我在IONIC中創建了一個我正在嘗試做的代碼。Angularjs代碼適用於桌面Chrome,但不適用於移動Chrome
http://codepen.io/anon/pen/yNjmoK
HTML:
<html ng-app="myApp">
<head>
<script src="http://cdnjs.cloudflare.com/ajax/libs/camanjs/4.0.0/caman.full.min.js">
</script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.14/angular.min.js">
</script>
</head>
<body ng-controller="myCtrl">
<div id="photo">
<canvas id="canvas" width="400" height="400" style="border:1px solid #d3d3d3;"></canvas>
</div>
<div id="filterContainer">
<ul id="filters">
<li> <a href="#" id="normal" ng-click="applyFilter($event)">Normal</a> </li>
<li> <a href="#" id="vintage" ng-click="applyFilter($event)">Vintage</a> </li>
<li> <a href="#" id="lomo" ng-click="applyFilter($event)">Lomo</a> </li>
<li> <a href="#" id="clarity" ng-click="applyFilter($event)">Clarity</a> </li>
</div>
</body>
</html>
JS:
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
var canvas = document.getElementById('canvas');
var context = canvas.getContext('2d');
var image = new Image();
image.onload = function() {
context.drawImage(image, 0, 0, 460, 460);
};
image.crossOrigin = "anonymous";
image.src = "https://dl.dropboxusercontent.com/u/139992952/stackoverflow/colorhouse.png";
$scope.applyFilter = function(event) {
// Clone the canvas
var clone = canvas.cloneNode(true);
// Clone the image stored in the canvas as well
clone.getContext('2d').drawImage(canvas, 0, 0, 400, 400);
var theParent = document.getElementById("photo");
theParent.removeChild(document.getElementById('canvas'));
theParent.appendChild(clone);
var effect = String(event.target.id).trim();
Caman(clone, function() {
// If such an effect exists, use it:
if (effect in this) {
console.log("Effect GOOD");
this[effect]();
this.render();
} else {
console.log("Effect ERROR");
}
});
};
});
裏面的codepen的圖像帶來了我申請一個過濾器。在codepen裏面這是工作。然後我嘗試將其應用於離子,但它不起作用。當我點擊一個過濾器時,它的效果就像caman功能中的代碼'if(effect in this)',並在控制檯中打印'Effect is GOOD',但在手機上,畫布變成白色,就是這樣。「
更新:我剛剛注意到在我的android設備上,如果我從我的移動瀏覽器(鉻)運行codepen它不起作用。如果我在我的桌面上運行它在鉻內部它確實工作,所以它看起來像一個瀏覽器問題?在那裏如果檢測到HiDPI顯示反正解決這一問題?
我不認爲這是有角的問題;我懷疑它與移動瀏覽器如何處理'
我有同樣的問題,但我只是使用角。該代碼使用ngFor over JSON數組。它適用於桌面Chrome或Firefox,但不適用於Android Chrome或Firefox。 CoolPad手機上的Android版本5。我不使用CamanJS,所以如何禁用與純角度hidpi? –