为Asynctask中的Progressbar添加Timer()

public class MyTask extends AsyncTask<Void, Integer, Void> {
    private ProgressBar progressBar;
    private Timer timer;

    public MyTask(ProgressBar progressBar) {
        this.progressBar = progressBar;
    }

    @Override
    protected void onPreExecute() {
        super.onPreExecute();
        progressBar.setMax(100);
    }

    @Override
    protected Void doInBackground(Void... voids) {
        // 执行耗时操作
        timer = new Timer();
        timer.schedule(new TimerTask() {
            int progress = 0;

            @Override
            public void run() {
                // 更新进度条的进度
                progress += 10;
                publishProgress(progress);
                if (progress >= 100) {
                    // 完成任务
                    cancel();
                }
            }
        }, 0, 1000); // 每隔1秒更新一次进度条
        return null;
    }

    @Override
    protected void onProgressUpdate(Integer... values) {
        super.onProgressUpdate(values);
        progressBar.setProgress(values[0]);
    }

    @Override
    protected void onPostExecute(Void aVoid) {
        super.onPostExecute(aVoid);
        // 完成任务后的操作
        progressBar.setVisibility(View.GONE);
        timer.cancel();
    }
}

ProgressBar progressBar = findViewById(R.id.progressBar);
MyTask myTask = new MyTask(progressBar);
myTask.execute();