展会信息港展会大全

android开发之三种方式实现自定义圆形进度条ProgressBar 载入中动画
来源:互联网   发布日期:2015-10-03 10:58:22   浏览:6622次  

导读:一、通过动画实现定义res anim loading xml如下:[html]?xmlversion=1 0encoding=UTF-8?animation-listandroid:oneshot=falsexmlns:android=http: schemas android com a...

一、通过动画实现

定义res/anim/loading.xml如下:

[html]

<?xml version="1.0" encoding="UTF-8"?>

<animation-list android:oneshot="false"

xmlns:android="http://schemas.android.com/apk/res/android">

<item android:duration="150" android:drawable="@drawable/loading_01" />

<item android:duration="150" android:drawable="@drawable/loading_02" />

<item android:duration="150" android:drawable="@drawable/loading_03" />

<item android:duration="150" android:drawable="@drawable/loading_04" />

<item android:duration="150" android:drawable="@drawable/loading_05" />

<item android:duration="150" android:drawable="@drawable/loading_06" />

<item android:duration="150" android:drawable="@drawable/loading_07" />

</animation-list>

<?xml version="1.0" encoding="UTF-8"?>

<animation-list android:oneshot="false"

xmlns:android="http://schemas.android.com/apk/res/android">

<item android:duration="150" android:drawable="@drawable/loading_01" />

<item android:duration="150" android:drawable="@drawable/loading_02" />

<item android:duration="150" android:drawable="@drawable/loading_03" />

<item android:duration="150" android:drawable="@drawable/loading_04" />

<item android:duration="150" android:drawable="@drawable/loading_05" />

<item android:duration="150" android:drawable="@drawable/loading_06" />

<item android:duration="150" android:drawable="@drawable/loading_07" />

</animation-list>

二、通过自定义颜色实现

定义res/drawable/progress_small.xml如下:

[html]

<?xml version="1.0" encoding="utf-8"?>

<rotate xmlns:android="http://schemas.android.com/apk/res/android"

android:fromDegrees="0"

android:pivotX="50%"

android:pivotY="50%"

android:toDegrees="360" >

<shape

android:innerRadiusRatio="3"

android:shape="ring"

android:thicknessRatio="8"

android:useLevel="false" >

<gradient

android:centerColor="#FFFFFF"

android:centerY="0.50"

android:endColor="#1E90FF"

android:startColor="#000000"

android:type="sweep"

android:useLevel="false" />

</shape>

</rotate>

<?xml version="1.0" encoding="utf-8"?>

<rotate xmlns:android="http://schemas.android.com/apk/res/android"

android:fromDegrees="0"

android:pivotX="50%"

android:pivotY="50%"

android:toDegrees="360" >

<shape

android:innerRadiusRatio="3"

android:shape="ring"

android:thicknessRatio="8"

android:useLevel="false" >

<gradient

android:centerColor="#FFFFFF"

android:centerY="0.50"

android:endColor="#1E90FF"

android:startColor="#000000"

android:type="sweep"

android:useLevel="false" />

</shape>

</rotate>

三、使用一张图片进行自定义

定义res/drawable/progress_small.xml如下:

[html]

<rotate xmlns:android="http://schemas.android.com/apk/res/android"

android:drawable="@drawable/spinner_black_16"

android:pivotX="50%"

android:pivotY="50%"

android:fromDegrees="0"

android:toDegrees="360" />

<rotate xmlns:android="http://schemas.android.com/apk/res/android"

android:drawable="@drawable/spinner_black_16"

android:pivotX="50%"

android:pivotY="50%"

android:fromDegrees="0"

android:toDegrees="360" />

使用方法都一样, 如下:

[html]

<ProgressBar

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:indeterminateDrawable="@drawable/progress_small"/>

<ProgressBar

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:indeterminateDrawable="@drawable/progress_small"/>

也可以根据需要通过设置style来设置其大小! 一般只有使用默认的ProgrressBar的时候采用。对于上述三种自定义的方式,建议修改直接修改图片大小,或者shape;

[html]

<ProgressBar

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

style="?android:attr/progressBarStyleSmall"

android:indeterminateDrawable="@drawable/progress_small"/>

<ProgressBar

android:layout_width="wrap_content"

android:layout_height="wrap_content"

android:layout_centerInParent="true"

style="?android:attr/progressBarStyleSmall"

android:indeterminateDrawable="@drawable/progress_small"/>

设置成progressBarStyleSmall后,图标变校

设置成progressBarStyleLarge后,图标变大

赞助本站

人工智能实验室

相关热词: 进度条 ProgressBar android

AiLab云推荐
展开

热门栏目HotCates

Copyright © 2010-2024 AiLab Team. 人工智能实验室 版权所有    关于我们 | 联系我们 | 广告服务 | 公司动态 | 免责声明 | 隐私条款 | 工作机会 | 展会港