Android自己写一个动画
1.1，动画：
<?xml version="1.0" encoding="utf-8"?>
<rotate xmlns:android="https://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>
1.2，图片动画
<?xml version="1.0" encoding="utf-8"?>
<animated-rotate xmlns:android="https://schemas.android.com/apk/res/android"
android:drawable="@drawable/wifi_progress_img"
android:pivotX="50%"
android:pivotY="50%" />
2，xml 中的ProgressBar：
<ProgressBar
android:id="@+id/progressBar_openwifi"
style="?android:attr/progressBarStyleLarge"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:focusable="false"
android:indeterminateDrawable="@drawable/progress_wait_wifi" />
