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Number Picker - Android Tutorial

Here we are going to see how to use NumberPicker.

NumberPicker is a widget that enables the user to select a number from a predefined range.

We can see the NumberPicker in Old Style of TimePicker

How it works - 
       You can select the values on scroll up or down
       You can also edit the value that on view

Lets see an Example to implement (E.g. for Select the date)


Create and XML
<LinearLayout
    android:id="@+id/id_picker_ll"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="horizontal"
    android:weightSum="3">

    <NumberPicker
        android:id="@+id/year_pick"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginRight="1dp"
        android:layout_weight="1"/>

    <NumberPicker
        android:id="@+id/month_pick"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginRight="0.5dp"
        android:layout_marginLeft="0.5dp"
        android:layout_weight="1"/>

    <NumberPicker
        android:id="@+id/date_pick"
        android:layout_width="0dp"
        android:layout_height="wrap_content"
        android:layout_marginLeft="1dp"
        android:layout_weight="1"/>

</LinearLayout>

In Your class

if (pickYear != null) {
    pickYear.setMinValue(1950);
    pickYear.setMaxValue(2019);
    pickYear.setWrapSelectorWheel(true);
    pickYear.setValue(2019);
    pickYear.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
        @Override
        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
            String text = "YEAR from " + oldVal + " to " + newVal;
            Toast.makeText(MainActivity.this, text, Toast.LENGTH_SHORT).show();
            strYear = ""+newVal;
        }
    });
}

Text in Number Picker

if (pickMonth != null) {
    final String[] values = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
    pickMonth.setMinValue(0);
    pickMonth.setMaxValue(values.length - 1);
    pickMonth.setDisplayedValues(values);
    pickMonth.setWrapSelectorWheel(true);
    pickMonth.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
        @Override
        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
            String text = "MONTH from " + oldVal + " to " + newVal;
            month =newVal;
            setDay();
            strMonth = values[newVal];
            Toast.makeText(MainActivity.this, text, Toast.LENGTH_SHORT).show();
        }
    });
}

if (pickDay != null) {
    int maxValue;

    if(month==0||month==2||month==4||month==6||month==7||month==9||month==11){
        maxValue = 31;
    }else if(month==3||month==5||month==8||month==10||month==12){
        maxValue = 30;
    }else{
        maxValue = 29;
    }
    pickDay.setMinValue(1);
    pickDay.setMaxValue(maxValue);
    pickDay.setWrapSelectorWheel(true);
    pickDay.setOnValueChangedListener(new NumberPicker.OnValueChangeListener() {
        @Override
        public void onValueChange(NumberPicker picker, int oldVal, int newVal) {
            String text = "DAY from " + oldVal + " to " + newVal;
            strDat = ""+newVal;
            Toast.makeText(MainActivity.this, text, Toast.LENGTH_SHORT).show();
        }
    });
}

___________________________________________________________________________

Happy Coding...

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