your example file error about range-seek-bar HOT 2 CLOSED

Hi ablozhou,

in Java, you need to "declare" all classes being used either by importing them 
or by refering to them with there fully qualified name. So you have two choices 
to make it work:

1. import the inner class "OnRangeSeekBarChangeListener":

import <your-package-name>.RangeSeekBar.OnRangeSeekBarChangeListener;

2. Import class "RangeSeekBar" and refer to "OnRangeSeekBarChangeListener" the 
following way:

seekBar.setOnRangeSeekBarChangeListener(new 
RangeSeekBar.OnRangeSeekBarChangeListener<Double>() { ...

hey hii i am tejas i am gatting an errror in [seekBar = (seekBar) 
findViewById(R.id.SeekBar01);] code and in [mediaPlayer = 
MediaPlayer.create(this,R.raw.testsong_20_sec);]code


the error is in raw word and in line of [findViewById(R.id.SeekBar);

i am giving u the whole set of code also below:



package teja.MusicPlayer.main;

import teja.MusicPlayer.main.R;

import android.app.Activity;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.os.Handler;
import android.view.MotionEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.View.OnTouchListener;
import android.widget.Button;
import android.widget.SeekBar;

public class MusicPlayerActivity extends Activity {

    private Button buttonPlayStop;
    private MediaPlayer mediaPlayer;
    private SeekBar seekBar;

    private final Handler handler = new Handler();

    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);

    }

    private void initView(){
        buttonPlayStop = (Button) findViewById(R.id.ButtonPlayStop);
        buttonPlayStop.setOnClickListener(new OnClickListener() {
            public void onClick(View v){buttonClick();}});

        mediaPlayer = MediaPlayer.create(this,R.raw.testsong_20_sec);

        seekBar = (seekBar) findViewById(R.id.SeekBar01);
        seekBar.setMax(mediaPlayer.getDuration());
        seekBar.setOnTouchListener(new OnTouchListener() { 
            public boolean onTouch(View v, MotionEvent arg1) {
                // TODO Auto-generated method stub
                seekChange(v);
                return false;
            }
        });

    }
    public void startPlayProgressUpdater() {
        seekBar.setProgress(mediaPlayer.getCurrentPosition());

        if (mediaPlayer.isPlaying()) {
            Runnable notification = new Runnable() {
                public void run() {
                    startPlayProgressUpdater();

                }
            };
            handler.postDelayed(notification,1000);
        }else{
            mediaPlayer.pause();
            buttonPlayStop.setText(getString(R.string.play_str));
            seekBar.setProgress(0);
        }
    }

    private void seekChange(View v){
        if(mediaPlayer.isPlaying()){
            SeekBar sb = (SeekBar)v;
            mediaPlayer.seekTo(sb.getProgress());

        }
    }

    private void buttonClick(){
        if (buttonPlayStop.getText() == getString(R.string.play_str)) {
            buttonPlayStop.setText(getString(R.string.pause_str));
            try{
                mediaPlayer.start();
                startPlayProgressUpdater();
            }catch (IllegalStateException e) {
                mediaPlayer.pause();
            }
        }else{
            buttonPlayStop.setText(getString(R.string.play_str));
            mediaPlayer.pause();
        }
    }
}
        plzzzz tell me the solution to get reed of this problem.....