activity_main.xml
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:paddingBottom="@dimen/activity_vertical_margin"
android:paddingLeft="@dimen/activity_horizontal_margin"
android:paddingRight="@dimen/activity_horizontal_margin"
android:paddingTop="@dimen/activity_vertical_margin"
tools:context=".MainActivity" >
<Button
android:id="@+id/button1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="34dp"
android:text="@string/b1" />
</RelativeLayout>
ActivityMain.java
package com.mahi.progressbar;
import android.os.Bundle;
import android.os.Handler;
import android.app.Activity;
import android.app.ProgressDialog;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
public class MainActivity extends Activity {
Button b;
ProgressDialog pb;
private int progressBarStatus = 0;
private Handler progressBarHandler = new Handler();
private long fileSize = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
addListenerOnButtonClick();
}
public void addListenerOnButtonClick() {
b = (Button) findViewById(R.id.button1);
b.setOnClickListener(new OnClickListener(){
@Override
public void onClick(View v) {
// creating progress bar dialog
pb = new ProgressDialog(v.getContext());
pb.setCancelable(true);
pb.setMessage("File downloading ...");
pb.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
pb.setProgress(0);
pb.setMax(100);
pb.show();
//reset progress bar and filesize status
progressBarStatus = 0;
fileSize = 0;
new Thread(new Runnable() {
public void run() {
while (progressBarStatus < 100) {
// performing operation
progressBarStatus = doOperation();
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
// Updating the progress bar
progressBarHandler.post(new Runnable() {
public void run() {
pb.setProgress(progressBarStatus);
}
});
}
if (progressBarStatus >= 100) {
// sleeping for 1 second after operation completed
try {
Thread.sleep(1000);
} catch (InterruptedException e) {e.printStackTrace();}
pb.dismiss();
}
}
}).start();
}//end of onClick method
});
}
public int doOperation() {
while (fileSize <= 10000) {
fileSize++;
if (fileSize == 1000) {
return 10;
}
else if (fileSize == 2000) {
return 20;
}
else if (fileSize == 3000) {
return 30;
}
else if (fileSize == 4000) {
return 40;
}
else if (fileSize == 5000) {
return 50;
}
else if (fileSize == 6000) {
return 60;
}
else if (fileSize == 7000) {
return 70;
}
else if (fileSize == 8000) {
return 80;
}
else if (fileSize == 9000) {
return 90;
}
else if (fileSize == 10000) {
return 100;
}
}
return 100;
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
}
Output:
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