I have a seekbar for example: from 0 to 10. How can I make if I want to set seekbar to 5 as default position. So in this example seekbar should start from middle.
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5 Answers
48
Use this one
android:progress="5"
Like "progress", it inherits some of it's attributes from ProgressBar. You find all the attributes at http://developer.android.com/reference/android/widget/SeekBar.html

mseo
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I guess that I can do that by this Java code, too right?: seekBar.incrementProgressBy(10); But if I want to increment progress by more then 100, it doesn't work. Do you have any idea? – Adam Jan 10 '12 at 18:18
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What's your max progress value? Did you call setMax(int max)? I think you should set this to an according value. – mseo Jan 10 '12 at 18:48
25
To get Seekbar at the value of 5
In the xml layout use the max value as 10
android:max="10"
In the java for seekbar to get at progress 5
seekbar = (SeekBar) findViewById(R.id.seekBar1);
seekbar.setProgress(5);
thats it :)
4
I hope this code surely helps you.
Try this...
float discrete=0;
float start=0;
float end=100;
float start_pos=0;
int start_position=0;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
start=-10; //you need to give starting value of SeekBar
end=10; //you need to give end value of SeekBar
start_pos=5; //you need to give starting position value of SeekBar
start_position=(int) (((start_pos-start)/(end-start))*100);
discrete=start_pos;
SeekBar seek=(SeekBar) findViewById(R.id.seekBar1);
seek.setProgress(start_position);
seek.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
@Override
public void onStopTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
Toast.makeText(getBaseContext(), "discrete = "+String.valueOf(discrete), Toast.LENGTH_SHORT).show();
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {
// TODO Auto-generated method stub
}
@Override
public void onProgressChanged(SeekBar seekBar, int progress,boolean fromUser) {
// TODO Auto-generated method stub
// To convert it as discrete value
float temp=progress;
float dis=end-start;
discrete=(start+((temp/100)*dis));
}
});
}

Brad Larson
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Balaji Gunasekar
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default value By xml :
android:progress="5"
max value by xml
android:max="10"

Ucdemir
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final Timer timer = new Timer();
seekBar_efficiency.setMax(40);
seekBar_efficiency.setProgress(35);
timer.schedule(new TimerTask() {
@Override
public void run() {
seekBar_efficiency.setProgress(20);
timer.cancel();
}
}, 200, 50);

Chuck D
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RAJESH JEDI
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