How to implements Custom progress-bar in android

                      Introduction custom progress-bar ;

The custom progress-bar implement as per your need(Best style).Android provided default multiple progress-bar widgets in multiple style ,but you have to change the progress-bar style for example:-

change progress color and progress style via pro-grammatically in android.

Customprogress_bar.java

package com.example.custom_progrss;

import android.content.Context;

import android.graphics.Canvas;

import android.graphics.Color;

import android.graphics.Paint;

import android.graphics.Rect;

import android.util.AttributeSet;

import android.widget.ProgressBar;

public class Customprogress_Bar extends ProgressBar {  

    private String text;

    private Paint textPaint;

    public Customprogress_Bar(Context context) {

        super(context);

        text = "External Memory";

        textPaint = new Paint();

        textPaint.setColor(Color.BLACK);

    }

    public Customprogress_Bar(Context context, AttributeSet attrs) {

        super(context, attrs);

        text = "External Memory";

        textPaint = new Paint();

        textPaint.setColor(Color.BLACK);

    }

    public Customprogress_Bar(Context context, AttributeSet attrs, int defStyle) {

        super(context, attrs, defStyle);

        text = "External Memory";

        textPaint = new Paint();

        textPaint.setColor(Color.BLACK);

    }

    @Override

    protected synchronized void onDraw(Canvas canvas) {

        // First draw the regular progress bar, then custom draw our text

        super.onDraw(canvas);

        Rect bounds = new Rect();

        textPaint.getTextBounds(text, 0, text.length(), bounds);

        int x = getWidth()/2  - bounds.centerX();

        int y = getHeight()/2 - bounds.centerY();

        canvas.drawText(text, x, y, textPaint);

    }

    public synchronized void setText(String text) {

        this.text = text;

        drawableStateChanged();

    }

    public void setTextColor(int color) {

        textPaint.setColor(color);

        drawableStateChanged();

    }

}

you have implement progress-bar in .xml  class same name of above java class. show example.

<com.example.custom_progrss.Customprogress_Bar

    android:id="@+id/player_hp_bar"

    style="?android:attr/progressBarStyleHorizontal"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:max="100"                                   

    android:maxHeight="20dip"

    android:minHeight="20dip"

    android:progress="0" />

complete main.xml class.

<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" >

    

<com.example.custom_progrss.Customprogress_Bar

    android:id="@+id/player_hp_bar"

    style="?android:attr/progressBarStyleHorizontal"

    android:layout_width="fill_parent"

    android:layout_height="wrap_content"

    android:max="100"

    android:maxHeight="20dip"

    android:minHeight="20dip"

    android:progress="0" />

<Button

    android:id="@+id/button1"

    android:layout_width="wrap_content"

    android:layout_height="wrap_content"

    android:layout_centerHorizontal="true"

    android:layout_centerVertical="true"

    android:layout_marginLeft="82dp"

    android:text="Button" />

</RelativeLayout>

.................................................................................................................................................................

MainActivity.java

package com.example.custom_progrss;

import android.os.Bundle;

import android.app.Activity;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

import android.widget.ProgressBar;

public class MainActivity extends Activity {

Customprogress_Bar expBar;

ProgressBar p;

Button btn;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

expBar = (Customprogress_Bar) findViewById(R.id.player_hp_bar);

        expBar.setProgressDrawable(getResources().getDrawable(R.drawable.green_progress));

        //p=(ProgressBar)findViewById(R.id.player_hp);

        btn=(Button)findViewById(R.id.button1);

        btn.setOnClickListener(new OnClickListener() {

@Override

public void onClick(View v) {

// TODO Auto-generated method stub

download( );

}

});

}

 

public void download( ){

     

     

     final int totalProgressTime = 100;

     final Thread t = new Thread() {

        @Override

        public void run() {

           int jumpTime = 0;

           

           while(jumpTime < totalProgressTime) {

              try {

                 sleep(200);

                 jumpTime += 5;

                 expBar.setProgress(jumpTime);

              }

              catch (InterruptedException e) {

                 // TODO Auto-generated catch block

                 e.printStackTrace();

              }

           }

        }

     };

     t.start();

  }

}

Thank you .....................................................