Question

我正在创造＆＃34;开始＆＃34;，＆＃34;停止＆＃34;和＆＃34;重置＆＃34;秒表安卓小部件的按钮。

秒表小部件能够在开始时显示，停止按钮无法正常工作。当点击开始按钮时，计时器开始运行，但无法停止。

下面是我的Main.java

public class Main extends AppWidgetProvider {
    public void onUpdate(Context context, AppWidgetManager appWidgetManager,
        int[] appWidgetIds) {
    for (int appWidgetId : appWidgetIds) {

    Intent buildButtonIntent = new Intent();
    buildButtonIntent.setAction("android.intent.action.UPDATE");
    buildButtonIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    PendingIntent buildButtonPendingIntent = PendingIntent.getBroadcast(context, appWidgetId, buildButtonIntent, 0);

    Intent stopButtonIntent = new Intent();
    stopButtonIntent.setAction("android.intent.action.UPDATEd");
    stopButtonIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetId);
    PendingIntent stopButtonPendingIntent = PendingIntent.getBroadcast(context, appWidgetId, stopButtonIntent, PendingIntent.FLAG_CANCEL_CURRENT);

    RemoteViews remoteViews = new RemoteViews(context.getPackageName(), R.layout.main);
    remoteViews.setOnClickPendingIntent(R.id.button1, buildButtonPendingIntent );   
    remoteViews.setOnClickPendingIntent(R.id.button2, stopButtonPendingIntent );
    Toast.makeText(context, "wei...", Toast.LENGTH_SHORT).show();
    appWidgetManager.updateAppWidget(appWidgetId, remoteViews);
    }
}

关注Broadcast.java

    public class Broadcast extends BroadcastReceiver{

    private static int clickCount = 0;
    private Button btnstart;
    private Handler myHandler = new Handler();
    private long startTime = 0L;
    long timeInMillies = 0L;
    long timeSwap = 0L;
    long finalTime = 0L;
    private boolean stopped = false;
    private boolean start_running = true;
    TextView textTimer;
    RemoteViews remoteViews;
    private int REFRESH_RATE = 100;
    ComponentName widget;
    AppWidgetManager awManager;


    private Runnable startStopwatch = new Runnable(){

        public void run(){

            if(stopped){
            timeInMillies =SystemClock.uptimeMillis()-startTime;
            finalTime=timeSwap+timeInMillies;

            int seconds=(int)(finalTime/1000);
            int minutes=seconds/60;
            int hours = minutes/60;
            seconds=seconds%60;
            int milliseconds = (int)(finalTime%1000);

            remoteViews.setTextViewText(R.id.textView1, String.format("%02d : %02d : %02d", hours, minutes, seconds));
            if(stopped){
            myHandler.postDelayed(this, REFRESH_RATE);
            awManager.updateAppWidget(widget, remoteViews);
            }else{

                finalTime=0;
                timeSwap=0;

                myHandler.removeCallbacks(startStopwatch);
                awManager.updateAppWidget(widget, remoteViews);

            }

            }
        }
    };


    public void onReceive(Context context, Intent intent) {
        remoteViews = new RemoteViews(context.getPackageName(), R.layout.main);
        widget = new ComponentName(context, Main.class);
        awManager = AppWidgetManager.getInstance(context);

        if(intent.getAction().equals("android.intent.action.UPDATE")){

            startTime=SystemClock.uptimeMillis();
            stopped = true;
            start_running = false;
            remoteViews.setOnClickPendingIntent(R.id.button1,null );
            myHandler.postDelayed(startStopwatch, REFRESH_RATE);
            awManager.updateAppWidget(widget, remoteViews);
            Toast.makeText(context, "start", Toast.LENGTH_SHORT).show();

        }else{
            if(intent.getAction().equals("android.intent.action.UPDATEd"))

            timeSwap += timeInMillies;
            stopped = false;
            start_running = false;
            remoteViews.setOnClickPendingIntent(R.id.button2, null);
            myHandler.removeCallbacks(startStopwatch);
            awManager.updateAppWidget(widget, remoteViews);
            Toast.makeText(context, "stop", Toast.LENGTH_SHORT).show();


        }
    }

}

Answer 1

我也遇到了问题。您无法在广播接收器中保留远程视图的参考。在每个循环中，您必须反复创建远程视图。我正在使用该警报管理器并将时间间隔设置为10毫秒

 Calendar calendar = Calendar.getInstance();
 calendar.setTimeInMillis(System.currentTimeMillis());          
 calendar.add(Calendar.MILLISECOND, 10);           
 alarmManager.setRepeating(AlarmManager.RTC, calendar.getTimeInMillis(), 10, createClockIntent(context, 1, TIMER_INTENT_REQUEST_CODE));

和克里特时钟意图为您的广播接收器简单的待定意图。我知道这个小部件并不是一个好主意，所以将秒表创建为小部件。

Android Widget（秒表，启动，停止和重置按钮）无法正常工作

1 个答案: