c#xamarin循环进度条 - Android

Question

创建了一个循环进度条,它与动画一起正常工作.但在尝试使用动态数据显示它时,进度条不会更新.

下面的代码工作正常

  progrssBarObj = FindViewById<ProgressBar>(Resource.Id.progressBarSync);

  ObjectAnimator animation = ObjectAnimator.OfInt(progrssBarObj, "progress", 0, 100); // see this max value coming back here, we animale towards that value
  animation.SetDuration(3000); //in milliseconds
  animation.SetInterpolator(new DecelerateInterpolator());
  animation.Start();

和AXML代码是

<ProgressBar
            style="?android:attr/progressBarStyleHorizontal"
            android:layout_column="2"
            android:id="@+id/progressBarSync"
            android:layout_width="300dp"
            android:layout_height="300dp"
            android:progressDrawable="@drawable/circular_progress_bar"
            android:background="@drawable/progress_bar_background" />

但是当我在循环中尝试类似的东西时,进度条没有更新数据.基本上进度条没有在圆圈中更新.

           for (int i = 0; i <= 100; i++)
            {
                int cnt = 0;
                cnt = cnt + i;
                progrssBarObj.Progress = cnt;

            }

任何帮助将不胜感激.

Answer 1

我把for循环保留在新任务中并且它已经工作了

await Task.Run(() =>
{
  for (int i = 0; i < dtITM.Rows.Count; i++)
  {
    int cnt = 0;
    cnt = cnt + i;
    progrssBarObj.Progress = cnt;
  }
}