如何在android中设置进度条？

Question

我想设置进度条直到下一个活动开始。这意味着我想在加载下一页或活动时删除黑屏。如何解决这个问题？

是的，我正在使用按钮 onClick 并使用 listView 来移动下一个活动。

Answer 1

Button b1 = new Button(this);
b1.setOnTouchListener(new OnTouchListener() 
            {
                public boolean onTouch(View v, MotionEvent event) 
                {
                    int action = event.getAction();
                     if(action==0)
                     {
                     }
                     else  if(action == 1)
                     {   
                        final ProgressDialog dialog = ProgressDialog.show(myFirstActivity.this,"Please wait","Loading...",true);
                         new Thread() 
                         {
                               public void run() 
                               {
                                    try 
                                    {
                                        Thread.sleep(2000);
                                    } catch (InterruptedException e) 
                                    {
                                        e.toString();
                                        e.printStackTrace();
                                    }
                                    finally
                                    {
                                        dialog.dismiss();           
                                    }
                               }
                         }.start();
                      } 
                    return false;
                }
            });



     b1.setOnClickListener(new OnClickListener()
                {
                    public void onClick(View v) 
                    {
                             Intent i1 = new Intent(myFirstActiviyt.this,Second.class);
                             startActivity(i1);
                             }
                             });

试试这个

Answer 2

尝试在此链接上回答

show progressbar on button click when going from 1 intent to other and data is coming from server

Answer 3

http://developer.android.com/reference/android/widget/ProgressBar.html