我的提示框要等到文件下载完成后才会显示出来(我已经注释掉了下载函数)。有什么想法吗?
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
ImageView main_image_view = (ImageView)this.findViewById(R.id.main_image_view);
TextView text_view = (TextView)this.findViewById(R.id.main_text_view);
Context context = getApplicationContext();
CharSequence text = "File Not Found. Downloading... Please be patient, it's a large file!";
int duration = Toast.LENGTH_SHORT;
Toast toast = Toast.makeText(context, text, duration);
toast.show();
// This function fetches a file from a URL.
brain = get_frame_fl(file_name, mActive_slice);
brain_slice = Bitmap.createBitmap(brain_pixels, frame_width, frame_height, Bitmap.Config.ARGB_8888);
// display
main_image_view.setImageBitmap(brain_slice);
}