DatePickerDialog Box

Android Date Time picker are used a lot in android apps.

Android Button Click And Open DatePickerDialog Box

In your build.gradle add latest appcompat library, at the time 24.2.1

dependencies {  
    compile 'com.android.support:appcompat-v7:X.X.X' 
    // where X.X.X version
}

1. activity_main.xml

• Set On TextView Click Listener 

• <TextView    android:id="@+id/tvDate"    android:layout_width="match_parent"    android:layout_height="44dp"    android:layout_alignParentStart="true"    android:layout_alignParentLeft="true"    android:layout_alignParentTop="true"    android:layout_marginStart="0dp"    android:layout_marginLeft="0dp"    android:layout_marginTop="38dp"    android:text="DD-MM-YYYYY"    android:textSize="24sp" />

• After Select the date and and set the textview

==>MainActivity.java

• Find the id of TextView and and store TextView Object

• TextView tvDate = findViewById(R.id.tvDate);

1. tvDate.setOnClickListener(new View.OnClickListener() {
2. int mYear,mMonth,mDay,mHour,mMinute;
3. @Override    public void onClick(View view) {
4.         Calendar cal = Calendar.getInstance();
5.         mYear = cal.get(Calendar.YEAR);
6.         mMonth = cal.get(Calendar.MONTH);
7.         mDay = cal.get(Calendar.DAY_OF_MONTH);
8.         DatePickerDialog dpd = new DatePickerDialog(context, new DatePickerDialog.OnDateSetListener() {
9.             @Override            public void onDateSet(DatePicker datePicker, int year, int month, int day) {
10.                 Toast.makeText(getApplicationContext(), "tv Date -> " + 39, Toast.LENGTH_SHORT).show();
11.                 tvDate.setText(day + "-" + (month +1)+ "-"+year);
12.             }
13.         },mYear,mMonth,mDay);
14.         dpd.show();
15.     }
16. });