原文地址：https://www.sohu.com/a/194540614_663371 效果图： 
Usage Step 1
Add dependencies in build.gradle.
dependencies{ compile'com.wang.avi:library:2.1.3'} Step 2
Add the AVLoadingIndicatorView to your layout:
Simple
Advance
Step 3
It's very simple use just like .
voidstartAnim(){ avi .show(); // or avi.smoothToShow();} voidstopAnim(){ avi .hide(); // or avi.smoothToHide();} Custom Indicator
See MyCustomIndicator in Sample .
Proguard
When using proguard need add rules:
-keep classcom.wang.avi.** { *; }-keep classcom.wang.avi.indicators.** { *; }
Indicators is load from class names, proguard may change it (rename).
Indicators
As seen above in the Demo, the indicators are as follows:
Row 1
BallPulseIndicator
BallGridPulseIndicator
BallClipRotateIndicator
BallClipRotatePulseIndicator
Row 2
SquareSpinIndicator
BallClipRotateMultipleIndicator
BallPulseRiseIndicator
BallRotateIndicator
Row 3
CubeTransitionIndicator
BallZigZagIndicator
BallZigZagDeflectIndicator
BallTrianglePathIndicator
Row 4
BallScaleIndicator
LineScaleIndicator
LineScalePartyIndicator
BallScaleMultipleIndicator
Row 5
BallPulseSyncIndicator
BallBeatIndicator
LineScalePulseOutIndicator
LineScalePulseOutRapidIndicator
Row 6
BallScaleRippleIndicator
BallScaleRippleMultipleIndicator
BallSpinFadeLoaderIndicator
LineSpinFadeLoaderIndicator
Row 7
TriangleSkewSpinIndicator
PacmanIndicator
BallGridBeatIndicator
SemiCircleSpinIndicator
Row 8
com.wang.avi.sample.MyCustomIndicator
來源：NVActivityIndicatorView
