java - 如何使进度条前进

Question

我希望进度条在匹配字符串时增加。就像如果我点击是，是的栏会增加。但出于某种原因，我无法让它取得进展。

代码:

public class result extends VoteActivity{

        private ProgressBar mProgress;
     private int mProgressStatus = 0;

     private Handler mHandler = new Handler();

     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);

         setContentView(R.layout.alert);
if(choice=="Yes")
{   
         mProgress = (ProgressBar) findViewById(R.id.p1);

         // Start lengthy operation in a background thread
         new Thread(new Runnable() {
             public void run() {

                     ++mProgressStatus;


                     // Update the progress bar
                     mHandler.post(new Runnable() {
                         public void run() {
                             mProgress.setProgress(mProgressStatus);
                         }
                     });

             }
         }).start();
}

我在这里做错了什么？

Answer 1

您不能将字符串与 == 进行比较。您需要使用 equals():

if(choice.equals("Yes"))