Made LG devices exceptions for using date type of keyboard for date picker text input.

Resolves #901

- Check if the device is LG, and change the keyboard type if yes.
- Remove the exception for Samsung devices, they updated their date type keyboard with "." and "/".

PiperOrigin-RevId: 290753487

Author: pekingme

lib/java/com/google/android/material/datepicker/RangeDateSelector.java

@@ -180,8 +180,8 @@ public View onCreateTextInputView(
     final TextInputLayout endTextInput = root.findViewById(R.id.mtrl_picker_text_input_range_end);
     EditText startEditText = startTextInput.getEditText();
     EditText endEditText = endTextInput.getEditText();
-    // The date inputType for Samsung does not include any separator characters
-    if (ManufacturerUtils.isSamsungDevice()) {
+    // The date inputType for LG does not include any separator characters
+    if (ManufacturerUtils.isLGDevice()) {
       // Using the URI variation places the '/' and '.' in more prominent positions
       startEditText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_URI);
       endEditText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_URI);

lib/java/com/google/android/material/datepicker/SingleDateSelector.java

@@ -102,8 +102,8 @@ public View onCreateTextInputView(
 
     TextInputLayout dateTextInput = root.findViewById(R.id.mtrl_picker_text_input_date);
     EditText dateEditText = dateTextInput.getEditText();
-    // The date inputType for Samsung does not include any separator characters
-    if (ManufacturerUtils.isSamsungDevice()) {
+    // The date inputType for LG does not include any separator characters
+    if (ManufacturerUtils.isLGDevice()) {
       // Using the URI variation places the '/' and '.' in more prominent positions
       dateEditText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_VARIATION_URI);
     }

lib/java/com/google/android/material/internal/ManufacturerUtils.java

@@ -27,13 +27,13 @@ public class ManufacturerUtils {
 
   private ManufacturerUtils() {}
 
-  /** Returns true if the device manufacturer is Samsung. */
-  public static boolean isSamsungDevice() {
-    return Build.MANUFACTURER.equalsIgnoreCase("samsung");
-  }
-
   /** Returns true if the device manufacturer is Meizu. */
   public static boolean isMeizuDevice() {
     return Build.MANUFACTURER.equalsIgnoreCase("meizu");
   }
+
+  /** Returns true if the device manufacturer is LG. */
+  public static boolean isLGDevice() {
+    return Build.MANUFACTURER.equalsIgnoreCase("lg");
+  }
 }