我正在尝试构建一个通知并显示它,并根据我正在显示的 Intent 构建一个堆栈。但我收到一个 NameNotFoundException。
Intent resultIntent = new Intent(mContext, ForecastFragment.class);
TaskStackBuilder stackBuilder = TaskStackBuilder.create(mContext);
stackBuilder.addParentStack(ForecastFragment.class);
stackBuilder.addNextIntent(resultIntent);
PendingIntent resultPendingIntent = stackBuilder.
getPendingIntent(0, PendingIntent.FLAG_UPDATE_CURRENT);
mBuilder.setContentIntent(resultPendingIntent);
NotificationManager notificationManager =
(NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(10 ,mBuilder.build());
这是我得到的异常。
3541-3562/com.example.android.sunshine.app E/AndroidRuntime: FATAL EXCEPTION: SyncAdapterThread-1
Process: com.example.android.sunshine.app, PID: 3541
java.lang.IllegalArgumentException: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{com.example.android.sunshine.app/com.example.android.sunshine.app.ForecastFragment}
at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:247)
at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:226)
at com.example.android.sunshine.app.sync.SunshineSyncAdapter.notifyWeather(SunshineSyncAdapter.java:526)
at com.example.android.sunshine.app.sync.SunshineSyncAdapter.getWeatherDataFromJson(SunshineSyncAdapter.java:424)
at com.example.android.sunshine.app.sync.SunshineSyncAdapter.onPerformSync(SunshineSyncAdapter.java:255)
at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:259)
Caused by: android.content.pm.PackageManager$NameNotFoundException: ComponentInfo{com.example.android.sunshine.app/com.example.android.sunshine.app.ForecastFragment}
at android.app.ApplicationPackageManager.getActivityInfo(ApplicationPackageManager.java:314)
at android.support.v4.app.NavUtils.getParentActivityName(NavUtils.java:301)
at android.support.v4.app.NavUtils.getParentActivityIntent(NavUtils.java:256)
at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:240)
at android.support.v4.app.TaskStackBuilder.addParentStack(TaskStackBuilder.java:226)
at com.example.android.sunshine.app.sync.SunshineSyncAdapter.notifyWeather(SunshineSyncAdapter.java:526)
at com.example.android.sunshine.app.sync.SunshineSyncAdapter.getWeatherDataFromJson(SunshineSyncAdapter.java:424)
at com.example.android.sunshine.app.sync.SunshineSyncAdapter.onPerformSync(SunshineSyncAdapter.java:255)
at android.content.AbstractThreadedSyncAdapter$SyncThread.run(AbstractThreadedSyncAdapter.java:259)
我检查了包名称和类 ForecastFragment
所在的包,但它们都是正确的。
有人可以帮我整理一下这个吗?
最佳答案
fragment 不是组件,不能与 Intent 一起使用。只有 Activity
、Service
或 BroadcastReceiver
等组件可用于构建 Intent
。
因此,您的第一行 (new Intent(mContext, ForecaseFragment.class)
) 和 addParentStack(ForecastFragment.class)
均无效。您需要使用在包含该 fragment 的 list 中注册的Activity
。
关于java - addParentStack 中的 NameNotFoundException,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/38043592/