Android多线程从网络下载图片到本地存储的代码

把代码过程经常用到的内容做个备份，下面的代码内容是关于Android多线程从网络下载图片到本地存储的代码。

private static final String TAG = "DownloadToPhone"; protected static final String IMAGE_FILENAME = "news-thumb.png";

    private static final String PACKAGE_NAME = "com.myWebview";
    public void loadfile(){
        Runnable getImage = new Runnable(){
                public void run() {
                        try {
                        URL u = new URL(IMAGE_SOURCE);
                        HttpURLConnection c = (HttpURLConnection) u.openConnection();
                        c.setRequestMethod("GET");
                        c.setDoOutput(true);
                        c.connect();
                        
                        FileOutputStream f = openFileOutput(IMAGE_FILENAME, Activity.MODE_WORLD_WRITEABLE);
                        
                        InputStream in = c.getInputStream();
                        
                        byte[] buffer = new byte[1024];
            int len1 = 0;
            while ( (len1 = in.read(buffer)) > 0 ) {
                f.write(buffer,0, len1);
            }
            
            f.close();
            
            
                        
                        }catch (Exception e) {
                Log.e(TAG, "could not download and save IMAGE file", e);
            }
                }
        };
        new Thread(getImage).start();
}

}