android - 进度条 - 没有信息只是加载条

Question

下面是我的代码，只是一个简单的进度条。

我的问题是：

• 如何删除显示在该弹出进度条上的文本/信息，所以只有黄色条？

• 另外，我可以将颜色从黄色更改为蓝色吗？

  public class MainActivity extends Activity {
  
  Button btnStartProgress;
  ProgressDialog progressBar;
  private int progressBarStatus = 0;
  private Handler progressBarHandler = new Handler();
  
  private long fileSize = 0;
  
  @Override
  public void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);
      setContentView(R.layout.main_activity);
  
      addListenerOnButton();
  
  }
  
  public void addListenerOnButton() {
  
      btnStartProgress = (Button) findViewById(R.id.button1);
      btnStartProgress.setOnClickListener(
               new OnClickListener() {
  
         @Override
         public void onClick(View v) {
  
          // progress bar dialog
          progressBar = new ProgressDialog(v.getContext());
          progressBar.setCancelable(true);
          progressBar.setMessage("Progress Bar ... ");
          progressBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
          progressBar.setProgress(0);
          progressBar.setMax(100);
          progressBar.show();
  
          //reset progress bar status
          progressBarStatus = 0;
  
          //reset filesize
          fileSize = 0;
  
          new Thread(new Runnable() {
            public void run() {
              while (progressBarStatus < 100) {
  
                // process some tasks
                progressBarStatus = Tasks();
  
  
                try {
                  Thread.sleep(1000);
                } catch (InterruptedException e) {
                  e.printStackTrace();
                }
  
                // Update the progress bar
                progressBarHandler.post(new Runnable() {
                  public void run() {
                    progressBar.setProgress(progressBarStatus);
                  }
                });
              }
  
              // progress 100%
              if (progressBarStatus >= 100) {
  
                  // sleep 2 seconds, so that you can see the 100%
                  try {
                      Thread.sleep(2000);
                  } catch (InterruptedException e) {
                      e.printStackTrace();
                  }
  
                  // close the progress bar dialog
                  progressBar.dismiss();
              }
            }
             }).start();
  
             }
  
              });
  
      }
  
  public int Tasks() {
  
      while (fileSize <= 1000000) {
  
          fileSize++;
  
          if (fileSize == 100000) {
              return 10;
          } else if (fileSize == 200000) {
              return 20;
          } else if (fileSize == 300000) {
              return 30;
          } else if (fileSize == 500000) {
              return 50;
          } else if (fileSize == 900000) {
              return 90;
          }
  
      }
  
      return 100;
  
  }}
  

Answer 1

我找到了两个很好的教程：

TUT1

TUT2

对于 ProgresDialog 的自定义，请选中此。并且：

<style name="pbStyle" parent="android:Theme.Dialog">
<item name="android:textColor">#FFFFFFFF</item>
<item name="android:background">#FF0000FF</item>
<item name="android:windowBackground">@android:color/transparent</item>
</style>