com/android/settingslib/widget/LinkTextView.java

/*
 * Copyright (C) 2017 The Android Open Source Project
 *
 * 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 com.android.settingslib.widget;

import android.content.Context;
import android.text.Spanned;
import android.text.method.LinkMovementMethod;
import android.text.style.ClickableSpan;
import android.util.AttributeSet;
import android.widget.TextView;

/**
 * Copied from setup wizard. This TextView performed two functions. The first is to make it so the
 * link behaves properly and becomes clickable. The second was that it made the link visible to
 * accessibility services, but from O forward support for links is provided natively.
 */
public class LinkTextView extends TextView {

    public LinkTextView(Context context) {
        this(context, null);
    }

    public LinkTextView(Context context, AttributeSet attrs) {
        super(context, attrs);
    }

    @Override
    public void setText(CharSequence text, BufferType type) {
        super.setText(text, type);
        if (text instanceof Spanned) {
            final ClickableSpan[] spans =
                    ((Spanned) text).getSpans(0, text.length(), ClickableSpan.class);
            if (spans.length > 0) {
                setMovementMethod(LinkMovementMethod.getInstance());
            }
        }
    }
}