Develop Reference

Change UI of Date Picker for Android TV app

I'm writing an android tv app with lean-back and I want to use android standard date picker and I want to make this like this pic
(eg: Made year part bigger when the user is selecting year and so on)
How can I achieve this?

You cannot use the standard date picker in Android TV apps because it was not designed for navigation using D-Pad. However, you can create your own widgets for day, month and year selection. You can simply use VerticalGridView to create them. For instance, you can do something similar to this for days:
<androidx.leanback.widget.VerticalGridView
android:id="#+id/vgv_days"
android:background="#color/transparent"
android:layout_marginEnd="10dp"
android:layout_width="40dp"
android:layout_height="35dp" />
customArrayObjectAdapterDays = new CustomArrayObjectAdapter(new DatePartPresenter(getContext()));
for (int i = 1; i < 31; i++) {
customArrayObjectAdapterDays.add(i);
}
vgvDays = (VerticalGridView) view.findViewById(R.id.vgv_days);
vgvDays.setNumColumns(1);
vgvDays.setAdapter(new ItemBridgeAdapter(customArrayObjectAdapterDays));
You also have to set the number of days (28, 29, 30, 31) depending on the year and selected month.

Removing AM/PM in Android Time picker Widget

Is there any way to remove the AM/PM in a Time Picker Widget?
I have this function in my application but its purpose is to select only Hour and Minutes not including AM/PM, I tried to setIs24HourView(true) but it makes the time 24hours, I only want 12 hours.

It seems there is no public method in TimePicker to directly hide or show the AM/PM chooser. However, a look at the source code will give us the name of the resource ID for that View, which we can get with the system Resources. Then it's simply a matter of finding the View, and setting its visibility to GONE.
private void hideAmPmLayout(TimePicker picker) {
final int id = Resources.getSystem().getIdentifier("ampm_layout", "id", "android");
final View amPmLayout = picker.findViewById(id);
if(amPmLayout != null) {
amPmLayout.setVisibility(View.GONE);
}
}

Getting Memory Out For using color picker

I am getting Memory out error in Bitmap for one of my Play Store Apps. In this app I used color Picker for choosing color by User. And that gives me the error.
My used color Picker is:
https://github.com/chiralcode/Android-Color-Picker
Its normally take 6 to 7 MB memory.
Now I can't solve this problem. Is there any better Color Picker?
Thanks in advance.

If you're looking for a great new android color picker that use material design I have forked an great project from github and made a simple-to-use android color picker dialog.
This is the project: Android Color Picker
HOW TO USE IT
Adding the library to your project
The aar artifact is available at the jcenter repository. Declare the repository and the
dependency in your build.gradle.
(root)
repositories {
jcenter()
}
(module)
dependencies {
compile 'com.pes.materialcolorpicker:library:1.0.1'
}
Use the library
Create a color picker dialog object
final ColorPicker cp = new ColorPicker(MainActivity.this, defaultColorR, defaultColorG, defaultColorB);
defaultColorR, defaultColorG, defaultColorB are 3 integer ( value 0-255) for the initialization of the color picker with your custom color value. If you don't want to start with a color set them to 0 or use only the first argument
Then show the dialog (when & where you want) and save the selected color
/* Show color picker dialog */
cp.show();
/* On Click listener for the dialog, when the user select the color */
Button okColor = (Button)cp.findViewById(R.id.okColorButton);
okColor.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
/* You can get single channel (value 0-255) */
selectedColorR = cp.getRed();
selectedColorG = cp.getGreen();
selectedColorB = cp.getBlue();
/* Or the android RGB Color (see the android Color class reference) */
selectedColorRGB = cp.getColor();
cp.dismiss();
}
});
That's all :)

Able to choose future date when setting max date in datepicker

I'm targeting for and building with API level 21, using AppCompat v21.
It gives me a nicely looking new date picker, which has the unexpected property of allowing me to choose a future date when max date has been set using
datePicker.setMaxDate(Calendar.getInstance().getTimeInMillis())
The future dates are greyed out, but I can still choose any one of them. Is that a bug? Am I doing it wrong? Is there a way to prevent the user from being able to pick a future date in the date picker?
The old Holo date picker did not allow picking a future date when setting a maximum date.
UPDATE:
While it is not working properly on my Nexus 4 running stock 5.0, it is working properly on my Nexus 6 running stock Android 5.1.1. Perhaps it was a bug in Android 5.0 and it was fixed in 5.1? Can anyone confirm?

So to answer my own question:
I've looked at the Android source of DatePickerCalendarDelegate.java at grepcode, specifically at public void setMaxDate(long maxDate) for both Android versions 5.0 and 5.1.
What's new in 5.1 in setMaxDate() is that
mDayPickerView.goTo(getSelectedDay(), false, true, true);
has been changed to:
mDayPickerView.setMaxDate(maxDate);
It seems they fixed it there, which corresponds with my observation that it works as expected in 5.1 but not in 5.0.
And so it seems we're stuck with dealing with the fact that it doesn't work properly in Android 5.0 (days after max date are greyed out but can still be chosen).

I am using this and its working correctly
Call this function to open date picker
public void openDatePicker() {
DatePickerDialog dpd = new DatePickerDialog(this, mDateSetListener, mYear, mMonth, mDay);
dpd.getDatePicker().setMaxDate(System.currentTimeMillis());
dpd.show();
}
Here is the mDateSetListener
private DatePickerDialog.OnDateSetListener mDateSetListener = new DatePickerDialog.OnDateSetListener() {
#Override
public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
mYear = year;
mMonth = monthOfYear;
mDay = dayOfMonth;
date.setText(dayOfMonth + " / " + (monthOfYear + 1) + " / " + year); // Here date is a TextView to display date
date.setVisibility(View.VISIBLE);
}
};

You can use a method in which u can pass the value of the date entered by the user and compare it for example to the current date , if it's a future date u can reset the value of date used to a specific one (for example the current date) and show a toast to inform him.

you can work around it on your CSS by finding the right element (with a "disabled" class) and setting a pointer events to none.`
.bs-datepicker-body table td.disabled {
pointer-events: none;
}

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.