Add RadioButtonPreference

/*

 * Copyright (C) 2017 microG Project Team

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

package org.microg.tools.ui;

import android.content.Context;

import android.support.v4.content.res.TypedArrayUtils;

import android.support.v7.preference.CheckBoxPreference;

import android.util.AttributeSet;

public class RadioButtonPreference extends CheckBoxPreference {

    public RadioButtonPreference(Context context, AttributeSet attrs, int defStyleAttr) {

        this(context, attrs, defStyleAttr, 0);

    }

    public RadioButtonPreference(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) {

        super(context, attrs, defStyleAttr, defStyleRes);

        setWidgetLayoutResource(R.layout.preference_widget_radiobutton);

    }

    public RadioButtonPreference(Context context, AttributeSet attrs) {

        this(context, attrs, TypedArrayUtils.getAttr(context, R.attr.checkBoxPreferenceStyle,

                android.R.attr.checkBoxPreferenceStyle));

    }

    public RadioButtonPreference(Context context) {

        this(context, null);

    }

}

<?xml version="1.0" encoding="utf-8"?>

<!--

  ~ Copyright (C) 2017 microG Project Team

  ~

  ~ Licensed under the Apache License, Version 2.0 (the "License");

  ~ you may not use this file except in compliance with the License.

  ~ You may obtain a copy of the License at

  ~

  ~     http://www.apache.org/licenses/LICENSE-2.0

  ~

  ~ Unless required by applicable law or agreed to in writing, software

  ~ distributed under the License is distributed on an "AS IS" BASIS,

  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

  ~ See the License for the specific language governing permissions and

  ~ limitations under the License.

  -->

<RadioButton android:id="@android:id/checkbox"

             xmlns:android="http://schemas.android.com/apk/res/android"

             android:layout_width="wrap_content"

             android:layout_height="wrap_content"

             android:layout_gravity="center"

             android:clickable="false"

             android:focusable="false"/>

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