KeyguardStatusView.java revision 5ecd81154fa039961f65bb4e36d18ac555b0d1d6 
1/*
2 * Copyright (C) 2012 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.keyguard;
18
19import android.content.Context;
20import android.content.res.Resources;
21import android.graphics.Typeface;
22import android.text.TextUtils;
23import android.util.AttributeSet;
24import android.util.Slog;
25import android.view.View;
26import android.widget.GridLayout;
27import android.widget.TextView;
28
29import com.android.internal.widget.LockPatternUtils;
30
31import java.text.SimpleDateFormat;
32import java.util.Date;
33import java.util.Locale;
34
35import libcore.icu.ICU;
36
37public class KeyguardStatusView extends GridLayout {
38    private static final boolean DEBUG = KeyguardViewMediator.DEBUG;
39    private static final String TAG = "KeyguardStatusView";
40
41    public static final int LOCK_ICON = 0; // R.drawable.ic_lock_idle_lock;
42    public static final int ALARM_ICON = R.drawable.ic_lock_idle_alarm;
43    public static final int CHARGING_ICON = 0; //R.drawable.ic_lock_idle_charging;
44    public static final int BATTERY_LOW_ICON = 0; //R.drawable.ic_lock_idle_low_battery;
45
46    private SimpleDateFormat mDateFormat;
47    private LockPatternUtils mLockPatternUtils;
48
49    private TextView mDateView;
50    private TextView mAlarmStatusView;
51    private ClockView mClockView;
52
53    private KeyguardUpdateMonitorCallback mInfoCallback = new KeyguardUpdateMonitorCallback() {
54
55        @Override
56        public void onTimeChanged() {
57            refresh();
58        }
59
60        @Override
61        void onKeyguardVisibilityChanged(boolean showing) {
62            if (showing) {
63                if (DEBUG) Slog.v(TAG, "refresh statusview showing:" + showing);
64                refresh();
65            }
66        };
67    };
68
69    public KeyguardStatusView(Context context) {
70        this(context, null, 0);
71    }
72
73    public KeyguardStatusView(Context context, AttributeSet attrs) {
74        this(context, attrs, 0);
75    }
76
77    public KeyguardStatusView(Context context, AttributeSet attrs, int defStyle) {
78        super(context, attrs, defStyle);
79    }
80
81    @Override
82    protected void onFinishInflate() {
83        super.onFinishInflate();
84        Resources res = getContext().getResources();
85        final Locale locale = Locale.getDefault();
86        final String datePattern = res.getString(R.string.system_ui_date_pattern);
87        final String bestFormat = ICU.getBestDateTimePattern(datePattern, locale.toString());
88        mDateFormat = new SimpleDateFormat(bestFormat, locale);
89        mDateView = (TextView) findViewById(R.id.date);
90        mAlarmStatusView = (TextView) findViewById(R.id.alarm_status);
91        mClockView = (ClockView) findViewById(R.id.clock_view);
92        mLockPatternUtils = new LockPatternUtils(getContext());
93
94        // Use custom font in mDateView
95        mDateView.setTypeface(Typeface.SANS_SERIF, Typeface.BOLD);
96
97        // Required to get Marquee to work.
98        final View marqueeViews[] = { mDateView, mAlarmStatusView };
99        for (int i = 0; i < marqueeViews.length; i++) {
100            View v = marqueeViews[i];
101            if (v == null) {
102                throw new RuntimeException("Can't find widget at index " + i);
103            }
104            v.setSelected(true);
105        }
106        refresh();
107    }
108
109    protected void refresh() {
110        mClockView.updateTime();
111        refreshDate();
112        refreshAlarmStatus(); // might as well
113    }
114
115    void refreshAlarmStatus() {
116        // Update Alarm status
117        String nextAlarm = mLockPatternUtils.getNextAlarm();
118        if (!TextUtils.isEmpty(nextAlarm)) {
119            maybeSetUpperCaseText(mAlarmStatusView, nextAlarm);
120            mAlarmStatusView.setCompoundDrawablesWithIntrinsicBounds(ALARM_ICON, 0, 0, 0);
121            mAlarmStatusView.setVisibility(View.VISIBLE);
122        } else {
123            mAlarmStatusView.setVisibility(View.GONE);
124        }
125    }
126
127    void refreshDate() {
128        maybeSetUpperCaseText(mDateView, mDateFormat.format(new Date()));
129    }
130
131    @Override
132    protected void onAttachedToWindow() {
133        super.onAttachedToWindow();
134        KeyguardUpdateMonitor.getInstance(mContext).registerCallback(mInfoCallback);
135    }
136
137    @Override
138    protected void onDetachedFromWindow() {
139        super.onDetachedFromWindow();
140        KeyguardUpdateMonitor.getInstance(mContext).removeCallback(mInfoCallback);
141    }
142
143    public int getAppWidgetId() {
144        return LockPatternUtils.ID_DEFAULT_STATUS_WIDGET;
145    }
146
147    private void maybeSetUpperCaseText(TextView textView, CharSequence text) {
148        if (KeyguardViewManager.USE_UPPER_CASE) {
149            textView.setText(text != null ? text.toString().toUpperCase() : null);
150        } else {
151            textView.setText(text);
152        }
153    }
154}
155