错误日志
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android.view.WindowManager$BadTokenException: Unable to add window -- token android.os.BinderProxy@427b7270 is not valid; is your activity running?
at android.view.ViewRootImpl.setView(ViewRootImpl.java:653)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:326)
at android.view.WindowManagerImpl.addView(WindowManagerImpl.java:224)
at android.view.WindowManagerImpl$CompatModeWrapper.addView(WindowManagerImpl.java:149)
at android.view.Window$LocalWindowManager.addView(Window.java:558)
at android.app.Dialog.show(Dialog.java:316)
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错误原因
错误原因是Dialog在show的时候必须要有一个activity作为窗口载体，上面的日志的意思是承载Dialog的activity已经被销毁了，不存在了
解决办法
1、在show之前加判断activity是否被销毁了
if(!isFinishing()){
dialog.show();
}