进度对话框后面的对话

Question

我已经创建了一个对话框，它用信息.But更新了xml，在弹出.How的对话框后面显示了进度对话框，我用膨胀的xml显示了对话框顶部的进度对话框。

public class MainActivity extends Activity {

     protected void onCreate(Bundle savedInstanceState) {
            super.onCreate(savedInstanceState);
            setContentView(R.layout.activity_main);


           dialog();
        }


        public class loadasync extends AsyncTask<Void, Void, JSONObject> {

            ProgressDialog progressDialog ;
            @Override
            protected JSONObject doInBackground(Void... params) {
                    }
            @Override
            protected void onPreExecute() {
                // TODO Auto-generated method stub

                super.onPreExecute();
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                          progressDialog = new ProgressDialog(MainActivity.this);
                        progressDialog.setMessage("loading");
                        progressDialog.setCanceledOnTouchOutside(false);
                        progressDialog.show();
                    }
                });         
            }

            @Override
            protected void onPostExecute(JSONObject result) {


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


                         progressDialog.dismiss();   
                    }       
                });
            }
        }   



        public void dialog() {

            dialog = new Dialog(MainActivity.this);
             dialog.setContentView(R.layout.dialogxml);

        loadasync loadasyncdata=new loadasync();
        loadasyncdata.executeOnExecutor(AsyncTask.THREAD_POOL_EXECUTOR);


            dialog.show();


        }

Answer 1

我看不到您在代码中使用的是setProgressStyle()。这就是：

 progessDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER);

例如。

因此，在您的代码中，请尝试以下操作：

 public void run() {
                    progressDialog = new ProgressDialog(MainActivity.this);
                    progressDialog.setMessage("loading");
                    progressBar.setProgressStyle(ProgressDialog.STYLE_SPINNER);
                    progressDialog.setCanceledOnTouchOutside(false);
                    progressDialog.show();
                }

Answer 2

需要考虑的是: OnPostExecute和onPreExecute都在UI线程上运行，所以您可以删除runOnUIThread内容，只需执行以下操作

        protected void onPreExecute() {
          progressDialog = new ProgressDialog(MainActivity.this);
          progressDialog.setMessage("loading");
          progressDialog.setCanceledOnTouchOutside(false);
          progressDialog.show();
        }

和分别在onPostExecute中

       protected void onPostExecute(JSONObject result) {
          progressDialog.dismiss();   
        }

也许应该是个评论但是名声..。