我正在使用Titanium Appcelerator,我需要在应用程序中创建循环进度条方面的帮助。任何人都可以解释一下循环进度条如何工作以及如何以循环方式填充循环内的进度。?
答案 0 :(得分:4)
请立即使用此Alloy Widget: https://github.com/manumaticx/circularprogress
原始答案
我知道这有点晚了,但是经过大约一天的工作后,我想出了这个。
var win = Ti.UI.createWindow({ 宽度: '100%', 高度: '100%' }); win.open();
function circularProgressBar(options)
{
var opts = options;
if (opts.percent == null || opts.percent > 1 || opts.percent < 0) opts.percent = 1;
if (opts.size == null) opts.size = 46;
if (opts.margin == null) opts.margin = 4;
if (opts.backgroundColor == null) opts.backgroundColor = '#fff';
if (opts.progressColor == null) opts.progressColor = '#4ba818';
if (opts.topper == null) opts.topper = {};
if (opts.topper.color == null) opts.topper.color = '#fff';
if (opts.topper.size == null) opts.topper.size = 36;
if (opts.font == null) opts.font = {};
if (opts.font.visible == null) opts.font.visible = true;
if (opts.font.size == null) opts.font.size = 12;
if (opts.font.color == null) opts.font.color = '#900';
if (opts.font.shadowColor == null) opts.font.shadowColor = '#aaa';
if (opts.font.shadowRadius == null) opts.font.shadowRadius = 1;
if (opts.font.shadowOffset == null) opts.font.shadowOffset = {};
if (opts.font.shadowOffset.x == null) opts.font.shadowOffset.x = 0;
if (opts.font.shadowOffset.y == null) opts.font.shadowOffset.y = 1;
var mainHolder = Ti.UI.createView({
left: options.left,
right: options.right,
top: options.top,
bottom: options.bottom,
width: opts.size + opts.margin,
height: opts.size + opts.margin,
borderRadius: (opts.size + opts.margin) / 2,
backgroundColor: opts.backgroundColor
});
var holder = Ti.UI.createView({
width: opts.size,
height: opts.size,
borderRadius: opts.size / 2
});
var layer1 = Ti.UI.createView({
width: opts.size,
height: opts.size,
borderRadius: opts.size / 2,
backgroundColor: opts.progressColor
});
var layer2 = Ti.UI.createView({
left: 0,
width: opts.size / 2,
height: opts.size,
anchorPoint: {
x: 1,
y: 0.5
},
backgroundColor: opts.backgroundColor
});
var layer3 = Ti.UI.createView({
right: 0,
width: opts.size / 2,
height: opts.size,
anchorPoint: {
x: 0,
y: 0.5
},
backgroundColor: opts.backgroundColor
});
var layer4 = Ti.UI.createView({
right: 0,
width: opts.size / 2,
height: opts.size,
anchorPoint: {
x: 0,
y: 0.5
},
backgroundColor: opts.progressColor
});
var topper = Ti.UI.createView({
width: opts.topper.size,
height: opts.topper.size,
borderRadius: opts.topper.size / 2,
backgroundColor: opts.topper.color
});
var percentText = Ti.UI.createLabel({
visible: opts.font.visible,
width: Ti.UI.SIZE,
height: Ti.UI.SIZE,
color: opts.font.color,
font: {
fontSize:opts.font.size
},
shadowColor: opts.font.shadowColor,
shadowRadius: opts.font.shadowRadius,
shadowOffset: {
x: opts.font.shadowOffset.x,
y: opts.font.shadowOffset.y
},
textAlign: Ti.UI.TEXT_ALIGNMENT_CENTER,
text: (opts.percent * 100) + '%'
});
mainHolder.add(holder);
topper.add(percentText);
holder.add(layer1);
holder.add(layer2);
holder.add(layer3);
holder.add(layer4);
holder.add(topper);
var percent = opts.percent;
var angle = 360 * percent;
layer2.visible = (angle > 180) ? false : true;
layer4.visible = (angle > 180) ? true : false;
layer3.transform = Ti.UI.create2DMatrix().rotate(angle);
return mainHolder;
}
/* Circular Progress Bar Options
percent: A value between 0 and 1
size: The size of the circular progress bar
margin: The margin of the circular progress bar
backgroundColor: The backgroundColor of the circular area
progressColor: The backgroundColor of the progress bar
--
topper.color: The center circle color
topper.size: The size of the center circle
---
font.visible: Boolean to display the font or not
font.color: The font color
font.size: The fontSize
font.shadowColor: The font shadow color
font.shadowRadius: The font shadow radius
font.shadowOffset.x: The x value of the shadow shadowOffset
font.shadowOffset.y: The y value of the shadow shadowOffset
*/
var circleProgress1 = circularProgressBar({
top:50,
percent:0.35,
size:46,
margin:4,
backgroundColor:'#fff',
progressColor:'#4ba818',
topper: {
color:'#fff',
size: 36
},
font: {
visible: true,
color: '#900',
size: 12,
shadowColor: '#aaa',
shadowRadius: 1,
shadowOffset: {
x: 0,
y: 1
}
}
});
win.add(circleProgress1);
所有^^^创造了这个:
编辑:我用来创建这个的方法来自Malcom这个帖子的想法:https://developer.appcelerator.com/question/154274/is-there-a-way-to-create-circular-progress-bar
答案 1 :(得分:-2)
这根本不是进度条 - 它是一个“活动指标”。
它没有像进度条那样显示真正的进展。使用进度条,您可以为进度设置值(例如,0-100%)。这只是“旋转”让用户知道他们需要等待。
要创建活动指标,请参阅此处:http://docs.appcelerator.com/titanium/2.0/#!/api/Titanium.UI.ActivityIndicator
快速举例:
var activityView = Ti.UI.createView({visible: false});
var activityIndicator = Ti.UI.createActivityIndicator({
message: 'Loading...',
height:'auto',
width:'auto'
});
activityView.add(activityIndicator);
activityView.show();
这个例子可行,但它没有样式。我会留给你决定你想要它的样子。如果你想让它看起来像你发布的图像,请查看viewColor,borderRadius和view属性的透明度。