如何在Java中立即显示ProgressBar对话框？

Question

我在一个单独的java文件中创建了一个进度条对话框：

public class AppUtil {
    // progress bar handling
    public static Dialog showProgress(Activity activity) {
        Dialog dialog = new Dialog(activity);
        dialog.requestWindowFeature(Window.FEATURE_NO_TITLE);
        dialog.getWindow().setBackgroundDrawable(
                new ColorDrawable(0));
        dialog.setContentView(R.layout.dialog_progress);
        ProgressBar progressBar = dialog.findViewById(R.id.progressBar);
        progressBar.getIndeterminateDrawable().setColorFilter(activity.getResources().getColor(R.color.fore_color), PorterDuff.Mode.MULTIPLY);
        dialog.setCancelable(false);
        dialog.show();
        return dialog;
    }
}

并且它有自己的

RelativeLayout

xml 资源布局：

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/rl_progress"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ProgressBar
        android:id="@+id/progressBar"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true" />

</RelativeLayout>

但是如果我在播放按钮中调用它，进度条不会立即显示，而是仅在

onClick

按钮完成时显示：

ImageButton buttonPlay = (ImageButton) currentItemView.findViewById(R.id.play);
buttonPlay.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        // play streaming
        SingleAudio sd = getItem(position);
        if (sd == null) {
            return;
        }
        
        dialog = AppUtil.showProgress(adapterActivity);
        sd.playerInstance.setDialog(dialog);

        if (sd.playerInstance.inPlay()) {
            sd.playerInstance.stop();
        } else {
            sd.playerInstance.play();
        }
    }
});

在我调用

showProgress()

后，我将对话框传递给播放器实例，以便在歌曲播放开始后关闭对话框，并且按钮播放更改为停止播放....我还尝试将

showProgress()

放入其中也有一个

adapterActivity.runOnUiThread

，但它不会立即显示...我想立即显示以防止用户再次单击按钮并等待播放过程完全开始....我是否错过了需要考虑的事情？

Answer 1

试试这个：

 ImageButton buttonPlay = (ImageButton) currentItemView.findViewById(R.id.play);
    buttonPlay.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            // Disable the button to prevent multiple clicks
            buttonPlay.setEnabled(false);
    
            // Show the progress dialog immediately
            dialog = AppUtil.showProgress(adapterActivity);
    
            // Start a background thread for audio playback
            new Thread(new Runnable() {
                @Override
                public void run() {
                    // Play streaming on the background thread
                    SingleAudio sd = getItem(position);
                    if (sd != null) {
                        sd.playerInstance.setDialog(dialog);
    
                        if (sd.playerInstance.inPlay()) {
                            sd.playerInstance.stop();
                        } else {
                            sd.playerInstance.play();
                        }
                    }
    
                    // Dismiss the progress dialog on the main UI thread
                    adapterActivity.runOnUiThread(new Runnable() {
                        @Override
                        public void run() {
                            dialog.dismiss();
                            // Re-enable the button when the operation is finished
                            buttonPlay.setEnabled(true);
                        }
                    });
                }
            }).start();
        }
    });