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/*
* Copyright (C) 2020 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;
import android.annotation.FloatRange;
import android.annotation.IntRange;
import android.content.Context;
import android.content.res.TypedArray;
import android.graphics.Canvas;
import android.icu.text.DateTimePatternGenerator;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import android.widget.TextView;
import com.android.systemui.R;
import java.util.Calendar;
import java.util.TimeZone;
import kotlin.Unit;
/**
* Displays the time with the hour positioned above the minutes. (ie: 09 above 30 is 9:30)
* The time's text color is a gradient that changes its colors based on its controller.
*/
public class AnimatableClockView extends TextView {
private static final CharSequence FORMAT_12_HOUR = "h\nmm";
private static final CharSequence FORMAT_24_HOUR = "HH\nmm";
private static final long ANIM_DURATION = 300;
private final Calendar mTime = Calendar.getInstance();
private CharSequence mFormat;
private CharSequence mDescFormat;
private int[] mDozingColors;
private int[] mLockScreenColors;
private final int mDozingWeight;
private final int mLockScreenWeight;
private TextAnimator mTextAnimator = null;
private Runnable mOnTextAnimatorInitialized;
public AnimatableClockView(Context context) {
this(context, null, 0, 0);
}
public AnimatableClockView(Context context, AttributeSet attrs) {
this(context, attrs, 0, 0);
}
public AnimatableClockView(Context context, AttributeSet attrs, int defStyleAttr) {
this(context, attrs, defStyleAttr, 0);
}
public AnimatableClockView(Context context, AttributeSet attrs, int defStyleAttr,
int defStyleRes) {
super(context, attrs, defStyleAttr, defStyleRes);
TypedArray ta = context.obtainStyledAttributes(
attrs, R.styleable.AnimatableClockView, defStyleAttr, defStyleRes);
try {
mDozingWeight = ta.getInt(R.styleable.AnimatableClockView_dozeWeight, 100);
mLockScreenWeight = ta.getInt(R.styleable.AnimatableClockView_lockScreenWeight, 300);
} finally {
ta.recycle();
}
refreshFormat();
}
@Override
public void onAttachedToWindow() {
super.onAttachedToWindow();
refreshFormat();
}
@Override
public void onDetachedFromWindow() {
super.onDetachedFromWindow();
}
void refreshTime() {
mTime.setTimeInMillis(System.currentTimeMillis());
setText(DateFormat.format(mFormat, mTime));
setContentDescription(DateFormat.format(mDescFormat, mTime));
}
void onTimeZoneChanged(TimeZone timeZone) {
mTime.setTimeZone(timeZone);
refreshFormat();
}
@Override
protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
super.onMeasure(widthMeasureSpec, heightMeasureSpec);
if (mTextAnimator == null) {
mTextAnimator = new TextAnimator(
getLayout(),
() -> {
invalidate();
return Unit.INSTANCE;
},
2 /* number of lines (each can have a unique Paint) */);
if (mOnTextAnimatorInitialized != null) {
mOnTextAnimatorInitialized.run();
mOnTextAnimatorInitialized = null;
}
} else {
mTextAnimator.updateLayout(getLayout());
}
}
@Override
protected void onDraw(Canvas canvas) {
mTextAnimator.draw(canvas);
}
void setColors(int[] dozingColors, int[] lockScreenColors) {
mDozingColors = dozingColors;
mLockScreenColors = lockScreenColors;
}
void animateDoze(boolean isDozing, boolean animate) {
setTextStyle(isDozing ? mDozingWeight : mLockScreenWeight /* weight */,
-1,
isDozing ? mDozingColors : mLockScreenColors,
animate);
}
/**
* Set text style with an optional animation.
*
* By passing -1 to weight, the view preserves its current weight.
* By passing -1 to textSize, the view preserves its current text size.
*
* @param weight text weight.
* @param textSize font size.
* @param animate true to animate the text style change, otherwise false.
*/
private void setTextStyle(
@IntRange(from = 0, to = 1000) int weight,
@FloatRange(from = 0) float textSize,
int[] colors,
boolean animate) {
if (mTextAnimator != null) {
mTextAnimator.setTextStyle(weight, textSize, colors, animate, ANIM_DURATION, null);
} else {
// when the text animator is set, update its start values
mOnTextAnimatorInitialized =
() -> mTextAnimator.setTextStyle(
weight, textSize, colors, false, ANIM_DURATION, null);
}
}
void refreshFormat() {
final boolean use24HourFormat = DateFormat.is24HourFormat(getContext());
mFormat = use24HourFormat ? FORMAT_24_HOUR : FORMAT_12_HOUR;
mDescFormat = getBestDateTimePattern(getContext(), use24HourFormat ? "Hm" : "hm");
refreshTime();
}
private static String getBestDateTimePattern(Context context, String skeleton) {
DateTimePatternGenerator dtpg = DateTimePatternGenerator.getInstance(
context.getResources().getConfiguration().locale);
return dtpg.getBestPattern(skeleton);
}
}
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