如何在 ProgressDialog 关闭后立即执行指令/方法? [英] How to execute an instruction/method immediately after ProgressDialog dismisses?

问题描述

我正在尝试执行方法 doSomeWork(); 在 ProgressDialog 在我的方法 printing(); 中解散后，该方法似乎与其他方法和对话框没有出现.如果我评论方法 doSomeWork(); 对话框会正确显示，直到线程完成.

I am trying to execute the method doSomeWork(); after the ProgressDialog dismisses in my method printing();which seems to be overlapped by the other method and the dialog is not showed up. If I comment method doSomeWork(); the dialog is displayed correctly until the thread is finished.

这是我的方法 printing();

  public void printing()
{

    final ProgressDialog printingDialog = ProgressDialog.show(this, "Printing...", "Please wait", true, false);

    new Thread(new Runnable() {
        @Override
        public void run() 
        {

          //something big executing here
        }
        }).start();

}

他是我的方法doSomework():

    public void doSomeWork(){

        Thread receiptPrint = new Thread(new Runnable() {

            @Override
            public void run() {

               //something here

                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        //another dialog here
                    }
                });

            }
            });
}

在这里你可以看到我是如何调用这两个方法的:

Here you can see the how I am calling those two methods:

    private OnClickListener onClickPrint = new OnClickListener() {

    public void onClick(final View v) {

            Log.d("Button","Clicked on Print Order Button");

                    printing();
                    doSomeWork();

有谁知道我怎样才能在 printing(); 完全完成时才执行 doSomeWork()?

Does anyone know how could I execute doSomeWork() only when printing(); will be completely finished?

推荐答案

这是 AsyncTask 的目的之一.它看起来类似于:

This is one of the purposes of an AsyncTask. It would look similar to this:

public void onClick(final View v) {

    new AsyncTask<Void, Void, Void>() {

        @Override
        protected void onPreExecute() {

            //Show your progress dialog in here
            super.onPreExecute();
        }

        @Override
        protected Void doInBackground( Void... params ) {

            printing();
            return null;
        }

        @Override
        protected void onPostExecute( Void result ) {

            //Dismiss your progress dialog here
            doSomeWork();
        }
    }.execute();
}

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