numberpicker

问题 I'm trying to create a dialog with 2 NumberPickers. I would like them to be default Holo theme styled. I cant find any good examples. So far i got: LayoutInflater inflater = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); View npView = inflater.inflate(R.layout.number_picker_dialog, null); NumberPicker minPicker = (NumberPicker) npView.findViewById(R.id.min_picker); minPicker.setMaxValue(100); minPicker.setMinValue(0); NumberPicker maxPicker =

问题 I'm trying to create a dialog with 2 NumberPickers. I would like them to be default Holo theme styled. I cant find any good examples. So far i got: LayoutInflater inflater = (LayoutInflater) getApplicationContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE); View npView = inflater.inflate(R.layout.number_picker_dialog, null); NumberPicker minPicker = (NumberPicker) npView.findViewById(R.id.min_picker); minPicker.setMaxValue(100); minPicker.setMinValue(0); NumberPicker maxPicker =

问题 Does anyone know of an easy way to allow negative numbers with Android's default numberpicker? I understand that it's the InputFilter that disallows this, but is there any easy way to override without rewriting the whole widget? 回答1: A more generic and elegant solution is to use NumberPicker.Formatter and use only positive numbers in the NumberPicker. Example if I want to select a number in [-50, 50]: final int minValue = -50 final int maxValue = 50 NumberPicker numberPicker = new

问题 I want to create a timer and since I couldn't create a digital interface that is editable for the user to set the time I want to use the NumberPicker. However the NumberPicker only displays 1 digit for the numbers between 0-9. How do you format the picker so that it will display two digits such as 01 02 03 and so forth. 回答1: numberPicker.setMaxValue(10); numberPicker.setMinValue(0); numberPicker.setFormatter(new NumberPicker.Formatter() { @Override public String format(int i) { return String

问题 I have managed to create a number picker that loops through 5 to 60 in increments of 5. My only problem is that when I get to 60, the application crashes. //Number pickers int minValue = 5; int maxValue = 60; int step = 5; String[] numberValues = new String[maxValue/minValue]; for (int i = minValue; i <= maxValue; i+= step) { numberValues[(i/step)-1] = String.valueOf(i); } mNumberPicker = (NumberPicker)findViewById(R.id.numberPicker); mNumberPicker.setMinValue(0); mNumberPicker.setMaxValue(60

问题 I am trying to show two number picker on dialog using java only, The code is working but i am not able to arrange it on equal width. here is my code RelativeLayout relative = new RelativeLayout(mContext); final NumberPicker aNumberPicker = new NumberPicker(mContext); aNumberPicker.setMaxValue(50); aNumberPicker.setMinValue(1); final NumberPicker aNumberPickerA = new NumberPicker(mContext); aNumberPickerA.setMaxValue(11); aNumberPickerA.setMinValue(1); aNumberPickerA.setDisplayedValues(new

问题 I have two issues, first one is removing the divider in the NumberPicker and I'm extending the NumberPicker in Android to solve this issue, like this: import android.content.Context; import android.content.res.Resources; import android.util.AttributeSet; import android.widget.NumberPicker; import java.lang.reflect.Field; public class ExtendedNumberPicker extends NumberPicker { public ExtendedNumberPicker(Context context, AttributeSet attrs) { super(context, attrs); Class<?> numberPickerClass

问题 I am trying to implement NumberPicker in my application. I want the view to be as show in Dialogs Guide,which is what i get when i implement the number picker Also, i do not want to have text selected when i tap on selected item, from scroller P.S. I tried searching around google and SO, but could not find correct answer for my question I implemented solution provided here at SO. Have already defined listener for value changed. Tutorial/Guide is here, it just a quick overview of NumberPicker

问题 I've seen older posts and all the answers suggest to clearFocus. I can't do that, because my TimePicker isn't inside a dialog, so I don't know when I should call clearFocus() function and probably it will crash my app if I would try to modify TimePicker after. I'm sure this problem has a solution because the Alarm app which comes with Android do this feature without a dialog. Any answer is welcome, Regards! 回答1: You should use TimePicker.OnTimeChangedListener to handle onTimeChanged action if

问题 The Android NumberPicker widget has a lot of space between the current item and the blue lines above and below it. Is there any way to change this spacing to be more compact, so the whole widget does not take so much vertical space? (I do not want to scale the entire widget, just reduce the spacing). 回答1: You can to customize the DatePicker using a Library. In example below has a class named "NumberPicker.java", that you can change the vertical spacing and other things. https://github.com