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Hide BottomNavigationBar when document have just one page. #78

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Hide BottomNavigationBar when document have just one page. #78

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109 changes: 55 additions & 54 deletions lib/src/viewer.dart
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Original file line number Diff line number Diff line change
Expand Up @@ -140,64 +140,65 @@ class _PDFViewerState extends State<PDFViewer> {
)
: null,
floatingActionButtonLocation: FloatingActionButtonLocation.centerDocked,
bottomNavigationBar: (widget.showNavigation || widget.document.count > 1)
? BottomAppBar(
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: IconButton(
icon: Icon(Icons.first_page),
tooltip: widget.tooltip.first,
onPressed: () {
_pageNumber = 1;
_loadPage();
},
),
),
Expanded(
child: IconButton(
icon: Icon(Icons.chevron_left),
tooltip: widget.tooltip.previous,
onPressed: () {
_pageNumber--;
if (1 > _pageNumber) {
_pageNumber = 1;
}
_loadPage();
},
),
bottomNavigationBar: Visibility(
visible: (widget.showNavigation && widget.document.count > 1),
child: BottomAppBar(
child: new Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: IconButton(
icon: Icon(Icons.first_page),
tooltip: widget.tooltip.first,
onPressed: () {
_pageNumber = 1;
_loadPage();
},
),
widget.showPicker
? Expanded(child: Text(''))
: SizedBox(width: 1),
Expanded(
child: IconButton(
icon: Icon(Icons.chevron_right),
tooltip: widget.tooltip.next,
onPressed: () {
_pageNumber++;
if (widget.document.count < _pageNumber) {
_pageNumber = widget.document.count;
}
_loadPage();
},
),
),
Expanded(
child: IconButton(
icon: Icon(Icons.chevron_left),
tooltip: widget.tooltip.previous,
onPressed: () {
_pageNumber--;
if (1 > _pageNumber) {
_pageNumber = 1;
}
_loadPage();
},
),
Expanded(
child: IconButton(
icon: Icon(Icons.last_page),
tooltip: widget.tooltip.last,
onPressed: () {
),
widget.showPicker
? Expanded(child: Text(''))
: SizedBox(width: 1),
Expanded(
child: IconButton(
icon: Icon(Icons.chevron_right),
tooltip: widget.tooltip.next,
onPressed: () {
_pageNumber++;
if (widget.document.count < _pageNumber) {
_pageNumber = widget.document.count;
_loadPage();
},
),
}
_loadPage();
},
),
],
),
)
: Container(),
),
Expanded(
child: IconButton(
icon: Icon(Icons.last_page),
tooltip: widget.tooltip.last,
onPressed: () {
_pageNumber = widget.document.count;
_loadPage();
},
),
),
],
),
)
),
);
}
}