关于UWP的进度条的处理的方案有两种方案

我们新建一个项目，然后处理的界面如下的代码

<Grid.RowDefinitions>

            <RowDefinition Height="Auto"/>

            <RowDefinition Height="Auto"/>

            <RowDefinition Height="Auto"/>

            <RowDefinition Height="Auto"/>

            <RowDefinition Height="Auto"/>

            <RowDefinition Height="*"/>

        </Grid.RowDefinitions>

            <TextBlock Text="选择" FontSize="20"

                       Grid.Row="0"

                       HorizontalAlignment="Center"/>

            <RadioButton Content="Determinate类型"

                         Height="71"

                         Name="radionButton1"

                         GroupName="Type"

                         Grid.Row="1"

                         HorizontalAlignment="Center"/>

            <RadioButton Content="Indeterminate类型"

                         Height="71"

                         Name="radioButton2"

                         GroupName="Type"

                         IsChecked="True"

                         Grid.Row="2"

                         HorizontalAlignment="Center"/>

            <Button Content="启动ProgressBar"

                    Height="72"

                    x:Name="Begin"

                    Click="Begin_Click"

                    Grid.Row="3"

                    HorizontalAlignment="Center"/>

            <Button Content="取消ProgressBar"

                    Height="72"

                    x:Name="Cancel"

                    Click="Cancel_Click"

                    Grid.Row="4"

                    HorizontalAlignment="Center"

                    VerticalAlignment="Center"/>

        <ProgressBar x:Name="ProgressBar" IsIndeterminate="True"

                         Grid.Row="5"

                     Height="24"/>

然后我们再来处理下界面的后台代码

public MainPage()

        {

            this.InitializeComponent();

            //初始化界面时，设置进度条不可见

            ProgressBar.Visibility = Visibility.Collapsed;

        }

        private void Begin_Click(object sender, RoutedEventArgs e)

        {

            //启动进度条，并可以显示状态

            ProgressBar.Visibility = Visibility.Visible;

            if (radionButton1.IsChecked==true)

            {

                //设置进度条的模式为不重复状态

                ProgressBar.IsIndeterminate = false;

                //启用定时器，再每下一秒改变原来的状态

                DispatcherTimer timer = new DispatcherTimer();

                timer.Interval = TimeSpan.FromSeconds(1);

                timer.Tick += timer_Tick;

                timer.Start();

            }

            else

            {

                ProgressBar.Value = 0;

                ProgressBar.IsIndeterminate = true;

            }

        }

        async void timer_Tick(object sender,object e)

        {

            if (ProgressBar.Value<100)

            {

                ProgressBar.Value += 10;

            }

            else

            {

                (sender as DispatcherTimer).Tick -= timer_Tick;

                (sender as DispatcherTimer).Stop();

                await new MessageDialog("进度100%").ShowAsync();

            }

        }

        private void Cancel_Click(object sender, RoutedEventArgs e)

        {

            ProgressBar.Visibility = Visibility.Collapsed;

        }

我们来看一下运行的效果吧

这是模拟了手机的界面运行的结果