activity_main.xml
<RelativeLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/rl"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:padding="10dp"
tools:context=".MainActivity"
android:background="#d6e6de"
>
<Button
android:id="@+id/btn"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Create ProgressBar"
/>
<Button
android:id="@+id/btn_start"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="Start Operation"
android:layout_toRightOf="@id/btn"
/>
<TextView
android:id="@+id/tv"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@id/btn_start"
/>
</RelativeLayout>
MainActivity.java
package com.cfsuman.me.androidcodesnippets;
import android.graphics.Color;
import android.graphics.PorterDuff;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.widget.Button;
import android.widget.RelativeLayout;
import android.widget.TextView;
import android.widget.ProgressBar;
import android.os.Handler;
import android.widget.RelativeLayout.LayoutParams;
public class MainActivity extends Activity {
private int progressStatus = 0;
private Handler handler = new Handler();
ProgressBar pb;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// Get the widgets reference from XML layout
final RelativeLayout rl = (RelativeLayout) findViewById(R.id.rl);
final Button btn = (Button) findViewById(R.id.btn);
final Button btn_start = (Button) findViewById(R.id.btn_start);
final TextView tv = (TextView) findViewById(R.id.tv);
btn.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
//ProgressBar(Context context, AttributeSet attrs, int defStyleAttr)
// Initialize a new Progressbar instance
// Create a new progress bar programmatically
pb = new ProgressBar(getApplicationContext(), null, android.R.attr.progressBarStyleHorizontal);
// Create new layout parameters for progress bar
LayoutParams lp = new LayoutParams(
550, // Width in pixels
LayoutParams.WRAP_CONTENT // Height of progress bar
);
// Apply the layout parameters for progress bar
pb.setLayoutParams(lp);
// Get the progress bar layout parameters
LayoutParams params = (LayoutParams) pb.getLayoutParams();
// Set a layout position rule for progress bar
params.addRule(RelativeLayout.BELOW, tv.getId());
// Apply the layout rule for progress bar
pb.setLayoutParams(params);
// Set the progress bar color
pb.getProgressDrawable().setColorFilter(Color.BLUE, PorterDuff.Mode.SRC_IN);
// Finally, add the progress bar to layout
rl.addView(pb);
}
});
btn_start.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
// Set the progress status zero on each button click
progressStatus = 0;
// Start the lengthy operation in a background thread
new Thread(new Runnable() {
@Override
public void run() {
while(progressStatus < 100){
// Update the progress status
progressStatus +=1;
// Try to sleep the thread for 20 milliseconds
try{
Thread.sleep(20);
}catch(InterruptedException e){
e.printStackTrace();
}
// Update the progress bar
handler.post(new Runnable() {
@Override
public void run() {
pb.setProgress(progressStatus);
// Show the progress on TextView
tv.setText(progressStatus+"");
}
});
}
}
}).start(); // Start the operation
}
});
}
}




- Horizontal ProgressBar example
- How to change horizontal ProgressBar color
- How to change ProgressBar color programmatically
- ProgressBar example
- How to show an indeterminate ProgressBar
- How to create a circle ProgressBar
- How to create a vertical ProgressBar
- How to show a ProgressDialog without text
- How to create transparent background ProgressDialog
- How to create a spinner style ProgressDialog