如何將JPG URL遠程圖像轉換爲位圖？

Question

我想從一個URL（http://www.bbc.co.uk/blogs/spanish/ravsberg_442x330jpg.jpg）獲得一個遠程JPG文件並將其放入一個位圖。

我想使用此代碼：

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

但是代碼失敗就行了：InputStream input = connection.getInputStream();

我得到這個異常：

03-15 16:08:40.171: WARN/System.err(6526): java.io.FileNotFoundException: http://www.bbc.co.uk/blogs/spanish/ravsberg_442x330jpg.jpg 
03-15 16:08:40.186: WARN/System.err(6526):  at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:1162) 
03-15 16:08:40.186: WARN/System.err(6526):  at com.Magazine.Util.getBitmapFromURL(Util.java:69) 
03-15 16:08:40.194: WARN/System.err(6526):  at com.Magazine.magazine.getMiniature(magazine.java:32) 
03-15 16:08:40.194: WARN/System.err(6526):  at com.Magazine.MainMenu.generatePortraitGrid(MainMenu.java:141) 
03-15 16:08:40.202: WARN/System.err(6526):  at com.Magazine.MainMenu.onCreate(MainMenu.java:113) 
03-15 16:08:40.210: WARN/System.err(6526):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1047) 
03-15 16:08:40.210: WARN/System.err(6526):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2627) 
03-15 16:08:40.210: WARN/System.err(6526):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2679) 
03-15 16:08:40.210: WARN/System.err(6526):  at android.app.ActivityThread.access$2300(ActivityThread.java:125) 
03-15 16:08:40.217: WARN/System.err(6526):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2033) 
03-15 16:08:40.217: WARN/System.err(6526):  at android.os.Handler.dispatchMessage(Handler.java:99) 
03-15 16:08:40.217: WARN/System.err(6526):  at android.os.Looper.loop(Looper.java:123) 
03-15 16:08:40.225: WARN/System.err(6526):  at android.app.ActivityThread.main(ActivityThread.java:4627) 
03-15 16:08:40.225: WARN/System.err(6526):  at java.lang.reflect.Method.invokeNative(Native Method) 
03-15 16:08:40.225: WARN/System.err(6526):  at java.lang.reflect.Method.invoke(Method.java:521) 
03-15 16:08:40.225: WARN/System.err(6526):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:858) 
03-15 16:08:40.225: WARN/System.err(6526):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 
03-15 16:08:40.233: WARN/System.err(6526):  at dalvik.system.NativeStart.main(Native Method) 

Answer 1

看到你互聯網在清單中的權限，並檢查網址是否正確。 我使用的功能「urlImageToBitmap（String urlImage）」我得到這個頁面： http://www.tutorialandroid.com/basico/como-pasar-de-drawable-a-bitmap-y-descargar-imagen-de-internet-a-bitmap/ 我希望它能幫助你！

Answer 2

看看這個工作 - 呃：https://stackoverflow.com/a/4510418/1216540 它爲我工作。

問候函