[英]I'm creating a table in in which the data is being gotten from a JSON file. this is the code
[英]I'm creating a Mac application that needs to read and write to/from an HTML file. How do I achieve this?
我的項目中包含一個HTML文件。 我用它來初始化一個顯示自定義Google Map的WebView
。 我是OSX應用程序的新手(我來自iOS),所以這對我來說有點新...
HTML文件的某些部分我希望是“動態的”,尤其是在javascript函數中。
這是我獲取本地文件的URL並加載WebView的方法:
-(void)awakeFromNib
{
NSString *indexPath = [[NSBundle mainBundle] pathForResource:@"index" ofType:@"html"];
[[mapView mainFrame] loadRequest:[NSURLRequest requestWithURL:[NSURL fileURLWithPath:indexPath]]];
[[[mapView mainFrame] frameView] setAllowsScrolling:NO];
[mapView setNeedsDisplay:YES];
}
這是HTML文件:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8"/>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
</head>
<body style="width:100%;height:100%">
<div id="map_area" style="position: absolute; top: 0; right: 0; bottom: 0; left: 0"> </div>
<script type="text/javascript">
//map = new GMap2(document.getElementById("map_area"));
//map.setCenter(new GLatLng(37.4419, -122.1419), 13);
var myLatLng = new google.maps.LatLng(0, -180);
var mapOptions = {
zoom: 1,
center: myLatLng,
mapTypeId: google.maps.MapTypeId.TERRAIN
};
var map = new google.maps.Map(document.getElementById('map_area'), mapOptions);
var flightPlanCoordinates = [
new google.maps.LatLng(37.772323, -122.214897),
new google.maps.LatLng(21.291982, -157.821856),
new google.maps.LatLng(-18.142599, 178.431),
new google.maps.LatLng(-27.46758, 153.027892)
];
var flightPath = new google.maps.Polyline({
path: flightPlanCoordinates,
strokeColor: '#FF0000',
strokeOpacity: 1.0,
strokeWeight: 2
});
flightPath.setMap(map);
</script>
</body>
</html>
如何即時更改JavaScript? 我希望能夠添加/刪除坐標並繪制多條折線。 當在iOS中使用HTML / XML時,我使用了一種稱為HPPLE的東西,它可以通過HTML / XML文件進行解析...
如果您對如何解決此問題有任何幫助,將不勝感激。或者,如果您知道調用JavaScript函數的更好方法,請隨時告訴我。
從文件讀取
NSString * selfilecontent = [NSString stringWithContentsOfFile:path];
[texteditor setString:selfilecontent]; //shown in textView
寫入文件
[[[texteditor textStorage]string] writeToFile:@"/Volumes/test1.rtf" atomically:YES encoding:NSUnicodeStringEncoding error:nil];
執行webScript:
NSString *href = [[aWebView windowScriptObject] evaluateWebScript:@"location.href"];
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