从自动下载网址

时间:2018-06-05 15:40:41

标签: android android-imageview picasso android-glide

调用我的网址时,会自动从服务器下载图片。我需要在Android ImageView上显示此图像。我通常使用Piccaso库从网址加载图片,但这对我没有帮助,有没有办法将图片从自动下载网址加载到Android ImageView?

自动下载网址示例位于here(wallpaperswide.com/download/bike_chase-wallpaper-2560x1600.jpg)

1 个答案:

答案 0 :(得分:0)

好吧如果不想像Piccaso那样使用像这样的东西:

public class AsyncTaskLoadImage  extends AsyncTask<String, String, Bitmap> {
    private final static String TAG = "AsyncLoadImage"; 
    private ImageView imageView;
    public AsyncTaskLoadImage(ImageView imageView) {
    this.imageView = imageView;
    }
    @Override
    protected Bitmap doInBackground(String... params) {
        Bitmap bitmap = null;
        try {
            URL url = new URL(params[0]);
                bitmap = BitmapFactory.decodeStream((InputStream)url.getContent());
    } catch (IOException e) {
        Log.e(TAG, e.getMessage());
    }
        return bitmap;
    }
    @Override
    protected void onPostExecute(Bitmap bitmap) {
       StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder().permitAll().build();
       StrictMode.setThreadPolicy(policy);              
       imageView.setImageBitmap(bitmap);
    }
}

你打电话给你的活动,如:

String url = "YOUR_LINK_HERE";
new AsyncTaskLoadImage(imageView).execute(url);

使用较少的代码尝试like this answer

URL url = new URL("YOUR_LINK_HERE");
Bitmap bmp = BitmapFactory.decodeStream(url.openConnection().getInputStream());
imageView.setImageBitmap(bmp);