在Android中从Url获取图像

<uses-permission android:name="android.permission.INTERNET" />

private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
    protected Bitmap doInBackground(String... urls) {
        String imageUrl = urls[0];
        Bitmap bitmap = null;
        try {
            URL url = new URL(imageUrl);
            HttpURLConnection connection = (HttpURLConnection) url.openConnection();
            connection.setDoInput(true);
            connection.connect();
            InputStream input = connection.getInputStream();
            bitmap = BitmapFactory.decodeStream(input);
        } catch (IOException e) {
            e.printStackTrace();
        }
        return bitmap;
    }

    protected void onPostExecute(Bitmap result) {
        // 在这里可以将获取到的图像显示到ImageView或其他UI元素上
    }
}

// 调用异步任务来获取图像
String imageUrl = "https://example.com/image.jpg";
new DownloadImageTask().execute(imageUrl);