[MaterialDatePicker] Hide the keyboard when switching to calendar mode

Resolves #2688
Resolves #2687

GIT_ORIGIN_REV_ID=686526aa049eadb08ded72ca9eb0b60027358756
PiperOrigin-RevId: 447819486

Author: pubiqq

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

@@ -24,13 +24,15 @@
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.AdapterView;
+import android.widget.EditText;
 import androidx.annotation.NonNull;
 import androidx.annotation.Nullable;
 import androidx.annotation.RestrictTo;
 import androidx.annotation.RestrictTo.Scope;
 import androidx.annotation.StringRes;
 import androidx.annotation.StyleRes;
 import androidx.core.util.Pair;
+import com.google.android.material.internal.ViewUtils;
 import java.util.Collection;
 
 /**
@@ -101,4 +103,26 @@ View onCreateTextInputView(
       @Nullable Bundle bundle,
       @NonNull CalendarConstraints constraints,
       @NonNull OnSelectionChangedListener<S> listener);
+
+  static void showKeyboardWithAutoHideBehavior(@NonNull EditText... editTexts) {
+    if (editTexts.length == 0) {
+      return;
+    }
+
+    View.OnFocusChangeListener listener =
+        (view, hasFocus) -> {
+          for (EditText editText : editTexts) {
+            if (editText.hasFocus()) {
+              return;
+            }
+          }
+          ViewUtils.hideKeyboard(view);
+        };
+
+    for (EditText editText : editTexts) {
+      editText.setOnFocusChangeListener(listener);
+    }
+
+    ViewUtils.requestFocusAndShowKeyboard(editTexts[0]);
+  }
 }

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

@@ -35,7 +35,6 @@
 import androidx.core.util.Pair;
 import androidx.core.util.Preconditions;
 import com.google.android.material.internal.ManufacturerUtils;
-import com.google.android.material.internal.ViewUtils;
 import com.google.android.material.resources.MaterialAttributes;
 import com.google.android.material.textfield.TextInputLayout;
 import java.text.SimpleDateFormat;
@@ -232,7 +231,7 @@ void onInvalidDate() {
           }
         });
 
-    ViewUtils.requestFocusAndShowKeyboard(startEditText);
+    DateSelector.showKeyboardWithAutoHideBehavior(startEditText, endEditText);
 
     return root;
   }

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

@@ -33,7 +33,6 @@
 import androidx.annotation.RestrictTo.Scope;
 import androidx.core.util.Pair;
 import com.google.android.material.internal.ManufacturerUtils;
-import com.google.android.material.internal.ViewUtils;
 import com.google.android.material.resources.MaterialAttributes;
 import com.google.android.material.textfield.TextInputLayout;
 import java.text.SimpleDateFormat;
@@ -133,7 +132,7 @@ void onInvalidDate() {
           }
         });
 
-    ViewUtils.requestFocusAndShowKeyboard(dateEditText);
+    DateSelector.showKeyboardWithAutoHideBehavior(dateEditText);
 
     return root;
   }

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

@@ -19,6 +19,7 @@
 import com.google.android.material.R;
 
 import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP;
+import static androidx.core.content.ContextCompat.getSystemService;
 
 import android.content.Context;
 import android.content.res.Resources;
@@ -97,6 +98,13 @@ public void run() {
         });
   }
 
+  public static void hideKeyboard(@NonNull final View view) {
+    InputMethodManager imm = getSystemService(view.getContext(), InputMethodManager.class);
+    if (imm != null) {
+      imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
+    }
+  }
+
   /**
    * Wrapper around {@link androidx.core.view.OnApplyWindowInsetsListener} which also passes the
    * initial padding set on the view. Used with {@link #doOnApplyWindowInsets(View,

lib/java/com/google/android/material/timepicker/TimePickerTextInputPresenter.java

@@ -19,7 +19,6 @@
 import com.google.android.material.R;
 
 import static android.view.View.GONE;
-import static androidx.core.content.ContextCompat.getSystemService;
 import static com.google.android.material.timepicker.TimeFormat.CLOCK_12H;
 import static java.util.Calendar.AM;
 import static java.util.Calendar.HOUR;
@@ -38,7 +37,6 @@
 import android.text.TextWatcher;
 import android.view.View;
 import android.view.View.OnClickListener;
-import android.view.inputmethod.InputMethodManager;
 import android.widget.EditText;
 import android.widget.LinearLayout;
 import android.widget.TextView;
@@ -48,6 +46,7 @@
 import com.google.android.material.button.MaterialButtonToggleGroup.OnButtonCheckedListener;
 import com.google.android.material.color.MaterialColors;
 import com.google.android.material.internal.TextWatcherAdapter;
+import com.google.android.material.internal.ViewUtils;
 import com.google.android.material.timepicker.TimePickerView.OnSelectionChange;
 import java.lang.reflect.Field;
 import java.util.Locale;
@@ -236,16 +235,10 @@ public void show() {
   @Override
   public void hide() {
     View currentFocus = timePickerView.getFocusedChild();
-    // Hide keyboard in case it was showing.
-    if (currentFocus == null) {
-      timePickerView.setVisibility(GONE);
-      return;
-    }
-    Context context = timePickerView.getContext();
-    InputMethodManager imm = getSystemService(context, InputMethodManager.class);
-    if (imm != null) {
-      imm.hideSoftInputFromWindow(currentFocus.getWindowToken(), 0);
+    if (currentFocus != null) {
+      ViewUtils.hideKeyboard(currentFocus);
     }
+
     timePickerView.setVisibility(GONE);
   }