プログレスバーは一度だけロードします

Question

プログレスバーは1回だけ使用できます.2回目にクリックすると、ループが好きで終わりはなく、問題は何ですか？

class ProgressThread extends Thread { 

    final static int DONE = 0; 
    final static int RUNNING = 1; 
    int maxBarValue=100; 
    int delay=40; 

    Handler mHandler; 
    int mState; 
    int total; 

    // Constructor with an argument that specifies Handler on main thread 
    // to which messages will be sent by this thread. 

    ProgressThread(Handler h) { 
     mHandler = h; 
    } 


    @Override 
    public void run() { 
     mState = RUNNING; 
     total = maxBarValue; 
     while (mState == RUNNING) { 
      // The method Thread.sleep throws an InterruptedException if Thread.interrupt() 
      // were to be issued while thread is sleeping; the exception must be caught. 
      try { 
       // Control speed of update (but precision of delay not guaranteed) 
       Thread.sleep(delay); 
      } catch (InterruptedException e) { 
       Log.e("ERROR", "Thread was Interrupted"); 
      } 

      // Send message (with current value of total as data) to Handler on UI thread 
      // so that it can update the progress bar. 

      Message msg = mHandler.obtainMessage(); 
      Bundle b = new Bundle(); 
      b.putInt("total", total); 
      msg.setData(b); 
      mHandler.sendMessage(msg); 
      total--; // Count down 
     } 
     total=maxBarValue; 
    } 


public class ProgressBarActivity extends Activity { 

    ProgressThread progThread; 
    ProgressDialog progDialog; 
    Button button1, button2; 
    int typeBar;      // Determines type progress bar: 0 = spinner, 1 = horizontal 
    int delay = 40;     // Milliseconds of delay in the update loop 
    int maxBarValue = 200;   // Maximum value of horizontal progress bar 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     // Process button to start spinner progress dialog with anonymous inner class 
     button1 = (Button) findViewById(R.id.Button01); 
     button1.setOnClickListener(new OnClickListener(){ 
      public void onClick(View v) { 
       typeBar = 0; 
       showDialog(typeBar); 
      } 
     }); 

     // Process button to start horizontal progress bar dialog with anonymous inner class 
     button2 = (Button) findViewById(R.id.Button02); 
     button2.setOnClickListener(new OnClickListener(){ 
      public void onClick(View v) { 
       typeBar = 1; 
       showDialog(typeBar); 
      } 
     }); 
    } 

    // Method to create a progress bar dialog of either spinner or horizontal type 
    @Override 
    protected Dialog onCreateDialog(int id) { 
     switch(id) { 
     case 0:      // Spinner 
      progDialog = new ProgressDialog(this); 
      progDialog.setProgressStyle(ProgressDialog.STYLE_SPINNER); 
      progDialog.setMessage("Loading..."); 
      progThread = new ProgressThread(handler); 
      progThread.start(); 
      return progDialog; 
     case 1:      // Horizontal 
      progDialog = new ProgressDialog(this); 
      progDialog.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL); 
      progDialog.setMax(maxBarValue); 
      progDialog.setMessage("Dollars in checking account:"); 
      progThread = new ProgressThread(handler); 
      progThread.start(); 
      return progDialog; 
     default: 
      return null; 
     } 
    } 

    // Handler on the main (UI) thread that will receive messages from the 
    // second thread and update the progress. 

    final Handler handler = new Handler() { 
     public void handleMessage(Message msg) { 
      // Get the current value of the variable total from the message data 
      // and update the progress bar. 
      int total = msg.getData().getInt("total"); 
      progDialog.setProgress(total); 
      if (total <= 0){ 
       dismissDialog(typeBar); 
       progThread.setState(ProgressThread.DONE); 
      } 
     } 
    }; 
} 


    // Set current state of thread (use state=ProgressThread.DONE to stop thread) 
    public void setState(int state) { 
     state=ProgressThread.DONE; 
     mState = state; 
    } 
} 

Answer 1

ProgressBar.postInvalidate()これを試すことができます。