Android Open Source - android_device Screen Utils

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The source code is released under:

[Apache License](http://www.apache.org/licenses/): Version 2.0, January 2004 =============== ## TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION ## ### 1. Definitions. ### "License" sha...

Java Source Code

/*
 * =================================================================================================
 *                    Copyright (C) 2014 Martin Albedinsky [Wolf-ITechnologies]
 * =================================================================================================
 *         Licensed under the Apache License, Version 2.0 or later (further "License" only).
 * -------------------------------------------------------------------------------------------------
 * You may use this file only in compliance with the License. More details and copy of this License 
 * you may obtain at/* w w w.  ja va2  s .c  o  m*/
 * 
 *     http://www.apache.org/licenses/LICENSE-2.0
 * 
 * You can redistribute, modify or publish any part of the code written within this file but as it 
 * is described in the License, the software distributed under the License is distributed on an 
 * "AS IS" BASIS, WITHOUT WARRANTIES or CONDITIONS OF ANY KIND.
 * 
 * See the License for the specific language governing permissions and limitations under the License.
 * =================================================================================================
 */
package com.wit.android.device.util;

import android.app.Activity;
import android.content.Context;
import android.support.annotation.NonNull;
import android.view.View;
import android.view.inputmethod.InputMethodManager;

/**
 * <h3>Class Overview</h3>
 * todo: description
 *
 * @author Martin Albedinsky
 */
public class ScreenUtils {

  /**
   * Interface ===================================================================================
   */

  /**
   * Constants ===================================================================================
   */

  /**
   * Log TAG.
   */
  // private static final String TAG = "ScreenUtils";

  /**
   * Flag indicating whether the output trough log-cat is enabled or not.
   */
  // private static final boolean LOG_ENABLED = true;

  /**
   * Flag indicating whether the debug output trough log-cat is enabled or not.
   */
  // private static final boolean DEBUG_ENABLED = true;

  /**
   * Methods =====================================================================================
   */

  /**
   * Hides soft keyboard from the current window.
   * <p>
   * <b>Note</b>, that this will not work when you want to hide soft keyboard while a dialog is
   * visible, use {@link #hideSoftKeyboard(android.view.View)} instead.
   *
   * @param activity Current activity context to obtain the current focused view.
   * @return {@code True} if hiding was successful, {@code false} if a window of the given
   * activity does not have focused view at this time.
   */
  public static boolean hideSoftKeyboard(@NonNull Activity activity) {
    final View focusedView = activity.getWindow().getCurrentFocus();
    return focusedView != null && hideSoftKeyboard(focusedView);
  }

  /**
   * Hides soft keyboard from the current window using token of the given focused view.
   *
   * @param focusedView The view which has focus at this time.
   * @return {@code True} if hiding was successful, {@code false} if the view does not
   * have focus at this time.
   */
  public static boolean hideSoftKeyboard(@NonNull View focusedView) {
    if (focusedView.getContext() == null || !focusedView.hasFocus()) {
      return false;
    }
    // Get input method manager.
    final InputMethodManager imm = (InputMethodManager) focusedView.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
    // Now hide keyboard from window.
    return imm.hideSoftInputFromWindow(focusedView.getWindowToken(), InputMethodManager.RESULT_UNCHANGED_SHOWN);
  }

  /**
   * Shows soft keyboard on the current window.
   * <p>
   * <b>Note</b>, that this will not work when you want to show soft keyboard while a dialog is
   * visible, use {@link #showSoftKeyboard(android.view.View)} instead.
   *
   * @param activity Current activity context to obtain the current focused view.
   * @return {@code True} if showing was successful, {@code false} otherwise.
   */
  public static boolean showSoftKeyboard(@NonNull Activity activity) {
    final View view = activity.getWindow().getCurrentFocus();
    return view != null && showSoftKeyboard(view);
  }

  /**
   * Shows soft keyboard on the current window using token of the given focused view.
   *
   * @param focusedView The view which has focus at this time. If the view does not have focus,
   *                    focus for that view will be requested by {@link android.view.View#requestFocus()}.
   * @return {@code True} if showing was successful, {@code false} otherwise.
   */
  public static boolean showSoftKeyboard(@NonNull View focusedView) {
    if (focusedView.getContext() == null) {
      return false;
    }
    if (focusedView.hasFocus() || focusedView.requestFocus()) {
      // Get input method manager.
      final InputMethodManager imm = (InputMethodManager) focusedView.getContext().getSystemService(Context.INPUT_METHOD_SERVICE);
      // Now hide Keyboard from window.
      return imm.showSoftInput(focusedView, InputMethodManager.RESULT_UNCHANGED_SHOWN);
    }
    return false;
  }
}

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