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我的应用程序有一个堆栈小部件,当单击小部件时,它当前只是启动主要活动。我想更改此设置,以便为主要活动提供有关单击的小部件项的信息。我想通过的对象实现 Parcelable 并且可以通过通知中的意图成功传递。但是,当捆绑在小部件的意图中时,它似乎总是为空。

有任何想法吗?

StackWidgetProvider

     // set intent for item click (opens main activity)
        Intent viewIntent = new Intent(context, DealPadActivity.class);
        viewIntent.putExtra(AppWidgetManager.EXTRA_APPWIDGET_ID, appWidgetIds[i]);
        viewIntent.setData(Uri.parse(viewIntent.toUri(Intent.URI_INTENT_SCHEME)));
        PendingIntent viewPendingIntent = PendingIntent.getActivity(context, 0, viewIntent, PendingIntent.FLAG_UPDATE_CURRENT);
        rv.setPendingIntentTemplate(R.id.stack_view, viewPendingIntent);

StackWidgetService

public RemoteViews getViewAt(int position) {

    RemoteViews rv = new RemoteViews(mContext.getPackageName(), R.layout.stack_widget_item);
    if (position < mWidgetItems.size()){
        rv.setTextViewText(R.id.stack_widget_title, mWidgetItems.get(position).title);
        rv.setTextViewText(R.id.stack_widget_price, mWidgetItems.get(position).price);
        rv.setTextViewText(R.id.stack_widget_heat, mWidgetItems.get(position).heat);
        Bitmap picture = imageLaoder.getBitmap(mWidgetItems.get(position).imageUrl, true) ;
        rv.setImageViewBitmap(R.id.stack_widget_image, picture);
    }

    Intent fillInIntent = new Intent();

    Bundle extras = new Bundle();
    extras.putInt(StackWidgetProvider.EXTRA_ITEM, position);
    extras.putParcelable("notificationDeal", new Deal(...));
    fillInIntent.putExtras(extras);

    rv.setOnClickFillInIntent(R.id.stack_widget_layout, fillInIntent);
    return rv;
}

主要活动

    Bundle data = queryIntent.getExtras(); 

    if  (data!=null){ // check to see if from widget or notification
    Deal deal = data.getParcelable("notificationDeal");
            if (deal!=null){ // ****ALWAYS NULL FROM WIDGET**** 
                Log.d(this.getClass().getSimpleName(), "going to show passed deal");
                onDealSelected(deal);
            }
            int i = data.getInt("com.bencallis.dealpad.stackwidget.EXTRA_ITEM");
            Log.d(this.getClass().getSimpleName(), "pressed widget is: " + i); **WIDGET ITEM POSITION AS EXPECTED **

** 更新 **

似乎这是编组的问题(特别是解组)

E/Parcel: Class not found when unmarshalling: com.bencallis.abc.Deal, e: java.lang.ClassNotFoundException: com.bencallis.abc.Deal

我已将 Deal 类导入 StackWidgetService 并尝试设置类加载器,但这似乎没有帮助。

Deal 寓言已在应用程序的主要活动中成功使用,我只是在小部件上遇到了这个问题。

交易类

public Deal(Parcel in) {
    in.readParcelable(Deal.class.getClassLoader());
}


@Override
public void writeToParcel(Parcel dest, int flags) {
    dest.writeString(title);
    ...
}

public static final Parcelable.Creator CREATOR = new Parcelable.Creator() {
    public Deal createFromParcel(Parcel in) {
        return new Deal(in);
    }

    public Deal[] newArray(int size) {
        return new Deal[size];
    }
};
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1 回答 1

0

你说你试图设置类加载器。那应该行得通。我不确定您是如何尝试设置类加载器的,因为您没有提供该代码。尝试这个:

MainActivity中,插入:

ClassLoader loader = Deal.class.getClassLoader();
queryIntent.setExtrasClassLoader(loader);

在这之前:

Bundle data = queryIntent.getExtras();
于 2013-06-04T20:45:44.567 回答