Question

private static void addToCalendar(ActivityAppointment ctx, final String title, final long dtstart, final long dtend) {
    final ContentResolver cr = ctx.getContentResolver();
    Cursor cursor ;
    if (Integer.parseInt(Build.VERSION.SDK) >= 8 )
        cursor = cr.query(Uri.parse("content://com.android.calendar/calendars"), new String[]{ "_id", "displayname" }, null, null, null);
    else
        cursor = cr.query(Uri.parse("content://calendar/calendars"), new String[]{ "_id", "displayname" }, null, null, null);
    if ( cursor.moveToFirst() ) {
        final String[] calNames = new String[cursor.getCount()];
        final int[] calIds = new int[cursor.getCount()];
        for (int i = 0; i < calNames.length; i++) {
            calIds[i] = cursor.getInt(0);
            calNames[i] = cursor.getString(1);
            cursor.moveToNext();
        }

        AlertDialog.Builder builder = new AlertDialog.Builder(ctx);
        builder.setSingleChoiceItems(calNames, -1, new DialogInterface.OnClickListener() {

            @Override
            public void onClick(DialogInterface dialog, int which) {
                ContentValues cv = new ContentValues();
                cv.put("calendar_id", calIds[which]);
                cv.put("title", title);
                cv.put("dtstart", dtstart );
                cv.put("hasAlarm", 1);
                cv.put("dtend", dtend);

                Uri newEvent ;
                if (Integer.parseInt(Build.VERSION.SDK) >= 8 )
                    newEvent = cr.insert(Uri.parse("content://com.android.calendar/events"), cv);
                else
                    newEvent = cr.insert(Uri.parse("content://calendar/events"), cv);

                if (newEvent != null) {
                    long id = Long.parseLong( newEvent.getLastPathSegment() );
                    ContentValues values = new ContentValues();
                    values.put( "event_id", id );
                    values.put( "method", 1 );
                    values.put( "minutes", 15 ); // 15 minutes
                    if (Integer.parseInt(Build.VERSION.SDK) >= 8 )
                        cr.insert( Uri.parse( "content://com.android.calendar/reminders" ), values );
                    else
                        cr.insert( Uri.parse( "content://calendar/reminders" ), values );

                }
                dialog.dismiss();
            }

        });

        builder.create().show();
    }
    cursor.close();
}

这个方法我调用了其他一些函数

    public void SaveData()
  { 
                .......
              addToCalendar(this, edSubject.getText().toString(), startMillis, endMillis);
}

我的logcat错误是：

01-16 17:17:56.740: E/WindowManager(4166): Activity com.sree.weekdayview.calendar.activities.ActivityAppointment has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40810e90 that was originally added here
01-16 17:17:56.740: E/WindowManager(4166): android.view.WindowLeaked: Activity com.sree.weekdayview.calendar.activities.ActivityAppointment has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView@40810e90 that was originally added here
01-16 17:17:56.740: E/WindowManager(4166):  at android.view.ViewRoot.<init>(ViewRoot.java:291)
01-16 17:17:56.740: E/WindowManager(4166):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:249)
01-16 17:17:56.740: E/WindowManager(4166):  at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:193)
01-16 17:17:56.740: E/WindowManager(4166):  at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:118)
01-16 17:17:56.740: E/WindowManager(4166):  at android.view.Window$LocalWindowManager.addView(Window.java:532)
01-16 17:17:56.740: E/WindowManager(4166):  at android.app.Dialog.show(Dialog.java:269)
01-16 17:17:56.740: E/WindowManager(4166):  at com.sree.weekdayview.calendar.activities.ActivityAppointment.SaveData(ActivityAppointment.java:381)
01-16 17:17:56.740: E/WindowManager(4166):  at com.sree.weekdayview.calendar.activities.ActivityAppointment$3.onClick(ActivityAppointment.java:123)

Answer 1

由于您正在显示的对话框，您收到此错误。对话框与其主机（活动）的生命周期紧密相关，这意味着通常不应尝试在专用平台方法之外创建和/或显示对话框。在你的情况下，当对话框显示时，活动可能被破坏（例如因为方向改变），因此是例外。

将对话的生命周期与其主机的生命周期绑定有两种方法：

在API级别13之前，专用平台方法为onCreateDialog()（以及showDialog() / dismissDialog()）。它们在活动中可用，应该被覆盖以在id的基础上创建/显示/删除对话框。
启动API级别13不推荐使用上述方法，而是使用DialogFragment，这是一个对话框的片段包装器，其生命周期由FragmentManager管理。
< / LI>
我建议你的第三个选择是将DialogFragment方法与支持库结合使用。这基本上是选项二，但使用了后移功能，使现代逻辑能够在运行Android 1.6及更高版本的设备上运行。

有关实施细节，请参阅Android开发者网站上的Dialogs topic。可以找到使用弃用方法的示例here。

泄漏的窗口com.android.internal.policy.impl.PhoneWindow$DecorView@40810e90，最初是在这里添加的

1 个答案: