Abstracted methods for the Android keyboard

app/src/main/java/org/schabi/newpipe/util/KeyboardUtil.java

@@ -0,0 +1,43 @@
+package org.schabi.newpipe.util;
+
+import android.app.Activity;
+import android.view.inputmethod.InputMethodManager;
+import android.widget.EditText;
+
+import androidx.core.content.ContextCompat;
+
+/**
+ * Utility class for the Android keyboard.
+ * <p>
+ * See also <a href="https://stackoverflow.com/q/1109022">https://stackoverflow.com/q/1109022</a>
+ * </p>
+ */
+public final class KeyboardUtil {
+    private KeyboardUtil() {
+    }
+
+    public static void showKeyboard(final Activity activity, final EditText editText) {
+        if (activity == null || editText == null) {
+            return;
+        }
+
+        if (editText.requestFocus()) {
+            final InputMethodManager imm = ContextCompat.getSystemService(activity,
+                    InputMethodManager.class);
+            imm.showSoftInput(editText, InputMethodManager.SHOW_FORCED);
+        }
+    }
+
+    public static void hideKeyboard(final Activity activity, final EditText editText) {
+        if (activity == null || editText == null) {
+            return;
+        }
+
+        final InputMethodManager imm = ContextCompat.getSystemService(activity,
+                InputMethodManager.class);
+        imm.hideSoftInputFromWindow(editText.getWindowToken(),
+                InputMethodManager.RESULT_UNCHANGED_SHOWN);
+
+        editText.clearFocus();
+    }
+}