Activity外调用startActivity报错Android.util.AndroidRuntimeException的解决方法

今天在APP重启后点击activity跳转时出现报错:

 Caused by: Android.util.AndroidRuntimeException: Calling startActivity() from outside of an Activity  context requires the FLAG_ACTIVITY_NEW_TASK flag. Is this really what you want?

解决方法:

Intent intent = new Intent(this, NewActivity.class); 
intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS); 
startActivity(intent);