我試圖更頻繁地更新Widget,而不是1.6docs施加的30分鐘限制。在閱讀了幾乎每篇文章,開發人員文檔和其他各種資源後,我認爲自己已經達到了可以實施它的程度。所以,我嘗試了,失敗了。從那以後,我已經瀏覽了更多的論壇和解決方案,我似乎無法得到它的更新。使用AlarmManager更新應用程序窗口小部件
我有一個更新類設置AlarmManager:
public class Update extends Service{
@Override
public void onStart(Intent intent, int startId) {
String currentTemp = Battery.outputTemp;
String currentLevel = Battery.outputLevel;
String currentCard = Battery.outputCard;
String currentInternal = Battery.memory;
String currentRam = String.valueOf(Battery.outputRam).substring(0, 3) + "MB";
// Change the text in the widget
RemoteViews updateViews = new RemoteViews(
this.getPackageName(), R.layout.main);
//update temp
updateViews.setTextViewText(R.id.batteryTemp, currentTemp);
//update %
updateViews.setTextViewText(R.id.batteryLevel, currentLevel);
//update level
updateViews.setTextViewText(R.id.sdCard, currentCard);
//update internal memory
updateViews.setTextViewText(R.id.internal, currentInternal);
//update ram
updateViews.setTextViewText(R.id.ram, currentRam);
ComponentName thisWidget = new ComponentName(this, Widget.class);
AppWidgetManager manager = AppWidgetManager.getInstance(this);
manager.updateAppWidget(thisWidget, updateViews);
}
@Override
public IBinder onBind(Intent intent) {
// no need to bind
return null;
}
}
這引起我的onReceive在我的窗口小部件類頻繁開火(我有一個敬酒看到火災時),但它沒有攜帶意圖(吐司是爲了顯示這個,因爲他們收到,但它是空白的)。
我無法弄清楚(我是一個相對newb-2個月的慢的android開發),並感謝您有任何見解。
我的繼承人蔘考widget類:
public class Widget extends AppWidgetProvider {
@Override
public void onUpdate(Context context, AppWidgetManager appWidgetManager,
int[] appWidgetIds) {
AlarmManager alarmManager;
Intent intent = new Intent(context, Update.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0,
intent, PendingIntent.FLAG_UPDATE_CURRENT);
alarmManager = (AlarmManager) context
.getSystemService(Context.ALARM_SERVICE);
Calendar cal = Calendar.getInstance();
cal.setTimeInMillis(System.currentTimeMillis());
cal.add(Calendar.SECOND, 10);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, cal
.getTimeInMillis(), 5 * 1000, pendingIntent);
String currentTemp = Battery.outputTemp;
String currentLevel = Battery.outputLevel;
String currentCard = Battery.outputCard;
String currentInternal = Battery.memory;
String currentRam = String.valueOf(Battery.outputRam).substring(0, 3)
+ "MB";
// Change the text in the widget
RemoteViews updateViews = new RemoteViews(context.getPackageName(),
R.layout.main);
// update temp
updateViews.setTextViewText(R.id.batteryTemp, currentTemp);
appWidgetManager.updateAppWidget(appWidgetIds, updateViews);
// update %
updateViews.setTextViewText(R.id.batteryLevel, currentLevel);
appWidgetManager.updateAppWidget(appWidgetIds, updateViews);
// update level
updateViews.setTextViewText(R.id.sdCard, currentCard);
appWidgetManager.updateAppWidget(appWidgetIds, updateViews);
// update internal memory
updateViews.setTextViewText(R.id.internal, currentInternal);
appWidgetManager.updateAppWidget(appWidgetIds, updateViews);
// update ram
updateViews.setTextViewText(R.id.ram, currentRam);
appWidgetManager.updateAppWidget(appWidgetIds, updateViews);
super.onUpdate(context, appWidgetManager, appWidgetIds);
}
public void onReceive(Context context, Intent intent) {
super.onReceive(context, intent);
Toast
.makeText(context, intent.getAction() + context,
Toast.LENGTH_LONG).show();
Bundle extras = intent.getExtras();
if (extras != null) {
AppWidgetManager appWidgetManager = AppWidgetManager
.getInstance(context);
ComponentName thisAppWidget = new ComponentName(context
.getPackageName(), Widget.class.getName());
int[] appWidgetIds = appWidgetManager
.getAppWidgetIds(thisAppWidget);
onUpdate(context, appWidgetManager, appWidgetIds);
}
}
}
這是我幾年前的問題,關於我的第一個android程序(的確是我的第一個編程項目之一)。哦,它是如何讓我看看我以前的代碼。 – doydoy 2013-10-30 11:04:39