blocks|key|2084805|text|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2084806|可以做到这一点吗？|blockquote|2084807|2084808|2084809|不怎么有意思。您可以传递一个显示十分之一秒的格式字符串，但Chronometer本身每秒才更新一次。更新频率包含在代码中。|offset|length|style|CODE|2084810|2084811|如果没有，有没有免费的(最好是开源的)库来做同样的事情？|2084812|2084813|2084814|该Chronometer+source在Apache+2.0下可用，因此您可以根据需要对其进行修改。找到所有出现的1000并将它们更改为100，您可能已经完成了大部分工作。|2084815|请记住，此Chronometer可以在活动中使用，但不能在应用程序小部件中使用，因为应用程序小部件框架不支持自定义的View类。|2084816|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/aosp-mirror/platform_frameworks_base/blob/android-cts-9.0_r4/core/java/android/widget/Chronometer.java^0|0|0|0|0|T|B|0|0|0|0|0|1|B|1L|4|1W|3|1|I|0|0|5|B|1M|4|0^^$0|@$1|2|3|-4|4|5|6|12|7|@]|8|@]|9|$]]|$1|A|3|B|4|C|6|13|7|@]|8|@]|9|$]]|$1|D|3|-4|4|5|6|14|7|@]|8|@]|9|$]]|$1|E|3|-4|4|5|6|15|7|@]|8|@]|9|$]]|$1|F|3|G|4|5|6|16|7|@$H|17|I|18|J|K]]|8|@]|9|$]]|$1|L|3|-4|4|5|6|19|7|@]|8|@]|9|$]]|$1|M|3|N|4|C|6|1A|7|@]|8|@]|9|$]]|$1|O|3|-4|4|5|6|1B|7|@]|8|@]|9|$]]|$1|P|3|-4|4|5|6|1C|7|@]|8|@]|9|$]]|$1|Q|3|R|4|5|6|1D|7|@$H|1E|I|1F|J|K]|$H|1G|I|1H|J|K]|$H|1I|I|1J|J|K]]|8|@$H|1K|I|1L|1|1M]]|9|$]]|$1|S|3|T|4|5|6|1N|7|@$H|1O|I|1P|J|K]|$H|1Q|I|1R|J|K]]|8|@]|9|$]]|$1|U|3|-4|4|5|6|1S|7|@]|8|@]|9|$]]]|V|$W|$4|X|Y|Z|9|$10|11]]]]

<blockquote>
 Is it possible to do this?
</blockquote>

Not really. You could pass a format string that shows tenths of a second, but the <code>Chronometer</code> itself only updates every second. The update frequency is baked into the code.

<blockquote>
 If not, is there a free (and
 preferably open source) library that
 does the same?
</blockquote>

The <a href="https://github.com/aosp-mirror/platform_frameworks_base/blob/android-cts-9.0_r4/core/java/android/widget/Chronometer.java" rel="nofollow noreferrer"><code>Chronometer</code> source</a> is available under the Apache License 2.0, so you can modify it to suit. Find all occurrences of <code>1000</code> and change them to <code>100</code>, and you're probably most of the way there.

Bear in mind that this <code>Chronometer</code> can be used in an activity but not an app widget, since customized <code>View</code> classes are not supported by the app widget framework.

blocks|key|561264|text|Android的默认时钟小部件不支持毫秒格式。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|561265|我已经修改了计时器小部件的源代码，以便显示毫秒。从github下载。|offset|length|561266|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/antoniom/Millisecond-Chronometer^0|0|P|6|0|0^^$0|@$1|2|3|4|5|6|7|N|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|O|8|@]|9|@$D|P|E|Q|1|R]]|A|$]]|$1|F|3|-4|5|6|7|S|8|@]|9|@]|A|$]]]|G|$H|$5|I|J|K|A|$L|M]]]]

Android's default chronometer widget does not support millisecond formatting. 

I have modified the Chronometer widget source code in order to show milliseconds. Download it from <a href="https://github.com/antoniom/Millisecond-Chronometer" rel="noreferrer">github</a>.

blocks|key|3492521|text|我创建了一个在Activity中构建的类的实例。这个新类是Android+CountDownTimer类的扩展(添加已实现的方法)|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3492522|在构造函数中，您可以添加以毫秒为单位的持续时间和为1/10秒的间隔，即100毫秒。在onTick方法中，命令在给定的持续时间内每1/100秒执行一次。这应该行得通。|3492523|entityMap^0|7|8|11|E|0|16|6|0^^$0|@$1|2|3|4|5|6|7|J|8|@$9|K|A|L|B|C]|$9|M|A|N|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|O|8|@$9|P|A|Q|B|C]]|D|@]|E|$]]|$1|H|3|-4|5|6|7|R|8|@]|D|@]|E|$]]]|I|$]]

I created an instance of a class that I built inside the <code>Activity</code>. This new class was an extension of the Android <code>CountDownTimer</code> class(add the implemented methods)

Here in the constructor you can add the duration in milliseconds and the interval to be 1/10 of a second, that is 100 milliseconds. In the <code>onTick</code> method, the commands are executed every 1/100th of a second for the given duration. That should work.

blocks|key|1308492|text|TimeCounter是一个做同样事情的库。当你暂停/继续你的秒表时，你不必担心时间的增加和减少。我相信这会让你开心的一天。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1308493|entityMap|0|LINK|mutability|MUTABLE|url|https://github.com/hissaan/TimeCounter^0|0|B|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

<a href="https://github.com/hissaan/TimeCounter" rel="nofollow noreferrer">TimeCounter</a> is a library that does exactly the same. You won't have to worry about adding and subtracting time when you pause/resume your stop-watch. I am sure this will make your day.

blocks|key|560044|text|package+ar.com.magiapensada.apps.dayoftheweek;

import+androidx.appcompat.app.AppCompatActivity;

import+android.content.BroadcastReceiver;
import+android.content.Context;
import+android.content.Intent;
import+android.content.IntentFilter;
import+android.os.Bundle;
import+android.view.View;
import+android.widget.Button;
import+android.widget.TextView;

public+class+MainActivity+extends+AppCompatActivity+{

++++public+static+final+int+NANOSECONDS_CONVERT+=+1000000000;
++++public+static+final+int+MICROSECONDS_CONVERT+=+1000;
++++public+static+final+int+SEXAGESIMA_CONVERT+=+60;
++++public+static+final+int+SEXAGESIMA_FORMAT_CONVERT+=+2;
++++public+static+final+String+BROADCAST_TIME_UPDATE+=+"BROADCAST_TIME_UPDATE";
++++private+Button+start;
++++private+TextView+tiempo;
++++private+long+inicio;
++++private+Long+terminado=null;
++++private+boolean+running=false;
++++private+Button+stop;

++++@Override
++++protected+void+onCreate(Bundle+savedInstanceState)+{
++++++++super.onCreate(savedInstanceState);
++++++++setContentView(R.layout.activity_main);

++++++++this.tiempo+=+(TextView)+findViewById(R.id.tiempo);

++++++++this.start+=+(Button)+findViewById(R.id.start);
++++++++this.stop+=+(Button)+findViewById(R.id.stop);

++++++++BroadcastReceiver+broadcastReceiver+=+new+BroadcastReceiver()+{

++++++++++++@Override
++++++++++++public+void+onReceive(Context+arg0,+Intent+intent)+{
++++++++++++++++String+action+=+intent.getAction();
++++++++++++++++if+(action.equals(BROADCAST_TIME_UPDATE))+{

++++++++++++++++++++if+(+terminado+!=+null){
++++++++++++++++++++++++String+cronometro+=+getCronometroValue(terminado);
++++++++++++++++++++++++tiempo.setText(cronometro);
++++++++++++++++++++++++terminado=null;
++++++++++++++++++++}else{
++++++++++++++++++++++++String+cronometro+=+getCronometroValue(System.nanoTime());
++++++++++++++++++++++++tiempo.setText(cronometro);

++++++++++++++++++++}
++++++++++++++++}


++++++++++++}
++++++++};
++++++++registerReceiver(broadcastReceiver,+new+IntentFilter(BROADCAST_TIME_UPDATE));





++++++++start.setOnClickListener(new+View.OnClickListener()+{
++++++++++++@Override
++++++++++++public+void+onClick(View+v)+{
++++++++++++++++MainActivity.this.inicio+=+System.nanoTime();
++++++++++++++++Thread+t+=+new+Thread(new+Runnable()+{
++++++++++++++++++++@Override
++++++++++++++++++++public+void+run()+{
++++++++++++++++++++++++running=true;
++++++++++++++++++++++++terminado=null;
++++++++++++++++++++++++while(running){
++++++++++++++++++++++++++++sendBroadcast();
++++++++++++++++++++++++}

++++++++++++++++++++++++sendBroadcast();

++++++++++++++++++++}
++++++++++++++++});
++++++++++++++++t.start();
++++++++++++}
++++++++});

++++++++stop.setOnClickListener(new+View.OnClickListener()+{
++++++++++++@Override
++++++++++++public+void+onClick(View+v)+{
++++++++++++++++terminado+=+System.nanoTime();
++++++++++++++++running=false;

++++++++++++}
++++++++});

++++}

++++private+void+sendBroadcast()+{
++++++++Intent+intent+=+new+Intent(BROADCAST_TIME_UPDATE);
++++++++MainActivity.this.sendBroadcast(intent);
++++}

++++private+String+getCronometroValue(long+actual)+{
++++++++long+dif+=+actual+-+MainActivity.this.inicio;

++++++++long+segundos+=+dif/+NANOSECONDS_CONVERT;
++++++++long+mili+=+dif+-+(segundos*NANOSECONDS_CONVERT);
++++++++mili+=+mili/+MICROSECONDS_CONVERT;


++++++++long+minutos+=+segundos+/+SEXAGESIMA_CONVERT;
+++++++++segundos+=+segundos+%25+SEXAGESIMA_CONVERT;

+++++++++String+segString+=+formatSexagesima(segundos);
++++++++String+minutosString+=+formatSexagesima(minutos);

++++++++String+cronometro+=++minutosString+%2B+":"+%2B+segString+%2B+":"+%2B+mili;
++++++++return+cronometro;
++++}

++++private+String+formatSexagesima(long+value+){
++++++++return+String.format("%250"+%2B+SEXAGESIMA_FORMAT_CONVERT+%2B+"d",+value);
++++}

}|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|560045|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>package ar.com.magiapensada.apps.dayoftheweek;

import androidx.appcompat.app.AppCompatActivity;

import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.TextView;

public class MainActivity extends AppCompatActivity {

 public static final int NANOSECONDS_CONVERT = 1000000000;
 public static final int MICROSECONDS_CONVERT = 1000;
 public static final int SEXAGESIMA_CONVERT = 60;
 public static final int SEXAGESIMA_FORMAT_CONVERT = 2;
 public static final String BROADCAST_TIME_UPDATE = &quot;BROADCAST_TIME_UPDATE&quot;;
 private Button start;
 private TextView tiempo;
 private long inicio;
 private Long terminado=null;
 private boolean running=false;
 private Button stop;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.activity_main);

 this.tiempo = (TextView) findViewById(R.id.tiempo);

 this.start = (Button) findViewById(R.id.start);
 this.stop = (Button) findViewById(R.id.stop);

 BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {

 @Override
 public void onReceive(Context arg0, Intent intent) {
 String action = intent.getAction();
 if (action.equals(BROADCAST_TIME_UPDATE)) {

 if ( terminado != null){
 String cronometro = getCronometroValue(terminado);
 tiempo.setText(cronometro);
 terminado=null;
 }else{
 String cronometro = getCronometroValue(System.nanoTime());
 tiempo.setText(cronometro);

 }
 }


 }
 };
 registerReceiver(broadcastReceiver, new IntentFilter(BROADCAST_TIME_UPDATE));





 start.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 MainActivity.this.inicio = System.nanoTime();
 Thread t = new Thread(new Runnable() {
 @Override
 public void run() {
 running=true;
 terminado=null;
 while(running){
 sendBroadcast();
 }

 sendBroadcast();

 }
 });
 t.start();
 }
 });

 stop.setOnClickListener(new View.OnClickListener() {
 @Override
 public void onClick(View v) {
 terminado = System.nanoTime();
 running=false;

 }
 });

 }

 private void sendBroadcast() {
 Intent intent = new Intent(BROADCAST_TIME_UPDATE);
 MainActivity.this.sendBroadcast(intent);
 }

 private String getCronometroValue(long actual) {
 long dif = actual - MainActivity.this.inicio;

 long segundos = dif/ NANOSECONDS_CONVERT;
 long mili = dif - (segundos*NANOSECONDS_CONVERT);
 mili = mili/ MICROSECONDS_CONVERT;


 long minutos = segundos / SEXAGESIMA_CONVERT;
 segundos = segundos % SEXAGESIMA_CONVERT;

 String segString = formatSexagesima(segundos);
 String minutosString = formatSexagesima(minutos);

 String cronometro = minutosString + &quot;:&quot; + segString + &quot;:&quot; + mili;
 return cronometro;
 }

 private String formatSexagesima(long value ){
 return String.format(&quot;%0&quot; + SEXAGESIMA_FORMAT_CONVERT + &quot;d&quot;, value);
 }

}
</code></pre>

blocks|key|2084916|text|<?xml+version="1.0"+encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout+xmlns:android="http://schemas.android.com/apk/res/android"
++++xmlns:app="http://schemas.android.com/apk/res-auto"
++++xmlns:tools="http://schemas.android.com/tools"
++++android:layout_width="match_parent"
++++android:layout_height="match_parent"
++++tools:context=".MainActivity">

++++<LinearLayout
++++++++android:layout_width="0dp"
++++++++android:layout_height="0dp"
++++++++android:orientation="vertical"
++++++++app:layout_constraintBottom_toBottomOf="parent"
++++++++app:layout_constraintEnd_toEndOf="parent"
++++++++app:layout_constraintStart_toStartOf="parent"
++++++++app:layout_constraintTop_toTopOf="parent">

++++++++<TextView
++++++++++++android:id="@%2Bid/tiempo"
++++++++++++android:layout_width="wrap_content"
++++++++++++android:layout_height="wrap_content"
++++++++++++android:textSize="20sp"+/>

++++++++<Button
++++++++++++android:id="@%2Bid/start"
++++++++++++android:layout_width="wrap_content"
++++++++++++android:layout_height="wrap_content"
++++++++++++android:text="Start"+/>

++++++++<Button
++++++++++++android:id="@%2Bid/stop"
++++++++++++android:layout_width="match_parent"
++++++++++++android:layout_height="wrap_content"
++++++++++++android:text="Stop"+/>


++++</LinearLayout>

</androidx.constraintlayout.widget.ConstraintLayout>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|2084917|unstyled|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|G|8|@]|9|@]|A|$B|C]]|$1|D|3|-4|5|E|7|H|8|@]|9|@]|A|$]]]|F|$]]

<pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
&lt;androidx.constraintlayout.widget.ConstraintLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
 xmlns:app=&quot;http://schemas.android.com/apk/res-auto&quot;
 xmlns:tools=&quot;http://schemas.android.com/tools&quot;
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;match_parent&quot;
 tools:context=&quot;.MainActivity&quot;&gt;

 &lt;LinearLayout
 android:layout_width=&quot;0dp&quot;
 android:layout_height=&quot;0dp&quot;
 android:orientation=&quot;vertical&quot;
 app:layout_constraintBottom_toBottomOf=&quot;parent&quot;
 app:layout_constraintEnd_toEndOf=&quot;parent&quot;
 app:layout_constraintStart_toStartOf=&quot;parent&quot;
 app:layout_constraintTop_toTopOf=&quot;parent&quot;&gt;

 &lt;TextView
 android:id=&quot;@+id/tiempo&quot;
 android:layout_width=&quot;wrap_content&quot;
 android:layout_height=&quot;wrap_content&quot;
 android:textSize=&quot;20sp&quot; /&gt;

 &lt;Button
 android:id=&quot;@+id/start&quot;
 android:layout_width=&quot;wrap_content&quot;
 android:layout_height=&quot;wrap_content&quot;
 android:text=&quot;Start&quot; /&gt;

 &lt;Button
 android:id=&quot;@+id/stop&quot;
 android:layout_width=&quot;match_parent&quot;
 android:layout_height=&quot;wrap_content&quot;
 android:text=&quot;Stop&quot; /&gt;


 &lt;/LinearLayout&gt;

&lt;/androidx.constraintlayout.widget.ConstraintLayout&gt;
</code></pre>

blocks|key|2084833|text|经过大量的研究，我找到了解决问题的方法。我不知道它是否有效，因为事实是Emulator在大约10秒后崩溃，但在电话上它运行得很好，这对我来说就足够了。它看起来像这样：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2084834|import+android.os.Handler;
public+class+Chronometer+extends+Activity+{
++private+Handler+mHandler+=+new+Handler();
public+void+actions()+{
++mHandler.removeCallbacks(mUpdateTimeTask);
++mHandler.postDelayed(mUpdateTimeTask,+1);+//1+is+the+number+of+milliseconds+you+want+the+text+to+be+updated
}
Runnable+mUpdateTimeTask+=+new+Runnable()+{
++public+void+run()+{
++++i%2B%2B;
++++txt.setText(formatTime(i));+//+formatTime+is+just+for+make+it+readable+in+HH:MM:SS:MS,+but+I+assume+you+already+have+this
++++mHandler.postDelayed(this,+1);
++++}
++};
}|code-block|syntax|javascript|2084835|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

I have found the way after lots and lots of research. I don't know if it's effective or not, because the truth is that the Emulator crashes after about 10 seconds, but on the phone it runs just fine, and that does it for me. It looks something like this:

<pre><code>import android.os.Handler;
public class Chronometer extends Activity {
 private Handler mHandler = new Handler();
public void actions() {
 mHandler.removeCallbacks(mUpdateTimeTask);
 mHandler.postDelayed(mUpdateTimeTask, 1); //1 is the number of milliseconds you want the text to be updated
}
Runnable mUpdateTimeTask = new Runnable() {
 public void run() {
 i++;
 txt.setText(formatTime(i)); // formatTime is just for make it readable in HH:MM:SS:MS, but I assume you already have this
 mHandler.postDelayed(this, 1);
 }
 };
}
</code></pre>

I'm looking for a way to make the Chronometer in Android (preferably 1.6 and upwards) show 10ths of a second while counting up.

Is it possible to do this? If not, is there a free (and preferably open source) library that does the same? Failing that I'll write my own, but I'd rather use someone else's!

Show milliseconds with Android Chronometer

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在寻找一种方法，使天文计时器在Android (最好是1.6及以上)显示10分之1秒，同时计数。有可能做到这一点吗？如果没有，有没有免费的(最好是开源的)库来做同样的事情？如果做不到这一点，我会写我自己的，但我宁愿使用别人的！

问使用Android计时器显示毫秒
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回答 7

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回答 7

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问使用Android计时器显示毫秒
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