Can't create handler inside thread that has not called Looper.prepare()

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E/AndroidRuntime: FATAL EXCEPTION: pool-4-thread-1                                                                     Process: PID: 3961//这里是因为在子线程中进行了startActivity()                                                                   java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()                                                                         at android.os.Handler.<init>(Handler.java:200)                                                                         at android.os.Handler.<init>(Handler.java:114)                                                                         at android.app.ActivityTransitionCoordinator.<init>(ActivityTransitionCoordinator.java:215)                                                                         at android.app.ExitTransitionCoordinator.<init>(ExitTransitionCoordinator.java:75)                                                                         at android.app.ActivityOptions.makeSceneTransitionAnimation(ActivityOptions.java:538)                                                                                                                                          at com.hyphenate.chat.EMClient$6.run(Unknown Source)                                                                         at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)                                                                         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)                                                                         at java.lang.Thread.run(Thread.java:818) E/WindowManager: android.view.WindowLeaked: Activity LoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{b45027b V.E..... R......D 0,0-540,276} that was originally added here                                                                        at android.view.ViewRootImpl.<init>(ViewRootImpl.java:382)                                                                        at android.view.WindowManagerGlobal.addView(WindowManagerGlobal.java:271)                                                                        at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:85)                                                                        at android.app.Dialog.show(Dialog.java:310)                                                                        at android.view.View.performClick(View.java:4785)                                                                        at android.view.View$PerformClick.run(View.java:19884)                                                                        at android.os.Handler.handleCallback(Handler.java:739)                                                                        at android.os.Handler.dispatchMessage(Handler.java:95)                                                                        at android.os.Looper.loop(Looper.java:147)                                                                        at android.app.ActivityThread.main(ActivityThread.java:5513)                                                                        at java.lang.reflect.Method.invoke(Native Method)                                                                        at java.lang.reflect.Method.invoke(Method.java:372)                                                                        at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:970)                                                                        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:765)

android.view.WindowLeaked: Activity LoginActivity has leaked window com.android.internal.policy.impl.PhoneWindow$DecorView{b45027b V.E….. R……D 0,0-540,276} that was originally added here

原因是：在跳转activity时，dialog 弹窗未销毁。调用dismiss 或者是cancel。

java.lang.RuntimeException: Can’t create handler inside thread that has not called Looper.prepare()

这里是因为在子线程中进行了startActivity()，5.0以上就会crash
5.0以上我的写法是：
startActivity(intent,ActivityOptions.makeSceneTransitionAnimation(activity).toBundle());

5.0以下，我的写法是：
activity.startActivity(intent);

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