日期选择器

<TextView
    android:textColor="#FFF41414"
    android:id="@+id/edit_register_data"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:ems="15"
    android:layout_margin="20dp"
    android:text="2018-11-14"    />

获取控件

textView.setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {
        new DatePickerDialog(MainActivity.this, new DatePickerDialog.OnDateSetListener() {
            @Override
            public void onDateSet(DatePicker view, int year, int monthOfYear, int dayOfMonth) {
                textView.setText(String.format("%d-%d-%d", year, monthOfYear + 1, dayOfMonth));
            }
        }, 2000, 1, 2).show();
    }
});