我不是通過使用此代碼

Question

我使用下面的代碼

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

    img = (ImageView)findViewById(R.id.imgview); 

    Bitmap bm = getBitmapFromURL("http://l.yimg.com/a/i/us/we/52/21.gif"); 
    if(bm == null) 
     Toast.makeText(this, "Image can't load", 1).show(); 
    else 
     img.setImageBitmap(bm); 
} 


public static Bitmap getBitmapFromURL(String src) { 
    try { 
     Log.e("src",src); 
     URL url = new URL(src); 
     HttpURLConnection connection = (HttpURLConnection) url.openConnection(); 
     connection.setDoInput(true); 
     connection.connect(); 
     InputStream input = connection.getInputStream(); 
     Bitmap myBitmap = BitmapFactory.decodeStream(input); 
     Log.e("Bitmap","returned"); 
     return myBitmap; 
    } catch (IOException e) { 
     e.printStackTrace(); 
     Log.e("Exception",e.getMessage()); 
     return null; 
    } 
} 

}

我得到一個消息正從URL圖像「圖像無法加載」

Answer 1

請嘗試下面的代碼。

ImageView img; 
@Override 
public void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.main); 

    img = (ImageView)findViewById(R.id.imgview); 

    Drawable image = getBitmapFromURL("http://l.yimg.com/a/i/us/we/52/21.gif"); 
    if(image == null) 
     Toast.makeText(this, "Image can't load", 1).show(); 
    else 
     img.setImageDrawable(image); 
} 

public Drawable getBitmapFromURL(String url) { 
try { 
    InputStream is = (InputStream) new URL(url).getContent(); 
    Drawable d = Drawable.createFromStream(is, "src name"); 
    return d; 
} catch (Exception e) { 
    return null; 
} 

}

Answer 2

試試這個..

private Bitmap downloadUrl(String url) { 
       InputStream myInputStream =null; 
      Bitmap myBitmap; 
     StringBuilder sb = new StringBuilder(); 
       //adding some data to send along with the request to the server 
     sb.append("name=Anthony"); 
     URL url; 
     try { 
      url = new URL(url); 
      HttpURLConnection conn = (HttpURLConnection) url.openConnection(); 
      conn.setDoOutput(true); 
      conn.setRequestMethod("POST"); 
      OutputStreamWriter wr = new OutputStreamWriter(conn 
        .getOutputStream()); 
         // this is were we're adding post data to the request 
         wr.write(sb.toString()); 
      wr.flush(); 
      myInputStream = conn.getInputStream(); 
      wr.close(); 
        myBitmap = BitmapFactory.decodeStream(myInputStream); 

     } catch (Exception e) { 
         //handle the exception ! 
      Log.d(TAG,e.getMessage()); 
     } 
       return myBitmap; 
}