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/*
* Copyright (C) 2019 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.keyguard.clock;
import android.content.Context;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import android.widget.FrameLayout;
import android.widget.ImageView;
import com.android.systemui.R;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.TimeZone;
/**
* Clock composed of two images that rotate with the time.
*
* The images are the clock hands. ImageClock expects two child ImageViews
* with ids hour_hand and minute_hand.
*/
public class ImageClock extends FrameLayout {
private ImageView mHourHand;
private ImageView mMinuteHand;
private final Calendar mTime = Calendar.getInstance(TimeZone.getDefault());
private String mDescFormat;
private TimeZone mTimeZone;
public ImageClock(Context context) {
this(context, null);
}
public ImageClock(Context context, AttributeSet attrs) {
this(context, attrs, 0);
}
public ImageClock(Context context, AttributeSet attrs, int defStyleAttr) {
super(context, attrs, defStyleAttr);
mDescFormat = ((SimpleDateFormat) DateFormat.getTimeFormat(context)).toLocalizedPattern();
}
/**
* Call when the time changes to update the rotation of the clock hands.
*/
public void onTimeChanged() {
mTime.setTimeInMillis(System.currentTimeMillis());
final float hourAngle = mTime.get(Calendar.HOUR) * 30f + mTime.get(Calendar.MINUTE) * 0.5f;
mHourHand.setRotation(hourAngle);
final float minuteAngle = mTime.get(Calendar.MINUTE) * 6f;
mMinuteHand.setRotation(minuteAngle);
setContentDescription(DateFormat.format(mDescFormat, mTime));
invalidate();
}
/**
* Call when the time zone has changed to update clock hands.
*
* @param timeZone The updated time zone that will be used.
*/
public void onTimeZoneChanged(TimeZone timeZone) {
mTimeZone = timeZone;
mTime.setTimeZone(timeZone);
}
/**
* Sets the colors to use on the clock face.
* @param dark Darker color obtained from color palette.
* @param light Lighter color obtained from color palette.
*/
public void setClockColors(int dark, int light) {
mHourHand.setColorFilter(dark);
mMinuteHand.setColorFilter(light);
}
@Override
protected void onFinishInflate() {
super.onFinishInflate();
mHourHand = findViewById(R.id.hour_hand);
mMinuteHand = findViewById(R.id.minute_hand);
}
@Override
protected void onAttachedToWindow() {
super.onAttachedToWindow();
mTime.setTimeZone(mTimeZone != null ? mTimeZone : TimeZone.getDefault());
onTimeChanged();
}
}
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