android - ProgressDialog 关闭 onClick

Question

我启动一个 AsyncTask 来加载一个需要一些时间的文件。为了通知用户我正在显示一个 ProgressDialog，但是如果我触摸屏幕 ProgressDialog 会立即关闭。这可能是什么原因造成的？

 public LoadTask(Activity activity, FaceRecognizer recognizer,SecretKey key) {
    this.key = key;     
    this.recognizer = recognizer;       
    dialog = new ProgressDialog(activity);

}

@Override
protected void onPreExecute() {
    dialog.setMessage("Loading the recognizer...");
    dialog.show();
}

@Override
protected Boolean doInBackground(Void... params) {
    recognizer.load(key);
    return null;
}

@Override
protected void onPostExecute(Boolean result) {

    if (dialog.isShowing()) {
        dialog.dismiss();
    }       

Answer 1

使用这个...

public LoadTask(Activity activity, FaceRecognizer recognizer,SecretKey key) {
    this.key = key;     
    this.recognizer = recognizer;       
    dialog = new ProgressDialog(activity);
     /////////////////////////////////////////// 
    dialog.setCancelable(false);
           //or////////
    dialog.setCanceledOnTouchOutside(false);
}