独角兽企业重金招聘Python工程师标准>>>
一、通过动画实现
定义res/anim/loading.xml如下:
[html]view plain copy print ? <?xmlversion="1.0"encoding="UTF-8"?> <animation-listandroid:oneshot="false" xmlns:android="/apk/res/android"> <itemandroid:duration="150"android:drawable="@drawable/loading_01"/> <itemandroid:duration="150"android:drawable="@drawable/loading_02"/> <itemandroid:duration="150"android:drawable="@drawable/loading_03"/> <itemandroid:duration="150"android:drawable="@drawable/loading_04"/> <itemandroid:duration="150"android:drawable="@drawable/loading_05"/> <itemandroid:duration="150"android:drawable="@drawable/loading_06"/> <itemandroid:duration="150"android:drawable="@drawable/loading_07"/> </animation-list>
<?xml version="1.0" encoding="UTF-8"?><animation-list android:oneshot="false"xmlns:android="/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]view plain copy print ? <?xmlversion="1.0"encoding="utf-8"?> <rotatexmlns:android="/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="/apk/res/android"android:fromDegrees="0"android:pivotX="50%"android:pivotY="50%"android:toDegrees="360" ><shapeandroid:innerRadiusRatio="3"android:shape="ring"android:thicknessRatio="8"android:useLevel="false" ><gradientandroid: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]view plain copy print ? <rotatexmlns:android="/apk/res/android" android:drawable="@drawable/spinner_black_16" android:pivotX="50%" android:pivotY="50%" android:fromDegrees="0" android:toDegrees="360"/>
<rotate xmlns:android="/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]view plain copy print ? <ProgressBar android:layout_width="wrap_content" android:layout_height="wrap_content" android:indeterminateDrawable="@drawable/progress_small"/>
<ProgressBarandroid: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]view plain copy print ? <ProgressBar android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_centerInParent="true" style="?android:attr/progressBarStyleSmall" android:indeterminateDrawable="@drawable/progress_small"/>
<ProgressBarandroid: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,图标变小。
设置成progressBarStyleLarge后,图标变大