How to utilize the ProgressBar control to display the progress of a task?

The ProgressBar control is a user interface control used to display task progress, commonly utilized in Android development to show the progress of long-running tasks.

To display the progress of a task using a ProgressBar control, the first step is to add the ProgressBar control in the XML layout file.

<ProgressBar
    android:id="@+id/progressBar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    style="?android:attr/progressBarStyleHorizontal" />

Next, in the Activity or Fragment, use the findViewById method to locate the ProgressBar widget and set the progress value.

ProgressBar progressBar = findViewById(R.id.progressBar);
progressBar.setMax(100); // 设置ProgressBar的最大进度值
progressBar.setProgress(50); // 设置当前进度值为50

During the execution of the task, you can continuously update the progress value of the ProgressBar to display the progress of the task. For example:

for (int i = 0; i <= 100; i++) {
    progressBar.setProgress(i);
    try {
        Thread.sleep(100); // 模拟耗时操作
    } catch (InterruptedException e) {
        e.printStackTrace();
    }
}

By following the above steps, you can use the ProgressBar control in the application to display the progress of tasks. You can customize the style, color, and progress value of the ProgressBar based on actual needs to enhance the user experience.