ProgressBar (Horizontal) - Android Widgets Example

package com.myapp;

import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.app.ProgressDialog;
import android.view.View;
import android.widget.Button;

public class MainActivity extends Activity {
	 
		Button btnDoWork;
		ProgressDialog progressBar;
		private int progressBarStatus = 0;
		private Handler progressBarHandler = new Handler();
	 
 
		@Override
		public void onCreate(Bundle savedInstanceState) {
			super.onCreate(savedInstanceState);
			setContentView(R.layout.activity_main);
			
			// button1 Do Work
			btnDoWork = (Button) findViewById(R.id.button1);
			btnDoWork.setOnClickListener(new View.OnClickListener() {
		            public void onClick(View v) { // Start Event onClick
		
		    			progressBar = new ProgressDialog(v.getContext());
						progressBar.setCancelable(true);
						progressBar.setMessage("Working... ...");
						progressBar.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
						progressBar.setProgress(0);
						progressBar.setMax(100);
						progressBar.show();
			 

						progressBarStatus = 0;
			 
								new Thread(new Runnable() {
								  public void run() {
									while (progressBarStatus < 100) {
					 
									  // process some tasks
									  progressBarStatus = DoWork();
					 
										try {
											Thread.sleep(300);
										} catch (InterruptedException e) {
											e.printStackTrace();
										}
						 
									  // Update the progress bar
									  progressBarHandler.post(new Runnable() {
										public void run() {
										  progressBar.setProgress(progressBarStatus);
										}
									  });
									}
							
						  }
					   }).start();
									
					
		            } // End Event onClick
		            
		        });
	 
		}
	 

	 
		// DoWork & Set Status Progress Bar
		public int DoWork() {
			
			// Do some work EG: Save , Download , Insert , ..
			// **** Work
			// **** Work
			// **** Work
			// **** Work
			progressBarStatus++; // Work process and return status
			
			if( progressBarStatus < 100)
			{
				return progressBarStatus;
			}
			
			// When Finish
			try {
				Thread.sleep(1000);
			} catch (InterruptedException e) {
				e.printStackTrace();
			}
			progressBar.dismiss();

			return 100;
	 
		}
	 
	}

	while (progressBarStatus < 100) {
		// process some tasks
		progressBarStatus = DoWork();
		Thread.sleep(300); // หยุดการทำงานประมาณ 0.3 วินาที
	}

	public int DoWork() {
		
		// Do some work EG: Save , Download , Insert , ..
		// **** Work
		// **** Work
		// **** Work
		// **** Work
		progressBarStatus++; // Work process and return status
		
		if( progressBarStatus < 100)
		{
			return progressBarStatus;
		}
		
		// When Finish
		try {
			Thread.sleep(1000);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		progressBar.dismiss();

		return 100;
 
	}

	public int DoWork() {
		
		int job = 1000;
		int process = job / 100;
		for(i=1;i<=job;i++)
		{
			Call insert data method();

			if(i % process  == 0)
			{
				progressBarStatus = progressBarStatus + 1; // Work process and return status
			}
		}
		
		
		if( progressBarStatus < 100)
		{
			return progressBarStatus;
		}
		
		// When Finish
		try {
			Thread.sleep(1000);
		} catch (InterruptedException e) {
			e.printStackTrace();
		}
		progressBar.dismiss();

		return 100;
 
	}

progressBar.setProgressStyle(ProgressDialog.STYLE_SPINNER);

<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />