如何在毕加索中加载图像前显示prograss栏。然后，如果加载了图像，则在android中启动stories progressview

implementation 'com.squareup.picasso:picasso:2.71828'

<ProgressBar
    android:id="@+id/progressBar"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_centerInParent="true"
    android:visibility="visible" />

ProgressBar progressBar = findViewById(R.id.progressBar);
ImageView imageView = findViewById(R.id.imageView);

Picasso.get()
    .load("your_image_url")
    .into(imageView, new Callback() {
        @Override
        public void onSuccess() {
            progressBar.setVisibility(View.GONE);
        }

        @Override
        public void onError(Exception e) {
            // 处理加载错误的情况
        }
    });