--- /dev/null
+/*
+ * Copyright (C) 2017 Tobias Brunner
+ * HSR Hochschule fuer Technik Rapperswil
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2 of the License, or (at your
+ * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ */
+
+package org.strongswan.android.ui.widget;
+
+import android.content.Context;
+import android.support.annotation.Nullable;
+import android.util.AttributeSet;
+import android.widget.Checkable;
+import android.widget.LinearLayout;
+
+public class CheckableLinearLayout extends LinearLayout implements Checkable
+{
+ private static final int[] CHECKED_STATE_SET = {android.R.attr.state_checked};
+ private boolean mChecked;
+
+ public CheckableLinearLayout(Context context, @Nullable AttributeSet attrs)
+ {
+ super(context, attrs);
+ }
+
+ @Override
+ public void setChecked(boolean checked)
+ {
+ if (mChecked != checked)
+ {
+ mChecked = checked;
+ refreshDrawableState();
+ }
+ }
+
+ @Override
+ public boolean isChecked()
+ {
+ return mChecked;
+ }
+
+ @Override
+ public void toggle()
+ {
+ setChecked(!mChecked);
+ }
+
+ @Override
+ protected int[] onCreateDrawableState(int extraSpace)
+ {
+ final int[] drawableState = super.onCreateDrawableState(extraSpace + 1);
+ if (isChecked())
+ {
+ mergeDrawableStates(drawableState, CHECKED_STATE_SET);
+ }
+ return drawableState;
+ }
+}