Using Thread and Progress bar : Progress « UI « Android

1. Android
2. UI
3. Progress

Using Thread and Progress bar

   
package app.test;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.widget.ProgressBar;

public class Test extends Activity {

  private static int progress;
  private ProgressBar progressBar;
  private int progressStatus = 0;
  private Handler handler = new Handler();

  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    progress = 0;
    progressBar = (ProgressBar) findViewById(R.id.progressbar);
    progressBar.setMax(200);

    new Thread(new Runnable() {
      public void run() {
        while (progressStatus < 200) {
          progressStatus = doSomeWork();
          handler.post(new Runnable() {
            public void run() {
              progressBar.setProgress(progressStatus);
            }
          });
        }
        handler.post(new Runnable() {
          public void run() {
            // ---0 - VISIBLE; 4 - INVISIBLE; 8 - GONE---
            progressBar.setVisibility(8);
          }
        });
      }

      private int doSomeWork() {
        try {
          // ---simulate doing some work---
          Thread.sleep(50);
        } catch (InterruptedException e) {
          e.printStackTrace();
        }
        return ++progress;
      }
    }).start();
  }
}

//main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent" >
    
 <ProgressBar android:id="@+id/progressbar"
        android:layout_width="wrap_content" 
        android:layout_height="wrap_content"
        style="?android:attr/progressBarStyleHorizontal" />
        
</LinearLayout>

   
    
    
  

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