Android SeekBar Minimum Value

JavaAndroidAndroid ViewSeekbar

Java Problem Overview

How to define a SeekBar's minimum value? Is this done in the XML layout or do I need to define it programatically?

Basically I need to change my minimum value from 0 to 0.2

Java Solutions

Solution 1 - Java

> How to define a SeekBar's minimum value?

You can't define the minimum value. It is 0.

> Basically I need to change my minimum > value from 0 to 0.2

When you get the value, add 0.2 to it.

Solution 2 - Java

Here is what I use to get android:max for a max/min range for a SeekBar.

mSeekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
    int progressChanged = minimumValue;

    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
        progressChanged = minimumValue+ progress;
    }
});

So you will get the range minimum to minimum+max;

To set the max value in xml, use max=(desiredMax-min);

Solution 3 - Java

Basically I have added the size+10 which will automatically set the min to 10 you can change yours to set it which min. value.

@Override
public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
	int siz = size + 10;
	txtViewFontSize.setTextSize(siz);

	Toast.makeText(this, String.valueOf(siz), Toast.LENGTH_SHORT).show();

}

Solution 4 - Java

The min value must be 0 for the SeekBar object in Java (i.e., it cannot be changed), but this is how to get the required look and performance.

Suppose you want your min to be 5 and your max to be 100...

Therefore, you have a range of 95, so you would need to set up the SeekBar with a maximum value of 95.

If your seekbar has UI labels, you would make them 5 (min) and 100 (max).

So, the layout XML would be something like...

<LinearLayout
    android:id="@+id/sampleSizeLayout"
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:layout_below="@+id/batchDurationSecsLayout"
    android:orientation="vertical"
    android:visibility="visible" >

    <TextView
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:text="@string/sample_size" />

    <SeekBar
        android:id="@+id/sampleSizeSeekBar"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:max="95" />

	<RelativeLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="horizontal"
        android:visibility="visible" >

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_alignParentTop="true"
            android:gravity="left"
            android:text="5" />

        <TextView
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_alignParentTop="true"
            android:gravity="right"
            android:text="100" />

    </RelativeLayout>
    
</LinearLayout>

So now you can introduce the 5 correction, like this...

final SeekBar sampleSizeSeekBar = (SeekBar)findViewById(R.id.sampleSizeSeekBar);
final int sampleSizeSeekBarCorrection = 5; //e.g., 95 <--> 100
int realValueFromPersistentStorage = appObj.getSampleSize(); //Get initial value from persistent storage, e.g., 100
sampleSizeSeekBar.setProgress(realValueFromPersistentStorage - sampleSizeSeekBarCorrection); //E.g., to convert real value of 100 to SeekBar value of 95.
sampleSizeSeekBar.setOnSeekBarChangeListener(new OnSeekBarChangeListener() {
	
    int val = sampleSizeSeekBar.getProgress();
    
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
    	val = progress + sampleSizeSeekBarCorrection; //e.g., to convert SeekBar value of 95 to real value of 100
    }

    public void onStartTrackingTouch(SeekBar seekBar) {
    }

    public void onStopTrackingTouch(SeekBar seekBar) {
    	try {
            appObj.saveSampleSize(val); //Save real value to persistent storage, e.g., 100
        	appObj.makeToast("Sample size set to " + val);
    	}
    	catch(Exception e) {
    		Log.e(LOG_TAG, "Error saving sample size", e);
			appObj.makeToast("Error saving sample size: " + e);
    	}
    }
});

This solution will give your seekbar the correct min, max and scale on the UI, and the position of the control won't 'jump' to the right if the user slides it all the way to the left.

Solution 5 - Java

My solution which works fine for me is:

    @Override 
 public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
    if (progress <= SOME_LIMIT) {
        seekBar.setProgress(SOME_LIMIT);
    } else {
       // DO SOMETHING
    }

}

Solution 6 - Java

In api versions >=26 you can now add min xml attribute to SeekBar:

android:min="0.2"

Solution 7 - Java

You can not set progress in float because seekbar.getProgress() always returns integer value. Following code will set textview value to 0.2 if seekbar value is 0. you can change minimumVal according to your requirement.

int minimumVal = 0;

seekBar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
            @Override
            public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {


                if (progress >= minimumVal) {
                    seekBar.setProgress(progress);
                    textView.setText(progress);
                } else {
                    seekBar.setProgress(minimumVal);
                    textView.setText("0.2");
                }
            }

            @Override
            public void onStartTrackingTouch(SeekBar seekBar) {

            }

            @Override
            public void onStopTrackingTouch(SeekBar seekBar) {

            }
        });

Solution 8 - Java

I created this simple library, it's not much, but it can save you some time.

https://github.com/joaocsousa/DoubleSeekBar

Solution 9 - Java

You can try doing this way:

int yourMinProgress = 10;

private SeekBar.OnSeekBarChangeListener onSeekBarChangeListener =
    new SeekBar.OnSeekBarChangeListener() {
        @Override
        public void onProgressChanged(SeekBar seekBar, int progress, boolean b) {

            if (progress < yourMinProgress) {
                seekBar.setProgress(10);
            }
        }

        @Override
        public void onStartTrackingTouch(SeekBar seekBar) {

        }

        @Override
        public void onStopTrackingTouch(SeekBar seekBar) {

        }
    };

Solution 10 - Java

Here is how i did this with Kotlin:

view.controlTextSize.setOnClickListener {

        textSizeControl.textSizeControlSlider.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener{

            override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
                var progress = progress
                if (progress < 10){
                    progress = 10
                    seekBar?.progress = progress
                }

                view.content.textSize = progress.toFloat()
                prefs.edit().putFloat("ContentTextSize", progress.toFloat()).apply()
            }

            override fun onStartTrackingTouch(seekBar: SeekBar?) {}

            override fun onStopTrackingTouch(seekBar: SeekBar?) {}
        })
        textSizeControl.show()
    }

Solution 11 - Java

this code works for me fine!!!

SeekBar seekBar = (SeekBar)findViewById(R.id.seekBar);
seekBar.setMax(100);
seekBar.setProgress(40);
seekBar.setOnSeekBarChangeListener(seekBarChangeListener);

SeekBar.OnSeekBarChangeListener seekBarChangeListener = new SeekBar.OnSeekBarChangeListener() {
    @Override
    public void onProgressChanged(SeekBar seekBar, int progress, boolean b) {
        if(progress <= 40){
            seekBar.setProgress(40);
        }
        if(progress >= 40) {
            pgr_status.setText(String.valueOf(progress));
        }
    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {

    }

    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {

    }
};

Solution 12 - Java

I finally found a way to set seekBar minimum value, just set set your setOnSeekBarChangeListener like this:

int minimumValue = 10; // your minimum value
seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
    @Override
    public void onProgressChanged(SeekBar seekBar, int progress, boolean fromUser) {
		// you can set progress value on TextView as usual
        txtProgress.setText(String.valueOf(progress));

    }

    @Override
    public void onStartTrackingTouch(SeekBar seekBar) {

    }

    @Override
    public void onStopTrackingTouch(SeekBar seekBar) {
        if(seekBar.getProgress() < minimumValue)
            seekBar.setProgress(minimumValue);

    }
});

Hope this helps :)

Solution 13 - Java

If you are using com.android.support:preference-v7, SeekBarPreference already has a method setMin(int).

Just call that in onCreatePreferences() of your PreferenceFragmentCompat.

XML values will still be ignored on API < 26 but setting it programatically, works.

Categories
Recommended Java Solutions
Recommended Android Solutions
Recommended Android View Solutions
Recommended Seekbar Solutions

Previous Solution:

shared global variables in C

CVariablesLinkerGlobal VariablesScope

Next Solution:

Why are Python Programs often slower than the Equivalent Program Written in C or C++?

C++PythonCPerformanceProgramming Languages

Attributions

All content for this solution is sourced from the original question on Stackoverflow.

The content on this page is licensed under the Attribution-ShareAlike 4.0 International (CC BY-SA 4.0) license.

Content TypeOriginal AuthorOriginal Content on Stackoverflow
QuestionSachinView Question on Stackoverflow
Solution 1 - JavaCommonsWareView Answer on Stackoverflow
Solution 2 - JavaAsthmeView Answer on Stackoverflow
Solution 3 - JavaSALMANView Answer on Stackoverflow
Solution 4 - Javaban-geoengineeringView Answer on Stackoverflow
Solution 5 - JavaSzabolcs BeczeView Answer on Stackoverflow
Solution 6 - JavaJoão MagalhãesView Answer on Stackoverflow
Solution 7 - JavaDharmeshView Answer on Stackoverflow
Solution 8 - JavaJoao SousaView Answer on Stackoverflow
Solution 9 - JavaSashaView Answer on Stackoverflow
Solution 10 - JavaRiajulView Answer on Stackoverflow
Solution 11 - JavaKarthickView Answer on Stackoverflow
Solution 12 - JavaBehzad BahmanyarView Answer on Stackoverflow
Solution 13 - JavahoshiKuzuView Answer on Stackoverflow