Develop Reference

android SingleDateTimePicker, how to darken back view

I am using a third party library: SingleDateTimePicker https://github.com/florent37/SingleDateAndTimePicker
This is a great way to display a dialog at the bottom of the screen of date and time. This is how I am doing it:
new SingleDateAndTimePickerDialog.Builder(getContext())
.displayMinutes(false)
.bottomSheet()
.curved()
.displayListener(new SingleDateAndTimePickerDialog.DisplayListener(){
#Override
public void onDisplayed(SingleDateAndTimePicker picker) {
System.out.println("displayed");
}
})
.title("Select Time")
.listener(new SingleDateAndTimePickerDialog.Listener() {
#Override
public void onDateSelected(Date date) {
System.out.println(date.toString());
...
...
}
})
.display();
My only issue here is that when the picker pops up the back screen does not darken to emphasize the popup (like a dialog fragment). Is there a way to darken the background manually?
I tried to put the above library in a layout of its own and inflate it from a DialogFragment, however with this approach I am not sure how to call onDateSelected to get the date
(at the same time, DialogFragment impose certain layout parameters like, the dialog has to be in the middle of the screen and cannot have a width that match_parent. That is why I don't think that putting this in a Dialog Fragment is the way to go)
Note: the non-picker area is clickable. i.e. when clicked the picker area disappears
This is what I have:
This is what I want:

use this will take your application style :
https://github.com/Kunzisoft/Android-SwitchDateTimePicker

Can TimePicker be used without header on Android

I am using the <TimePicker> widget to enable the user to set the time.
However, since I'm embedding the <TimePicker> into one of my views, I'd like to get rid of the TimePicker's header (the crossed out area in the picture).
Default timepicker in Android looks like this:
Question: Is it possible to remove the timepicker's header and use only the analog part of the widget?

There is no public method in TimePicker to directly hide or show the Time Header. Try the below source code will give us the name of the resource ID for that View, which we can get with the system Resources. Then finding the View, and setting its visibility to GONE.(I haven't tested)
private void hideTimeHeaderLayout(TimePicker picker) {
final int id = Resources.getSystem().getIdentifier("time_header", "id", "android");
final View timeLayout = picker.findViewById(id);
if(timeLayout != null) {
timeLayout .setVisibility(View.GONE);
}
}

timepicker selected value text size [duplicate]

This question already has an answer here:
Implement iOS like time picker in Android
(1 answer)
Closed 5 years ago.
I want to change the selected text value size of a time picker.
Do we have any libraries for the same?
As I searched we do not have any customization in android. Need to develop a UI similar to iOS time picker.

For android brucetoo/PickView similar to IOS,
This is a helper lib for us to pick date or province like IOS system WheelView widget.
Added feature to pick time with WheelView Widget
Dependencies
compile 'com.brucetoo.pickview:library:1.2.3'
to use
DatePickerPopWin pickerPopWin = new DatePickerPopWin.Builder(MainActivity.this, new DatePickerPopWin.OnDatePickedListener() {
#Override
public void onDatePickCompleted(int year, int month, int day, String dateDesc) {
Toast.makeText(MainActivity.this, dateDesc, Toast.LENGTH_SHORT).show();
}
}).textConfirm("CONFIRM") //text of confirm button
.textCancel("CANCEL") //text of cancel button
.btnTextSize(16) // button text size
.viewTextSize(25) // pick view text size
.colorCancel(Color.parseColor("#999999")) //color of cancel button
.colorConfirm(Color.parseColor("#009900"))//color of confirm button
.minYear(1990) //min year in loop
.maxYear(2550) // max year in loop
.showDayMonthYear(true) // shows like dd mm yyyy (default is false)
.dateChose("2013-11-11") // date chose when init popwindow
.build();

How to set font size for items in Xamarin Picker?

I try to change the items font size in Xamarin.Picker for my Android app. In my project, I use BindablePicker that inherits from Picker class. Source here.
I spent some time to do research and I found that I should create a PickerRenderer class and render the Picker.
My renderer class:
public class BindablePickerRenderer : PickerRenderer
{
protected override void OnElementChanged(ElementChangedEventArgs<Picker> e)
{
base.OnElementChanged(e);
var picker = e.NewElement;
BindablePicker bp = (BindablePicker)this.Element;
if (this.Control != null)
{
var pickerStyle = new Style(typeof(BindablePicker))
{
Setters =
{
new Setter { Property = VisualElement.BackgroundColorProperty, Value = Color.Red }
}
};
picker.Style = pickerStyle;
}
}
}
For test purposes I set the backgroundColor for Picker and it works fine. However, in my PickerRenderer class I only have access to Control property which is type of Android.Widget.EditText.
The effect :
Question
How can I access to Picker items, and set the font size for them? Is this possible?
Here is my repository with an example project.
https://github.com/k8mil/PickerRendererXamarin
Related links
https://developer.xamarin.com/api/type/Xamarin.Forms.Picker/
Changing the default text color of a Picker control in Xamarin Forms for Windows Phone 8.1
Font size in Picker control in xamarin forms

I has been able to resolve this by add the line:
Control.TextSize = 30;
On OnElementChanged method:
public class BindablePickerRenderer : PickerRenderer
{
protected override void OnElementChanged(ElementChangedEventArgs<Picker> e)
{
base.OnElementChanged(e);
if (this.Control != null)
{
Control.TextSize = 30;
}
}
}
Maybe this can help someone that is looking for change font size of a Bindable picker.

After some research I don't think this is possible for a generic picker.
You would likely have an easier time just rolling your own picker control in Forms code using a clickable label that pops up a list to select from.
I was able to style a date or time picker using styles in the Android styles.xml file, but since Android does not have a built in generic picker widget, I imagine that Forms is rolling it's own picker list as I can't find the dialog widget to theme that changes your list text size.
For a DatePicker, I can just add the following to the main style element in styles.xml:
<item name="android:datePickerDialogTheme">#style/AppCompatDialogStyle</item>
and then add a new style element in style.xml
<style name="AppCompatDialogStyle" parent="Theme.AppCompat.Light.Dialog">
<item name="android:textSize">60sp</item>
</style>
The above does change the text size for a DatePicker (no custom renderer required). Also the customer picker renderer is a bit of a misnomer... it really is just rendering the edit text field that shows the picked item, and allows opening the picker list on click.
I know this is not a solution, but just an indication as to what I found when checking this out and a suggestion that it is likely easiest to not use the Forms Picker type if you want such customization.

How To Show The Current Time in TextView in Widget

I want to show the current time in updatable textView
I can't find the true way to make it
I want it to be updated every minute
Please anyone can help me ?
Thanks

Calendar cal = Calendar.getInstance();
SimpleDateFormat oSimpleDateFormat = new SimpleDateFormat("HH:mm:ss");
String MyString= oSimpleDateFormat.format(cal.getTime());
EditText oEditText =(EditText) findViewById(R.id.MyEdit);
oEditText.setText(MyString);
try this

You should use ScheduledThreadPoolExecutor.scheduleWithFixedDelay(Runnable command, long initialDelay, long delay, TimeUnit unit)
http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ScheduledThreadPoolExecutor.html

use the digital clock tag Digital Clock built in android studio 2.1.
Here it is built in tag to show time
< Digital Clock > don't use space b/w digital and clock, it was having problem while posting the answer.