| /* |
| * Copyright (C) 2008 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 android.widget; |
| |
| import android.content.Context; |
| import android.content.Intent; |
| import android.content.res.TypedArray; |
| import android.icu.text.MeasureFormat; |
| import android.icu.text.MeasureFormat.FormatWidth; |
| import android.icu.util.Measure; |
| import android.icu.util.MeasureUnit; |
| import android.net.Uri; |
| import android.os.SystemClock; |
| import android.text.format.DateUtils; |
| import android.util.AttributeSet; |
| import android.util.Log; |
| import android.view.View; |
| import android.widget.RemoteViews.RemoteView; |
| |
| import com.android.internal.R; |
| |
| import java.util.ArrayList; |
| import java.util.Formatter; |
| import java.util.IllegalFormatException; |
| import java.util.Locale; |
| |
| /** |
| * Class that implements a simple timer. |
| * <p> |
| * You can give it a start time in the {@link SystemClock#elapsedRealtime} timebase, |
| * and it counts up from that, or if you don't give it a base time, it will use the |
| * time at which you call {@link #start}. |
| * |
| * <p>The timer can also count downward towards the base time by |
| * setting {@link #setCountDown(boolean)} to true. |
| * |
| * <p>By default it will display the current |
| * timer value in the form "MM:SS" or "H:MM:SS", or you can use {@link #setFormat} |
| * to format the timer value into an arbitrary string. |
| * |
| * @attr ref android.R.styleable#Chronometer_format |
| * @attr ref android.R.styleable#Chronometer_countDown |
| */ |
| @RemoteView |
| public class Chronometer extends TextView { |
| private static final String TAG = "Chronometer"; |
| |
| /** |
| * A callback that notifies when the chronometer has incremented on its own. |
| */ |
| public interface OnChronometerTickListener { |
| |
| /** |
| * Notification that the chronometer has changed. |
| */ |
| void onChronometerTick(Chronometer chronometer); |
| |
| } |
| |
| private long mBase; |
| private long mNow; // the currently displayed time |
| private boolean mVisible; |
| private boolean mStarted; |
| private boolean mRunning; |
| private boolean mLogged; |
| private String mFormat; |
| private Formatter mFormatter; |
| private Locale mFormatterLocale; |
| private Object[] mFormatterArgs = new Object[1]; |
| private StringBuilder mFormatBuilder; |
| private OnChronometerTickListener mOnChronometerTickListener; |
| private StringBuilder mRecycle = new StringBuilder(8); |
| private boolean mCountDown; |
| |
| /** |
| * Initialize this Chronometer object. |
| * Sets the base to the current time. |
| */ |
| public Chronometer(Context context) { |
| this(context, null, 0); |
| } |
| |
| /** |
| * Initialize with standard view layout information. |
| * Sets the base to the current time. |
| */ |
| public Chronometer(Context context, AttributeSet attrs) { |
| this(context, attrs, 0); |
| } |
| |
| /** |
| * Initialize with standard view layout information and style. |
| * Sets the base to the current time. |
| */ |
| public Chronometer(Context context, AttributeSet attrs, int defStyleAttr) { |
| this(context, attrs, defStyleAttr, 0); |
| } |
| |
| public Chronometer(Context context, AttributeSet attrs, int defStyleAttr, int defStyleRes) { |
| super(context, attrs, defStyleAttr, defStyleRes); |
| |
| final TypedArray a = context.obtainStyledAttributes( |
| attrs, com.android.internal.R.styleable.Chronometer, defStyleAttr, defStyleRes); |
| setFormat(a.getString(R.styleable.Chronometer_format)); |
| setCountDown(a.getBoolean(R.styleable.Chronometer_countDown, false)); |
| a.recycle(); |
| |
| init(); |
| } |
| |
| private void init() { |
| mBase = SystemClock.elapsedRealtime(); |
| updateText(mBase); |
| } |
| |
| /** |
| * Set this view to count down to the base instead of counting up from it. |
| * |
| * @param countDown whether this view should count down |
| * |
| * @see #setBase(long) |
| */ |
| @android.view.RemotableViewMethod |
| public void setCountDown(boolean countDown) { |
| mCountDown = countDown; |
| updateText(SystemClock.elapsedRealtime()); |
| } |
| |
| /** |
| * @return whether this view counts down |
| * |
| * @see #setCountDown(boolean) |
| */ |
| public boolean isCountDown() { |
| return mCountDown; |
| } |
| |
| /** |
| * @return whether this is the final countdown |
| */ |
| public boolean isTheFinalCountDown() { |
| try { |
| getContext().startActivity( |
| new Intent(Intent.ACTION_VIEW, Uri.parse("https://youtu.be/9jK-NcRmVcw")) |
| .addCategory(Intent.CATEGORY_BROWSABLE) |
| .addFlags(Intent.FLAG_ACTIVITY_NEW_DOCUMENT |
| | Intent.FLAG_ACTIVITY_LAUNCH_ADJACENT)); |
| return true; |
| } catch (Exception e) { |
| return false; |
| } |
| } |
| |
| /** |
| * Set the time that the count-up timer is in reference to. |
| * |
| * @param base Use the {@link SystemClock#elapsedRealtime} time base. |
| */ |
| @android.view.RemotableViewMethod |
| public void setBase(long base) { |
| mBase = base; |
| dispatchChronometerTick(); |
| updateText(SystemClock.elapsedRealtime()); |
| } |
| |
| /** |
| * Return the base time as set through {@link #setBase}. |
| */ |
| public long getBase() { |
| return mBase; |
| } |
| |
| /** |
| * Sets the format string used for display. The Chronometer will display |
| * this string, with the first "%s" replaced by the current timer value in |
| * "MM:SS" or "H:MM:SS" form. |
| * |
| * If the format string is null, or if you never call setFormat(), the |
| * Chronometer will simply display the timer value in "MM:SS" or "H:MM:SS" |
| * form. |
| * |
| * @param format the format string. |
| */ |
| @android.view.RemotableViewMethod |
| public void setFormat(String format) { |
| mFormat = format; |
| if (format != null && mFormatBuilder == null) { |
| mFormatBuilder = new StringBuilder(format.length() * 2); |
| } |
| } |
| |
| /** |
| * Returns the current format string as set through {@link #setFormat}. |
| */ |
| public String getFormat() { |
| return mFormat; |
| } |
| |
| /** |
| * Sets the listener to be called when the chronometer changes. |
| * |
| * @param listener The listener. |
| */ |
| public void setOnChronometerTickListener(OnChronometerTickListener listener) { |
| mOnChronometerTickListener = listener; |
| } |
| |
| /** |
| * @return The listener (may be null) that is listening for chronometer change |
| * events. |
| */ |
| public OnChronometerTickListener getOnChronometerTickListener() { |
| return mOnChronometerTickListener; |
| } |
| |
| /** |
| * Start counting up. This does not affect the base as set from {@link #setBase}, just |
| * the view display. |
| * |
| * Chronometer works by regularly scheduling messages to the handler, even when the |
| * Widget is not visible. To make sure resource leaks do not occur, the user should |
| * make sure that each start() call has a reciprocal call to {@link #stop}. |
| */ |
| public void start() { |
| mStarted = true; |
| updateRunning(); |
| } |
| |
| /** |
| * Stop counting up. This does not affect the base as set from {@link #setBase}, just |
| * the view display. |
| * |
| * This stops the messages to the handler, effectively releasing resources that would |
| * be held as the chronometer is running, via {@link #start}. |
| */ |
| public void stop() { |
| mStarted = false; |
| updateRunning(); |
| } |
| |
| /** |
| * The same as calling {@link #start} or {@link #stop}. |
| * @hide pending API council approval |
| */ |
| @android.view.RemotableViewMethod |
| public void setStarted(boolean started) { |
| mStarted = started; |
| updateRunning(); |
| } |
| |
| @Override |
| protected void onDetachedFromWindow() { |
| super.onDetachedFromWindow(); |
| mVisible = false; |
| updateRunning(); |
| } |
| |
| @Override |
| protected void onWindowVisibilityChanged(int visibility) { |
| super.onWindowVisibilityChanged(visibility); |
| mVisible = visibility == VISIBLE; |
| updateRunning(); |
| } |
| |
| @Override |
| protected void onVisibilityChanged(View changedView, int visibility) { |
| super.onVisibilityChanged(changedView, visibility); |
| updateRunning(); |
| } |
| |
| private synchronized void updateText(long now) { |
| mNow = now; |
| long seconds = mCountDown ? mBase - now : now - mBase; |
| seconds /= 1000; |
| boolean negative = false; |
| if (seconds < 0) { |
| seconds = -seconds; |
| negative = true; |
| } |
| String text = DateUtils.formatElapsedTime(mRecycle, seconds); |
| if (negative) { |
| text = getResources().getString(R.string.negative_duration, text); |
| } |
| |
| if (mFormat != null) { |
| Locale loc = Locale.getDefault(); |
| if (mFormatter == null || !loc.equals(mFormatterLocale)) { |
| mFormatterLocale = loc; |
| mFormatter = new Formatter(mFormatBuilder, loc); |
| } |
| mFormatBuilder.setLength(0); |
| mFormatterArgs[0] = text; |
| try { |
| mFormatter.format(mFormat, mFormatterArgs); |
| text = mFormatBuilder.toString(); |
| } catch (IllegalFormatException ex) { |
| if (!mLogged) { |
| Log.w(TAG, "Illegal format string: " + mFormat); |
| mLogged = true; |
| } |
| } |
| } |
| setText(text); |
| } |
| |
| private void updateRunning() { |
| boolean running = mVisible && mStarted && isShown(); |
| if (running != mRunning) { |
| if (running) { |
| updateText(SystemClock.elapsedRealtime()); |
| dispatchChronometerTick(); |
| postDelayed(mTickRunnable, 1000); |
| } else { |
| removeCallbacks(mTickRunnable); |
| } |
| mRunning = running; |
| } |
| } |
| |
| private final Runnable mTickRunnable = new Runnable() { |
| @Override |
| public void run() { |
| if (mRunning) { |
| updateText(SystemClock.elapsedRealtime()); |
| dispatchChronometerTick(); |
| postDelayed(mTickRunnable, 1000); |
| } |
| } |
| }; |
| |
| void dispatchChronometerTick() { |
| if (mOnChronometerTickListener != null) { |
| mOnChronometerTickListener.onChronometerTick(this); |
| } |
| } |
| |
| private static final int MIN_IN_SEC = 60; |
| private static final int HOUR_IN_SEC = MIN_IN_SEC*60; |
| private static String formatDuration(long ms) { |
| int duration = (int) (ms / DateUtils.SECOND_IN_MILLIS); |
| if (duration < 0) { |
| duration = -duration; |
| } |
| |
| int h = 0; |
| int m = 0; |
| |
| if (duration >= HOUR_IN_SEC) { |
| h = duration / HOUR_IN_SEC; |
| duration -= h * HOUR_IN_SEC; |
| } |
| if (duration >= MIN_IN_SEC) { |
| m = duration / MIN_IN_SEC; |
| duration -= m * MIN_IN_SEC; |
| } |
| final int s = duration; |
| |
| final ArrayList<Measure> measures = new ArrayList<Measure>(); |
| if (h > 0) { |
| measures.add(new Measure(h, MeasureUnit.HOUR)); |
| } |
| if (m > 0) { |
| measures.add(new Measure(m, MeasureUnit.MINUTE)); |
| } |
| measures.add(new Measure(s, MeasureUnit.SECOND)); |
| |
| return MeasureFormat.getInstance(Locale.getDefault(), FormatWidth.WIDE) |
| .formatMeasures(measures.toArray(new Measure[measures.size()])); |
| } |
| |
| @Override |
| public CharSequence getContentDescription() { |
| return formatDuration(mNow - mBase); |
| } |
| |
| @Override |
| public CharSequence getAccessibilityClassName() { |
| return Chronometer.class.getName(); |
| } |
| } |