Android 数字时钟-显示秒数-安卓布局
我正在我的应用程序中使用Android 数字时钟-显示秒数-安卓布局,android,android-layout,Android,Android Layout,我正在我的应用程序中使用DigitalClock,希望同时显示秒数。格式应该是hh:mm:ss,但它只是hh:mm <DigitalClock android:id="@+id/digitalClock" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_weight="
DigitalClock
,希望同时显示秒数。格式应该是hh:mm:ss
,但它只是hh:mm
<DigitalClock
android:id="@+id/digitalClock"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_weight="1" />
我只找到了删除秒数的教程,但默认情况下我的时钟不会显示秒数
提前非常感谢。将此代码用作数字时钟:
import android.content.Context;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.os.Handler;
import android.os.SystemClock;
import android.provider.Settings;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import java.util.Calendar;
/**
* Like AnalogClock, but digital. Shows seconds.
*
* FIXME: implement separate views for hours/minutes/seconds, so
* proportional fonts don't shake rendering
*/
public class DigitalClock extends TextView {
Calendar mCalendar;
private final static String m12 = "h:mm:ss aa";
private final static String m24 = "k:mm:ss";
private FormatChangeObserver mFormatChangeObserver;
private Runnable mTicker;
private Handler mHandler;
private boolean mTickerStopped = false;
String mFormat;
public DigitalClock(Context context) {
super(context);
initClock(context);
}
public DigitalClock(Context context, AttributeSet attrs) {
super(context, attrs);
initClock(context);
}
private void initClock(Context context) {
Resources r = mContext.getResources();
if (mCalendar == null) {
mCalendar = Calendar.getInstance();
}
mFormatChangeObserver = new FormatChangeObserver();
getContext().getContentResolver().registerContentObserver(
Settings.System.CONTENT_URI, true, mFormatChangeObserver);
setFormat();
}
@Override
protected void onAttachedToWindow() {
mTickerStopped = false;
super.onAttachedToWindow();
mHandler = new Handler();
/**
* requests a tick on the next hard-second boundary
*/
mTicker = new Runnable() {
public void run() {
if (mTickerStopped) return;
mCalendar.setTimeInMillis(System.currentTimeMillis());
setText(DateFormat.format(mFormat, mCalendar));
invalidate();
long now = SystemClock.uptimeMillis();
long next = now + (1000 - now % 1000);
mHandler.postAtTime(mTicker, next);
}
};
mTicker.run();
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mTickerStopped = true;
}
/**
* Pulls 12/24 mode from system settings
*/
private boolean get24HourMode() {
return android.text.format.DateFormat.is24HourFormat(getContext());
}
private void setFormat() {
if (get24HourMode()) {
mFormat = m24;
} else {
mFormat = m12;
}
}
private class FormatChangeObserver extends ContentObserver {
public FormatChangeObserver() {
super(new Handler());
}
@Override
public void onChange(boolean selfChange) {
setFormat();
}
}
}
将此代码用作数字时钟:
import android.content.Context;
import android.content.res.Resources;
import android.database.ContentObserver;
import android.os.Handler;
import android.os.SystemClock;
import android.provider.Settings;
import android.text.format.DateFormat;
import android.util.AttributeSet;
import java.util.Calendar;
/**
* Like AnalogClock, but digital. Shows seconds.
*
* FIXME: implement separate views for hours/minutes/seconds, so
* proportional fonts don't shake rendering
*/
public class DigitalClock extends TextView {
Calendar mCalendar;
private final static String m12 = "h:mm:ss aa";
private final static String m24 = "k:mm:ss";
private FormatChangeObserver mFormatChangeObserver;
private Runnable mTicker;
private Handler mHandler;
private boolean mTickerStopped = false;
String mFormat;
public DigitalClock(Context context) {
super(context);
initClock(context);
}
public DigitalClock(Context context, AttributeSet attrs) {
super(context, attrs);
initClock(context);
}
private void initClock(Context context) {
Resources r = mContext.getResources();
if (mCalendar == null) {
mCalendar = Calendar.getInstance();
}
mFormatChangeObserver = new FormatChangeObserver();
getContext().getContentResolver().registerContentObserver(
Settings.System.CONTENT_URI, true, mFormatChangeObserver);
setFormat();
}
@Override
protected void onAttachedToWindow() {
mTickerStopped = false;
super.onAttachedToWindow();
mHandler = new Handler();
/**
* requests a tick on the next hard-second boundary
*/
mTicker = new Runnable() {
public void run() {
if (mTickerStopped) return;
mCalendar.setTimeInMillis(System.currentTimeMillis());
setText(DateFormat.format(mFormat, mCalendar));
invalidate();
long now = SystemClock.uptimeMillis();
long next = now + (1000 - now % 1000);
mHandler.postAtTime(mTicker, next);
}
};
mTicker.run();
}
@Override
protected void onDetachedFromWindow() {
super.onDetachedFromWindow();
mTickerStopped = true;
}
/**
* Pulls 12/24 mode from system settings
*/
private boolean get24HourMode() {
return android.text.format.DateFormat.is24HourFormat(getContext());
}
private void setFormat() {
if (get24HourMode()) {
mFormat = m24;
} else {
mFormat = m12;
}
}
private class FormatChangeObserver extends ContentObserver {
public FormatChangeObserver() {
super(new Handler());
}
@Override
public void onChange(boolean selfChange) {
setFormat();
}
}
}
非常感谢,效果很好。我认为这只是一个配置问题。我删除了
Resources r=mContext.getResources()代码>,它不在任何地方使用。当从其他地方复制内容时,请始终为源代码添加属性。非常感谢,效果非常好。我认为这只是一个配置问题。我删除了Resources r=mContext.getResources()代码>,它不在任何地方使用。从其他地方复制内容时,请始终将源属性设置为。