android 进度条 自定义菊花

1.通过帧动画实现

定义res/anim/loading.xml如下：

<?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>

在layout文件中引用如下：

<ProgressBar android:id="@+id/loading_process_dialog_progressBar"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:indeterminate="false" android:indeterminateDrawable="@anim/loading" />

2.通过自定义颜色实现

定义res/drawable/dialog_style_xml_color.xml如下：

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

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

android:pivotX="50%" android:pivotY="50%" android:fromDegrees="0"

android:toDegrees="360">

<shape android:shape="ring" android:innerRadiusRatio="3"

android:thicknessRatio="8" android:useLevel="false">

<gradient android:type="sweep" android:useLevel="false"

android:startColor="#FFFFFF" android:centerColor="#FFDC35"

android:centerY="0.50" android:endColor="#CE0000" />

</shape>

</rotate>

在layout文件中引用如下：

<ProgressBar android:id="@+id/loading_process_dialog_progressBar"

android:layout_width="wrap_content" android:layout_height="wrap_content"

android:indeterminate="false" android:indeterminateDrawable="@drawable/dialog_style_xml_color" />

3.通过使用旋转一张图片定义实现

定义res/drawable/dialog_style_xml_icon.xml如下：

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

<layer-list xmlns:android="http://schemas.android.com/apk/res/android">

<item>

<rotate android:drawable="@drawable/dialog_progress_round"

android:fromDegrees="0.0" android:toDegrees="360.0" android:pivotX="50.0%"

android:pivotY="50.0%" />

</item>

</layer-list>