From 6703c4a37495a7a0dc6ec36f0168075d505bdea7 Mon Sep 17 00:00:00 2001
From: zhpanvip <zhpanvip@outlook.com>
Date: Thu, 17 Jun 2021 10:56:13 +0800
Subject: [PATCH] stopLoopWhenDetachedFromWindow supported for issue #207

---
 .../zhpan/banner/fragment/HomeFragment.java   |  1 +
 .../com/zhpan/bannerview/BannerViewPager.java | 21 +++++++++++++++++--
 .../bannerview/manager/BannerOptions.java     | 10 +++++++++
 3 files changed, 30 insertions(+), 2 deletions(-)

diff --git a/app/src/main/java/com/example/zhpan/banner/fragment/HomeFragment.java b/app/src/main/java/com/example/zhpan/banner/fragment/HomeFragment.java
index c911b2d..7cde800 100644
--- a/app/src/main/java/com/example/zhpan/banner/fragment/HomeFragment.java
+++ b/app/src/main/java/com/example/zhpan/banner/fragment/HomeFragment.java
@@ -189,6 +189,7 @@ private void initVerticalBanner() {
         mViewPagerVertical
             .setAutoPlay(true)
             .setScrollDuration(500)
+            .stopLoopWhenDetachedFromWindow(false)
             .setLifecycleRegistry(getLifecycle())
             .setIndicatorStyle(IndicatorStyle.ROUND_RECT)
             .setIndicatorSlideMode(IndicatorSlideMode.SCALE)
diff --git a/bannerview/src/main/java/com/zhpan/bannerview/BannerViewPager.java b/bannerview/src/main/java/com/zhpan/bannerview/BannerViewPager.java
index 56f797f..5ab0ce7 100644
--- a/bannerview/src/main/java/com/zhpan/bannerview/BannerViewPager.java
+++ b/bannerview/src/main/java/com/zhpan/bannerview/BannerViewPager.java
@@ -137,14 +137,20 @@ private void initView() {
 
   @Override
   protected void onDetachedFromWindow() {
-    stopLoop();
+    if (mBannerManager != null && mBannerManager.getBannerOptions()
+        .isStopLoopWhenDetachedFromWindow()) {
+      stopLoop();
+    }
     super.onDetachedFromWindow();
   }
 
   @Override
   protected void onAttachedToWindow() {
     super.onAttachedToWindow();
-    startLoop();
+    if (mBannerManager != null && mBannerManager.getBannerOptions()
+        .isStopLoopWhenDetachedFromWindow()) {
+      startLoop();
+    }
   }
 
   @Override
@@ -1087,6 +1093,17 @@ public BannerViewPager<T> setRTLMode(boolean rtlMode) {
     return this;
   }
 
+  /**
+   * @param stopLoopWhenDetachedFromWindow 当BVP滑动出屏幕的时候是否要停止轮播，
+   *
+   * true:滑动出屏幕停止自动轮播，false:滑动出屏幕继续自动轮播。默认值为true
+   */
+  public BannerViewPager<T> stopLoopWhenDetachedFromWindow(boolean stopLoopWhenDetachedFromWindow) {
+    mBannerManager.getBannerOptions()
+        .setStopLoopWhenDetachedFromWindow(stopLoopWhenDetachedFromWindow);
+    return this;
+  }
+
   /**
    * @deprecated Use {@link BannerViewPager#disallowParentInterceptDownEvent(boolean)} instead.
    */
diff --git a/bannerview/src/main/java/com/zhpan/bannerview/manager/BannerOptions.java b/bannerview/src/main/java/com/zhpan/bannerview/manager/BannerOptions.java
index 2f7caa2..e17d877 100644
--- a/bannerview/src/main/java/com/zhpan/bannerview/manager/BannerOptions.java
+++ b/bannerview/src/main/java/com/zhpan/bannerview/manager/BannerOptions.java
@@ -70,6 +70,8 @@ public BannerOptions() {
 
   private boolean disallowParentInterceptDownEvent;
 
+  private boolean stopLoopWhenDetachedFromWindow = true;
+
   private final IndicatorOptions mIndicatorOptions;
 
   public int getInterval() {
@@ -296,6 +298,14 @@ public void setRtl(boolean rtl) {
         rtl ? IndicatorOrientation.INDICATOR_RTL : IndicatorOrientation.INDICATOR_HORIZONTAL);
   }
 
+  public boolean isStopLoopWhenDetachedFromWindow() {
+    return stopLoopWhenDetachedFromWindow;
+  }
+
+  public void setStopLoopWhenDetachedFromWindow(boolean stopLoopWhenDetachedFromWindow) {
+    this.stopLoopWhenDetachedFromWindow = stopLoopWhenDetachedFromWindow;
+  }
+
   public static class IndicatorMargin {
 
     private final int left, right, top, bottom;