Question

我是Android新手。我正在开发一种app锁柜。当用户启动一个锁定的应用时，我想始终在全屏'//Procedure name. Sub Seperate_Item_Codes_and_Descriptions() '//A comment. 'Seperate the item codes and the descriptions and put them in respectively in columns D and E. '//Setting up the variables. Dim s As Long, a As Long, aVALs As Variant '//Everything between this statement and End With that starts with a '.' will apply to the '//first worksheet in the workbook (if you rearrange the order of sheets it will still look '//at the tab that appears first in the workbook). With Worksheets(1) 'Get all values in the range B12 to last row containing data in column B and place in an array. 'Value2 is the same as Value except it doesn't use Currency or Date formats. 'https://support.microsoft.com/en-us/kb/182812 'The array will be: aVALS(1 to rownum,1 to 1) 'Use aVALS(1,1) for first value, aVALS(2,1) for second value. 'NB: If the last row is higher up than row 12 you'll get unexpected results. aVALs = .Range(.Cells(12, "B"), .Cells(.Rows.Count, "B").End(xlUp)).Value2 'Update the last dimension of the array, while keeping the original values so its: aVALS(1 to rownum, 1 to 2) 'Use aVALS(1,1) is first value, aVALS(1,2) is empty, aVALS(2,1) is second value... ReDim Preserve aVALs(LBound(aVALs, 1) To UBound(aVALs, 1), 1 To 2) 'Step through the first dimension of the array (the 1 to rownum bit). For a = LBound(aVALs, 1) To UBound(aVALs, 1) 'Find the location of the first space in the element of the dimension being looked at. 'Chr(32) is an Ascii space... I think. s = InStr(1, aVALs(a, 1), Chr(32)) 'Split the array by space and repopulate the array. 'Will now read as aVALS(1,1) = text to left of space, aVALS(1,2) = text to right of space. aVALs(a, 2) = Mid(aVALs(a, 1), s + 1) aVALs(a, 1) = Left(aVALs(a, 1), s - 1) Next a 'Paste the array of split text back into the first worksheet in column D & E. .Cells(12, "D").Resize(UBound(aVALs, 1), UBound(aVALs, 2)) = aVALs End With End Sub上开始监听Activity。我想让用户摆脱onTouchEvent()只有当他/她输入敲门密码作为密码时。我使用以下代码来锁定按钮，使Activity始终位于顶部（来源：Creating a system overlay window (always on top)）。但是Activity没有收到针对爆破代码的任何触摸。我经常搜索并尝试了很多代码。但总有一种解决方案会破坏当前问题等其他部分！

onTouchEvent()

Answer 1

onTouchEvent()不起作用，因为我们在所有内容上都有叠加层。因此，当我们触摸屏幕时，我们会触摸ViewGroup。因此，当用户触摸onTouchEvent()时，我们需要触发ViewGroup。我们可以像这样触发它：

mTopView.setOnTouchListener(new OnTouchListener() {
            @Override
            public boolean onTouch(View arg0, MotionEvent event) 
            {  
                   // do something ...
            }
});

使用always on top活动锁定应用程序

1 个答案: