1/*
2 * Copyright (C) 2014 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License
15 */
16
17package com.android.systemui.statusbar.phone;
18
19import android.content.Context;
20import android.text.TextUtils;
21import android.util.AttributeSet;
22import android.view.View;
23import android.widget.TextView;
24
25/**
26 * A view to show hints on Keyguard ("Swipe up to unlock", "Tap again to open").
27 */
28public class KeyguardIndicationTextView extends TextView {
29
30    public KeyguardIndicationTextView(Context context) {
31        super(context);
32    }
33
34    public KeyguardIndicationTextView(Context context, AttributeSet attrs) {
35        super(context, attrs);
36    }
37
38    public KeyguardIndicationTextView(Context context, AttributeSet attrs, int defStyleAttr) {
39        super(context, attrs, defStyleAttr);
40    }
41
42    public KeyguardIndicationTextView(Context context, AttributeSet attrs, int defStyleAttr,
43            int defStyleRes) {
44        super(context, attrs, defStyleAttr, defStyleRes);
45    }
46
47    /**
48     * Changes the text with an animation and makes sure a single indication is shown long enough.
49     *
50     * @param text The text to show.
51     */
52    public void switchIndication(CharSequence text) {
53
54        // TODO: Animation, make sure that we will show one indication long enough.
55        if (TextUtils.isEmpty(text)) {
56            setVisibility(View.INVISIBLE);
57        } else {
58            setVisibility(View.VISIBLE);
59            setText(text);
60        }
61    }
62
63    /**
64     * See {@link #switchIndication}.
65     */
66    public void switchIndication(int textResId) {
67        switchIndication(getResources().getText(textResId));
68    }
69}
70