本文将带你了解Android应用开发之Custom  indeterminate ProgressBar，希望本文对大家学Android有所帮助

自定义 Indeterminate ProgressBar：
先定义一个ring shape
custom_progress_bar.xml
Java代码  <?xml version="1.0" encoding="utf-8"?>  <rotate xmlns:android="//schemas.android.com/apk/res/android"      android:duration="4000"      android:fromDegrees="0"      android:pivotX="50%"      android:pivotY="50%"      android:toDegrees="1440">        <shape          android:innerRadius="9dp"          android:shape="ring"          android:thickness="2dp"          android:useLevel="false">          <size              android:width="22dp"              android:height="22dp" />          <gradient              android:centerColor="#991994EC"              android:centerY="0.5"              android:endColor="#1DB2EE"              android:startColor="#00ec7e2a"              android:type="sweep"              android:useLevel="false" />      </shape>    </rotate>  <?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="//schemas.android.com/apk/res/android"
    android:duration="4000"
    android:fromDegrees="0"
    android:pivotX="50%"
    android:pivotY="50%"
    android:toDegrees="1440">

    <shape
        android:innerRadius="9dp"
        android:shape="ring"
        android:thickness="2dp"
        android:useLevel="false">
        <size
            android:width="22dp"
            android:height="22dp" />
        <gradient
            android:centerColor="#991994EC"
            android:centerY="0.5"
            android:endColor="#1DB2EE"
            android:startColor="#00ec7e2a"
            android:type="sweep"
            android:useLevel="false" />
    </shape>

</rotate>

直接在layout中使用
Java代码  <ProgressBar                          android:layout_width="wrap_content"                          android:layout_height="wrap_content"                          android:indeterminateDrawable="@drawable/custom_progress_bar"                          android:minWidth="25dp" />  <ProgressBar
                        android:layout_width="wrap_content"
                        android:layout_height="wrap_content"
                        android:indeterminateDrawable="@drawable/custom_progress_bar"
                        android:minWidth="25dp" />

注意定义上面的android:minWidth,可以调整ProgressBar的Padding效果

5.0以上，自定义progressbar的颜色，可以简单使用：
android:indeterminateTintMode="src_atop"
android:indeterminateTint="@color/your_customized_color"    

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