Android自定义数字时钟代码
- import java.util.Calendar;
- import android.content.Context;
- import android.os.Handler;
- import android.os.SystemClock;
- import android.text.format.DateFormat;
- import android.util.AttributeSet;
- import android.util.Log;
- import android.widget.TextView;
- public class DigitalClock extends TextView {
- private final static String TAG = "DigitalClock";
- private Calendar mCalendar;
- private String mFormat = "yyyy.M.d E";
- private Runnable mTicker;
- private Handler mHandler;
- private boolean mTickerStopped = false;
- public DigitalClock(Context context) {
- super(context);
- initClock(context);
- }
- public DigitalClock(Context context, AttributeSet attrs) {
- super(context, attrs);
- initClock(context);
- }
- private void initClock(Context context) {
- if (mCalendar == null) {
- mCalendar = Calendar.getInstance();
- }
- }
- @Override
- protected void onAttachedToWindow() {
- mTickerStopped = false;
- super.onAttachedToWindow();
- mHandler = new Handler();
- mTicker = new Runnable() {
- public void run() {
- if (mTickerStopped)
- return;
- mCalendar.setTimeInMillis(System.currentTimeMillis());
- // setText(mSimpleDateFormat.format(mCalendar.getTime()));
- setText(DateFormat.format(mFormat, mCalendar));
- invalidate();
- long now = SystemClock.uptimeMillis();
- // long next = now + (1000 - now % 1000);
- long next = now + (1000 - System.currentTimeMillis() % 1000);
- // Debug
- Log.d(TAG, "" + now);
- Log.d(TAG, "" + next);
- Log.d(TAG, "" + mCalendar.getTimeInMillis());
- // TODO
- mHandler.postAtTime(mTicker, next);
- }
- };
- mTicker.run();
- }
- @Override
- protected void onDetachedFromWindow() {
- super.onDetachedFromWindow();
- mTickerStopped = true;
- }
- public void setFormat(String format) {
- mFormat = format;
- }
- }
来源: http://www.phpxs.com/code/1002174/