.evaluateJavascript("document.head.querySelector(\"[property='og:image']\").content", new ValueCallback<String>() { 
          @Override 
          public void onReceiveValue(String s) { 
           getBitmapFromURL(s); 
          } 
         }); 

        } else { 
         if(webUrl.contains("/lens/")) { 
          if (webUrl.contains("ef-l")) { 
           favoriteBtn.setImageResource(R.drawable.favorites_notadded_white); 
          } else { 
           favoriteBtn.setImageResource(R.drawable.favorites_notadded); 
          } 
         } else { 

          favoriteBtn.setImageResource(R.drawable.favorites_notadded); 

         } 
         deleteFavorite(webUrlTitle); 
        } 
       } 
      } 
     }); 

     //set the onclick listener for menu btn 
     menuBtn.setOnClickListener(new View.OnClickListener() 
     { 
      @Override 
      public void onClick(View v) 
      { 
      String webUrl = webView.getUrl(); 
      Intent intent = new Intent(MainActivity.this, MainMenu.class); 
      intent.putExtra("currentURL",webUrl); 
      startActivity(intent); 
      overridePendingTransition(R.anim.slide_from_right, R.anim.slide_to_left); 
      } 
     }); 

     //set the onclick listener for back button 
     backBtn.setOnClickListener(new View.OnClickListener() 
     { 
      @Override 
      public void onClick(View v) 
      { 
       if(webView.canGoBack()) 
        webView.goBack(); 
      } 
     }); 


     loadWeb(); 
    } 


    public void loadWeb(){ 
     //  //dynamically sets the button if the url is found in the db 
     webView.setWebViewClient(new WebViewClient(){ 

      final ImageView favoriteBtn = (ImageView)findViewById(R.id.favorite); 
      final ImageView menuBtn = (ImageView)findViewById(R.id.mainmenu); 
      final ImageView logo = (ImageView)findViewById(R.id.logo); 
      final Toolbar toolbar = (Toolbar)findViewById(R.id.toolbar3); 
      final TextView border = (TextView)findViewById(R.id.border); 
      final ImageView backBtn = (ImageView)findViewById(R.id.backMainView); 

      @Override 
      public void onReceivedHttpAuthRequest(WebView view, HttpAuthHandler handler, String host, String realm) { 
       handler.proceed("eflends", "test"); 
      } 

      public void onPageStarted(WebView view, String url, Bitmap favicon){ 

       favoriteBtn.setEnabled(true); 

       if(url.contains("/lens/")) { 
        if (url.contains("ef-l")) { 
         toolbar.setBackground(new ColorDrawable(Color.BLACK)); //make the bar black 
         menuBtn.setImageResource(R.drawable.main_menu_white); 
         logo.setImageResource(R.drawable.logo_canon01); 
         border.setBackgroundColor(Color.parseColor("#444444")); 
         backBtn.setImageResource(R.drawable.icon_arrow_left_white); 

         favoriteBtn.setImageResource(R.drawable.favorites_notadded_white); 


        } else { 
         toolbar.setBackground(new ColorDrawable(Color.WHITE)); //make it white 
         menuBtn.setImageResource(R.drawable.mainmenu); 
         logo.setImageResource(R.drawable.logo_canon02); 
         border.setBackgroundColor(Color.parseColor("#f0f0f0")); 
         backBtn.setImageResource(R.drawable.icon_arrow_left); 

         favoriteBtn.setImageResource(R.drawable.favorites_notadded); 


        } 

       } else { 

        toolbar.setBackground(new ColorDrawable(Color.WHITE)); //make it white for all 
        menuBtn.setImageResource(R.drawable.mainmenu); 
        logo.setImageResource(R.drawable.logo_canon02); 
        border.setBackgroundColor(Color.parseColor("#f0f0f0")); 
        backBtn.setImageResource(R.drawable.icon_arrow_left); 

        favoriteBtn.setImageResource(R.drawable.favorites_notadded); 


       } 

       if(webView.canGoBack()){ 
        backBtn.setVisibility(View.VISIBLE); 
       } else { 
        backBtn.setVisibility(View.INVISIBLE); 
       } 

       //check if url already exist. 
       if(listFavoriteDataDB != null && listFavoriteDataDB.containsValue(url)){ 
        favoriteBtn.setImageResource(R.drawable.favorites_added); 
       } 

      } 

      public void onPageFinished(WebView view, String url){ 


       if(webView.canGoBack()){ 
        backBtn.setVisibility(View.VISIBLE); 
       } else { 
        backBtn.setVisibility(View.INVISIBLE); 
       } 

      } 

     }); 

     loadURL(); 
    } 

    public boolean isFave(String webUrl){ 
     listFavoriteDataDB = new HashMap<String, String>(); 
     Cursor data = myDB.isFavorite(webUrl); 
     int rowCount = data.getCount(); 
     if(rowCount != 0){ 
      return true; 
     } 
     return false; 
    } 

    public void getDBData(){ 

     //get the urls from the db 
     listFavoriteDataDB = new HashMap<String, String>(); 
     Cursor data = myDB.getAllData(); 

     while(data.moveToNext()) { 
      listFavoriteDataDB.put(data.getString(1), data.getString(2)); //put title(key) and url(value) 
     } 

    } 

    public void loadURL() { 
     webView.loadUrl(defaultURL); 
    } 

    @Override 
    public void onBackPressed() { 
     if (webView.canGoBack()) { 
      webView.goBack(); 
     } else { 
      super.onBackPressed(); 
     } 
    } 

    @Override 
    public void onResume(){ 
     super.onResume(); 
     Window decorView = getWindow(); 
     // Hide the status bar. 
     decorView.setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); 

     // Calls the menu again. 
//  invalidateOptionsMenu(); 
     Log.e("APP :", "onResume"); 
    } 

    @Override 
    protected void onNewIntent(Intent intent) { 
     super.onNewIntent(intent); 

     String link = ""; 

     Bundle extras = intent.getExtras(); 
     //get the name that was passed 
     selectedLinkTitle = extras.getString("title"); 
     searchedURL  = extras.getString("url"); 
     String menuLink = extras.getString("linkFromMenu"); 

     //check if there is a passed value from favorite activity 
     if (selectedLinkTitle!=null || searchedURL!=null || menuLink!= null) { 

      if(selectedLinkTitle != null) { 
       link = listFavoriteDataDB.get(selectedLinkTitle); 
       Log.e("APP :", "loadURL - favorites"); 
      } else if (searchedURL != null){ 
       link = searchedURL.toString(); 
       Log.e("APP :", "loadURL - search"); 
      } else if (menuLink != null){ 
       link = menuLink.toString(); 
       Log.e("APP :", "load -" + menuLink); 
      } 

     } 

     webView.loadUrl(link); 
     Log.e("APP :", "onNewIntent"); 
    } 

    public void deleteFavorite(String title) { 
     int itemID = getItemID(title); 
     myDB.deleteFavoriteURL(itemID,title); 

     Toast.makeText(getApplicationContext(), "削除されました。", Toast.LENGTH_SHORT).show(); 

    } 

    public int getItemID(String title){ 
     Cursor data = myDB.getItemID(title); //get the itemID from Title 

     int itemID = -1; 

     while(data.moveToNext()){ 
      itemID = data.getInt(0); //get the ID 
     } 
     if(itemID > -1) { 
      return itemID; 
     }else{ 
      return itemID; 
     } 
    } 


    public void getBitmapFromURL(String imageUrl) { 

     try { 
      URL url = new URL(imageUrl); 
      HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 
      connection.setDoInput(true); 
      connection.connect(); 
      InputStream input = connection.getInputStream(); 
      Bitmap myBitmap = BitmapFactory.decodeStream(input); 
      Toast.makeText(getApplicationContext(), imageUrl, Toast.LENGTH_LONG).show(); 
     } catch (IOException e) { 
      Toast.makeText(getApplicationContext(), e.toString(), Toast.LENGTH_LONG).show(); 
     } 
    } 
} 

Answer 1

如果粘贴你的源代码，会更容易帮助你。

但我，已经有下载图像，而不使用毕加索，在这里不用了的AsyncTask我用：

import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.os.AsyncTask; 
import android.util.Log; 
import android.widget.ImageView; 

import java.io.IOException; 
import java.io.InputStream; 
import java.lang.ref.WeakReference; 
import java.net.HttpURLConnection; 

import br.com.soutsapp.Souts_v3.R; 

public class ImageDonwloaderTask extends AsyncTask<String, Void, Bitmap> { 

private final WeakReference<ImageView> imageViewReference; 

public ImageDonwloaderTask(ImageView imageView){ 
    imageViewReference = new WeakReference<ImageView>(imageView); 
} 

@Override 
protected Bitmap doInBackground(String... params) { 
    return getBitmapFromURL(params[0]); 
} 

@Override 
protected void onPostExecute(Bitmap bitmap) { 
    if (isCancelled()) { 
     bitmap = null; 
    } 

    ImageView imageView = imageViewReference.get(); 
    if (imageView != null) { 
     if(bitmap != null) { 
      imageView.setImageBitmap(bitmap); 
     } 
     else { 
      imageView.setImageDrawable(imageView.getContext().getResources().getDrawable(R.mipmap.ic_launcher)); 
     } 
    } 
} 

public Bitmap getBitmapFromURL(String src) { 
    Bitmap myBitmap = null; 

    try { 
     if(src != null){ 
      String newUrl = src.replace(" ", "%20"); 
      java.net.URL url = new java.net.URL(newUrl); 
      HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 
      connection.setDoInput(true); 
      connection.connect(); 
      InputStream input = connection.getInputStream(); 
      myBitmap = BitmapFactory.decodeStream(input); 
     } 

    } catch (IOException e) { 
     e.printStackTrace(); 
     Log.e("SOUTS", e.getLocalizedMessage()); 
    } 

    return myBitmap; 
} 
}