[移动开发]android p activity界面切换黑屏

11-18 18:15:29.547 V/ActivityManager(  877): Resuming ActivityRecord{94d54b2 u0 com.adyen.startfirst/.SecondaryActivity t16055}
11-18 18:15:29.547 D/ActivityManager(  877): allPausedActivitiesComplete: r=ActivityRecord{d575aaf u0 com.adyen.startsecond/.MainActivity t15948} state=PAUSING
11-18 18:15:29.547 V/ActivityManager(  877): resumeTopActivityLocked: Skip resume: some activity pausin

提示log如上，pause 为完成，resume return
修改：

diff --git a/frameworks/base/services/core/java/com/android/server/am/ActivityStack.java b/frameworks/base/services/core/java/com/android/server/am/ActivityStack.java
old mode 100644
new mode 100755
index 271ca68..ab42363
--- a/frameworks/base/services/core/java/com/android/server/am/ActivityStack.java
+++ b/frameworks/base/services/core/java/com/android/server/am/ActivityStack.java
@@ -2448,6 +2448,15 @@ class ActivityStack<T extends StackWindowController> extends ConfigurationContai
             if (DEBUG_SWITCH || DEBUG_PAUSE || DEBUG_STATES) Slog.v(TAG_PAUSE,
                     "resumeTopActivityLocked: Skip resume: some activity pausing.");
             if (DEBUG_STACK) mStackSupervisor.validateTopActivitiesLocked();
+            //<!--jicong.wang modify for task 17695
+            mHandler.postDelayed(new Runnable() {
+                @Override
+                public void run() {
+                    Slog.v(TAG_PAUSE, "wangjicong delay to resumetop");
+                    resumeTopActivityInnerLocked(prev,options);
+                }
+            },20);
+            //jicong.wang modify for task 17695 -->
             return false;
         }